Panasonic SJ-HD515 Service Manual
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Panasonic SJ-HD515 Service Manual

Panasonic SJ-HD515 Service Manual

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AD0003058C2
Mini Disc Deck
SJ-HD515
Mechanism Unit: MR3A
Colour
(S)..........Silver Type
Area
(E)..........Europe.
SPECIFICATIONS
1
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Summary of Contents for Panasonic SJ-HD515

  • Page 1 AD0003058C2 Mini Disc Deck SJ-HD515 Mechanism Unit: MR3A Colour (S)..Silver Type Area (E)..Europe. SPECIFICATIONS...

  • Page 2: Before Repair

    Diagram. 3. Before Repair This equipment (SJ-HD515), which is a component of the system, is supplied with power from the Amplifier (SE-HD515MD) through the Tuner (ST-HD515MD). When repairing this equipment or checking operation of the system, be sure to connect to the amplifier and tuner with it.
  • Page 3 caused by static electricity of clothes or human body. So be careful of electrostatic breakdown during repair of the MD unit (optical pickup). 4.1. Handling of MD Unit (optical pickup) 1. Do not subject the MD unit (optical pickup) to static electricity as it is extremely sensitive to electrical shock.

  • Page 4: Precaution Of Laser Diode

    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 MD unit (optical pickup). 5. Precaution of Laser Diode 6. Location of Controls 7. Operation Checks and Component Replacement / Procedures - This section describes procedures for checking the operation of the major printed circuit boards and replacing the main...
  • Page 5 components. - For reassembly after operation checks or replacement, reverse the respective procedures. Special reassembly procedures are described only when required. 7.1. Checking for the main P.C.B. - Check the main P.C.B. as shown below. 7.2. Checking for the MD servo P.C.B. 7.2.1.
  • Page 6 - Check the MD servo P.C.B. (A side) as shown below. 7.2.2. Checking for the MD servo P.C.B. (B side)
  • Page 7 7.3. Replacement for the magnetic head and optical pickup - Follow the (Step 1) - (Step 3) of item 7.1.
  • Page 11 7.4. Replacement for the belt and loading motor ass’y - Follow the (Step 1) - (Step 3) of item 7.1.
  • Page 13 7.5. Replacement for the traverse motor ass’y - Follow the (Step 1) - (Step 3) of item 7.1. - Follow the (Step 1) - (Step 11) of item 7.3.

  • Page 15: Self-Diagnostic Function

    8. Self-Diagnostic Function This unit is equipped with a Self-Diagnostic Function, so that if the unit operates incorrectly, the fault is displayed using an error code on the FL display of the Tuner (ST-HD515MD). The system control IC and FL display are part of the tuner so make sure the system has been connected properly before using this function.
  • Page 16 the respective error codes each time button is pressed. Fig. 8-1. Table 8-1. Error code Symptom Possible cause Interval till MD starts playing is Traverse det. switch (S8) is defective; Check and replace if necessary. too long. MD cannot be loaded. Confirm that the disc is not catching on anything.
  • Page 17 - Avoid exposure to the laser beam, especially when performing adjustments. This unit (SJ-HD515) is designed to operate on power supplied from the Amplifier (SE-HD515MD) through the Tuner (ST- HD515MD). When connecting the unit to other system components, do not connect to the Amplifier (SE-HD515MD) directly.
  • Page 18 Fig. 9-3. 9.2. Preparation for Play/Rec Signal Check Connect the oscilloscope or the speaker with built-in amplifier to the section between CP304- pin 12 (R ch OUT) and CP304-pin 17 (A.GND) as well as the section between CP304-pin 14 (L ch OUT) and CP304-pin 17 (A.GND) and check if the signals are outputting from this unit.
  • Page 19 2. Prepare for Play/Rec Signal Check. 3. Set the recorded MD in the unit. 4. Press the button and check if the MD play backs normally. (When the button is pressed, the PLAY LED turns green.) Refer to Fig. 9-4. 5.

