Panasonic-SAAKX34P-cs-sm 电路图 维修手册.pdf

《Panasonic-SAAKX34P-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-SAAKX34P-cs-sm 电路图 维修手册.pdf（126页珍藏版）》请在收音机爱好者资料库上搜索。

1、 Panasonic Corporation 2012. All rights reserved. Unauthorized copying and distribution is a violation of law. PSG1202003CE CD Stereo System Model No.SA-AKX34PH SA-AKX34PN 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. Before Repair and Adjustment- 3 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 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 General/Introduction- 13 5.1. Media Information- 13 6 Location of Controls and Components- 14 6.1. Remote Control Key Button Operation

4、 - 14 6.2. Main Unit Key Button Operation- 15 7 Installation Instructions - 16 7.1. Speaker and A/C Connection- 16 8 Service Mode- 17 8.1. Cold-Start - 17 8.2. Doctor Mode Table- 18 Please refer to the original service manual for: CD Mechanism Unit (BRS11C), Order No. PSG1201019AE Speaker system SB-

5、AKX34PN-K, Order No. PSG1202004CE RadioFans.CN 收音机爱 好者资料库 2 8.3. Reliability Test Mode (CD Mechanism Unit (BRS11C) -21 8.4. Self-Diagnostic Mode -22 8.5. Self-Diagnostic Error Code Table -22 8.6. Sales Demonstration Lock Function -23 9 Troubleshooting Guide-24 9.1. Part Location -24 9.2. Troubleshoo

6、ting Guide for F61 and/or F76-27 9.3. D-Amp IC Operation X: NG (In case that time out happens.) : Either one of FOAOC, TR AOC and FO coarse AGC is NG. : If theAGC is NG (ignore others). 2.To cancel, press 0 on remote control . 2.To cancel, press 0 on remote control . ROM Version (Display 1) (Display

7、 2) Year Develop Year Develop ROM Type Version(Decimal) after 2 sec Version (Decimal )Checksum (Hex) 21 8.3.Reliability Test Mode (CD Mechanism Unit (BRS11C) Below is the process flow chart of the aging test for the CD Mechanism Unit (BRS11C). Fig. 1. Reliability Test (Loading) Fig. 2. Reliability T

8、est (Traverse) Fig. 3. Reliability Test (Combination) OPEN Operation OPEN wait for 1 s CLOSE 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 Operati

9、on Count up First Track Last Track Last Track Play 10 s 22 8.4.Self-Diagnostic Mode 8.5.Self-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 erro

10、r 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-diagnostic mode. 8.5.1.Power Supply Error Code Table FL Display Key Operation Front Key Item Description Mode Name To enter into self d

11、iagnostic 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 information Delete error code Step 1: Select CD mode (Ensure no disc is inserted). Step 2: Press & hold follow by / on main unit for 2 se

12、conds. 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 control. To exit, press /I on main unit or remote control. Example: 23 8.5.2.CD Mechanism Error Code Table (CD Mechanism Unit (BRS1C) 8.6.S

13、ales Demonstration Lock Function 8.6.1.Entering into sales Demo Mode Here is the procedures to enter into Sales Demonstration Lock. Step 1: Turn on the unit. Step 2: Select to any mode function. Step 3: Press OPEN/CLOSE key then / key at the same time,press and hold both OPEN/CLOSE and / keys for 5

14、sec. Step 4: 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 Step 1: Turn on the unit. Step 2: Select to any mode function. Step 3: Press OPEN/CLOSE key th

15、en / key at the same time,press and hold both OPEN/CLOSE and / keys for 5 sec. Step 4: The display will show upon entering into this mode for 2 sec. Error CodeDiagnostic ContentsDescription of errorAutomatic FL DisplayRemarks CD H15CD Open AbnormalDuring operation POS_SW_R On fail to be detected wit

16、h 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. Press on main unit for next error. F26Communication betw

17、een 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. 24 9Troubleshooting Guide 9.1.Part Location 9.1.1.SMPS P.C.B. Fig. 1 SMPS P.C.B. 25 9.1.2.Main P.C.B. (Front side) Fig. 2 Main P.C.B. 26 9.1.3.Main P

18、.C.B. (Back Side) Fig. 3 Main P.C.B. 27 9.2.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. 5Switching Reg

