Instruction/ maintenance manual of the product DBTV2500 Durabrand
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SER VICE MANU AL Design and specifications are subject to change without notice. COLOR TELEVISION RECEIVER ORIGIN AL MFR’S VERSION B DBTV2500.
SER VICE MANUAL COLOR TELEVISION RECEIVER DBTV2500 D B MFR’S VERSION REVISION 1 MFR’S VERSION D Please file this revision with the original version.
Change of IC101 DIFFERENCES MFR'S VERSION B MFR'S VERSION D REF. NO. PART NO. DESCRIPTION PART NO. DESCRIPTION IC101 I56F07044A IC OEC7044A I56F07045A IC OEC7045A PCB010 A3I058G01A MAIN PCB ASS'Y TMX456A A3I058G01B MAIN PCB ASS'Y TMX456A SPEC.
6. AVOID AN X-RAY 1. KEEP THE NOTICES 5. TAKE CARE TO DEAL WITH THE CATHODE-RAY TUBE In the condition that an explosion-proof cathode- ray tube is set in this equipment, safety is secured against implosion. However, when removing it or serving from backward, it is dangerous to give a shock.
CONTENTS A2-1 A1-1 A1-1 A1-1 A2-1 A3-1~A3-4 B-1, B-2 C-1 C-1 C-1 D1-1~D2-1 D3-1 E-1, E-2 F-1~F-4 G-1, G-2 G-3, G-4 G-5, G-6 G-7, G-8 G-9, G-10 H-1, H-2 I-1 J1-1 J2-1, J2-2 SERVICING NOTICES ON CHECKING .................................................
GENERAL SPECIFICATIONS A3- 1 G - 1. O utlin e of the P r oduc t 25 inc h( 626 mm V ) : Me a s ur e d di a gona l ly C olor C RT 100 de gr e e de f l e c tion G- 2. B r oa dc a s ti ng Sys te m U S S y s t e m M G-3.C ol o r S y st e m NTS C PA L S EC A M or Monoc hr ome s igna l G- 4.
GENERAL SPECIFICATIONS A3- 2 G- 17. P r ote c t or: Po w er Fu s e G- 18. R e gul a ti on Saf ety UL CSA SA A SI CE SE V BS NF NEM KO FE M K O DEM KO IE C 6 5 SE MK O NZ HOM OLO SA BS CN S SI SI R NOM.
GENERAL SPECIFICATIONS A3- 3 G- 26. O S D L a ngua ge Eng Ge r Fr e Sp a It a Por Jp n OSD La ngua ge S e tting Eng Ge r Fr e Sp a It a Por Jp n N ot A p plica ble G - 2 7 . S p eak er Positio n Front Side Bottom S iz e 1. 5 x 2. 7 inc he s I mp. 4 ohm x 2 pc s P ow e r Ma x 075 + 0.
GENERAL SPECIFICATIONS A3- 4 G- 32. S wit c h F ront P o w er (T act ) C h an n el U p / R es et V olume U p/Se t U p Sy s tem Select C ha nne l D own/Ente r Vo l um e Do wn/ S e t Do wn M ain Po w er SW S ub P ow e r M e n u: Vo l UP + Vo l Do wn Rear AC / DC TV /CA T V Se le ctor De ga uss Main Po w er SW G- 33.
1. REMOVAL OF ANODE CAP Read the following NOTED items before starting work. After turning the power off there might still be a potential voltage that is very dangerous. When removing the Anode Cap, make sure to discharge the Anode Cap's potential voltage.
4. Insert one end of the Anode Support into the anode button, then the other as shown in Fig. 1-5 . 5. 6. Confirm that the Support is securely connected. Put on the Rubber Cap without moving any parts. DISASSEMBL Y INSTRUCTIONS CRT Support Fig. 1-5 2.
