Technics-SLEH-570-Service-Manual电路原理图.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 file:/C|/Documents%20and%20Settings/Administrator/Plocha/SL-EH570/s0200000000 x.htm 2 Handling Precautions for Traverse Deck TOP PRE

5、VIOUS 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 traverse deck (optical pick

6、up) 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/Administrator/Plocha/SL-EH570/s0

7、201000000.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 flexible board (FFC boa

8、rd) 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%20and%20Settings/Administra

9、tor/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 PREVIOUS NEXT file:/C|/Do

10、cuments%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 electricity from your body.

11、 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 Put a conductive materia

12、l (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 the traverse deck (opti

13、cal 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 NEXT file:/C|/Documents%2

14、0and%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/Plocha/SL-EH570/s0400000

15、000 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 circuit boards and replacing

16、 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 traverse deck assy 5.4 Repl

17、acement 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 for the main P.C.B. TOP

18、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 the CD servo P.C.B. TOP PR

19、EVIOUS 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. as shown below. TOP PR

20、EVIOUS 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 the (Step 1) - (Step 3) of

21、 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%20Settings/Administrator/P

22、locha/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%20Settings/Administrator

23、/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/Plocha/SL-EH570/s05030000

24、00.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%20Settings/Administrator/Ploch

25、a/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%20Settings/Administrator

26、/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:/C|/Documents%20and%20Se

27、ttings/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 the Tuner/Amplifier (SA-

28、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 connected properly beforeusi

29、ng 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 adjustment results 6.1.2 Che

30、cking 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/Plocha/SL-EH570/s0601000000.h

31、tm 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%20Settings/Administrator/Ploc

32、ha/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 the REPEAT button. 4. A

33、 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%20and%20Settings/Administ

34、rator/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 mechanism OK/NG error cod

35、e 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. (The error code display

36、 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.Pickup rest position detec

37、t 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%20and%20Settings/Administ

38、rator/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 hold down the REPEAT butto

39、n. 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/s0602000000.htm (1 of 2

40、) 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 file:/C|/Documents%20and%2

41、0Settings/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 error code/display Symptom

42、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 SENSE signals to/from mech

43、anism 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 circuit (check waveform

44、s, 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/s0603000000.htm TEIC702- 33 pin

45、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 and Tracking servo circ

46、uit (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:/C|/Documents%20and%20Set

47、tings/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. FEIC702- 32 pin 1.7 V TEIC70

48、2- 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/Administrator/Plocha/SL-EH570