Instruction/ maintenance manual of the product LG-C320 LG Electronics
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Service Manual Model : LG-C320 Internal Use Only Service Manual LG-C320 Date: October , 2010 / Issue 1.0.
- 3 - Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes L GE Internal Use Only T able Of Con tents 1. INT ROD UCTI ON . ... ... ... ... ... .... ... ... ... ... ... ... ... .... ... ... ... ... ... ...
- 4 - L GE Internal Use Only Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes.
- 5 - Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes L GE Internal Use Only 1. INTRODUCTION 1. INTRODUCTION Intr oduc tion 1.1 Purpose This manual provides t he information necessary to repair, calibration, d escription and download th e features of this model.
- 6 - L GE Internal Use Only Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes 1. INTRODUCTION G E. Notice of Radiated Emissions This model complies wi th rules regarding radiation and radio frequenc y emission as defined by local regulatory agencies.
- 7 - Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes L GE Internal Use Only 1. INTRODUCTION ʹΠΡΪ ΣΚΘΙΥ ͑ι ͣͨ͑͡͡ͽ ͑ͶΝΖΔ ΥΣ.
- 8 - L GE Internal Use Only Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes 1. INTRODUCTION ʹΠΡΪ ΣΚΘΙΥ ͑ι ͣͨ͑͡͡ͽ ͑ͶΝΖΔ ΥΣ.
- 9 - Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes L GE Internal Use Only 2. PERFORMANCE 2 . PERFORMANCE 3 2.
- 10 - L GE Internal Use Only Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes 2 . PERFORMANCE 4 2.4 HW F eatures Item Fea ture Comme nt F orm F actor Slide type 1) Capacity Standard : Li-Ion, 900 mAh Battery 2) Pa cking T ype : Soft Pack Size Standard : 91 x 63 x 15.
- 11 - Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes L GE Internal Use Only 2 . PERFORMANCE 5 Music Player MP3/AAC /AAC+/WM A Video Player PEG4, H.
- 12 - L GE Internal Use Only Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes 2 . PERFORMANCE 6 2.5 SW F eatures Item Fea ture Comme nt RSSI 0 ~ 7 L.
- 13 - Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes L GE Internal Use Only 2 . PERFORMANCE 7 Cell Broadca st Y es Download O ver the W AP Game Y es Calendar Y es Memo Y es 100 W orld Clock Y es Unit Con vert Y es Stop Wa tch Y es W all P aper Y es W AP Browser Over W AP 2.
- 14 - L GE Internal Use Only Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes 2 . PERFORMANCE 8 2.6 HW SPEC. 1) GSM transc eiver specifica tion Item Specification Phase Error Rms : 5° P eak : 20 ° F requency Error GSM : 0.
- 15 - Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes L GE Internal Use Only 2 . PERFORMANCE 9 2.7 C320 Figur es.
- 16 - L GE Internal Use Only Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes 3. TECHNIC AL BRIEF 3 . TECHNIC AL BRIEF 2. Base Band Technical Description 3.1 General Descri ption QSC6270 (3G disable)has all eight major func tional blocks as like Figure 3.
- 17 - Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes L GE Internal Use Only 3. TECHNIC AL BRIEF 3.1.1 Processor The QSC627 0(3Gdisable) device integrates multiple processors on-chip: one ARM microp rocessor and two DSP processors.
- 18 - L GE Internal Use Only Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes 3. TECHNIC AL BRIEF 3.1.2 Memory supp ort (and LCD interface) The QSC62x0 device has two exte rnal bus interface (EBI) ports: EBI1 and EBI 2.
- 19 - Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes L GE Internal Use Only 3. TECHNIC AL BRIEF QSC6270 (3G disable) QVGA Main LCD (2.4", 320x240) EBI2_DATA[15:0] LCD_ADS LCD_CS_N EBI2_WE_N LCD_RST LDO_LCD_2.
- 20 - L GE Internal Use Only Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes 3. TECHNIC AL BRIEF 3.1.3 Connectiv ity QSC6270 has connectivi ty features as below – USB-OTG; USB LS, FS, and HS (2.0 compliant) – I2C compatible for periph eral controls (1.
- 21 - Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes L GE Internal Use Only 3. TECHNIC AL BRIEF Figure 3.
- 22 - L GE Internal Use Only Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes 3. TECHNIC AL BRIEF 3.
- 23 - Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes L GE Internal Use Only 3. TECHNIC AL BRIEF 3.
