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Panasonic SJ-MR230DGH, Service Manual, Page: 24 / 65

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Panasonic SJ-MR230DGH Service Manual Download Page 24

Main unit’s key

Check point

Voltage (ON)

Voltage (OFF)

PLAY

IC501 100pin

0V

2.2V

STOP

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

2.2V

VOL-

IC501 99pin

1.32V

2.2V

MARK MODE

IC501 99pin

0V

2.2V

MODE

IC501 99pin

0.22V

2.2V

EQ

IC501 99pin

0.44V

2.2V

7. “Checking the main unit’s key” is finished. Remove the battery 

when you exit from this mode.

Note:
Refer to “12. Printed Circuit Board Diagram” for the test points.

7. Troubleshooting Guide

7.1. Overall Flow Chart

7.1.1. Confirmation of main unit and remote control

Summary of Contents for SJ-MR230DGH

Page 1: ...ORDER No AD0211148C3 Portable MD Recorder SJ MR230DGH SJ MR230DGK Colours S Silver Type R Red Type GK area only A Blue Type SPECIFICATIONS Specifications ...

Page 2: ...ne Jack 3 0 mW 3 0 mW 32 Speakers Cradle 0 9 mW 0 9 mW 8 Speakers impedance 8 Power supply Rechargeable battery DC 1 2V included rechargeable battery Battery DC 1 5V One LR6 AA UM 3 battery AC adaptor DC 4 5V included AC adaptor Dimensions WxHxD Cabinet dimensions 78 2x71 6x17 9 mm incl projecting parts 80 4x74 1x17 9 mm Weight 121 g with battery 94 g without battery Play time When used in hold mo...

Page 3: ...t and dimensions are approximate 2002 Matsushita Electric Industrial Co Ltd All rights reserved Unauthorized copying and distribution is a violation of law 1 Accessories Rechargeable battery ass y 1pc RFKFFAZ01EM1 Rechargeable batt case 1pc RFA0475 Q External battery case 1pc RFA1537 S2 Carrying case 1pc RFC0069 H Stereo earphones 1pc L0BAB0000174 Connection cable 1pc K2KA39B00001 Clip type headph...

Page 4: ...012 For GH area Speaker ass y 2pcs RFKAJMR250 S Cradle 1pc RFE0114A AC adaptor 1pc RFEA413H W For GK area Speaker ass y 2pcs RFKAMR230GKS Cradle 1pc RFE0114B AC adaptor 1pc RFEA413T 1W 2 Precation of Laser Diode ...

Page 5: ... an extremely high precision construction and must not be subjected to impact excessive vibration or other types of rough handling 2 In order to prevent static electricity damage to the laser diode use a short pin or similar tool to short the optical pickup s flexible circuit boards after they have been disconnected from the main circuit board as shown in Fig 1 3 Handle the flexible circuit boards...

Page 6: ... shown in Fig 3 2 Work table grounding Put a conductive material sheet or steel sheet on the area where the optical magnetism head unit is placed and ground the sheet as shown in Fig 4 Caution The static electricity of your clothes will not be grounded through the wrist strap So take care not to let your clothes touch the optical magnetism head unit Fig 3 Fig 4 ...

Page 7: ...the main components For reassembly after operation checks or replacement reverse the respective procedures Special reassembly procedures are described only when required After replacing the main components optical pickup or traverse motor etc of mechanism unit block change to the adjust mode and then perform the ROM RAM auto adjustment 5 1 Checking for the main P C B ...

Page 8: ... Check the main P C B A side as shown below 5 2 Replacement for the intermediate cabinet Follow the Step1 Step3 of item 5 1 ...

Page 9: ...5 3 Replacement for the open knob Follow the Step1 Step3 of item 5 1 Follow the Step1 Step4 of item 5 2 ...

Page 10: ...5 4 Replacement for the traverse motor Follow the Step1 Step3 of item 5 1 ...

