Panasonic-SAAKX18Px-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. PSG1401007CE CD Stereo System Model No.SA-AKX18PH SA-AKX18PN 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. Power Supply using SMPS - 5 1.6. Safety Parts Information- 6 2 Warning- 7 2.1. Prevention of Electrostatic Discharge (ESD) to Electrostatically Sensitive (ES) Devices- 7 2.2. Precaution of Laser Diode- 7 2.3. General

3、 description about Lead Free Solder (PbF)- 8 2.4. Handling Precautions for Traverse Unit- 8 2.5. Grounding for electrostatic breakdown prevention-9 3 Service Navigation - 10 3.1. Service Information- 10 4 Specifications- 11 5 Location of Controls and Components- 12 5.1. Remote Control Key Button Ope

4、ration - 12 5.2. Main Unit Key Button Operation- 12 6 Service Mode- 13 6.1. Cold-Start - 13 6.2. Sales Demonstration Lock Function - 13 6.3. Doctor Mode Table- 14 6.4. Self-Diagnostic Mode - 17 6.5. Self-Diagnostic Error Code Table- 17 7 Troubleshooting Guide - 18 Please refer to the original servic

5、e manual for: CD Mechanism Unit (BRS12C) , Order No. PSG1303059AE Speaker system SB-AKX18PN-K, Order No. PSG1401008CE RadioFans.CN 收音机爱 好者资料库 2 7.1. No Power or No Display-18 7.2. Bluetooth Pairing Failure-18 7.3. No Key Function-18 7.4. No Remote Control Function-18 7.5. USB Device Cannot DetectPre

6、ss-19 7.6. No Output Sound-19 7.7. Check Point-20 8 Disassembly and Assembly Instructions-21 8.1. Type of Screws -21 8.2. Disassembly Flow Chart-21 8.3. Main Components and P.C.B. Locations-22 8.4. Disassembly of Top Cabinet-23 8.5. Disassembly of Front Panel Unit-23 8.6. Disassembly of Panel P.C.B.

7、 and LCD P.C.B.-24 8.7. Disassembly of USB P.C.B. -25 8.8. Disassembly of Rear Panel.-25 8.9. Disassembly of Main P.C.B.-26 8.10. Disassembly of SMPS Module and Voltage Selector P.C.B.-27 8.11. Disassembly of CD Mechanism Unit-27 8.12. Disassembly of CD Interface P.C.B.-28 9 Service Position-29 9.1.

8、 Checking of Panel P.C.B. and LCD P.C.B.-29 9.2. Checking and Repairing of Main P.C.B. and SMPS P.C.B. -29 10 Block Diagram -31 10.1. System Control -31 10.2. Audio -33 10.3. Power Supply -34 11 Wiring Connection Diagram-35 12 Schematic Diagram-37 12.1. Schematic Diagram Notes-37 12.2. MAIN (Damp/Tu

9、ner/AUX/USB/DSP/ Bluetooth/Voltage Regulators/Micon) Circuit-39 12.3. Panel Circuit-47 12.4. LCD, USB X : NG (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). To cancel this mode, press 0 button on the remote control. To canc

10、el this mode, press 0 button on the remote control. (Display 1) (Display 2) Version (Decimal) ROM Type Year Develop after 2 sec Checksum (Hex) 17 6.4.Self-Diagnostic Mode 6.5.Self-Diagnostic Error Code Table Self-Diagnostic Function provides information on any problems occurring for the unit and its

11、 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-diagnostic mode. 6.5.1.Power Supply Error Code Table 6.5.2.CD Mechanism Error Code Table F

12、L Display Key Operation Front Key Item DescriptionMode Name Self Diagnostic Mode To enter into self diagnostic checkingStep 1: Select CD mode (Ensure no disc is inserted). To exit, press 8 on main unit or remote control. Step 2: Press & hold g button follow by y/i on main unit for 2 seconds. Error C

13、ode Information System will perform a check on any unusual/error code from the memory Example:Step 1: In self diagnostic mode, Press g on main unit. To exit, press 8 on main unit or remote control. Delete error code To clear the stored in memory (EEPROM IC) Step 1: In self diagnostic mode, Press 0 o

14、n remote control. 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

15、 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 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 u

16、nit for next error. 18 7Troubleshooting Guide 7.1.No Power or No Display 7.2.Bluetooth Pairing Failure 7.3.No Key Function 7.4.No Remote Control Function Press the Power Button of Unit or Remote Control to Turn ON the Unit No Display on FL Panel Caution: 1. AC Cord Plug-out 2. Check Fuse(F1) = 0 ohm