- 24 - L GE Internal Use Only Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes 3. TECHNIC AL BRIEF 3.1.7.2 Mobil e display processor The MDP is a hardware accelerator primarily responsible for transferring an updated image f rom the QSC memory subsystem to the LCD module.
- 25 - Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes L GE Internal Use Only 3. TECHNIC AL BRIEF Figure 3.
- 26 - L GE Internal Use Only Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes 3. TECHNIC AL BRIEF 3.
- 27 - Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes L GE Internal Use Only 3. TECHNIC AL BRIEF QSC6270HK ADC Block diagr am.
- 28 - L GE Internal Use Only Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes 3. TECHNIC AL BRIEF 3.
- 29 - Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes L GE Internal Use Only 3. TECHNIC AL BRIEF 3.2.2 Output vo ltage regulation The QSC62x0 device includes all the r egulated voltages needed for most low-cost wireless handset applications (and many other applications).
- 30 - L GE Internal Use Only Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes 3. TECHNIC AL BRIEF Table 3.2. 2 Voltage regulator summary 1. All regulator names are based on their in tended use, though some may be used to power alternate functions.
- 31 - Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes L GE Internal Use Only 3. TECHNIC AL BRIEF 3.2.3 Charg ing cont rol C320 use single Charger. - Single charger has five mode like “ OFF / TR ICKLE / ISET / USB500 / F ACTORY mode”.
- 32 - L GE Internal Use Only Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes 3. TECHNIC AL BRIEF 3.3 SUB SYSTEM 3.3.1 KEY PAD C320 have a key-coder IC that supports eight sense lines, or columns, and eight keypad rows.
- 33 - Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes L GE Internal Use Only 3. TECHNIC AL BRIEF ̰ SDRAM -16-bit low-power DDR S DRAM -Minimum siz.
- 34 - L GE Internal Use Only Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes 3. TECHNIC AL BRIEF 3.3.3 Camera Interface ( 2M CAMERA ) 3.3.3.1 2M CAMERA C320 Installed a 2M Pixel Camera. Below picture shows the camera board to board connecto r and camera I/F signal.
- 35 - Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes L GE Internal Use Only 3. TECHNIC AL BRIEF 0 1 5 6 4 7 3 8 2 9 1 0 1 5 6 4 7 3 8 2 9 1 0 1 5 .
- 36 - L GE Internal Use Only Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes 3. TECHNIC AL BRIEF 3.3.4 LCD Modul e (LQ024Q3UX01 : SHARP) The DM24-DSM0 4 model is a Color TFT LCD supplied by LG Innot ek.
- 37 - Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes L GE Internal Use Only 3. TECHNIC AL BRIEF Input Signal and Power : Pin Description ( Input P.
- 38 - L GE Internal Use Only Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes 3. TECHNIC AL BRIEF.
- 39 - Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes L GE Internal Use Only 3. TECHNIC AL BRIEF 3.3.5 Audio Signal Pro cessing & Interface Audio signal processing is divided uplink path and downlink path.
- 40 - L GE Internal Use Only Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes 3. TECHNIC AL BRIEF G 3.4 GENERAL DESC RIPTION The RF platf orm of C320 supports four communication bands (GSM850 / GSM 900 / GSM1800 / GSM1900).
- 41 - Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes L GE Internal Use Only 3. TECHNIC AL BRIEF G 3.5 GSM MODE The EDGE/GPRS /GSM transceiv er use a digital inter face tha t is shared betwee n receiv e and transmit data.
- 42 - L GE Internal Use Only Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes 3. TECHNIC AL BRIEF G The second do wnconv erter accepts inputs fr om another two LNAs ( again, just one is active at time) and is dedicated t o GSM 900 and GSM 1800 ope ration.
- 43 - Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes L GE Internal Use Only 3. TECHNIC AL BRIEF G 3.5.2 GSM TR ANSMITTER The RF transmitt ers are lever aged from pr evious-generation RTR™ devices , including the latest inno vations .
- 44 - L GE Internal Use Only Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes 3. TECHNIC AL BRIEF G 3.
- 45 - Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes L GE Internal Use Only 3. TECHNIC AL BRIEF G 3.6.2 GSM850/EGSM/DCS/PCS Dual band T ransmit Po wer A mplifier (U101: SK Y77336) The dual band P A is operating to trans mit for low band ( GSM-850, GSM-900) and high band (GSM-1800, GSM1900).
