Panasonic-SAAKX12P-cs-sm 电路图 维修手册.pdf

《Panasonic-SAAKX12P-cs-sm 电路图 维修手册.pdf》由会员分享，可在线阅读，更多相关《Panasonic-SAAKX12P-cs-sm 电路图 维修手册.pdf（110页珍藏版）》请在收音机爱好者资料库上搜索。

1、 Panasonic Corporation 2011. All rights reserved. Unauthorized copying and distribution is a violation of law. PSG1102024CE CD Stereo System Model No.SA-AKX12PH SA-AKX12PN 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)- 3 1.3. Caution For Fuse Replacement- 3 1.4. Before Repair and Adjustment- 4 1.5. Protection Circuitry- 4 1.6. Safety Parts Information- 5 2 Warning- 6 2.1. Prevention of Electrostatic Discharge (ESD) to Electrostatic Sensitive (ES) Devices - 6 2.2. Precaution of Laser Diode- 7 2.3. Servic

3、e caution based on Legal restrictions- 8 2.4. Handling Precautions for Traverse Unit- 9 3 Service Navigation-11 3.1. Service Information- 11 4 Specifications- 12 5 Location of Controls and Components- 13 5.1. Main Unit Key Button Operation- 13 5.2. Remote Control Key Button Operation - 14 5.3. Media

4、 Information- 15 6 Self-Diagnostic and Special Mode Setting - 16 6.1. Cold-Start - 16 6.2. Doctor Mode Table- 17 6.3. Reliability Test Mode (CD Mechanism Unit (BRS1C)- 20 6.4. Self-Diagnostic Mode - 21 6.5. Self-Diagnostic Error Code Table- 21 6.6. Sales Demonstration Lock Function - 22 Please refer

5、 to the original service manual for: ? ? CD Mechanism Unit (BRS1C), Order No. PSG1102001CE ? ? Speaker system SB-AKX12PN-K, Order No. PSG1102026CE RadioFans.CN 收音机爱 好者资料库 2 7 Troubleshooting Guide-23 7.1. Troubleshooting Guide for F61 and/or F76-23 7.2. Part Location -24 7.3. D-Amp IC Operation X: N

6、G (In case that time out happens.) : Either one of FO AOC, TR AOC and FO coarse AGC is NG. : If the AGC is NG (ignore others). 2.To cancel, press 0 on remote control. 2.To cancel, press 0 on remote control. Version (Decimal)Checksum (Hex) 20 6.3.Reliability Test Mode (CD Mechanism Unit (BRS1C) Below

7、 is the process flow chart of the aging test for the CD Mechanism Unit (BRS1C). Fig. 1. Reliability Test (Loading) Fig. 2. Reliability Test (Traverse) Fig. 3. Reliability Test (Combination) OPEN Operation OPEN wait fot 1 s CLOSE Operation CLOSE wait for 4s Count up First Track Access First Track Pla

8、y 5 s Last Track Access Last Track Play 5 s Count up First Track Access First Track Play 10 s Last Track Access Last Track Play 10 s Open Operation Open wait for 1 s CLOSE Operation Count up 21 6.4.Self-Diagnostic Mode 6.5.Self-Diagnostic Error Code Table Self-Diagnostic Function (Refer Section 6.4.

9、 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 is cleared. The error code is automatically display after entering into self-

10、diagnostic mode. 6.5.1.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 To clear the stored in memory (EEPROM IC) Self Diagnostic Mode Error code in

11、formation Delete error code Step 1: Select CD mode (Ensure no disc is inserted). Step 2: Press & hold follow by / on main unit for 2 seconds. Step 1: In self diagnostic mode, Press on main unit. To exit, press /I on main unit or remote control. Step 1: In self diagnostic mode, Press 0 on remote cont

12、rol. To exit, press /I on main unit or remote control. Example: 22 6.5.2.CD Mechanism Error Code Table (CD Mechanism Unit (BRS1C) 6.6.Sales Demonstration Lock Function 6.6.1.Entering into sales Demo Mode Here is the procedures to enter into Sales Demonstration Lock. Step 1: Turn on the unit. Step 2:

