Instruction/ maintenance manual of the product SJ-MR230DGK Panasonic
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ORDER No. A D0211148C3 Portable MD Recorder SJ-MR230DGH / SJ-MR230DGK Colours (S)...................Sil v er T y pe (R)...................Red T y pe [(GK) area onl y .
A udio S y stem : MiniDisc digital audio s y stem Laser : Semiconductor laser (=780 nm) Sampling frequenc y : 44.1 kHz Coding : A dapti v e Transform A coustic Coding ( A TR A C / A TR A C3) No.
LP4 : A bout 70 hour s A bout 21 hours Both together Norma l A bout 77 hour s A bout 35 hours LP2 : A bout 100 hour s A bout 50 hours LP4 : A bout 117 hour s A bout 62 hours Notes: - The pla y time ma y be less depending on the operating conditions. - Specifications are subject to charge w ithout notice.
(N2QCBD000012) For GH area - Speaker ass’ y .........................................................2pcs. (RFK A JMR250-S) - Cradle.....................................................................1pc. (RFE0114 A) - A C adaptor..................
3. Operating Instructions 4. Handling Precautions for Optical Magnetism Head Unit T he laser diode in the optical magnetism head unit ma y break do w n due to potential difference caused b y static electricit y of clothes or human bod y. So, be careful of electrostatic breakdo w n during repair of the optical magnetism head unit.
4.2. Grounding for electrostatic breakdo w n pre v ention 1. Human bod y grounding Use the anti-static w rist strap to discharge the static electricit y from y our bod y .
5. Operation Checks and Component Replacement Procedures - T his section describes procedures for checking the operation of the major printed circuit boards and replacing the main components. - For reassembl y after operation checks or replacement, re v erse the respecti v e procedures.
- Check the main P.C.B. ( A side) as sho w n belo w. 5.2. Replacement for the intermediate cabinet - Follo w the (Step1)-(Step3) of item 5.1..
5.3. Replacement for the open knob - Follo w the (Step1)-(Step3) of item 5.1. - Follo w the (Step1)-(Step4) of item 5.2..
5.4. Replacement for the tra v erse motor - Follo w the (Step1)-(Step3) of item 5.1..
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5.5. Replacement for the LCD - Follo w the (Step1)-(Step3) of item 5.1. - Follo w the (Step1)-(Step4) of item 5.2..
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5.6. Replacement for the lift motor - Follo w the (Step1)-(Step3) of item 5.1. - Follo w the (Step1)-(Step4) of item 5.2. - Follo w the (Step1) of item 5.
5.7. Replacement for the optical pickup - Follo w the (Step1)-(Step3) of item 5.1. - Follo w the (Step1)-(Step4) of item 5.2. - Follo w the (Step1)-(Step5) of item 5.
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6. Measurements and A djsutments Note: A fter replacing the main components (optical pickup or tra v erse motor, etc.) of mechanism unit block, change to the adjust mode, and then perform the “laser po w er adjustment”, “off-set auto- adjustment” and “pla y back-onl y disc/magneto-optical disc auto-adjustment”.
Note: For use of M D cartridge t y pe laser po w er meter, remo v e the intermediate cabinet before perform the laser po w er adjustment (as for the method of disassembl y , refer to “5. Operation checks and main component replacement procedures”.
*In the displa y of T 0E** ~ T FE** sho w n abo v e, y ou must adjust T 0E**, T 1E**, T 2E** and T 3E**. You must perform the adjustment b y obser v ing the order T 0E** T 1E** T 2E** T 3E**. 6.2.2. Laser Po w er A djustment A djust each laser po w er: read po w er for reading (pla y ) and w rite po w er for w riting (record).
1. Ha v e “ T 0E** ” indicated on displa y , and mo v e the optical pickup to the most inside (onl y w hen a MD cartridge t y pe laser po w er meter is used). 2. Set the laser po w er meter. [For use of stick t y pe laser po w er meter.] 2-1 Unco v er the laser po w er meter.
5. Perform the read po w er adjustment. Set the light po w er at 600 W ±10 % b y using VOL+, VOL- , EQ and PL A Y MODE ke y s of the remote controller. In the laser po w er adjustment, EQ and PL A Y MODE ke y s change e v er y 8 steps for VOL+ and VOL- ke y s change 1 step.
4. When it ends normall y , “0FOK” is displa y ed on LCD of remote control and a main part. It is set to “0FNG” at the time of abnormalities. 5. Press the PL A Y ke y of the remote controller (change the displa y of the LCD to “ T 1E** ” , off-set automatic adjustment w ill be finished.
LCD. If it is abnormall y , it changes to “00NG ”. 5. Press the PL A Y ke y (“00OK ” or “00NG ” changes to “ T 3E** ”, pla y back-onl y disc adjustment is finished.). Note: When “00NG” is displa y ed, check “7. T roubleshooting Guide” in order.