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Page 12: ...5 5 Replacement for the LCD Follow the Step1 Step3 of item 5 1 Follow the Step1 Step4 of item 5 2 ...

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Page 14: ...5 6 Replacement for the lift motor Follow the Step1 Step3 of item 5 1 Follow the Step1 Step4 of item 5 2 Follow the Step1 of item 5 5 ...

Page 15: ...5 7 Replacement for the optical pickup Follow the Step1 Step3 of item 5 1 Follow the Step1 Step4 of item 5 2 Follow the Step1 Step5 of item 5 4 Follow the Step1 of item 5 5 ...

Page 16: ......

Page 17: ...ustment off set auto adjustment and playback onlydisc magneto optical disc auto adjustment 6 1 Instruments to prepare 1 Playback only disc Test disc RFKV0006 2 Commercially available recordable disc fully recorded with music magneto optical disc 3 Laser power meter LE8010 or compatible meter 4 Remote controller part No N2QCBD000012 or N2QCBD000002 is attached to SJ MJ75 SJ MJ75 is GH area only ...

Page 18: ...c auto adjustment 6 2 1 Enter the adjustment mode 1 Set the battery and connect the remote controller 2 Turn off the power and switch main unit s HOLD switch off 3 Press the buttons of the remote controller in order from 1 to 4 as shown in Fig 5 Fig 5 4 When the adjustment mode is activated T0E will be displayed on the LCD of remote controller and unit After T0E is displayed select the desired adj...

Page 19: ... The sensor of the laser power meter is a very fine part Be careful not to touch it to the optical pickup lens Do not loosen or remove the magnetic head installing screw The focus point of the laser reaches to 356 F Therefore avoid adjusting using laser power for a long time because the sensor of the laser power meter may be burned Do not allow the write power to even momentarily reach or exceed 6...

Page 20: ... 2 Locate the sensor of the laser power meter right over above the optical pickup horizontally at a level of the disc position as shown in Fig 7 For use of MD cartridge type laser power meter 2 1 Set the laser power meter and close the disc cover fix it with tape as not to open as shown in Fig 8 Fig 6 Fig 7 Fig 8 3 Press the PLAY key of the remote controller T0E changes to LD of the LCD 4 Press th...

Page 21: ... the voltage between TP406 and TP407 is 85mA or higher it is conceivable that theoptical pickup is defective Specified range light power 5 7mW Caution Do not allow the write power to even momentarily reach or exceed 6 mW Doing so will result in damage to the optical pickup 8 Press the key of the remote controller RLDA changes to LP on the LDC At this time the data is written to EEPROM 9 Press the ...

Page 22: ...vention erase situation 3 Press the PLAY key of the remote controller T2E changes to 0AADJ on the LCD adjustment is started 4 If it has been finished normally 0ADDJ changes to 0AOK on LCD If it is abnormally it changes to 0ANG 5 Press the PLAY key 0AOK or 0ANG changes to T2E magneto optical disc adjusment is finished Note When 0ANG is displayed check 7 Troubleshooting Guide in order 6 2 5 Playback...

Page 23: ...s the buttons of the remote controller in order from 4 to 1 as shown in Fig 5 3 When entering the main unit s key check mode E KEX will be displayed on the LCD of main unit and remote controller If it is not displayed perform the procedures written above again 4 Confirm the display of LCD by pressing any keys on the main unit There is no order to press the keys Mian unit s keys Letters on LCD PLAY...

Page 24: ...n 0 22V 2 2V VOL IC501 99pin 1 1V 2 2V VOL IC501 99pin 1 32V 2 2V MARK MODE IC501 99pin 0V 2 2V MODE IC501 99pin 0 22V 2 2V EQ IC501 99pin 0 44V 2 2V 7 Checking the main unit s key is finished Remove the battery when you exit from this mode Note Refer to 12 Printed Circuit Board Diagram for the test points 7 Troubleshooting Guide 7 1 Overall Flow Chart 7 1 1 Confirmation of main unit and remote co...

