Technics-SLEH570-cd-sm 电路图维修手册.pdf

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1、file:/C|/Documents%20and%20Settings/Administrator/Plocha/SL-EH570/s0000000000.htm Service Manual TOP NEXT AD0102032C2 Compact Disc Player G SL-EH570 Traverse Deck: RAE0152Z Mechanism series Colour (S).Silver Type Area (E).Europe. file:/C|/Documents%20and%20Settings/Administrator/Plocha/SL-EH570/s000

2、0000000.htm (1 of 2) 25.4.2003 20:50:06 RadioFans.CN 收音机爱好者资料库 file:/C|/Documents%20and%20Settings/Administrator/Plocha/SL-EH570/s0000000000.htm 2001 Matsushita Electric Industrial Co., Ltd. All rights reserved. Unauthorized copying and distribution is a violation of law. TOP NEXT file:/C|/Document

3、s%20and%20Settings/Administrator/Plocha/SL-EH570/s0000000000.htm (2 of 2) 25.4.2003 20:50:06 RadioFans.CN 收音机爱好者资料库 file:/C|/Documents%20and%20Settings/Administrator/Plocha/SL-EH570/s0100000000 x.htm 1 Note TOP PREVIOUS NEXT Refer to the service manual for Model No. SA-EH570 (Order No. AD0102030C2)

4、 for information on Accessories and Packaging. TOP PREVIOUS NEXT file:/C|/Documents%20and%20Settings/Administrator/Plocha/SL-EH570/s0100000000 x.htm 25.4.2003 20:50:39 RadioFans.CN 收音机爱好者资料库 file:/C|/Documents%20and%20Settings/Administrator/Plocha/SL-EH570/s0200000000 x.htm 2 Handling Precautions f

5、or Traverse Deck TOP PREVIOUS NEXT The laser diode in the traverse deck (optical pickup) may break down due to potential difference caused by static electricity of clothes or human body. So be careful of electrostatic breakdown during repair of the traverse deck (optical pickup). 2.1 Handling of tra

6、verse deck (optical pickup) 2.2 Grounding for electrostatic breakdown prevention 2.2.1 Human body grounding 2.2.2 Work table grounding TOP PREVIOUS NEXT file:/C|/Documents%20and%20Settings/Administrator/Plocha/SL-EH570/s0200000000 x.htm 25.4.2003 20:50:58 file:/C|/Documents%20and%20Settings/Administ

7、rator/Plocha/SL-EH570/s0201000000.htm 2.1 Handling of traverse deck (optical pickup) TOP PREVIOUS NEXT 1. Do not subject the traverse deck (optical pickup) to static electricity as it is extremely sensitive to electrical shock. 2. To protect the laser diode against electrostatic breakdown, short the

8、 flexible board (FFC board) with a clip or similar object. Refer to Fig. 2-1. 3. Take care not to apply excessive stress to the flexible board (FFC board). 4. Do not turn the variable resistor (laser power adjustment). It has already been adjusted. Refer to Fig. 2-1. Fig. 2-1. file:/C|/Documents%20a

9、nd%20Settings/Administrator/Plocha/SL-EH570/s0201000000.htm (1 of 2) 25.4.2003 20:51:15 file:/C|/Documents%20and%20Settings/Administrator/Plocha/SL-EH570/s0202000000.htm 2.2 Grounding for electrostatic breakdown prevention TOP PREVIOUS NEXT 2.2.1 Human body grounding 2.2.2 Work table grounding TOP P

10、REVIOUS NEXT file:/C|/Documents%20and%20Settings/Administrator/Plocha/SL-EH570/s0202000000.htm 25.4.2003 20:51:36 file:/C|/Documents%20and%20Settings/Administrator/Plocha/SL-EH570/s0202010000.htm 2.2.1 Human body grounding TOP PREVIOUS NEXT Use the anti-static wrist strap to discharge the static ele

11、ctricity from your body. Refer to Fig. 2-2. Fig. 2-2. TOP PREVIOUS NEXT file:/C|/Documents%20and%20Settings/Administrator/Plocha/SL-EH570/s0202010000.htm 25.4.2003 20:51:53 file:/C|/Documents%20and%20Settings/Administrator/Plocha/SL-EH570/s0202020000.htm 2.2.2 Work table grounding TOP PREVIOUS NEXT

12、Put a conductive material (sheet) or steel sheet on the area where the traverse deck (optical pickup) is placed, and ground the sheet. Refer to Fig. 2-3. Fig. 2-3. Caution: The static electricity of your clothes will not be grounded through the wrist strap. So take care not to let your clothes touch