19、ulator5IC5701 Faulty . 6T5751 Faulty. Switching Mode Power Supply Control IC (IC5799) faulty. Set can ON1Speaker Output1Faulty speaker unit, Loose connection, Short . then F61 2D-AMP circuitD-AMP IC, IC5800 defective. (Check DC voltage at speaker terminals, 3V and above defective) DC Voltage ok but

20、no sound, check DC Voltage at Pin 1. 2a, 2b ok but no sound, check PWM waveform at Pin 10 and Pin 14 . If no PWM, 4 resistors defective (R5802, R5803, R5804, R5805). Set can ON 1Main Transformer T5701Short circuit between Pin 11 and Pin 12 . then F76 1b Short circuit between Pin 13 and Pin 14 . 1c S

21、hort circuit between Pin 16 and Pin 17 . 2 2 Regulator Circuits2a 2b 2c 3 Q2022 faulty (No +5V output). 2d IC2014 faulty (No +3.3V output). 2e IC2011 faulty (No +5V output). 2fL2001 Open. 3Photocoupler PC5720 solder crack, PC5720 Dry joint, short circuit, open circuit. 1Rectifier Diode D5801Improper

22、 contact between D5801 to Heatsink . Rectifier Diode D5802 TH5861 Improper contact between D5802 to Heatsink . Thermistor TH5860,1b Set trigger temperature protection. Set can ON working normally for some time then F76 SymptomRemarks Set cannot ON1AC Cord1AC Cord Faulty, Loose connection 2 3Fuse, F1

23、3Fuse, F1 Open. 4Photocoupler4PC5702/PC5799 solder crack. PC5702, PC5799Dry joint, short circuit, open circuit. IC2010 faulty (No +9V output). L2000 Open. Possible Fault(s)Checking Items AC Inlet, P5701P5701 solder crack, dry joint . IC, IC5701 Sub Transformer (T5751) 2 1a Refer to Section 9.1.1 Fig

24、. 1. SMPS P.C.B. Refer to Section 9.1.2 Fig. 2. and Fig.3. Main P.C.B. Refer to Section 9.1.1 Fig. 1. SMPS P.C.B. Refer to Section 9.1.1 Fig. 1. SMPS P.C.B. Refer to Section 9.1.2 Fig. 2. Main P.C.B. Refer to Section 9.1.1 Fig. 1. SMPS P.C.B. 2b 2a 5V ok condition, 2.5V or 0V defective. 2c 1a 6a 6b

25、D5798 faulty.6c 28 9.3.D-Amp IC Operation & Control 29 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, MUTE_A and MODE_DA must be used to cover the “Pop” sound cause by F-HOP switchin

26、g. 30 10 Service Fixture & Tools Prepare service tools before process service position. Ref. NoService ToolsRemarks SFT1Main P.C.B. (CN2007) - SMPS P.C.B. (CN5802)REX1527(15P Cable Wire) 31 11 Disassembly and Assembly Instructions Illustration is based on SA-AKX34PH-K. Caution Note: This section des

27、cribes 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 described in the service manual) Before carrying out the disassembly process, please ensure all the safet

28、y 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 its high temperature after prolong use. (See caution as described below) During disassembly and assemb

29、ly, 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- vice manual. Select items from the following indexes when disassembly or replacement are required. Disasse

30、mbly of Top Cabinet Disassembly of Front Panel Unit Disassembly of Panel P.C.B. Disassembly of Memory LED P.C.B. Disassembly of Remote Sensor P.C.B. Disassembly of USB P.C.B. Disassembly of Music Port P.C.B. Disassembly of CD Lid Disassembly of Main P.C.B. Replacement of Voltage Regulator (IC2010) R

31、eplacement of Voltage Regulator (IC2011) Replacement of Audio Digital Amp IC (IC5800) Disassembly of SMPS P.C.B. Replacement of Switching Regulator IC (IC5701) Replacement of Rectifier Diode (D5702) Replacement of Rectifier Diode (D5801) Replacement of Rectifier Diode (D5802) Replacement of Rectifie

32、r Diode (D5803) Disassembly of CD Mechanism Unit (BRS11C) Disassembly of CD Interface P.C.B. Disassembly of CD Servo P.C.B. Disassembly of Rear Panel Disassembly of Voltage Selector P.C.B. 32 11.1.Disassembly Flow Chart 11.3.Top Cabinet 11.11. Main P. C.B. 11.21. CD Mechanism Unit (BRS11C) 11.24. Re