  • Page 20: Schematic Diagram Notes

    8. Turn off the power, and remove the lead wire between the IC10- pin 67 (TP77) and GND (TP74). (Refer to Power Supply to This Unit alone.) Fig. 9-5. 10. Schematic Diagram Notes - This schematic diagram may be modified at any time with the development of new technology.
  • Page 21 Traverse det. switch S401: Eject switch ( EJECT) S402: CD edit recording switch (CD EDIT) S403: Enter switch (ENTER) S404: Edit switch (EDIT) S405: Stop switch ( S406: Pause switch ( S407: Playback switch ( S408: Record switch (REC) S409: R.Skip/search switch ( S410: F.Skip/search switch (...
  • Page 22 S412: One track/all tracks switch in ONE position (TRACK) VR1: Laser power adjustment VR - Indicated voltage values are the standard values for the unit measured by the DC electronic circuit tester (high-impedance) with the chassis taken as standard. Therefore, there may exist some errors in the voltage values, depending on the internal impedance of the DC circuit tester.
  • Page 23 : Playback signal line : Recording signal line 11. Schematic Diagram 12. Printed Circuit Board Diagram 13. Type Illustration of ICs, Transistors and Diodes 14. Wiring Connection Diagram 15. Block Diagram 16. Troubleshooting Guide 17. Terminal Function of ICs 17.1. IC1 (AN8772FHQ): RF Amp...
  • Page 24 Function Terminal Name 1 CENVD D signal detection input LD amp output terminal 3 APC PD Photo diode detection input LD IN LD amp input APC amp reference voltage input 6 TEMP IN Temperature sensor amp input TEMP Temperature sensor amp output ADIP ADIP FM signal output TOFS...
  • Page 25 Function Terminal Name RFAGC capacitor connect terminal EQ IN EQ input ARFO RF amp output 36 SVREF Reference signal input VREF Reference voltage output RF 1 signal input RF 2 signal input F 1 signal input F 2 signal input 42 CLPF1 APP correction CPF capacitor connect terminal...
  • Page 26 Function Terminal Name VO3+ Focus coil drive output VO2- Traverse motor drive output VO2+ Traverse motor drive output VO1- Spindle motor drive output VO1+ Spindle motor drive output 19 PGND1 GND terminal 20 PV Power supply terminal 21 1/2PV 1/2PV output terminal 1 (Connected to GND via capacitor)
  • Page 27 Function Terminal Name 14 ASGAIN Main beam amp gain adjustment output 15 ABGAIN APP adjustment output 16 AV Power supply terminal 17 AV GND terminal Focus drive signal output Tracking drive signal output Traverse motor drive signal output Spindle motor drive signal output 22 SPON Drive IC spindle ON signal...
  • Page 28 Function Terminal Name 53 SSDW MSP/MDA, I/F write data input 54 SSDR MSP/MDA, I/F read data output 55 MDISY Leader synchronous signal output 56 SCTSY ADIP synchronous noise output 57 SGSYNC O Frame synchronous signal output 58 DV Power supply terminal 59 IV Power supply terminal for I/O 60 DV...
  • Page 29 Function Terminal Name Reserved (Not used, connected to GND) 82 EXSYSCK - External system clock input (Not used, connected to GND) 83 DV Power supply terminal Crystal oscillator (f=16.9344 MHz) 86 VD GND terminal 87 RFDAT RF serial data output 88 RFCK RF serial clock output 89 NRFLD...
  • Page 30 Function Terminal Name DAC reset signal output (L: reset) DE emphasis signal output (L: DE emphasis) MUTE Muting signal output (Not used, open) 4 AD RST AD reset signal output (L: reset) RF amp standby control signal STBY output Power supply control output Reset signal output LOAD1 Loading motor drive 1 output...
  • Page 31 / REQ Function Terminal Name Drive signal output for LED OUT1 drive (H: ON) OUT2 OUT3 30 TEST02 Test terminal (Not used, open) Power supply terminal 2(3V) OSC1 Crystal oscillator (f=10.02 MHz) OSC2 GND terminal Not used, connected to GND Not used, open GND terminal 38 TEST03...
  • Page 32 Function Terminal Name 53 SELAD MSP/MDA, I/F address select output (H: address) 54 SS CLK MSP/MDA, I/F clock output 55 SS DR MSP/MDA, I/F read data input 56 SS DW MSP/MDA, I/F write data output 57 LCD CK LCD clock test signal output (Connected to power supply via resistor) 58 ADRS /...

  • Page 33: Measurements And Adjustments

    Function Terminal Name 77 SBP / Spindle management retry test RETRY signal output (Not used, open) 78 SRV / Servo retry test signal output RETRY (Not used, open) 79 ARDSKIP Address skip test signal output (Not used, open) 80 SPMWE SPM test signal output (Not used, open) 17.5.
  • Page 34 especially careful not to look laser beam directly or to touch the laser beam when adjusting the unit and checking its operation. 18.1. Laser Power Adjustment Adjust each laser power: read power for reading (play) and write power for writing (record). 18.1.1.
  • Page 35 damage the laser diode. Recommended driver: VESSEL 9000 1.8-30 / (Ceramic driver) Caution on optical pickup: - The optical pickup and the magnetic head are structured precisely; therefore, they are very fragile. Be careful not to touch them with the edge of laser power meter. - The sensor of the laser power meter is a very fine part.
  • Page 36 6. Press the CD EDIT button and confirm that the reading of the laser power meter is within the specified range. If it is not within the specified range, adjust by turning VR1. Refer to Fig. 18-3. Fig. 18-3. Specified range (read power): 600 W or lower Caution: Proceeding on to the subsequent adjustment procedure with the...