- 46 - L GE Internal Use Only Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes 3. TECHNIC AL BRIEF G 3.7 OFF-C HIP C OMPONENTS 3.7.1 Bluetooth (BCM2070) Bluetooth block of L G-C320 consists of a BCM2070 chi p-set, an external cr ystal oscillator(26MHz), and a Bluetooth chip antenna (2.
- 47 - Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes L GE Internal Use Only 3. TECHNIC AL BRIEF G [T able 3.
- 48 - L GE Internal Use Only Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes 3. TECHNIC AL BRIEF G 3.7.2 FM Rec eiver (TEA5991) The TEA5991 is a single chip F M stereo r adio with RDS and RBDS dec oder .
- 49 - Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes L GE Internal Use Only 3. TECHNIC AL BRIEF G SYMBOL HVQFN WLCSP DESCRIPTI ON AGND 1 F1 Analog.
- 50 - L GE Internal Use Only Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes 4. TROUBLE SHOO TING 4 .
- 51 - Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes L GE Internal Use Only 4. TROUBLE SHOO TING Power ON Troubleshooting TP3 TP4 TP2 TP1 VREG _ R.
- 52 - L GE Internal Use Only Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes 4. TROUBLE SHOO TING ൯ Charging Procedure - Connect TA or USB Cable .
- 53 - Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes L GE Internal Use Only 4. TROUBLE SHOO TING Charger Troubleshooting FL401 TP1 TP1.
- 54 - L GE Internal Use Only Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes 4. TROUBLE SHOO TING 4.
- 55 - Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes L GE Internal Use Only 4. TROUBLE SHOO TING USB Troubleshoo ting kt kw TP1 TP2 TP3 FL401 VBUS.
- 56 - L GE Internal Use Only Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes 4. TROUBLE SHOO TING 4.
- 57 - Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes L GE Internal Use Only 4. TROUBLE SHOO TING USIM Troubleshooting TP1 TP3 TP2 MUSIM_DM MUSIM_D.
- 58 - L GE Internal Use Only Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes 4. TROUBLE SHOO TING 4.5 Camera Trou bleshootin g Camera control signals are generated by QSC627 0. Camera Troubleshooting ST ART CAM _A VDD_2 .
- 59 - Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes L GE Internal Use Only 4. TROUBLE SHOO TING CAM_70MHz PCLK CAM_24MHz MCLK Camera Troubleshoot.
- 60 - L GE Internal Use Only Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes 4. TROUBLE SHOO TING 4.6 Main si de view LED Trou bleshoot ing MAIN Key Pad LED is on as below : Key pressing Æ LED_CON go down low (below 0.
- 61 - Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes L GE Internal Use Only 4. TROUBLE SHOO TING 4.7 Slide Key side view LED Troubleshootin g Sub Key Pad Slide is on as below : Key pressing Æ LED_CON go down low (below 0.
- 62 - L GE Internal Use Only Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes 4. TROUBLE SHOO TING Slide Key side view Troubleshooting LED TP1 LED T.
- 63 - Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes L GE Internal Use Only 4. TROUBLE SHOO TING 4.
- 64 - L GE Internal Use Only Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes 4. TROUBLE SHOO TING [Slide Side view placement] LCD Troubleshoot ing.
- 65 - Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes L GE Internal Use Only 4. TROUBLE SHOO TING 4.
- 66 - L GE Internal Use Only Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes 4. TROUBLE SHOO TING F_SUB_FPCB t o Main PCB Conne ctor(CN101) Main to.
- 67 - Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes L GE Internal Use Only 4. TROUBLE SHOO TING 4.
- 68 - L GE Internal Use Only Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes 4. TROUBLE SHOO TING Main to Sli de FPCB Connect or(CN801) 1 27 TP1 15.
- 69 - Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes L GE Internal Use Only 4. TROUBLE SHOO TING TP4_ Receiver PAD=CN101 1 27 Slide FPCB to Main P.
- 70 - L GE Internal Use Only Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes 4. TROUBLE SHOO TING 4.11 Headset path QSC6270(3G disable) HPH_OU T_L_P/N Æ TP1_C506,C507 Æ IC501(Audio Sub System) Æ TP2_R504,R505 Æ TP3_FB504, FB505 Æ J501(=3.
- 71 - Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes L GE Internal Use Only 4. TROUBLE SHOO TING TP3 _FB504 TP3 _FB505 TP2_ R504 TP2_ R505 HS_GND .