13、 the traverse deck (optical pickup). TOP PREVIOUS NEXT file:/C|/Documents%20and%20Settings/Administrator/Plocha/SL-EH570/s0202020000.htm 25.4.2003 20:52:10 file:/C|/Documents%20and%20Settings/Administrator/Plocha/SL-EH570/s0300000000 x.htm 3 Precaution of Laser Diode TOP PREVIOUS NEXT TOP PREVIOUS N

14、EXT file:/C|/Documents%20and%20Settings/Administrator/Plocha/SL-EH570/s0300000000 x.htm 25.4.2003 20:52:28 file:/C|/Documents%20and%20Settings/Administrator/Plocha/SL-EH570/s0400000000 x.htm 4 Location of Controls TOP PREVIOUS NEXT TOP PREVIOUS NEXT file:/C|/Documents%20and%20Settings/Administrator/

15、Plocha/SL-EH570/s0400000000 x.htm 25.4.2003 20:52:47 file:/C|/Documents%20and%20Settings/Administrator/Plocha/SL-EH570/s0500000000 x.htm 5 Operation Checks and Component Replacement/ Procedures TOP PREVIOUS NEXT G This section describes procedures for checking the operation of the major printed circ

16、uit boards and replacing the main components. G For reassembly after operation checks or replacement, reverse the respective procedures. Special reassembly procedures are described only when required. / 5.1 Checking for the main P.C.B. 5.2 Checking for the CD servo P.C.B. 5.3 Replacement for the tra

17、verse deck assy 5.4 Replacement for the belt, loading motor assy and loading switch TOP PREVIOUS NEXT file:/C|/Documents%20and%20Settings/Administrator/Plocha/SL-EH570/s0500000000 x.htm 25.4.2003 20:53:43 file:/C|/Documents%20and%20Settings/Administrator/Plocha/SL-EH570/s0501000000.htm 5.1 Checking

18、for the main P.C.B. TOP PREVIOUS NEXT G Check the main P.C.B. as shown above. / TOP PREVIOUS NEXT file:/C|/Documents%20and%20Settings/Administrator/Plocha/SL-EH570/s0501000000.htm 25.4.2003 20:54:02 file:/C|/Documents%20and%20Settings/Administrator/Plocha/SL-EH570/s0502000000.htm 5.2 Checking for th

19、e CD servo P.C.B. TOP PREVIOUS NEXT G Follow the (Step 1) - (Step 3) of item 5.1. file:/C|/Documents%20and%20Settings/Administrator/Plocha/SL-EH570/s0502000000.htm (1 of 2) 25.4.2003 20:54:21 file:/C|/Documents%20and%20Settings/Administrator/Plocha/SL-EH570/s0502000000.htm G Check the CD servo P.C.B

20、. as shown below. TOP PREVIOUS NEXT file:/C|/Documents%20and%20Settings/Administrator/Plocha/SL-EH570/s0502000000.htm (2 of 2) 25.4.2003 20:54:21 file:/C|/Documents%20and%20Settings/Administrator/Plocha/SL-EH570/s0503000000.htm 5.3 Replacement for the traverse deck assy TOP PREVIOUS NEXT G Follow th

21、e (Step 1) - (Step 3) of item 5.1. G Follow the (Step 1) - (Step 5) of item 5.2. file:/C|/Documents%20and%20Settings/Administrator/Plocha/SL-EH570/s0503000000.htm (1 of 6) 25.4.2003 20:54:39 file:/C|/Documents%20and%20Settings/Administrator/Plocha/SL-EH570/s0503000000.htm file:/C|/Documents%20and%20

22、Settings/Administrator/Plocha/SL-EH570/s0503000000.htm (2 of 6) 25.4.2003 20:54:39 file:/C|/Documents%20and%20Settings/Administrator/Plocha/SL-EH570/s0503000000.htm file:/C|/Documents%20and%20Settings/Administrator/Plocha/SL-EH570/s0503000000.htm (3 of 6) 25.4.2003 20:54:39 file:/C|/Documents%20and%

23、20Settings/Administrator/Plocha/SL-EH570/s0503000000.htm file:/C|/Documents%20and%20Settings/Administrator/Plocha/SL-EH570/s0503000000.htm (4 of 6) 25.4.2003 20:54:39 file:/C|/Documents%20and%20Settings/Administrator/Plocha/SL-EH570/s0503000000.htm file:/C|/Documents%20and%20Settings/Administrator/P

24、locha/SL-EH570/s0503000000.htm (5 of 6) 25.4.2003 20:54:39 file:/C|/Documents%20and%20Settings/Administrator/Plocha/SL-EH570/s0503000000.htm TOP PREVIOUS NEXT file:/C|/Documents%20and%20Settings/Administrator/Plocha/SL-EH570/s0503000000.htm (6 of 6) 25.4.2003 20:54:39 file:/C|/Documents%20and%20Sett