SERVICE MODE LIST This unit provided with the following SERVICE MODES so you can repair, examine and adjust easily. To enter the Service Mode, press both set key and remote control key for more than 1 second. Set Key Remocon Key Operations VOL. (-) MIN 0 Releasing of V-CHIP PASSWORD.
ELECTRICAL ADJUSTMENTS 1. BEFORE MAKING ELECTRICAL ADJUSTMENTS Read and perform these adjustments when repairing the circuits or replacing electrical parts or PCB assemblies. CAUTION • • • • Use an isolation transformer when performing any service on this chassis.
ELECTRICAL ADJUSTMENTS D1-2 Fig. 2-1 110% 0% 100% Fig. 2-2 B A TV 00 OSD 15 Fig. 2-3 2-6: HORIZONTAL PHASE 1. 2. 3. 4. Receive the center cross signal from the Pattern Generator. Using the remote control, set the brightness and contrast to normal position.
ELECTRICAL ADJUSTMENTS 3. 1. 2. 3. 1. 2. 3. 4. 5. 6. 7. 8. 3-2: PURITY NOTE Adjust after performing adjustments in section 3-1. 1. 2. 3. 4. 5. Receive the green raster pattern from color bar generator. Adjust the pair of purity magnets to center the color on the screen.
MAJOR COMPONENTS LOCA TION GUIDE FOCUS VOLUME SCREEN VOLUME FB401 D3-1 CP601 CRT PCB J801 MAIN PCB TU001 TP001 TP022 TP023 TP024.
BLOCK DIAGRAM 29 15 14 16 62 1 64 33 50 CF601 SAW FILTER 42 AGC IF TU001 11 1 CHROMA IC IC601 M61203BFP PUMP UP AMP + - 72 6 5 V-OUT IC IC401 LA78041 IC351 AN7523 SP351 Q801 RED OUT Q803 GREEN OUT Q802 BLUE OUT CRT 11 6 8 R G B Heater F 9 2 V. SYNC 25 RESET MICON IC IC101 OEC7044A 9 HV F S FB401 10 1 Q402 H.
SW105 SW104 SW103 SW102 TU001 D605 C003 TP001 R002 R001 D001 IC351_1 C353_1 C357_1 Q351 SW101 FH501 FH502 F501 RY101 C501 TH501 C133 D126 CP501 L501 C132_1 C503 R177 C440 D125 D501 D502 C504 D503 D504.
R101 R358 R354 R419 R406 R355 R006 R128 R126 R123 R102 R103 R122 R120 R116 R121 R104 R124 R105 R106 R107 C117 C116 R119 R111 R117 C114 R131 R113 R112 R110 IC101 R114 R115 R130 R129 C120 R606 C642 C618.
ABC D E F G H ABC D E F G H 2 1 3 4 5 6 7 8 2 1 3 4 5 6 7 8 TM101 R25-1127 W812 D104 MTZJ6.8B D001 HZ30-3L D101 MTZJ6.8B D103 MTZJ6.8B DESCRIBED IN PARTS LIST ONLY CRITICAL FOR SAFETY,USE ONES ARE SIN.
ABC D E F G H ABC D E F G H 2 1 3 4 5 6 7 8 2 1 3 4 5 6 7 8 Q606 2SD734 REG. Q603 2SD734 REG. D607 1SS133 D605 11E1-EIC D603 1SS133 D604 1SS133 D601 1SS133 X602 3.
ABC D E F G H ABC D E F G H 2 1 3 4 5 6 7 8 2 1 3 4 5 6 7 8 CAUTION: DIGITAL TRANSISTOR CC004 CC002 CC006 R428_1 8.2 2W R803 12K 2W R805 12K 2W R807 12K 2W R417 11K +-1% R409 6.2K +-1% R401 100K 1/4W +-1% R405 18K 1/4W +-1% R424 12K +-1% R408 18K +-1% R418 22K +-1% R448_1 3.