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Page 26: ...7 1 2 Confirmation of main unit and cradle ...

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Page 28: ...7 2 Flow Chat of Each Part ...

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Page 36: ...8 Display of Self Diagnostic Function This model is equipped with a self diagnosis function and shows when necessary the following indication in the LCD section of the set ...

Page 37: ...form Laser power adjustment Off set automatic adjustment Playback only disc auto adjustment and Magneto optical disc auto adjustment after exchangingeither EEPROM IC IC502 or the system control IC IC501 Please refer to 6 Measurements and Adjustment about the adjustment method 10 Schematic Diagram Notes 10 1 Schemtic Diagram Notes This schematic diagram may be modified at any time with the developm...

Page 38: ...ality sound capacitors low noise resistors etc are used When replacing any of components be sure to use only manufacture s specified parts shown in theparts list Caution IC and LSI are sensitive to static electricity Secondary trouble can be prevented by taking care during repair Cover the parts boxes made of plastics with aluminum foil Ground the soldering iron Put a conductive mat on the work ta...

Page 39: ... connection input terminal Connected to GND through capacitor 9 OUT RF O EFM signal output terminal 10 NC Not used open 11 PEAK O EFM bright side det output terminal 12 GND GND terminal 13 BOTM O EFM dark side det output terminal 14 CEA I 3T envelope det capacitor connection terminal Connected to power supply through capacitor 15 MON3T O AS 3TMON signal output terminal 16 CC O C signal dark side d...

Page 40: ... terminal 33 CLV2 I ADIP BPF select signal input terminal 34 LDON I ACP circuit control signal input terminal 35 NRFSTBY I Standby control signal input terminal 36 TEMP O Temperature sensor amp output terminal 37 TEMP IN I Temperature sensor amp input terminal 38 F1 I F1 signal input terminal 39 F2 I F2 signal input terminal 40 A I Main beam A signal input terminal 41 B I Main beam B signal input ...

Page 41: ...w reflection setting signal output terminal 5 CLV2 O High speed select signal output terminal 6 REFM O EFM signal output terminal 7 SPDM O Spindle drive signal output terminal 8 SPDP O Spindle drive signal output terminal 9 FODM O Focus drive signal output terminal 10 FODP O Focus drive signal output terminal 11 TRDM O Tracking drive signal output terminal 12 TRDP O Tracking drive signal output te...

Page 42: ...put terminal Connected to GND 23 DATA FG I CD data FG input terminal 24 BCK I CD bit clock input terminal 25 LRCK I CD word clock input terminal 26 MONI4 O External ADC DAC clock output terminal 384FS 27 SDAR I Audio data input terminal 28 SDAP O Audio data output terminal Not used open 29 SWS O Word clock output terminal 30 SCL O Bit clock output terminal 31 RX2 I Digital audio interface 2 input ...

Page 43: ...erminal Not used open 46 NRST I Hardware reset signal input terminal 47 PWMVSS GND terminal 48 ADACR O Audio Rch output terminal 49 ADACL O Audio Lch output terminal 50 PWMVDD Power supply terminal 51 AVSS0 GND terminal 52 PEAK I Servo A D converter input terminal 53 BOTM I Servo A D converter input terminal 54 OSC I Servo A D converter input terminal 55 MON3T I Servo A D converter input terminal ...

Page 44: ...t terminal 71 AVDD1 Power supply terminal 72 MONI0 O Monitor 0 output terminal Not used open 73 RAD11 O Address for DRAM 11 output terminal Not used open 74 RAD10 O Address for DRAM 10 output terminal 75 RAD9 O Address for DRAM 9 output terminal 76 RAD8 O Address for DRAM 8 output terminal 77 RAD7 O Address for DRAM 7 output terminal 78 RAD6 O Address for DRAM 6 output terminal 79 DVSS2 Connected ...