13、 Select to any mode function, press and hold OPEN/CLOSE key and follow by / key within 0.5 sec. Step 3: Hold both OPEN/CLOSE and / keys for 5 sec. Step 4: The display will show upon entering into this mode. Note: OPEN/CLOSE button is invalid and the main unit displays “LOCKED” while the lock functio

14、n mode is entered. 6.6.2.Cancellation Step 1: To cancel only can be triggered in CD Mode and Volume 19. Step 2: Press and hold OPEN/CLOSE key and follow by / key. It must be pressed within 0.5 sec. Step 3: Hold both OPEN/CLOSE and / keys for 5 sec. Step 4: The display will show after exit from this

15、mode. Error CodeDiagnostic ContentsDescription of errorAutomatic FL DisplayRemarks CD H15CD Open AbnormalDuring 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 P

16、OS_SW_CEN 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. 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

17、 error. 23 7Troubleshooting Guide 7.1.Troubleshooting Guide for F61 and/or F76 This section illustrates the checking procedures when upon detecting the error of “F61” and/or “F76” after power up of the unit. It is for purpose of troubleshooting and checking in SMPS & Main P.C.B. Refer to Section 7.2

18、.1 Fig. 1. SMPS P.C.B. Refer to Section 7.2.2 Fig. 2. Main P.C.B. Refer to Section 7.2.1 Fig. 1. SMPS P.C.B. Refer to Section 7.2.1 Fig. 1. SMPS P.C.B. 5Switching Regulator 5IC5701 Faulty. 6Switching Regulator IC, IC5799 6IC5799 Faulty. Set can ON1Speaker Output1Faulty speaker unit, Loose connection

19、, Short.Refer to Section 7.2.2 Fig. 2. Main P.C.B. then F61 2D-AMP circuit2aD-AMP IC, IC5902 defective. (DC voltage of +/-30V detected at speaker output) Set can ON 1Transformer T57011aShort circuit between Pin 14 and Pin 15. then F76 1bShort circuit between Pin 15 and Pin 16. 1cShort circuit betwee

20、n Pin 16 and Pin 17. 2DC-DC Circuit2a 2bVoltage Regulator IC (IC2010) & Switching Regulator IC (IC2011 ) faulty. 3Photocoupler3PC5720 solder crack, PC5720Dry joint, short circuit, open circuit. 1Rectifier Diode D58011aImproper contact between D5801 to Heatsink. Rectifier Diode D5802Improper contact

21、between D5802 to Heatsink. 2Thermistor TH58601bSet trigger temperature protection. Set can ON working normally for some time then F76 SymptomRemarks Set cannot ON1AC Cord1AC Cord Faulty, Loose connection.Refer to Section 7.2.1 Fig. 1. SMPS P.C.B. 22 3Fuse, F13Fuse, F1 Open. 4Photocoupler4PC5702/PC57

22、99 solder crack. PC5702, PC5799Dry joint, short circuit, open circuit. Check cable wire connection between cable wire ZJ2002 (At Main P.C.B) & connector CN5802 (At SMPS P.C.B) Possible Fault(s)Checking Items AC Inlet, P5701P5701 solder crack, dry joint. IC, IC5701 24 7.2.Part Location 7.2.1.SMPS P.C

23、.B. Fig. 1 SMPS P.C.B. Thermistor: TH5860 Photocoupler: PC5720 AC Inlet: P5701 Fuse: F1 Photocoupler: PC5702, PC5799 Switching Regulator IC: IC5701 Switching Regulator IC: IC5799 Transformer: T5701 Rectifier Diode D5801, D5802 Connector: CN5802 25 7.2.2.Main P.C.B. Fig. 2 Main P.C.B. Cable wire: ZJ2

24、002 Voltage Regulator IC: IC2010 Switching Regulator IC: IC2011 Audio Digital Amp IC: IC5902 26 7.3.D-Amp IC Operation & Control 27 1170 1250 H 350 1260 1450 L 301 1460 1540 H 350 1550 1710 L 301 Table 4: F_HOP Control during 10 kHz Step Note: During activating, the 3 control pins namely MUTE_F, MUT