17、 refer to check point - Change SMPS Module Check Primary E-Cap (C2) Measured 300V or more refer to check point - 11 22 Change SMPS module Check Secondary Cap. (C17) or Secondary Rect. Diode (D11) Measured 14V or 33V refer to check point - 33 Change SMPS Module Check DC-DC Regulator IC (IC1003) Measu

18、red 6V at C1008/C1009 refer to check point 4 Change IC1003 Check Regulator IC (IC1005) Measured 3.3V at Pin 2 refer to check point 5 Change IC1005 Check Connector (CN2500) Measured 5/3.3/12/V at Pin 1-3 refer to check point 7 Check Main PCB Check Regulator IC (IC1004) Measured 1.6V at Pin 3 refer to

19、 check point 6 Change IC1004 If No Display on FL Panel Check FL PCB OK NG OK OKOKOKOKOK NGNGNG NG NG NG NG Press the Power Button of Unit or Remote Control to Turn ON the Unit Press PAIRING on the Set or Remote Control Display BLUETOOTH Check Main PCB NG PAIRING will display and blinking while handp

20、hone or other devices are Connecting to the Set Do the Cold Start AC Plug-out. Press and Hold Power Button then AC Plug-IN, wait to display - then will OFF the Set, back to start. NG Check Main PCB NG option 1 option 2 The set will displayed the READY followed by BLUETOOTH No Problem Found OKOKOK Pr

21、ess the Power Button or CD Door Open of Unit to Turn ON the Unit If Cannot Power ON (No Display) Check Main PCB OK NG Use Remote Control to Turn ON the Set FL Display Show HELLO OK Press the Power Buttons or Other Buttons Check and Ensure that Panel Connector is Properly Insert NG OKAll Buttons are

22、Working If Buttons are not Working Check Panel PCB NG OK No Problem Found Press the Remote Control Power Button to Power ON the Unit (Ensure have Battery & New) If Cannot Power ON (No Display) OK NG Press the Power Button of the Unit to Turn ON the Set FL Display Show HELLO OK Press Remote Control B

23、uttons Change FL PCB NG OKAll Remote Control Buttons are Working Change IC1005 NG OK No Problem Found Check Regulator IC (IC1005) Measured 3.3V at Pin # 2 refer to check point 4 19 7.5.USB Device Cannot DetectPress 7.6.No Output Sound Press the Power Button of Unit or Remote Control to Turn ON the U

24、nit Check Main PCB NG Plug-in USB Device to USB port with Red LED indicated (e.g. USB B) FL Display USB B NG Check Main PCB NG Press Play FL Display Music Name or Title No Problem Found OKOKOK Press USB/CD on the Set or Remote Control to Select USB A or B, Display USB A/B and NO DEVICE USBB_5V at CN

25、2503 pin #7 (USBA_5V at pin # 6) refer to check point 8 CD PlayCD Play USB PlayUSB Play Bluetooth PlayBluetooth Play Tuner ModeTuner Mode Press Power Button of Unit or Remote Control to Turn ON the Unit Check Main PCB NG Press Play FL Display Track & Count NG Output Sound No Problem Found OKOK CD Mo

26、de OK Check CD Mechanism Press Power Button of Unit or Remote Control to Turn ON the Unit Check Main PCB NG Insert USB Thumdrive FL Display USB A/B Press Play NG Output Sound No Problem Found OK USB Mode OKOK Change USB Device Press Power Button of Unit or Remote Control to Turn ON the Unit Check Ma

27、in PCB NG Press Play FL Display BLUETOOTH NG Output Sound No Problem Found OK Bluetooth Mode OKOK Re-connect Bluetooth into the Device Press Power Button of Unit or Remote Control to Turn ON the Unit Check Main PCB NG Search for Tuner Signal NG Output Sound No Problem Found OK FM/AM Mode OKOK Check

28、the Antenna Wire Connection 20 7.7.Check Point SMPS ModuleSMPS Module Fuse (F1) (0 ohm) 2 2 Pri. Cap (C2) (300V or more) 3 3 Sec. Cap. C17 11 (13V or 33V) Main PCBMain PCB 4 5 C1008/C1009 (6V) IC1005_Pin 2 3.3V 6 IC1004_Pin 3 1.6V 7 CN2500_Pin 1- 3 5V/3.3V/12V 8 CN2503 Pin #6 (USB-A) /Pin #7 (USB-B)

29、 5V 21 8Disassembly and Assembly Instructions Illustration is based on SA-AKX18PH-K. 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 desc

30、ribed in this 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

31、its high temperature after prolong use. Be sure to use proper service tools, equipments or jigs during repair. 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. and LCD P.C.B. D

32、isassembly of USB P.C.B. Disassembly of Rear Panel Disassembly of Main P.C.B. Disassembly of SMPS Module and Voltage Selector P.C.B. Disassembly of CD Mechanism Unit Disassembly of CD Interface P.C.B. 8.1.Type of Screws 8.2.Disassembly Flow Chart 8.9. Main P.C.B. 8.11. CD Mechanism Unit 8.8. Rear Pa

