Panasonic-SAAKX76P-cs-sm 电路图 维修手册.pdf

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1、 Panasonic Corporation 2013. All rights reserved. Unauthorized copying and distribution is a violation of law. PSG1303033CE CD Stereo System Model No.SA-AKX76PH SA-AKX76PN Product Color: (K).Black Type TABLE OF CONTENTS PAGEPAGE 1 Safety Precautions- 3 1.1. General Guidelines- 3 1.2. Before Use (For

2、 PH only)- 4 1.3. Before Repair and Adjustment- 4 1.4. Protection Circuitry- 4 1.5. Caution For Fuse Replacement- 4 1.6. Safety Parts Information- 5 2 Warning- 6 2.1. Prevention of Electrostatic Discharge (ESD) to Electrostatically Sensitive (ES) Devices- 6 2.2. Precaution of Laser Diode- 7 2.3. Ser

3、vice caution based on Legal restrictions- 8 2.4. Handling Precautions for Traverse Unit- 9 2.5. Grounding for electrostatic breakdown prevention -10 3 Service Navigation-11 3.1. Service Information- 11 4 Specifications- 13 5 General/Introduction- 14 5.1. Media Information- 14 6 Location of Controls

4、and Components- 15 6.1. Remote Control Key Button Operation - 15 6.2. Main Unit Key Button Operation- 16 7 Installation Instructions - 17 7.1. Speaker and A/C Connection- 17 8 Service Mode- 18 8.1. Cold-Start - 18 8.2. Doctor Mode Table- 19 8.3. Reliability Test Mode (CD Mechanism Unit)- 22 8.4. Sel

5、f-Diagnostic Mode - 23 8.5. Self-Diagnostic Error Code Table- 23 8.6. Sales Demonstration Lock Function - 24 Please refer to the original service manual for: ? ? CD Mechanism Unit , Order No. PSG1102001CE ? ? Speaker system SB-AKX76PN-K, Order No. PSG1303034CE RadioFans.CN 收音机爱 好者资料库 2 9 Troubleshoo

6、ting Guide-25 10 Disassembly and Assembly Instructions-26 10.1. Screw Types-26 10.2. Disassembly Flow Chart-27 10.3. Main Components and P.C.B. Locations -28 10.4. Disassembly of Top Cabinet-29 10.5. Disassembly of Front Panel Unit-30 10.6. Disassembly of Panel P.C.B., LED P.C.B. and Music Port P.C.

7、B.-31 10.7. Disassembly of Remote Sensor P.C.B.-33 10.8. Disassembly of USB P.C.B. -33 10.9. Disassembly of CD Lid-34 10.10. Disassembly of Rear Panel-34 10.11. Disassembly of Main P.C.B.-35 10.12. Disassembly of SMPS P.C.B. and Voltage Selector P.C.B.-37 10.13. Disassembly of CD Mechanism Unit-37 1

8、0.14. Disassembly of CD Interface P.C.B.-39 10.15. Disassembly of Fan Unit -39 11 Service Position-40 11.1. Checking of Panel P.C.B. -40 11.2. Checking of Main P.C.B. (Side A)-40 11.3. Checking of Main P.C.B. (Side B)-40 11.4. Checking of SMPS P.C.B.-41 12 Block Diagram -43 12.1. Servo X : NG (In ca

9、se that time out happens.) : Either one of FO AOC, TR AOC and FO coarse AGC is NG. : If the AGC is NG (ignore others). To cancel this mode, press 0 button on the remote control. To cancel this mode, press 0 button on the remote control. (Display 1) (Display 2) Version (Decimal) ROM Type Year Develop

10、 after 2 sec Checksum (Hex) 22 8.3.Reliability Test Mode (CD Mechanism Unit) Below is the process flow chart of the aging test for the CD Mechanism Unit . Fig. 1. Reliability Test (Loading) Fig. 2. Reliability Test (Traverse) Fig. 3. Reliability Test (Combination) OPEN Operation OPEN wait for 1 s CL