Page 45: ... NRAS O Load address strobe for DRAM signal output terminal 93 NCAS O Calam address strobe for DRAM signal output terminal 94 NWE O Write enable signal for DRAM output terminal 95 TS2 I Test input terminal Not used connected to GND 96 DVSS0 GND terminal 97 XO O Crystal oscillator output terminal F 16 9344MHz 98 XI I Crystal oscillator input terminal F 16 9344MHz 99 IVDD0 Power supply for I O pad 1...

Page 46: ...1 SP VM2 I Half bridge input terminal 12 SP W OUT O Spindle motor coil W output terminal 13 SP PG2 GND terminal 14 PWVM I Power supply terminal 15 PWOUT O Hlaf bridge 1 output terminal Not used open 16 PWPG GND terminal 17 PWIN1 Half bridge 1 input terminal 18 SP U IN I Roter position detect comparater U input terminal 19 SP V IN I Roter position detect comparater V input terminal 20 SPWIN I Roter...

Page 47: ...4 BEMFU O Step detect comparater U output terminal 35 BEMFV O Step detect comparater V output terminal 36 BEMFW O Step detect comparater W output terminal 37 SLCOM I Step motor coil center input terminal 38 SLPG2 GND terminal 39 SLWOUT O Stepping motor W output terminal 40 SLVM2 I Power supply terminal 41 SLVOUT O Stepping motor V output terminal 42 SLPG1 O Stepping motor V output terminal Connect...

Page 48: ...NC Not used open 54 H2 PG2 GND terminal 55 H2 R OUT O H bridge 2 reverse output terminal 56 H2 VM I Power supply terminal 57 H2 F OUT O H bridge 2 forward output terminal 58 H2 PG1 GND terminal 59 H1 PG2 GND terminal 60 H1 R OUT O H bridge 1 reverse output terminal 61 H1 VM I Power supply terminal 62 H1 F OUT O H bridge 1 forward output terminal 63 H1 PG1 GND terminal 64 IN 1F I H bridge 1 forward...

Page 49: ...9 REM_DATA O Remote control LCD driver data output terminal 10 P32 SCK1 Not used open 11 VDD Power supply terminal 2 2V 12 VSS GND terminal 13 X1 I Main clock input terminal f 10 0MHz 14 X2 O Main clock output terminal f 10 0MHz 15 RESET I RESET input terminal 16 XT1 Sub clock input terminal Not used connected to GND 17 XT2 Sub clock output terminal Not used open 18 VSSBU Not used connected to GND...

Page 50: ...gh resistor 28 SP_CNT O Cradle control signal output terminal 29 P99 A9 TXD1 Not used open 30 SSDR I MSP MDA I F reading data input terminal 31 SSDW O MSP MDA I F writing data output terminal 32 SSCLK O MSP MDA I F clock output terminal 33 LSI_STAT I Test terminal Open 34 LCD_DATA O Unit LCD driver data output terminal 35 LCD_CK O Unit LCD driver clock output terminal 36 EVSS GND terminal 37 EVDD ...

Page 51: ...E O Charge select output terminal H charge 51 EL_ON I O EL lighting control input output terminal L lighting 52 EE_P_CS O EEPROM IC502 chip select output terminal 53 EE_P_CK O EEPROM IC502 clock output terminal 54EE_P_DATAO O EEPROM IC502 data output terminal 55 EE_P_DATAI I EEPROM IC502 data input terminal 56 AKM_CDTI O ADC PGA I F data output terminal 57 AKM_CSN O ADC PGA I F chip select output ...

Page 52: ...terminal 73 NRFSTBY O RF amp stand by output terminal L stand by 74 MSPRST O MSP reset signal output terminal L reset 75 MUTE_A O Analog mute A signal output terminal 76 USB_SELECT2 O USB connection MD LSI power select terminal 77 M_DATA_I I NET MD I F data input terminal Connected to GND through resistor 78 M_DATA_O O NET MD I F data output terminal Not used open 79 M_CLK_O O NET MD I F clock out...