- 72 - L GE Internal Use Only Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes 4. TROUBLE SHOO TING Audio Sub syste m IC501 TP1 _C506 TP1 _C507 GND HS_R SPK_N SPK_P MUIC_AUD_FM_I2C_SCL MUIC_AUD_FM_I2C_SDA SPK_OUT_ N SPK_OUT_P HS_OUT_R HS_OUT_L HS_L WM9093 is possible to 1.
- 73 - Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes L GE Internal Use Only 4. TROUBLE SHOO TING 4.
- 74 - L GE Internal Use Only Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes 4. TROUBLE SHOO TING TP1_ C508 Audio Sub System(IC501) TP1 _C509 TP2_ FB507 TP2 _FB508 GND HS_R SPK_N SPK_P MUIC_AUD_FM_I2C_SCL MUIC_AUD_FM_I2C_SDA SPK_OUT_ N SPK_OUT_P HS_OUT_R HS_OUT_L HS_L WM9093 is possible to 1.
- 75 - Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes L GE Internal Use Only 4. TROUBLE SHOO TING TP3 Main to F_S UB_FPCB Connector(CN 803) 1 10 TP.
- 76 - L GE Internal Use Only Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes 4. TROUBLE SHOO TING F_SUB_FPCB t o Main PCB Connector(CN 101) 1 10 TP.
- 77 - Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes L GE Internal Use Only 4. TROUBLE SHOO TING TP5_ CN102(=Speaker Pad) 2 1 CN102 SPK_OUT_P SPK_.
- 78 - L GE Internal Use Only Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes 4. TROUBLE SHOO TING 4.13 Main micr ophone MIC501 Æ VMI C_BIAS_P(TP1_C526) Æ MAIN_MIC_P(TP2_C261) Æ MIC 1P PAD of QSC6270(3G disable) Make a cal l MIC _BI AS(TP1_C 526 ) is abo ut 1.
- 79 - Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes L GE Internal Use Only 4. TROUBLE SHOO TING MIC501 TP1 _C526 TP2 _C261 D N G _ C I M _ N I A .
- 80 - L GE Internal Use Only Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes 4. TROUBLE SHOO TING 4.
- 81 - Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes L GE Internal Use Only 4. TROUBLE SHOO TING TP1 _R502 TP2 _FB503 TP3 _C263 U501 D N G _ S H TP3 VREG_MSMP_2V6 HS_GND HS_MIC_P|Hook_ADC FM_ANT HS_OUT_R HS_OUT_L HS_JACK_DET ´ëüǰ : EUSY0407501 NC RP183K181D is possible to 1.
- 82 - L GE Internal Use Only Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes 4. TROUBLE SHOO TING 㝘⪌HG 㵬㦤G 㠄⸬㡸G 㵲㡸G ㍌G 㛺㏩⏼␘UU㝘⪌HG 㵬㦤G 㠄⸬ 㡸G 㵲㡸G ㍌G 㛺㏩⏼␘UG 4.
- 83 - Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes L GE Internal Use Only 4. TROUBLE SHOO TING 㝘⪌HG 㵬㦤G 㠄⸬㡸G 㵲㡸G ㍌G 㛺㏩⏼␘UU㝘⪌HG 㵬㦤G 㠄⸬ 㡸G 㵲㡸G ㍌G 㛺㏩⏼␘UG G G 4.
- 84 - L GE Internal Use Only Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes 4. TROUBLE SHOO TING 㝘⪌HG 㵬㦤G 㠄⸬㡸G 㵲㡸G ㍌G 㛺㏩⏼␘UU㝘⪌HG 㵬㦤G 㠄⸬ 㡸G 㵲㡸G ㍌G 㛺㏩⏼␘UG G G 4.
- 85 - Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes L GE Internal Use Only 4. TROUBLE SHOO TING Setu p T est Equ ipn men t Ce ll po wer = -74 dbm.
- 86 - L GE Internal Use Only Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes 4. TROUBLE SHOO TING 㝘⪌HG 㵬㦤G 㠄⸬㡸G 㵲㡸G ㍌G 㛺㏩⏼␘UU㝘⪌HG 㵬㦤G 㠄⸬ 㡸G 㵲㡸G ㍌G 㛺㏩⏼␘UG G G 4.
- 87 - Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes L GE Internal Use Only 4. TROUBLE SHOO TING 㝘⪌HG 㵬㦤G 㠄⸬㡸G 㵲㡸G ㍌G 㛺㏩.