M ain unit’s key Check point Voltage (ON) Voltage (OFF) PL AY IC501 100pin 0V 2.2V S T OP IC501 100pin 1.76V 2.2V FOW IC501 99pin 0.66V 2.2V REV IC501 99pin 0.88V 2.2V HOLD OFF IC501 42pin 0V 2.2V REC IC501 100pin 0.22V 2.2V VOL+ IC501 99pin 1.1V 2.
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7.1.2. Confirmation of main unit and cradle.
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7.2. Flo w Chat of Each Part.
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8. Displa y of Self-Diagnostic Function T his model is equipped w ith a self-diagnosis function and sho w s, w hen necessar y , the follo w ing indication in the LCD section of the set.
“F17”--- T his indication appears w hen the Do w n s w itch fails to turn ON since the magnetic head fails to mo v e up/do w n normall y (Due to trouble of the magnetic head or trouble of the magnetic head up/do w n motor)or the magnetic head P.C.
S806 : Hold s w itch in “OFF” position. (HOLD) - Indicated v oltage v alues are the standard v alues for the unit measured b y the DC electronic circuit tester (high-impedance) w ith the chassis taken as standard. T herefore, there ma y exist some errors in the v oltage v alues, depending on theinternal impedance of the DC circuit tester.
14. Wiring Connection Diagram 15. Terminal Function of IC's 15.1. IC1 ( A N22010 A -VF) : RF A MP Pin No. M ark I/O Di v ision Function 1 LDO O Laser amp output terminal 2 LD IN I Laser amp re v erse input terminal 3 A PCPD I Photo diode light quantit y det.
Pin No. M ark I/O Di v ision Function 21 FF2 O F2 signal I/V con v erter output terminal 22 FF1 O F1 signal I/V con v erter output terminal 23,24 NC — Not used, open 25 A DIP O A DIP signal output t.
Pin No. M ark I/O Di v ision Function 47 D I M ain beam D signal input terminal 48 C I M ain beam C signal input terminal 15.2. IC101 (M66621BSG) : A T R A C ENCORDER/DECORDER, SERVO SIGN A L PROCESSOR Pin No.
Pin No. M ark I/O Di v ision Function 16 T VDP/ S T PO1 O T ra v erse (+) dri v e signal / stepper dri v e signal 1 output terminal 17 SBCK/ S T PO2 O Sub code Q clock for resistor / stepper dri v e s.
output terminal Pin No. M ark I/O Di v ision Function 38 SC T SY O A DIP s y nchronous noise output terminal 39 SSDR O S y stem control read data output terminal 40 SSDW I S y stem control w rite data.
Pin No. M ark I/O Di v ision Function 62 BB I Ser v o A /D con v erter input terminal 63 AA I Ser v o A /D con v erter input terminal 64 A VSS1 — GND terminal 65 PEF MS I EF M signal input terminal .
Pin No. M ark I/O Di v ision Function 85 DVDD2 I Po w er suppl y input terminal 86 R A D0 O A ddress for DR A M 0 output terminal 87 RD T3 I/O Data for DR A M 3 input / output terminal 88 IVDD1 — Po.
Pin No. M ark I/O Di v ision Function 1 IN 1R I H bridge 1 re v erse input terminal 2 IN 2F I H bridge 2 for w ard input terminal 3 IN 2R I H bridge 2 re v erse input terminal 4 S T A LL I Standb y in.
terminal Pin No. M ark I/O Di v ision Function 25 CSL2 I Slope capacitor connection terminal 26 FG O Speed pulse output terminal 27 BRK+ I Brake comparater+ input terminal (Connected to po w er suppl .
Pin No. M ark I/O Di v ision Function 48 C2M — Charge pump capacitor 2(-) connect terminal 49 C2P — Charge pump capacitor 2(+) connect terminal 50 C1M — Charge pump capacitor 1(-) connect termin.
Pin No. M ark I/O Di v ision Function 1 A VREFO I Reference v oltage input terminal for A /V con v erter 2 A VDD — Po w er suppl y terminal for A /V con v erter (+2.
Pin No. M ark I/O Di v ision Function 23 RE M _KEY_W A KE UP I Remote control ke y W A KE UP signal input terminal 24 DOC T OR I Doctor mode signal input terminal (Open) 25 M _REQ O NE T M D microcomp.
Pin No. M ark I/O Di v ision Function 42 HOLD_SW I HOLD s w itch input terminal (H : hold) 43 DCIN_DET I DC IN detection input terminal (H : DC IN) 44 DCIN_DE T2 I DC IN2 detection input terminal (H :.