25、E_A and MODE_DA must be used to cover the “Pop” sound cause by F-HOP switching. 28 8Disassembly and Assembly Instructions Illustration is based on SA-AKX12PH-K. Caution Note: This section describes the disassembly and/or assembly procedures for all major printed circuit boards & main compo- nents fo

26、r the unit. (You may refer to the section of “Main components and P.C.B Locations” as described 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 c

27、are as there may be chassis components with sharp edges. Avoid touching heatsinks due to 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 par

28、ts, please refer to the section of “Replacement Parts List” as described in the ser- vice manual. Select items from the following indexes when disassembly or replacement are required. Disassembly of Top Cabinet Disassembly of Tuner P.C.B. Disassembly of Front Panel Unit Disassembly of Panel P.C.B. D

29、isassembly of Remote Sensor P.C.B. Disassembly of LCD P.C.B. Disassembly of USB P.C.B. Disassembly of CD Lid Disassembly of Main P.C.B. Replacement of Voltage Regulator IC (IC2010) Replacement of Audio Digital Amp IC (IC5902) Disassembly of SMPS P.C.B. Replacement of Switching Regulator IC (IC5701)

30、Replacement of Rectifier Diode (D5702) Replacement of Rectifier Diode (D5801) Replacement of Rectifier Diode (D5802) Replacement of Rectifier Diode (D5803) Disassembly of CD Mechanism Unit (BRS1C) Disassembly of Rear Panel Disassembly of Voltage Selector P.C.B. 29 8.1.Disassembly Flow Chart 8.21. Re

31、ar Panel 8.3. Top Cabinet 8.20. CD Mechanism Unit (BRS1C) 8.15. Switching Regulator IC (IC5701) 8.16. Rectifier Diode (D5702) 8.18. Rectifier Diode (D5802) 8.17. Rectifier Diode (D5801) 8.19. Rectifier Diode (D5803) 8.5. Front Panel Unit 8.6. Panel P.C.B. 8.9. USB P.C.B. 8.10. CD Lid 8.7. Remote Sen

32、sor P.C.B. 8.11. Main P.C.B. 8.13. Audio Digital Amp IC (IC5902) 8.14. SMPS P.C.B. 8.12. Voltage Regulator IC (IC2010) 8.4. Tuner P.C.B. 8.22. Voltage Selector P.C.B. 8.8. LCD P.C.B. 30 8.2.Main Components and P.C.B. Locations 31 8.3.Disassembly of Top Cabinet Step 1 Remove 2 screws on each side. St

33、ep 2 Remove 5 screws. Step 3 Slightly pull both side of Top Cabinet outwards as arrow shown. Step 4 Slightly lift up both side of Top Cabinet in an outward direction as shown. Step 5 Remove Top Cabinet. Caution: During assembling, ensure that the Top Cabinet catches are properly located into Front P

34、anel Unit as shown. 32 8.4.Disassembly of Tuner P.C.B. Refer to “Disassembly of Top Cabinet”. Step 1 Remove 1 screw. Step 2 Detach 9P FFC at the connector (CN51) on Tuner P.C.B. Step 3 Remove Tuner P.C.B. 8.5.Disassembly of Front Panel Unit Refer to “Disassembly of Top Cabinet”. Step 1 Detach 17P FF

35、C at the connector (CN2003) on Main P.C.B. Step 2 Detach 5P Cable Wire at the connector (CN1113) on USB P.C.B. Step 3 Push inwards slightly at the Bottom Chassis as arrow shown and release tab at left side of Front Panel Unit. 33 Step 4 Release tabs at bottom. Step 5 Push inwards slightly at the Bot

36、tom Chassis and release tab at right side of Front Panel Unit. Step 6 Remove Front Panel Unit 34 8.6.Disassembly of Panel P.C.B. Refer to “Disassembly of Top Cabinet”. Refer to “Disassembly of Front Panel Unit”. Step 1 Remove the Volume Knob. Step 2 Remove the Track Knob. Step 3 Remove 7 screws. Ste

37、p 4 Release catches by following the sequences (1-3). Step 5 Remove the Panel P.C.B. from Front Panel Unit. 35 Step 6 Desolder 7 pins at (ZJ600B) on Panel P.C.B. Step 7 Remove the Panel P.C.B. Caution: During assembling, ensure that Panel P.C.B. is seated properly through the guides & fully catched.