- 88 - L GE Internal Use Only Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes 4. TROUBLE SHOO TING 㝘⪌HG 㵬㦤G 㠄⸬㡸G 㵲㡸G ㍌G 㛺㏩.
- 89 - Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes L GE Internal Use Only 4. TROUBLE SHOO TING 㝘⪌HG 㵬㦤G 㠄⸬㡸G 㵲㡸G ㍌G 㛺㏩⏼␘UU㝘⪌HG 㵬㦤G 㠄⸬ 㡸G 㵲㡸G ㍌G 㛺㏩⏼␘UG G G 4.
- 90 - L GE Internal Use Only Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes 4. TROUBLE SHOO TING 㝘⪌HG 㵬㦤G 㠄⸬㡸G 㵲㡸G ㍌G 㛺㏩.
- 91 - Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes L GE Internal Use Only 4. TROUBLE SHOO TING 㝘⪌HG 㵬㦤G 㠄⸬㡸G 㵲㡸G ㍌G 㛺㏩⏼␘UU㝘⪌HG 㵬㦤G 㠄⸬ 㡸G 㵲㡸G ㍌G 㛺㏩⏼␘UG G G 4.
- 92 - L GE Internal Use Only Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes 4. TROUBLE SHOO TING 㝘⪌HG 㵬㦤G 㠄⸬㡸G 㵲㡸G ㍌G 㛺㏩⏼␘UU㝘⪌HG 㵬㦤G 㠄⸬ 㡸G 㵲㡸G ㍌G 㛺㏩⏼␘UG G G 4.
- 93 - Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes L GE Internal Use Only 4. TROUBLE SHOO TING 㝘⪌HG 㵬㦤G 㠄⸬㡸G 㵲㡸G ㍌G 㛺㏩⏼␘UU㝘⪌HG 㵬㦤G 㠄⸬ 㡸G 㵲㡸G ㍌G 㛺㏩⏼␘UG G G 4.
- 94 - L GE Internal Use Only Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes 4. TROUBLE SHOO TING 㝘⪌HG 㵬㦤G 㠄⸬㡸G 㵲㡸G ㍌G 㛺㏩.
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- 96 - L GE Internal Use Only Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes 4. TROUBLE SHOO TING 㝘⪌HG 㵬㦤G 㠄⸬㡸G 㵲㡸G ㍌G 㛺㏩⏼␘UU㝘⪌HG 㵬㦤G 㠄⸬ 㡸G 㵲㡸G ㍌G 㛺㏩⏼␘UG G G 4.
- 97 - Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes L GE Internal Use Only 4. TROUBLE SHOO TING ST ART TP1 , TP2 Che ck the Si ana l C han ge the.
- 98 - L GE Internal Use Only Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes 4. TROUBLE SHOO TING 㝘⪌HG 㵬㦤G 㠄⸬㡸G 㵲㡸G ㍌G 㛺㏩⏼␘UU㝘⪌HG 㵬㦤G 㠄⸬ 㡸G 㵲㡸G ㍌G 㛺㏩⏼␘UG G G TP# TP description TP1 VREG_MSM P_2.
- 99 - Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes L GE Internal Use Only 5. DOWNL OAD 5. DOWNL OAD - 164 - L GE Internal Use Only Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes 5.
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- 103 - Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes L GE Internal Use Only - 168 - L GE Internal Use Only Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes 5.
- 104 - L GE Internal Use Only Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes - 169 - Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes L GE Internal Use Only 5.
- 105 - Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes L GE Internal Use Only - 170 - L GE Internal Use Only Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes 5.
- 106 - L GE Internal Use Only Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes - 171 - Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes L GE Internal Use Only 5.
- 107 - Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes L GE Internal Use Only - 172 - L GE Internal Use Only Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes 5.
- 108 - L GE Internal Use Only Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes - 173 - Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes L GE Internal Use Only 5.
- 109 - Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes L GE Internal Use Only - 174 - L GE Internal Use Only Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes 5.
- 110 - L GE Internal Use Only Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes - 175 - Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes L GE Internal Use Only 5.
- 111 - Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes L GE Internal Use Only - 176 - L GE Internal Use Only Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes 5.
- 112 - L GE Internal Use Only Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes 6. BL OCK DIAGRAM 6.