Page 53: ...ection terminal 92 USBIN I USB connection terminal 93 ONDO I Temperature sensor input terminal 94 BATT1 I Battery voltage detection terminal 1 95 REM_KEY I Remote control key input terminal 96 P_KEY3 I Key pat input terminal 3 97 P_KEY2 I Key pat input terminal 2 98 P_KEY1 I Key pat input terminal 1 99 H_KEY2 I Unit key input terminal 2 100 H_KEY1 I Unit key input terminal 1 16 Caution in Use of R...

Page 54: ...e Refer to caution statements ACHTUNG Die lasereinheit nicht zerlegen Die lasereinheit darf nur gegen einc vom hersteller spezifizierte einheit ausgetauscht werden Capacity values are in microfarads uF unless specified otherwise P Pico farads pF F Farads F Resistance values are in ohms unless specified otherwise 1K 1 000 OHM 1M 1 000K OHM The marking RTL indicates that the Retention Time is limite...

Page 55: ...ERAITON BUTTON 1 27 RHQ0083 S SCREW 5 28 RJB2640A OPERATION FPC 1 29 RXM0077 LINK UNIT 1 30 RMZ0644 INSULATION SHEET 1 32 RYF0647A A DISC COVER ASS Y 1 GHA 32 RYF0647A S DISC COVER ASS Y 1 GHS 32 RYF0647B A DISC COVER ASS Y 1 GKA 32 RYF0647B R DISC COVER ASS Y 1 GKR 32 RYF0647B S DISC COVER ASS Y 1 GKS 32 1 RGV0286 S HOLD KNOB 1 32 2 RGV0303 S REC KNOB 1 32 3 RMA1587 REC LEVER 1 32 4 RMQ1145 REC K...

Page 56: ...FEA413H W AC ADAPTER 1 G4C4CAD00002 GH A9 RFEA413T 1W AC ADAPTER 1 G4C4CAJ00010 GK A11 K2KA39B00001 CONNECTION CABLE 1 A12 K7CXJCA00004 OPTICAL FIBER CABLE 1 A13 L0BAE0000026 CLIP TYPE HEADPHONES 1 A13 1 RFX3558 EAR PAD 2 A14 RQCB1205 1 SERVICE CENTER LIST 1 GKA GKR GKS C1 F1G1H221A416 50V 220P 1 C2 ECUVNA154KBV 10V 0 15U 1 F1H1A154A028 C3 ECUVNC104ZFN 16V 0 1U 1 F1J1C104A081 C4 F1G1E472A059 25V 4...

Page 57: ...C111 ECUE1H470JCQ 50V 47P 1 F1G1H470A422 ...

Page 58: ...06A013 6 3V 10U 1 C308 ECUENA104KBQ 10V 0 1U 1 F1G1A104A014 C310 ECUENA104KBQ 10V 0 1U 1 F1G1A104A014 C312 ECUENA104KBQ 10V 0 1U 1 F1G1A104A014 C313 F1G1C103A044 16V 0 01U 1 C316 F1J0J106A013 6 3V 10U 1 C317 F1J0J4750016 6 3V 4 7U 1 C318 ECUENA104KBQ 10V 0 1U 1 F1G1A104A014 C401 F1J0J4750016 6 3V 4 7U 1 C402 ECUENA104KBQ 10V 0 1U 1 F1G1A104A014 C403 ECJ1VB0J105K 6 3V 1U 1 C404 F5A421040002 4V 0 1U...