  • Page 37: Replacement Parts List

    11. Press the STOP button and exit the adjustment mode. 12. Turn off the power and remove the lead wire between the IC10- pin 67 (TP77) and GND (TP74). This ends the adjustment mode. 19. Replacement Parts List Notes: - Important safety notice: Components identified by mark have special characteristics important for safety.
  • Page 38 Ref. No. Part No. Part Name & Description Pcs Remarks RHD30007-S SCREW RKM0364-2S1 CABINET RYQ0274-S SIDE PANEL UNIT(L) XTBS26+8J SCREW RKA0114-K FOOT RKA0083-K CUSHION RGG0148B-S FRONT PANEL RYQ0275-S SIDE PANEL UNIT(R) XTBS26+8J SCREW REP2683F-S LED PCB XTBS3+10JFZ1 SCREW RGK0977-2S MD LID RGL0386-Q LENS1 RGL0387-Q...
  • Page 39 Ref. No. Part No. Part Name & Description Pcs Remarks C7,C8 ECUVNA224KBV 10V 0.22U ECUVNE223KBV 25V 0.022U ECUV0J474KBV 6.3V 0.47U ECUV1C393KBV 16V 0.039U ECUV1H102KBV 50V 1000P ECST0GY106RR 4V 10U ECUV1H181KV 50V 180P ECUV1H332KBV 50V 3300P ECUV1H562KBV 50V 5600P ECUVNC104ZFV 16V 0.1U ECST0GY106RR 4V 10U ECUV1H822KBV 50V 8200P ECUV1H102KBV 50V 1000P...
  • Page 40 Ref. No. Part No. Part Name & Description Pcs Remarks C92,93 ECUVNC104ZFV 16V 0.1U ECST0GY475RR 4V 4.7U ECUVNC104ZFV 16V 0.1U C96,97 ECST0GY475RR 4V 4.7U ECUVNC104ZFV 16V 0.1U ECUV1H102KBV 50V 1000P C100 ECUVNC104ZFV 16V 0.1U C101 ECST0GY106RR 4V 10U C102 ECUVNC104ZFV 16V 0.1U C103 ECST0GY106RR 4V 10U C106...
  • Page 41 Ref. No. Part No. Part Name & Description Pcs Remarks RJS2A4526T CONNECTOR(26P) RJS2A4830T CONNECTOR(30P) RJU113W10M CONNECTOR(10P) RJS2A4506T CONNECTOR(6P) RJT113W10M CONNECTOR(10P) CP302 RJS10T6ZA CONNECTOR(10P) CP303 RJS2A3330 CONNECTOR(30P) CP304 RJT065A19 SYSTEM CONNECTOR(19P) D5,D6 SC80209TE12R DIODE MA728TX DIODE D301 MA4033M DIODE D302,03 MA719TA DIODE D401 SML79420C...
  • Page 42 Ref. No. Part No. Part Name & Description Pcs Remarks PCB3 REP2775AB-S PANEL P.C.B [RTL] PCB4 REP2575A SW P.C.B. [RTL] PCB5 REP2761A-T SERVO P.C.B. [RTL] 2SB1295-6-TB TRANSISTOR DTC114YETL TRANSISTOR 2SB1462STX TRANSISTOR 2SB1295-6-TB TRANSISTOR DTC114YETL TRANSISTOR 2SJ278MYTR TRANSISTOR 2SK1764KYTR TRANSISTOR 2SB1121ST-TD TRANSISTOR Q301 UN5214TX...
  • Page 43 Ref. No. Part No. Part Name & Description Pcs Remarks ERJ3GEYJ222V 1/16W 1 ERJ3GEYJ223V 1/16W 22K ERJ3GEYJ333V 1/16W 33K ERJ3GEYJ222V 1/16W 1 ERJ3GEYJ473V 1/16W 47K ERJ3GEYJ102V 1/16W 1K ERJ3GEYJ332V 1/16W 3.3K ERJ3GEYJ223V 1/16W 22K ERJ3GEYJ682V 1/16W 6.8K ERJ3GEYJ683V 1/16W 68K ERJ3GEYJ332V 1/16W 3.3K R61,62 ERJ3GEYJ223V 1/16W 22K...
  • Page 44 Ref. No. Part No. Part Name & Description Pcs Remarks R306 ERJ6GEYJ181V 1/19W 180 R309 ERJ6GEYJ181V 1/19W 180 R315 ERJ6GEYJ182V 1/10W 1.8K R316 ERDS2FJ151 1/4W 150 R317,18 ERJ6GEYJ154V 1/10W 150K R319,20 ERJ6GEYJ681V 1/10W 680 R321,22 ERDS2FJ100 1/4W 10 R323,24 ERJ6GEYJ391V 1/10W 390 R326 ERJ6GEYJ472V 1/10W 4.7K R327...

  • Page 45: Cabinet Parts Location

    Ref. No. Part No. Part Name & Description Pcs Remarks EVM3YSX50B14 VR,LASER POWER ADJ. RSXY10M0M02T OSCILLATOR RSXC16M9S03T OSCILLATOR 20. Cabinet Parts Location 21. MD Mechanism Parts Location...
  • Page 46 F000306000YM/KH...