- 113 - Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes L GE Internal Use Only 6. BL OCK DIAGRAM ESC6270_BB/RF ESC6270 POWER 51#F653#KZ#Eorfn#Gldjudp#=#Srzhu#b4# VDD_CORE VREG_MSMC_1V2 TA (5PIN) 5.
- 114 - L GE Internal Use Only Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes 6. BL OCK DIAGRAM VBA T 51#F653#KZ#Eorfn#Gldjudp#=#Srzhu#b5# VBA T RT9396 (SUB PMIC) LDO1(150m A ) LDO2( 150mA ) VLDO_CAM_2V8 VLDO_CAM_1V8 VLDO LCD 2V8 LCD_2.
- 115 - Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes L GE Internal Use Only 6. BL OCK DIAGRAM EBI2_D ATA [0: 15] NAND CS1 N 61#F653#KZ#Eorfn#Gldjud p#=#EE Memory ( H8BCS0SIOBAR ) NAND _ CS1 _ N EBI2 _ALE EBI2 _CLE EBI2_OE_N EBI2_ WE_N NAND _ READY RESOUT_N SDRAM DATA [ 0 : 31 ] VREG _MSME_1.
- 116 - L GE Internal Use Only Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes 6. BL OCK DIAGRAM 71#F653#KZ#Eorfn#Gldjudp#=#UIbJVP.
- 117 - Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes L GE Internal Use Only 6. BL OCK DIAGRAM 81#F653#KZ#Eorfn#Gldjudp#=#Frqqhfwlylw|+EW2ZLIL2IP,.
- 118 - L GE Internal Use Only Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes 6. BL OCK DIAGRAM 81#F653#KZ#Eorfn#Gldjudp#=#Frqqhfwlylw|+EW2IP, E t .
- 119 - Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes L GE Internal Use Only 6. BL OCK DIAGRAM 91#F653#KZ#Eorfn#Gldjudp#=#Phpru| HYNIX MCP ( H8BCS.
- 120 - L GE Internal Use Only Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes 6. BL OCK DIAGRAM :1#F653#KZ#Eorfn#Gldjudp#=#Dxglr HSED_BIAS MIC1P MI.
- 121 - Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes L GE Internal Use Only 6. BL OCK DIAGRAM ;1#F653#KZ#Eorfn#Gldjudp#=#YLVXDO+#OFG#)#FDPHUD#, C.
- 122 - L GE Internal Use Only Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes.
- 123 - 7. CIRCUIT DIA GR AM L GE Internal Use Only Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes 850, 900,1800,1900MHz R109 ANT_FEED ANT_FEED RX_.
7. CIRCUIT DIA GR AM - 124 - L GE Internal Use Only Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes VBAT 19.
- 125 - 7. CIRCUIT DIA GR AM L GE Internal Use Only Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes VREG_MSME_1V8 12 11 10 9 8 7 6 5 4 3 2 1 GND RX TX VCHAR ON_SW VBAT PWR URXD UTXD 3G 2.
7. CIRCUIT DIA GR AM - 126 - L GE Internal Use Only Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes DDR_D[00] DDR_M_CLK_N NAND_BSY_N DDR_DQM[1] NAND.
- 127 - 7. CIRCUIT DIA GR AM L GE Internal Use Only Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes VBUS_LDO_4V9 I N D CHG_STS_N MUIC_IO_M MUIC_IO_P.
7. CIRCUIT DIA GR AM - 128 - L GE Internal Use Only Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes VREG_MSMP_2V6 GND HS_GND HS_R SPK_N SPK_P MUIC_A.
- 129 - L GE Internal Use Only Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes 7. CIRCUIT DIA GR AM 0 1 5 6 4 7 3 8 2 9 1 0 1 5 6 4 7 3 8 2 9 1 0 1 .
- 130 - L GE Internal Use Only Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes VREG_MSME_1V8 VREG_MSMP_2V6 26MHz A4 C4 E4 D4 K 2 3 _ C T R RTC_32K B.
- 131 - 7. CIRCUIT DIA GR AM L GE Internal Use Only Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes 15pF 15pF 15pF 15pF 25pF 25pF 25pF 25pF VREG_MSM.
7. CIRCUIT DIA GR AM - 132 - L GE Internal Use Only Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes VBAT MOTOR_POWER_N MSD_D[2] MSD_D[3] MSD_D[0] MSD_D[1] MSD_CMD 3-2-1-3_push_1.