33、ar Panel CD Servo P. C.B.11.23. CD Interface P.C.B.11.22. 11.25. Voltage Selector P. C.B. 11.4. Front panel Unit 11.5. Memory LED P.C.B.11.6. Panel P. C.B. 11.7. Remote Sensor P. C.B. 11.8. USB P. C.B. 11.9. Music Port P. C.B. 11.10. .CD Lid 11.12. Voltage Regulator IC (IC2010) 11.13. Voltage Regula

34、tor IC (IC2011) 11.14. Audio Digital Amp IC (IC5800) 11.15. SMPS P. C.B. 11.16. Switching Regulator IC (IC5701) 11.17. Rectifier Diode (D5702) 11.18. Rectifier Diode (D5801) 11.19. Rectifier Diode (D5802) 11.20. Rectifier Diode (D5803) 33 11.2.Main Components and P.C.B. Locations 34 11.3.Disassembly

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

36、sure that catches of the Top Cabinet catches are properly located & inserted into Front Panel Unit as shown. 35 11.4.Disassembly of Front Panel Unit Refer to “Disassembly of Top Cabinet”. Step 1 Detach 27P FFC at the connector (CN2003) on the Main P.C.B. Step 2 Detach 5P Cable Wire at the connector

37、(CN2700) on the Main P.C.B. Step 3 Remove 1 screw at the SMPS Inner Chassis Unit. Step 4 Push inwards slightly at the Bottom Chassis as arrow shown and release tab at left side of Front Panel Unit. Step 5 Release tabs at bottom of the unit. 36 Step 6 Push inwards slightly at the Bottom Chassis and r

38、elease tab at right side of Front Panel Unit. Step 7 Remove the Front Panel Unit 11.5.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 Skip Knob. Step 3 Remove 6 screws. Step 4 Detach 2P Ca

39、ble Wire at the connector (CN6006) on Panel P.C.B. 37 Step 5 Release catches by following the sequences (1-11). Step 6 Lift up to remove the Panel P.C.B. Step 7 Desolder 4P Cable Wire at the connector (ZJ6002) on Panel P.C.B. Caution: During assembling, ensure that Panel P.C.B. is seated properly th

40、rough the guides & fully catched. 38 11.6.Disassembly of Memory LED P.C.B. Refer to “Disassembly of Top Cabinet”. Refer to “Disassembly of Front Panel Unit”. Refer to “Disassembly of Panel P.C.B.”. Step 1 Release 2 catches. 11.7.Disassembly of Remote Sensor P.C.B. Refer to “Disassembly of Top Cabine

41、t”. Refer to “Disassembly of Front Panel Unit”. Refer to “Disassembly of Panel P.C.B.”. Step 1 Remove the Remote Sensor P.C.B. Caution: During assembling, ensure that Remote Sensor P.C.B. is properly inserted & fully connected to Panel P.C.B. 39 11.8.Disassembly of USB P.C.B. Refer to “Disassembly o

42、f Top Cabinet”. Refer to “Disassembly of Front Panel Unit”. Refer to “Disassembly of Panel P.C.B.”. Step 1 Remove 1 screw. Step 2 Remove the USB Unit. Step 3 Release 1 catch. Step 4 Remove the USB P.C.B. 11.9.Disassembly of Music Port P.C.B. Refer to “Disassembly of Top Cabinet”. Refer to “Disassemb

43、ly of Front Panel Unit”. Step 1 Remove 1 screw. Step 2 Release 1 catch. Step 3 Desolder 8P Cable Wire at ZJ6401 on Panel P.C.B. Step 4 Remove the Music Port P.C.B. Caution: During assembling, ensure that Music Port P.C.B. is properly located & fully catched onto Front Panel. 40 11.10. Disassembly of

44、 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 the CD Lid as arrow shown. 11.11. Disass

45、embly 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 4 screws. 41 Step 3 Remove 2 screws. Step 4 Slightly lift up the Main P.C.B. from Bottom Chassis slot according to arrow shown. Step 5 Detach 2P Wire at the connector (CN2005) on the Main P.C.B. Step 6 Detach 30P FFC at the connector (CN2009) 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 inse