Pin No. M ark I/O Di v ision Function 63 EVSS — GND terminal 64 EVDD — Po w er suppl y terminal (+ 2.2V) 65 HFON1 O HF module ON signal output terminal 66 M ONIOFF O 3 T monitor OFF output termina.
Pin No. M ark I/O Di v ision Function 84 OPENSW I Disc co v er open/close detection terminal (H : open) 85 W A KEUP I M icrocomputer w ake up signal input terminal 86 SC T SY I A DIP s y ncronize sign.
17. Replacement Parts List Notes: *Important safet y notice: Components identified b y mark ha v e special characteristics important for safet y. Funrthermore, special parts w hich ha v e purposes of fire-retardant (resistors), high-qualit y sound (capacitors), lo w -noise (resistors), etc.
Ref. No. Part No. Part Name & Description Pcs Remarks 1 RHD14080 SCREW 1 2 RDG0510 INTERMEDI A TE GE AR 1 3 RHD14078 SCREW 1 4 RHW11011 W A SHER 1 5 RMC0437 SPRING 1 6 BRL1 A 1CWD LIFT MOTOR 1 7 R.
Ref. No. Part No. Part Name & Description Pcs Remarks 44-2 K0L2LF000002 SWITCH(S501) 1 44-3 RHD14082 SCREW 1 44-4 RM A 1364-2 HOLDER A NGLE 1 44-5 RMX0156-1 STOPPER RUBBER 2 44-6 XQN14+B4FC SCREW .
C111 ECUE1H470JCQ 50V 47P 1 F1G1H470 A 422.
Ref. No. Part No. Part Name & Description Pcs Remarks C113 F1G1C103 A 044 16V 0.01U 1 C120 ECUEN A 104KBQ 10V 0.1U 1 F1G1 A 104 A 014 C121 ECUE1C223KBQ 16V 0.022U 1 F1G1C223 A 044 C122 F1G0J224 A 004 6.3V 0.22U 1 C123 ECUE1E681KBQ 25V 680P 1 C130 F1G1E472 A 059 25V 4700P 1 C140 F1G1C103 A 044 16V 0.
Ref. No. Part No. Part Name & Description Pcs Remarks C701 RCST0JY226RG 6.3V 22U 1 F3F0J2260002 C702 ECUEN A 104KBQ 10V 0.1U 1 F1G1 A 104 A 014 C704 F3E0G106 A 001 4V 10U 1 C711 ECUEN A 104KBQ 10V 0.1U 1 F1G1 A 104 A 014 C713,14 F5 A 421050001 4V 1U 2 C721 F5 A 421040002 4V 0.
Ref. No. Part No. Part Name & Description Pcs Remarks IC306 C0CB AA B00036 IC 1 IC307,08 B1KBB0000006 IC 2 IC401 C0GBD0000022 IC 1 IC501 C2DBKJ000062 IC 1 IC502 C3EBDG000039 IC 1 IC503 C0EBC000003.
Ref. No. Part No. Part Name & Description Pcs Remarks Q312 B1CHMC000001 TR A NSISTOR 1 Q313 B1CHHD000003 TR A NSISTOR 1 Q315 DTC144EETL TR A NSISTOR 1 B1GBCFNN0001 Q701 B1HFCF A 00005 TR A NSISTOR.
Ref. No. Part No. Part Name & Description Pcs Remarks R315 ERJ2GED513X 1/4W 51K 1 ERJ2RHD513X R317 ERJ6RSJR10V 1/10W 0.1 1 R318 ERJ2RKD474X 1/4W 470K 1 R320 D1H81044 A 024 100K 1 R321 ERJ2GEJ394X 1/4W 390K 1 ERJ2RMJ394X R322 ERJ2GEJ225X 1/4W 2.
Ref. No. Part No. Part Name & Description Pcs Remarks R905 ERJ2GEJ102X 1/4W 1K 1 ERJ2RMJ102X R911 D1H447320001 47K 1 R912 ERJ2GEJ6R8X 1/4W 6.8 1 RX111 D1H410420002 100K 1 RX112 ERJ2GE0R00X 1/4W 0 .
19. Packaging.
20. Schematic Diagram for printing w ith A4 H0211 T N/HH.
An important point after buying a device Panasonic SJ-MR230DGK (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Panasonic SJ-MR230DGK 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 Panasonic SJ-MR230DGK - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Panasonic SJ-MR230DGK you will learn all the available features of the product, as well as information on its operation. The information that you get Panasonic SJ-MR230DGK will certainly help you make a decision on the purchase.
If you already are a holder of Panasonic SJ-MR230DGK, 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 Panasonic SJ-MR230DGK.
However, one of the most important roles played by the user manual is to help in solving problems with Panasonic SJ-MR230DGK. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Panasonic SJ-MR230DGK 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