11、OSE Operation CLOSE wait for 4 s Count up First Track Access First Track Play 5 s Last Track Access Last Track Play 5 s Count up First Track Access Access Play 10 s Open Operation Open wait for 1 s CLOSE Operation Count up First Track Last Track Last Track Play 10 s 23 8.4.Self-Diagnostic Mode 8.5.S

12、elf-Diagnostic Error Code Table Self-Diagnostic Function (Refer Section 8.4. Self-Diagnostic Mode) provides information on any problems occurring for the unit and its respective components by displaying the error codes. These error code such as U*, H* and F* are stored in memory and held unless it i

13、s cleared. The error code is automatically display after entering into self-diagnostic mode. 8.5.1.Power Supply Error Code Table FL Display Key Operation Front Key Item Description Mode Name To enter into self diagnostic checking System will perform a check on any unusual/error code from the memory

14、To clear the stored in memory (EEPROM IC) Self Diagnostic Mode Error code information Delete error code Step 1: Select CD mode (Ensure no disc is inserted). Step 2: Press & hold button follow by on main unit for 2 seconds. Step 1: In self diagnostic mode, Press on main unit. To exit, press /I on mai

15、n unit or remote control. Step 1: In self diagnostic mode, Press 0 on remote control. To exit, press /I on main unit or remote control. Example: / Cold StartTo active cold start upon next AC power up when reset start is execute the next time. In self diagnostic mode: 1. Press 3 button on the remote

16、control. 24 8.5.2.CD Mechanism Error Code Table (CD Mechanism Unit) 8.6.Sales Demonstration Lock Function 8.6.1.Entering into Sales demonstration lock mode Here is the procedures to enter into the Sales demonstration lock mode. Step 1: Turn on the unit. Step 2: Select to any mode function. Step 3: P

17、ress and hold OPEN/CLOSE and CD keys for 5 sec or more. The display will show upon entering into this mode for 2 sec. Note: OPEN/CLOSE button is invalid and the main unit displays “LOCKED” while the lock function mode is entered. 8.6.2.Cancellation of Sales demonstration lock mode Step 1: Turn on th

18、e unit. Step 2: Select to any mode function. Step 3: Set volume to Vol 19. Step 4: Press and hold OPEN/CLOSE and CD keys for 5 sec or more. The display will show upon entering into this mode for 2 sec. Error CodeDiagnostic ContentsDescription of errorAutomatic FL DisplayRemarks CD H15CD Open Abnorma

19、lDuring operation POS_SW_R On fail to be detected with 4 sec. Error No. shall be clear by force or during cold start. Press on main unit for next error. CD H16CD Closing AbnormalDuring operation POS_SW_CEN On fail to be detected with 4 sec. Error No. shall be clear by force or during cold start. Pre

20、ss on main unit for next error. F26Communication between CD servo LSI and micro-p abnormal. During switch to CD func- tion, if SENSE = “L” within failsafe time of 20ms. Press on main unit for next error. 25 9Troubleshooting Guide Contents for this section is not available at time of issue 26 10 Disa

21、ssembly and Assembly Instructions Illustration is based on SA-AKX76PH-K. Caution Note: This section describes the disassembly and/or assembly procedures for all major printed circuit boards & main compo- nents for the unit. (You may refer to the section of “Main components and P.C.B Locations” as de

22、scribed in the service manual) Before carrying out the disassembly process, please ensure all the safety precautions & procedures are followed. During the disassembly and/or assembly process, please handle with care as there may be chassis components with sharp edges. Avoid touching heatsinks due to

23、 its high temperature after prolong use. (See caution as described below) During disassembly and assembly, please ensure proper service tools, equipments or jigs is being used. During replacement of component parts, please refer to the section of “Replacement Parts List” as described in the ser- vic