- 133 - 7. CIRCUIT DIA GR AM L GE Internal Use Only Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes KB105 KB101 KB102 KB103 KB104 KB109 KB108 KB107 KB106 KB111 KB110 LD103 LD104 LD105 LD108 LD106 LD107 10 R107 R108 10 10 R105 R106 10 10 R109 R110 10 VA101 C102 0.
7. CIRCUIT DIA GR AM - 134 - L GE Internal Use Only Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes 2.
- 135 - 7. CIRCUIT DIA GR AM L GE Internal Use Only Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes 2 1 CN102 CN101 11 10 12 9 13 8 14 7 15 6 16 5 1.
- 136 - L GE Internal Use Only Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes.
- 137 - Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes L GE Internal Use Only 8. B G A P I N M AP 8.
- 138 - L GE Internal Use Only Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes 8. B G A P I N M AP H8BCS0SI0BAR-46M (MCP,NAND) – U300 (EUSY0347506.
- 139 - Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes L GE Internal Use Only 8. B G A P I N M AP BCM2070B2KUBXG (bluetooth) – U700 (EUSY0418701).
- 140 - L GE Internal Use Only Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes RT8963WSC (Multiplexer Mini/Micro USB Interface)– IC400 (EUSY0424801) 8.
- 141 - Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes L GE Internal Use Only 8. B G A P I N M AP WM9093 (Ultra Low Power Audio Subsystem)– IC500.
- 142 - L GE Internal Use Only Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes 8. B G A P I N M AP TEA5991(FM Tuner)– U701 (EUSY0385901).
- 143 - 9. PCB LA Y OUT L GE Internal Use Only Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes 28 27 54 5 1 D 6 0 1 5 1 KB809 KB836 KB811 KB820 KB81.
9. PCB LA Y OUT - 144 - L GE Internal Use Only Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes B 0 1 D F A 1 7 F E D C 1 1 0 2 T K L M N P Q E F G H.
- 145 - 9. PCB LA Y OUT L GE Internal Use Only Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes KB103 KB102 KB105 LD104 LD105 KB108 KB109 KB110 LD108.
9. PCB LA Y OUT - 146 - L GE Internal Use Only Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes 25 26 5 0 CN101 6 0 1 R R101 R102 1 0 1 A V 2 0 1 A V.
- 147 - 9. PCB LA Y OUT L GE Internal Use Only Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes C320_F_SLIDE_SPCY0246901_10_T OP 26 25 50 27 28 54 CN.
9. PCB LA Y OUT - 148 - L GE Internal Use Only Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes 1 1 0 2 0 1 1 0 1 S VB101 1 0 1 N C 2 0 1 N C C320_F_.
- 149 - Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes L GE Internal Use Only 10. RF CALIBR A TION 10. RF CALIBR A TION 10.1 Usage of T achy on for RF C alibration and T est 10.1.1 Prepar ation w ork for setting RF cable loss Proc edure 1.
- 150 - L GE Internal Use Only Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes 10. RF CALIBR A TION 10.1.2 Basic Setting of T achy on for RF C alibration & T est Proc edure 1. Click “ T achyon_xxx.
- 151 - Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes L GE Internal Use Only 10. RF CALIBR A TION 10.1.3 Log of RF Calibr ation and T est Con tents On Running, log window is cr eated in upper area.
- 152 - L GE Internal Use Only Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes 11. TEST AL ONE Phone Test Mode : LG-C320 1. Enter the Engineer Menu 2. Tap 1. Device Test 3. Tap 1. Auto ALL Test 11.1 Phone T est Mode 11.
- 153 - Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes L GE Internal Use Only 11. TEST AL ONE Phone Test Mode Scenario Item Order Description (1) Key Press, External Memory, and SIM card Test Start 1.
- 154 - L GE Internal Use Only Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes 11. TEST AL ONE wG{GtGz Item Order Description (3) Vibrator Test 1.Vibrator On 2.
- 155 - Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes L GE Internal Use Only 11. TEST AL ONE wG{GtGz Item Order Description (5) Camera Test 1. Camera Off 2.
- 156 - L GE Internal Use Only Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes.
- 157 - 12. EXPL ODED VIE W & REPLA CEMENT P ART LIST 12.1 EXPL ODED VIEW L GE Internal Use Only Copyright © 2010 L G Elec tronics. Inc. All right reserved.
- 158 - L GE Internal Use Only Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes.
- 159 - Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes L GE Internal Use Only 12. EXPL ODED VIEW & REPLACEMENT P ART LIST by SBOM standard on GCSC Level LocationNo.