33、nel 8.12. CD Interface P.C.B. 8.5. Front Panel Unit 8.4. Top Cabinet 8.6. Panel P.C.B. and LCD P.C.B. 8.7. USB P.C.B. 8.10. SMPS Module and Voltage Selector P.C.B. 22 8.3.Main Components and P.C.B. Locations 23 8.4.Disassembly of Top Cabinet Step 1 Remove 4 screws. Step 2 Remove 5 screws. Step 3 Rel

34、ease both sides of Top Cabinet outwards as arrow shown. Step 4 Slightly lift up to remove Top Cabinet. 8.5.Disassembly of Front Panel Unit Refer to “Disassembly of Top Cabinet”. Step 1 Detach 8P Cable Wire at the connector (CN2502) on Main P.C.B. Step 2 Detach 17P FFC at the connector (CN2500) on Ma

35、in P.C.B. Step 3 Release tabs on both side of the Front Panel Unit. 24 Step 4 Release tabs at bottom of unit. Step 5 Detach to remove Front Panel Unit 8.6.Disassembly of Panel P.C.B. and LCD P.C.B. Refer to “Disassembly of Top Cabinet”. Refer to “Disassembly of Front Panel Unit”. Step 1 Remove Volum

36、e Knob. Step 2 Remove Control Knob. Step 3 Remove 7 screws. Step 4 Release catches. 25 Step 5 Remove Panel P.C.B. and LCD P.C.B. 8.7.Disassembly of USB P.C.B. Refer to “Disassembly of Top Cabinet”. Refer to “Disassembly of Front Panel Unit”. Refer to “Disassembly of Panel P.C.B. and LCD P.C.B. Step

37、1 Remove 1 screw. Step 2 Remove catches. Step 3 Remove USB P.C.B. 8.8.Disassembly of Rear Panel. Refer to “Disassembly of Top Cabinet”. Step 1 Remove 9 screws. Step 2 Detach Voltage Selector P.C.B. 26 Step 3 Lift up Inner Chassis Unit to release the catches between the Inner Chassis Unit and the Rea

38、r Panel. Step 4 Release tabs. Step 5 Release Rear Panel. 8.9.Disassembly of Main P.C.B. Refer to “Disassembly of Top Cabinet”. Refer to “Disassembly of Rear Panel”. Step 1 Detach 10P Cable Wire at the connector (CON2) on SMPS P.C.B. Step 2 Detach 24P FFC at the connector (P2005) on Main P.C.B. Step

39、3 Detach 10P FFC at the connector (P2004) on Main P.C.B. Step 4 Detach 17P FFC at the connector (CN2500) on Main P.C.B. Step 5 Detach 8P Cable at the connector (CN2502) on Main P.C.B. Step 6 Remove 2 screws. Step 7 Remove Main P.C.B. 27 8.10.Disassembly of SMPS Module and Voltage Selector P.C.B. Ref

40、er to “Disassembly of Top Cabinet”. Refer to “Disassembly of Rear Panel”. Step 1 Detach 10P Cable Wire at the connector (CON2) on SMPS Module. Step 2 Remove 2 screws. Step 3 Release catch. Step 4 Remove SMPS Module and Voltage Selector P.C.B. 8.11.Disassembly of CD Mecha- nism Unit Refer to “Disasse

41、mbly of Top Cabinet”. Refer to “Disassembly of Front Panel Unit”. Step 1 Remove 8 screws. Step 2 Detach Voltage Selector P.C.B. Step 3 Detach 10P FFC at a connector (P2004) on Main P.C.B. Step 4 Detach 24P FFC at a connector (P2005) on Main P.C.B. Step 5 Remove 1 screw. Step 6 Remove 1 screw. 28 Ste

42、p 7 Release catches. Step 8 Detach Inner Chassis Unit. Step 9 Remove 2 screws. Step 10 Remove CD Mechanism Unit. 8.12.Disassembly of CD Interface P.C.B. Refer to “Disassembly of Top Cabinet”. Refer to “Disassembly of Front Panel Unit”. Refer to “Disassembly of CD Mechanism Unit”. Step 1 Remove 2 scr

43、ews. Step 2 Desolder pins of the motor (M7301). Step 3 Desolder pins of the motor (M7302). Step 4 Remove CD Interface P.C.B. 29 9Service Position Note: For description of the disassembly procedures, see the Section 8. 9.1.Checking of Panel P.C.B. and LCD P.C.B. Step 1 Remove Top Cabinet. Step 2 Remove Front Panel Unit. Step 3 Remove the Panel P.C.B.