25、ings/Administrator/Plocha/SL-EH570/s0504000000.htm 5.4 Replacement for the belt, loading motor assy and loading switch TOP PREVIOUS NEXT G Follow the (Step 1) - (Step 3) of item 5.1. G Follow the (Step 1) - (Step 5) of item 5.2. G Follow the (Step 1) - (Step 9) of item 5.3. file:/C|/Documents%20and%

26、20Settings/Administrator/Plocha/SL-EH570/s0504000000.htm (1 of 2) 25.4.2003 20:54:58 file:/C|/Documents%20and%20Settings/Administrator/Plocha/SL-EH570/s0504000000.htm TOP PREVIOUS NEXT file:/C|/Documents%20and%20Settings/Administrator/Plocha/SL-EH570/s0504000000.htm (2 of 2) 25.4.2003 20:54:58 file:

27、/C|/Documents%20and%20Settings/Administrator/Plocha/SL-EH570/s0600000000 x.htm 6 Error Code Display and Servo Adjustment Function TOP PREVIOUS NEXT This unit has an error code display function, so that if the unit operates incorrectly, the fault is displayed using an error code on the FL display of

28、the Tuner/Amplifier (SA-EH570). It also has a servo adjustment function for displayingthe status of servo system functions (Focus, Tracking, CLV servo) on the FL display of the Tuner/Amplifier. The system control IC and FL display are part of the Tuner/Amplifier so make sure the system has been conn

29、ected properly beforeusing these functions. Use these two functions for guidance during fault diagnosis and repair. Note: Check beforehand for scratching or soiling of the test disc (SZZP1054C), and soiling or other problems with the pickup lens. 6.1 Error code display procedure 6.1.1 Automatic adju

30、stment results 6.1.2 Checking the mechanism switches 6.2 Servo adjustment procedure 6.3 Error code based on troubleshooting TOP PREVIOUS NEXT file:/C|/Documents%20and%20Settings/Administrator/Plocha/SL-EH570/s0600000000 x.htm 25.4.2003 20:55:16 file:/C|/Documents%20and%20Settings/Administrator/Ploch

31、a/SL-EH570/s0601000000.htm 6.1 Error code display procedure TOP PREVIOUS NEXT 6.1.1 Automatic adjustment results 6.1.2 Checking the mechanism switches TOP PREVIOUS NEXT file:/C|/Documents%20and%20Settings/Administrator/Plocha/SL-EH570/s0601000000.htm 25.4.2003 20:55:51 file:/C|/Documents%20and%20Set

32、tings/Administrator/Plocha/SL-EH570/s0601010000.htm 6.1.1 Automatic adjustment results TOP PREVIOUS NEXT 1. Turn on the power. 2. Load the test disc (SZZP1054C). 3. Hold down the REPEAT button for at least 2 seconds, and then press the STOP button for at least 2 seconds while continuing to hold down

33、 the REPEAT button. 4. A servo section error code is displayed. Refer to Error code based on troubleshooting. Use this error code display as a guideline for finding the malfunction point in the servo circuitry. If the error code E00 is displayed, the unit isOK. TOP PREVIOUS NEXT file:/C|/Documents%2

34、0and%20Settings/Administrator/Plocha/SL-EH570/s0601010000.htm 25.4.2003 20:56:10 file:/C|/Documents%20and%20Settings/Administrator/Plocha/SL-EH570/s0601020000.htm 6.1.2 Checking the mechanism switches TOP PREVIOUS NEXT 1. After a servo section error code is displayed, press the F.SKIP button. 2. A m

35、echanism OK/NG error code is displayed. Refer to Table 6-1. This error code can be used diagnose whether the mechanism is OK or not. If there are multiple errors, these can be displayed successively by pressing the F.SKIP button. 3. Press the STOP button, then remove the disc and turn off the power.