Page 59: ...CUENA104KBQ 10V 0 1U 1 F1G1A104A014 C911 ECUENA104KBQ 10V 0 1U 1 F1G1A104A014 C912 F1J0J4750016 6 3V 4 7U 1 C914 ECJ0EC1H030C 50V 3P 1 C915 ECUENA473KBQ 10V 0 047U 1 F1G1A473A014 CN1 K1MN21B00045 CONNECTOR 21P 1 CN2 K1MN06B00069 CONNECTOR 6P 1 CN3 K1MN04B00034 CONNECTOR 4P 1 CN403 04 K1MN04B00034 CONNECTOR 4P 2 CN501 K1MN10B00064 CONNECTOR 10P 1 CN502 K1MN06B00114 CONNECTOR 6P 1 CN901 K1MN10B00064...

Page 60: ...01 RLQP100MT W COIL 1 G1C100M00016 L701 03 RLBV601V W COIL 3 J0JCC0000059 L720 22 RLBV601V W COIL 3 J0JCC0000059 P1 RPK1869 PACKING CASE 1 GHA P1 RPK1868 PACKING CASE 1 GHS P1 RPK1871 PACKING CASE 1 GKA P1 RPK1872 PACKING CASE 1 GKR P1 RPK1870 PACKING CASE 1 GKS P2 RPQ1486 PAD 1 GH P2 RPQ1488 PAD 1 GK P3 RPQ1489 PAD 1 P4 RPQ1487 PAD 1 PCB1 REP3036A M REC HEAD P C B 1 RTL PCB2 REP3418B M MAIN P C B...

Page 61: ...J105 1 4W 1M 1 D0GA105JA001 R102 ERJ2GEJ221 1 4W 220 1 R110 D1H84704A024 47 1 R120 ERJ2GEJ123 1 4W 12K 1 R121 D1H433320002 33K 1 R122 ERJ2GE0R00X 1 4W 0 1 D0YAR0000003 R123 ERJ2GEJ221 1 4W 220 1 R130 ERJ2GEJ222X 1 4W 2 2K 1 ERJ2RMJ222X R201 ERJ2GEJ221 1 4W 220 1 R202 ERJ2GEJ471X 1 4W 470 1 ERJ2RMJ471X R203 D1BA2702A007 27K 1 R204 D1H410320002 10K 1 R205 ERJ2GEJ104 1 4W 100K 1 R206 D1H410320002 10K...

Page 62: ...223X R510 ERJ2GEJ334X 1 4W 330K 1 ERJ2RMJ334X R511 D1H82244A024 220K 1 R512 D1H81034A024 10K 1 R514 15 ERJ2GEJ122 1 4W 1 2K 2 R516 ERJ2GEJ102X 1 4W 1K 1 ERJ2RMJ102X R601 ERJ2GEJ4R7X 1 4W 4 7 1 ERJ2RMJ4R7X R701 ERJ2GEJ101 1 4W 100 1 R702 ERJ2GEJ224 1 4W 220K 1 R703 D1H410420002 100K 1 R704 ERJ2GEJ334X 1 4W 330K 1 ERJ2RMJ334X R705 ERJ2GEJ473X 1 4W 47K 1 ERJ2RMJ473X R706 D1H418220001 1 8K 1 R707 D1H4...

Page 63: ...18 ERJ2GE0R00X 1 4W 0 2 D0YAR0000003 S1 ABC1111P SW HEAD 1 K0L1BA000050 S801 RSG0051 P SW PLAY 1 S802 ABC1112P SW REC 1 K0L1BA000051 S803 05 RSG0051 P SW STOP FF FR 3 S806 07 EVQP7L01K SW VOL 2 S808 K0D112A00114 SW HOLD 1 TH40 D4CC11030009 THERMISTORS 1 TH901 D4CC11030009 THERMISTORS 1 X101 H0J169500011 OSCILLATOR 1 X501 H2D100500004 OSCILLATOR 1 Z301 RJH9209 1 TERMINAL 1 K4BC02E00005 18 Cabinet P...

Page 64: ...19 Packaging ...

Page 65: ...20 Schematic Diagram for printing with A4 H0211 TN HH ...

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