- 160 - L GE Internal Use Only Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes 12. EXPL ODED VIEW & REPLACEMENT P ART LIST Level LocationNo.
- 161 - Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes L GE Internal Use Only 12. EXPL ODED VIEW & REPLACEMENT P ART LIST Level LocationNo.
- 162 - L GE Internal Use Only Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes 12. EXPL ODED VIEW & REPLACEMENT P ART LIST Level LocationNo.
- 163 - Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes L GE Internal Use Only 12. EXPL ODED VIEW & REPLACEMENT P ART LIST by SBOM standard on GCSC Level LocationNo. Description PartNumber Spec Remark 4 EBR070500 PCB Assembly,Flexible - EBR72655001 LGC320.
- 164 - L GE Internal Use Only Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes 12. EXPL ODED VIEW & REPLACEMENT P ART LIST Level LocationNo. Description PartNumber Spec Remark 7 CN103 Connector,BtoB ENBY0042601 GB042-54P-H10 54P 0.
- 165 - Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes L GE Internal Use Only 12. EXPL ODED VIEW & REPLACEMENT P ART LIST Level LocationNo. Description PartNumber Spec Remark 4 SAFB00 PCB Assembly, Main,Insert - SAFB0126901 LG-C320 BOOWA MAIN 1.
- 166 - L GE Internal Use Only Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes 12. EXPL ODED VIEW & REPLACEMENT P ART LIST Level LocationNo.
- 167 - Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes L GE Internal Use Only 12. EXPL ODED VIEW & REPLACEMENT P ART LIST Level LocationNo. Description PartNumber Spec Remark 6 C526 Capacitor,TA,Conformal ECTH0004807 TCM1A106M8R 10F 20% 10V 500mA -55TO+85C 15OHM - - SMD R/TP ROHM.
- 168 - L GE Internal Use Only Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes 12. EXPL ODED VIEW & REPLACEMENT P ART LIST Level LocationNo. Description PartNumber Spec Remark 6 VA508, VA509, VA601, VA602, VA603, VA604 Varistor SEVY0003801 EVLC18S02015 18V 0% 15F 1.
- 169 - Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes L GE Internal Use Only 12. EXPL ODED VIEW & REPLACEMENT P ART LIST Level LocationNo. Description PartNumber Spec Remark 6 J501 Jack,Phone ENJE0007601 KJA-PH-0-0176 1P 4P ANGLE R/TP 4mM BLACK 6P - KSD CO.
- 170 - L GE Internal Use Only Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes 12. EXPL ODED VIEW & REPLACEMENT P ART LIST Level LocationNo. Description PartNumber Spec Remark 6 R601,R602 Resistor,Chip ERHZ0000206 MCR01MZP5F10R0 10OHM 0.
- 171 - Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes L GE Internal Use Only 12. EXPL ODED VIEW & REPLACEMENT P ART LIST Level LocationNo.
- 172 - L GE Internal Use Only Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes 12. EXPL ODED VIEW & REPLACEMENT P ART LIST Level LocationNo. Description PartNumber Spec Remark 6 FL101 Filter,Separator,FEM SFAY0011101 D5008 - - - D5008,850.
- 173 - Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes L GE Internal Use Only 12. EXPL ODED VIEW & REPLACEMENT P ART LIST Level LocationNo.
- 174 - L GE Internal Use Only Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes 12. EXPL ODED VIEW & REPLACEMENT P ART LIST Level LocationNo.
- 175 - Copyright © 2010 L G Elec tronics. Inc. All right reserved. Only for training and service purposes L GE Internal Use Only 12. EXPL ODED VIEW & REPLACEMENT P ART LIST by SBOM standard on GCSC Level LocationNo. Description PartNumber Spec Remark 2 SBPL00 Mobile Phone Battery Li- Ion SBPL0098901 LGIP-430N-WW-LGC LGIP-430N-WW-LGC,3.
An important point after buying a device LG Electronics LG-C320 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought LG Electronics LG-C320 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data LG Electronics LG-C320 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, LG Electronics LG-C320 you will learn all the available features of the product, as well as information on its operation. The information that you get LG Electronics LG-C320 will certainly help you make a decision on the purchase.
If you already are a holder of LG Electronics LG-C320, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime LG Electronics LG-C320.
However, one of the most important roles played by the user manual is to help in solving problems with LG Electronics LG-C320. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device LG Electronics LG-C320 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center