24、e manual. Select items from the following indexes when disassembly or replacement are required. Disassembly of Top Cabinet Disassembly of Front Panel Unit Disassembly of Panel P.C.B., LED P.C.B. and Music Port P.C.B. Disassembly of Remote Sensor P.C.B. Disassembly of USB P.C.B. Disassembly of CD Lid

25、 Disassembly of Rear Panel Disassembly of Main P.C.B. Disassembly of SMPS P.C.B. and Voltage Selector P.C.B. Disassembly of CD Mechanism Unit Disassembly of CD Interface P.C.B. Disassembly of Fan Unit 10.1.Screw Types 27 10.2.Disassembly Flow Chart 10.4.Top Cabinet 10.11. Main P.C.B. 10.10. Rear Pan

26、el10.5 Front Panel Unit 10.13. CD Mechanism Unit 10.14. CD Interface P.C.B. 10.12. SMPS P.C.B. and Voltage Selector P.C.B. 10.19. 10.6. Fan Unit 10.7. Panel P.C.B., LED P.C.B. and Music Port P.C.B. 10.8. Remote Sensor P.C.B. 10.9. USB P.C.B. CD Lid 28 10.3.Main Components and P.C.B. Locations 29 10.

27、4.Disassembly of Top Cabinet Step 1 Remove 2 screws on each side. Step 2 Remove 5 screws. Step 3 Slightly release both side of Top Cabinet outwards as arrow shown. Step 4 Slightly lift up the Top Cabinet in an outward direction as shown. Step 5 Remove the Top Cabinet. Caution: During assembling, ens

28、ure that the Top Cabinet catches are properly inserted into the Front Panel Unit. 30 10.5.Disassembly of Front Panel Unit Refer to “Disassembly of Top Cabinet”. Step 1 Detach 30P FFC at the connector (CN2004) on Main P.C.B. Step 2 Detach 5P Cable at the connector (CN2001) on Main P.C.B. Step 3 Remov

29、e 1 screw. Step 4 Release tab at the left side of the Front Panel Unit. Step 5 Release tab at the right side of the Front Panel Unit. Step 6 Release tabs at bottom. 31 Step 7 Detach the Front Panel Unit as arrow shown. 10.6.Disassembly of Panel P.C.B., LED P.C.B. and Music Port P.C.B. Refer to “Disa

30、ssembly of Top Cabinet”. Refer to “Disassembly of Front Panel Unit”. Step 1 Remove the Volume Knob. Step 2 Remove the Control Knob. Step 3 Remove 7 screws. Step 4 Release catches by following the sequences (1-9). 32 Step 5 Lift up the Panel P.C.B. and LED P.C.B. from the Front Panel Unit. Caution: D

31、uring assembling, ensure that the LED P.C.B. is properly insert to the Front Panel Unit. Caution: During assembling, ensure that the Panel P.C.B. is seated properly onto the locators & fully catched. Step 6 Remove 1 screw. Step 7 Release 1 catch. Step 8 Remove the Panel P.C.B., LED P.C.B. and Music

32、Port P.C.B. 33 Caution: During assembling, ensure that the Music Port P.C.B. is seated properly into the locators & fully catched. 10.7.Disassembly of Remote Sensor P.C.B. Refer to “Disassembly of Top Cabinet”. Refer to “Disassembly of Front Panel Unit”. Refer to “Disassembly of Panel P.C.B., LED P.

33、C.B. and Music Port P.C.B.”. Step 1 Remove the Remote Sensor P.C.B. Caution: During assembling, ensure that the Remote Sen- sor P.C.B. is properly inserted to the Panel P.C.B. 10.8.Disassembly of USB P.C.B. Refer to “Disassembly of Top Cabinet”. Refer to “Disassembly of Front Panel Unit”. Step 1 Rem

34、ove 1 screw. Step 2 Release 1 catch. Step 3 Remove the USB P.C.B. Caution: During assembling, ensure that the USB P.C.B. is seated properly into the locators & fully catched. 34 10.9.Disassembly of CD Lid Refer to “Disassembly of Top Cabinet”. Refer to “Disassembly of Front Panel Unit”. Step 1 Remov