ABC D E F G H ABC D E F G H 2 1 3 4 5 6 7 8 2 1 3 4 5 6 7 8 PH TH501 PTAD14K2-3R0Q141 1 2 3 D608 RD15FB L501 9-000074 1 2 3 4 5 IC501 STR30110 POWER REG.IC 12345 C501 0.22 250V ECQUL C133 0.001 500V B C647 0.001 500V B D125 1SS133 2 1 L502 8R250009 DEGAUSS COIL RY101 ALKS321 1 2 3 4 FH502 EYF-52BC FH501 EYF-52BC F501 23706.
ABC D E F G H ABC D E F G H 2 1 3 4 5 6 7 8 2 1 3 4 5 6 7 8 SPEAKER SP351_2 SA04A05AWA IC351_1 AN7523 SOUND IC 1234567 89 CP351_1 TID-X02P-B2 1 2 Q351 2SC1815Y MUTE SW.
MICON/TUNER 6 1 0.5V 20 µ s/div 2 5 WAVEFORMS 0.5V 20 µ s/div 200mV 5ms/div 200mV 5ms/div 4 0.5V 2ms/div 200mV 20 µ s/div 7 9 200mV 20 µ s/div CHROMA 0.5V 5ms/div 10 11 1V 20 µ s/div 12 1V 20 µ s/div 1V 20 µ s/div 13 8 20V 20 µ s/div 3 200mV 20 µ s/div DEFLECTION/CRT 14 0.
16 2V 20 µ s/div 21 50V 20 µ s/div 200V 20 µ s/div 17 22 50V 20 µ s/div SOUND 10V 5ms/div 18 10V 5ms/div 19 50V 20 µ s/div 20 NOTE: The following waveforms were measured at the point of the corresponding balloon number in the schematic diagram. H-2 WAVEFORMS 0.
MECHANICAL EXPLODED VIEW I-1 112 204 204 204 204 204 110 111 204 203 203 FB401 TU001 MS501 102 ATC001 202 114 103 202 104 PCB010 (MAIN PCB) 101 203 115 205 116 L502 205 205 119 205 119 J801 115 PCB110.
MECHANICAL REPLACEMENT PARTS LIST REF. NO. PART NO. DESCRIPTION 101 8995034000 CORD CLIP UL CO. 102 --- HEAT SINK 103 --- HEAT SINK 104 --- METAL SPACER 105 741WUA0021 SPRING,EARTH 106 701APJA036 CABI.
ELECTRICAL REPLACEMENT PARTS LIST REF. NO. PART NO. DESCRIPTION REF. NO. PART NO. DESCRIPTION RESISTORS DIODES R135 R001T6272J RC 2.7K OHM 1/6W D604 D1VT001330 DIODE, SILICON 1SS133T-77 ! R177 R5W2CF122J R, CEMENT 1.
ELECTRICAL REPLACEMENT PARTS LIST REF. NO. PART NO. DESCRIPTION MISCELLANEOUS CP806 069W010010 CONNECTOR PCB SIDE 005P-2100 CP802A 067R005019 WIRE HOLDER 51048-0510 CP802B 067R005019 WIRE HOLDER 51048-0510 CP803A 067R104019 WIRE HOLDER 51052-0400 CP803B 067R104019 WIRE HOLDER 51052-0400 ! DY801 027M062505 DY 7M062505 ! F501 081PA6R302 FUSE 23706.
M3I0-62G A063519 SPEC.NO. O/R NO..
An important point after buying a device Durabrand DBTV2500 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Durabrand DBTV2500 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 Durabrand DBTV2500 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Durabrand DBTV2500 you will learn all the available features of the product, as well as information on its operation. The information that you get Durabrand DBTV2500 will certainly help you make a decision on the purchase.
If you already are a holder of Durabrand DBTV2500, 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 Durabrand DBTV2500.
However, one of the most important roles played by the user manual is to help in solving problems with Durabrand DBTV2500. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Durabrand DBTV2500 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