36、 (The error code display mode is canceled.) Table 6-1. FL display Symptom Cause H15 When CD tray opens, it closes by itself.Tray open detect switch (S790) fault. H16 When CD tray closes, it opens by itself.Tray close detect switch (S791) fault. F15 Does not play even if the PLAY button is pressed.Pi

37、ckup rest position detect switch (S701) fault. F26 Disc not move even if the PLAY button is pressed. System control and servo processor IC (IC451, IC702) fault. TOP PREVIOUS NEXT file:/C|/Documents%20and%20Settings/Administrator/Plocha/SL-EH570/s0601020000.htm 25.4.2003 20:56:27 file:/C|/Documents%2

38、0and%20Settings/Administrator/Plocha/SL-EH570/s0602000000.htm 6.2 Servo adjustment procedure TOP PREVIOUS NEXT 1. Turn on the power. 2. Load the test disc (SZZP1054C). 3. Hold down the REPEAT button for at least 2 seconds, and then press the PAUSE button for at least 2 seconds while continuing to ho

39、ld down the REPEAT button. 4. Press the PLAY button, and play for 10 seconds. 5. Servo adjustment results are displayed. Refer to Fig. 6-2. For further information about servo adjustment results, refer to Fig. 6-3. Fig. 6-2. Fig. 6-3. file:/C|/Documents%20and%20Settings/Administrator/Plocha/SL-EH570

40、/s0602000000.htm (1 of 2) 25.4.2003 20:56:44 file:/C|/Documents%20and%20Settings/Administrator/Plocha/SL-EH570/s0602000000.htm 6. Remove the disc and turn off the power. TOP PREVIOUS NEXT file:/C|/Documents%20and%20Settings/Administrator/Plocha/SL-EH570/s0602000000.htm (2 of 2) 25.4.2003 20:56:44 fi

41、le:/C|/Documents%20and%20Settings/Administrator/Plocha/SL-EH570/s0603000000.htm 6.3 Error code based on troubleshooting TOP PREVIOUS NEXT G This unit is satisfactory if the error code is E00 and E02 . G Before testing, check that the test disc is free of scratches and optical pickup is clean. FL err

42、or code/display Symptom Probable cause Signal to check Normal voltage and waveform values Signal name Location PLAY STOP E01Focus and tracking offset adjustments not completed in the specified time period. Clocks X1 IN and X2 OUT, power supply VDD and reset/RST, all on IC702. MDATA, MCLK, MLD and SE

43、NSE signals to/from mechanism controller. MDATAIC702-8 pin 0.3 V0 V MCLKIC702-7 pin 2.9 V MLDIC702-9 pin 2.9 V /RSTIC702- 18 pin 2.9 V2.9 V X1 INIC702- 58 pin X2 OUTIC702- 59 pin E03, E05, E07, E09, E0B, E0D, E0F Disc play unstable. Scratches or contaminants on disc surface. Focus and Tracking servo

44、 circuit (check waveforms, voltages and part values.) Spindle driver circuit. Optical pickup. FEIC702- 32 pin 1.7 V file:/C|/Documents%20and%20Settings/Administrator/Plocha/SL-EH570/s0603000000.htm (1 of 3) 25.4.2003 20:57:01 file:/C|/Documents%20and%20Settings/Administrator/Plocha/SL-EH570/s0603000

45、000.htm TEIC702- 33 pin 1.7 V FODIC702- 28 pin 1.7 V1.7 V TRDIC702- 27 pin 1.7 V1.7 V /RFDETIC702- 38 pin 0 V3.3 V RFTJ7011.0 V STATIC702- 17 pin 3.3 V0 V E04, E06, E0C, E0E, Best Eye (PD balance) adjustment not completed in the specified time period. Scratches or contaminants on disc surface. Focus

46、 and Tracking servo circuit (check waveforms, voltages and part values.) Optical pickup. FBALIC702- 30 pin 1.7 V1.7 V RFIC701-8 pin 1.0 V FEIC702- 32 pin 1.7 V OFTIC702- 36 pin 0 V0 V file:/C|/Documents%20and%20Settings/Administrator/Plocha/SL-EH570/s0603000000.htm (2 of 3) 25.4.2003 20:57:01 file:/

47、C|/Documents%20and%20Settings/Administrator/Plocha/SL-EH570/s0603000000.htm E08, E0AFocus and Tracking gain adjustment not completed in specified time period. Scratches or contaminants on disc surface. Focus and Tracking servo circuit (check waveforms, voltages and part values.) Optical pickup. FEIC

48、702- 32 pin 1.7 V TEIC702- 33 pin 1.7 V OFTIC702- 36 pin 0 V0 V TOP PREVIOUS NEXT file:/C|/Documents%20and%20Settings/Administrator/Plocha/SL-EH570/s0603000000.htm (3 of 3) 25.4.2003 20:57:01 file:/C|/Documents%20and%20Settings/Administrator/Plocha/SL-EH570/s0700000000 x.htm 7 To Supply Power Source TOP PREVIOUS NEXT This unit is designed to operate on power supplied from system connected./When a component requires service, use the system connections to supply power source. /For system connections, refer to Fig.7-1. Fig. 7-1. TOP PREVIOUS NEXT file:/C|/Documents%20and%20Settings/Admin