35、e the spring in order of sequence (1) to (3). Caution: During assembling, ensure that the spring is assembly at correct position. Step 2 Push the bosses of the CD Lid inwards. Step 3 Remove the CD Lid. 10.10. Disassembly of Rear Panel Refer to “Disassembly of Top Cabinet”. Step 1 Remove 10 screws. S

36、tep 2 Detach the Voltage Selector P.C.B. Step 3 Release catch at the Fan Unit . Step 4 Remove the Fan Unit . 35 Step 5 Lift up to remove Inner Chassis Unit from the Rear Panel. Step 6 Release 2 tabs. Step 7 Remove Rear Panel. 10.11. Disassembly of Main P.C.B. Refer to “Disassembly of Top Cabinet”. R

37、efer to “Disassembly of Front panel Unit”. Step 1 Detach 2P Wire at the connector (CN2007) on Main P.C.B. Step 2 Detach 13P Cable at the connector (CN5802) on SMPS P.C.B. Step 3 Remove 4 screw. 36 Step 4 Remove 2 screw. Step 5 Lift up the Main P.C.B.from the slots at the Inner Chas- sis Unit accordi

38、ng to arrow shown. Step 6 Detach 10P FFC at the connector (FP8251) on the Main P.C.B. Step 7 Detach 24P FFC at the connector (FP8201) on the Main P.C.B. Step 8 Remove the Main P.C.B. 37 10.12. Disassembly of SMPS P.C.B. and Voltage Selector P.C.B. Refer to “Disassembly of Top Cabinet.”. Refer to “Di

39、sassembly of Front Panel Unit”. Step 1 Remove 2 screw. Step 2 Detach the Voltage Selector P.C.B. from the Rear Panel. Step 3 Remove 3 screws. Step 4 Detach 13P Cable Wire at the connector (CN5802) on SMPS P.C.B. Step 5 Release the P.C.B. Holder. Step 6 Remove the SMPS P.C.B. Caution: During assembli

40、ng, ensure that the SMPS P.C.B. is seated properly onto the locators. 10.13. Disassembly of CD Mecha- nism Unit Refer to “Disassembly of Top Cabinet”. Refer to “Disassembly of Front Panel Unit”. Refer to “Disassembly of Main P.C.B”. Step 1 Remove 4 screws. 38 Step 2 Detach the Voltage Selector P.C.B

41、. from the Rear Panel. Step 3 Remove 1 screw. Step 4 Release 2 catches. Step 5 Lift up and remove the Inner Chassis Unit. Caution: During assembling, ensure that Inner Chassis Unit is catched onto Rear Panel properly. Step 6 Remove 2 screws. Step 7 Remove the CD Mechanism Unit. 39 10.14. Disassembly

42、 of CD Interface P.C.B. Refer to “Disassembly of Top Cabinet”. Refer to “Disassembly of Front Panel Unit”. Refer to “Disassembly of Main P.C.B.”. Refer to “Disassembly of CD Mechanism Unit”. Step 1 Remove 3 screws. Step 2 Desolder pins of the motor (M7301). Step 3 Desolder pins of the motor (M7302).

43、 Step 4 Remove the CD Interface P.C.B. 10.15. Disassembly of Fan Unit Refer to “Disassembly of Top Cabinet”. Step 1 Remove 1 screw. Step 2 Detach 2P Wire at a connector (CN2007) on the Main P.C.B. Step 3 Release 1 catch. Step 4 Remove the Fan Unit. Caution: During assembling, ensure that the Fan Uni

44、t is catched onto the Rear Panel properly. 40 11 Service Position Note: For description of the disassembly procedures, see the Section 10. 11.1.Checking of Panel P.C.B. Step 1 Remove Top Cabinet. Step 2 Remove Front Panel Unit. Step 3 Positioned the Front panel Unit as shown. Step 4 Attach 30P FFC at a connector (CN2004) on