38、 8.7.Disassembly of Remote Sensor P.C.B. Refer to “Disassembly of Top Cabinet”. Refer to “Disassembly of Front Panel Unit”. Refer to (Step 1) to (Step 5) of item 9.6. Step 1 Remove Remote Sensor P.C.B. Caution: During assembling, ensure that Remote Sensor P.C.B. is properly inserted & fully connecte

39、d to Panel P.C.B. 36 8.8.Disassembly of LCD P.C.B. Refer to “Disassembly of Top Cabinet”. Refer to “Disassembly of Front Panel Unit”. Step 1 Remove 2 screws. Step 2 Lift up LCD Unit. Step 3 Place LCD P.C.B. on an insulated material. Step 4 Desolder 7 pins (ZJ6000A) on LCD P.C.B. Step 5 Remove LCD P.

40、C.B. Caution: During assembling, ensure that LCD Unit is prop- erly located & seated onto the guides. 37 8.9.Disassembly of USB P.C.B. Refer to “Disassembly of Top Cabinet”. Refer to “Disassembly of Front Panel Unit”. Step 1 Remove 2 screws. Step 2 Remove USB Unit. Step 3 Release 2 catches. Step 4 R

41、emove the USB P.C.B. 8.10.Disassembly of CD Lid Refer to “Disassembly of Top Cabinet”. Refer to “Disassembly of Front Panel Unit”. Step 1 Remove the spring as arrow shown in order of sequence (1) to (3). Caution: During assembling, ensure that the spring is assembly at right position. Step 2 Remove

42、CD Lid as arrow shown. 38 8.11.Disassembly of Main P.C.B. Refer to “Disassembly of Top Cabinet”. Refer to “Disassembly of Front Panel Unit”. Step 1 Detach 15P Cable Wire at the connector (CN5802) on SMPS P.C.B. Step 2 Remove 3 screws. Step 3 Remove 2 screws. Step 4 Detach Main P.C.B. from Rear Panel

43、 according to arrow shown. 39 Step 5 Detach 27P FFC at the connector (CN2706) on Main P.C.B. Step 6 Detach 9P FFC at the connector (CN2010) on Main P.C.B. Step 7 Remove Main P.C.B. Caution: During assembling, ensure that earth plate is bended flat against the Main P.C.B. properly when inserted to lo

44、cators. 8.12.Replacement of Voltage Regu- lator IC (IC2010) Refer to “Disassembly of Main P.C.B.”. 8.12.1.Disassembly of Voltage Regulator IC (IC2010) Step 1 Desolder pins of the Voltage Regulator IC (IC2010) on the solder side of Main P.C.B. Step 2 Remove 1 screw. Step 3 Remove the Voltage Regulato

45、r IC (IC2010) from the Main P.C.B. Caution: Avoid touching the Heatsink due to its high tem- perature after prolong use. Touching it may lead to inju- ries. 40 8.12.2.Assembly of Voltage Regulator IC (IC2010) Step 1 Apply grease to the Heatsink. Step 2 Fix the Voltage Regulator IC (IC2010) on Main P

46、.C.B. Caution: Ensure pins of the Voltage Regulator IC (IC2010) are properly seated on Main P.C.B. Step 3 Screw the Voltage Regulator IC (IC2010) to the Heat- sink. Caution: Ensure the Voltage Regulator IC (IC2010) is tightly screwed to the Heatsink. Step 4 Solder pins of the Voltage Regulator IC (IC2010) on the solder side of Main P.C.B. 8.13.Replacement of Audio Digital Amp IC (IC5902) Refer to