Panasonic-SAAKX600P-cs-sm 电路图 维修手册.pdf

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1、 Panasonic Corporation 2015. All rights reserved. Unauthorized copying and distribution is a violation of law. PSG1503007CE CD Stereo System Model No.SA-AKX600PN SA-AKX600PS SA-AKX800PN SA-AKX800PS Product Color: (K).Black Type TABLE OF CONTENTS PAGEPAGE 1 Safety Precautions- 3 1.1. General Guidelin

2、es- 3 1.2. Before Repair and Adjustment- 4 1.3. Protection Circuitry- 4 1.4. Power Supply using SMPS Module- 5 1.5. 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 Oper

4、ation - 12 5.2. Main Unit Key Button Operation- 13 6 Service Mode- 14 6.1. Cold-Start - 14 6.2. Sales Demonstration Lock Function - 14 6.3. Doctor Mode Table- 15 6.4. Self-Diagnostic Mode - 17 6.5. Self-Diagnostic Error Code Table- 17 7 Troubleshooting Guide - 19 8 Disassembly and Assembly Instructi

5、ons- 20 8.1. Types of Screws- 20 8.2. Disassembly Flow Chart - 21 8.3. Main Components and P.C.B. Locations- 21 8.4. Disassembly of Top Cabinet- 22 8.5. Disassembly of Front Panel Unit- 22 Please refer to the original service manual for: ? ? CD Mechanism Unit (BRS12C) , Order No. PSG1303059AE ? ? Sp

6、eaker system SB-AKX800PNK, SB-AKW800PNK Order No. PSG1503010CE RadioFans.CN 收音机爱 好者资料库 2 8.6. Disassembly of Panel P.C.B.-23 8.7. Disassembly of USB P.C.B. -24 8.8. Disassembly of Music Port P.C.B. -24 8.9. Disassembly of Rear Panel-24 8.10. Disassembly of Main P.C.B.-25 8.11. Disassembly of SMPS Mo

7、dule -26 8.12. Disassembly of Tuner P.C.B.-26 8.13. Disassembly of CD Mechanism Unit-27 8.14. Disassembly of CD Interface P.C.B.-28 9 Service Position-29 9.1. Checking of Panel P.C.B. -29 9.2. Checking of Main P.C.B. and SMPS Module-29 10 Block Diagram -31 10.1. System Control -31 10.2. Audio -34 10

8、.3. Power Supply -36 11 Wiring Connection Diagram-38 12 Schematic Diagram-39 12.1. Schematic Diagram Notes-39 12.2. Main (CD Motor Driver) Circuit-41 12.3. Main (USB EMMC) Circuit-42 12.4. Main (SOC IO Expander) Circuit (1/2)-43 12.5. Main (SOC IO Expander) Circuit (2/2)-44 12.6. Main (Damp) Circuit

9、 (1/2) -45 12.7. Main (Damp) Circuit (2/2) -46 12.8. Main (Connector) Circuit -47 12.9. Main (DSP) Circuit-48 12.10. Main (VREG Fan) Circuit (1/2)-49 12.11. Main (VREG Fan) Circuit (2/2)-50 12.12. Tuner Circuit-51 12.13. Panel Circuit-52 12.14. USB, CD Interface and Music Port Circuit-53 13 Printed

10、Circuit Board -54 13.1. Main P.C.B. (Side A)-54 13.2. Main P.C.B. (Side B)-55 13.3. Tuner and CD Interface P.C.B. -56 13.4. Panel, USB and Music Port P.C.B. -57 14 Voltage and Waveform Measurement -59 14.1. Voltage Measurement-59 14.2. Waveform Chart -62 15 Exploded View and Replacement Parts List-6

11、3 15.1. Cabinet Parts Location 1-63 15.2. Cabinet Parts Location 2-64 15.3. Packaging (For SC-AKX600PN/PS) -65 15.4. Packaging (For SC-AKX800PN/PS) -66 15.5. Mechanical Replacement Part List -67 15.6. Electrical Replacement Parts List-69 RadioFans.CN 收音机爱 好者资料库 3 1Safety Precautions 1.1.General Guid

12、elines 1. IMPORTANT SAFETY NOTICE There are special components used in this equipment which are important for safety. These parts are marked by in the Schematic Diagrams, Circuit Board Layout, Exploded Views and Replacement Parts List. It is essential that these critical parts should be replaced wit

13、h manufacturers specified parts to prevent X-RADIATION, shock, fire, or other hazards. Do not modify the original design without permission of manufacturer. 2. An Isolation Transformer should always be used during the servicing of AC Adaptor whose chassis is not isolated from the AC power line. Use

14、a transformer of adequate power rating as this protects the technician from accidents resulting in personal injury from electrical shocks. It will also protect AC Adaptor from being damaged by accidental shorting that may occur during servicing. 3. When servicing, observe the original lead dress. If

15、 a short circuit is found, replace all parts which have been overheated or damaged by the short circuit. 4. After servicing, see to it that all the protective devices such as insulation barriers, insulation papers shields are properly installed. 5. After servicing, make the following leakage current

16、 checks to prevent the customer from being exposed to shock hazards. 1.1.1.Leakage Current Cold Check 1. Unplug the AC cord and connect a jumper between the two prongs on the plug. 2. Measure the resistance value, with an ohmmeter, between the jumpered AC plug and each exposed metallic cabinet part

17、on the equipment such as screwheads, connectors, control shafts, etc. When the exposed metallic part has a return path to the chassis, the reading should be between 1M and 5.2M. When the exposed metal does not have a return path to the chassis, the reading must be 1.1.2.Leakage Current Hot Check 1.

18、Plug the AC cord directly into the AC outlet. Do not use an isolation transformer for this check. 2. Connect a 1.5k, 10 watts resistor, in parallel with a 0.15F capacitors, between each exposed metallic part on the set and a good earth ground such as a water pipe, as shown in Figure 1-1. 3. Use an A

19、C voltmeter, with 1000 ohms/volt or more sensitivity, to measure the potential across the resistor. 4. Check each exposed metallic part, and measure the voltage at each point. 5. Reverse the AC plug in the AC outlet and repeat each of the above measurements. 6. The potential at any point should not

20、exceed 0.75 volts RMS. A leakage current tester (Simpson Model 229 or equivalent) may be used to make the hot checks, leakage current must not exceed 1/2 milliamp. In case a measurement is outside of the limits specified, there is a possibility of a shock hazard, and the equipment should be repaired

21、 and rechecked before it is returned to the customer. Figure 1-1 RadioFans.CN 收音机爱 好者资料库 4 1.2.Before Repair and Adjustment Disconnect AC power to discharge AC capacitor (in SMPS Module) as indicate below diagram through a 10 , 10 W resistor to ground. Figure 1-2 Caution: DO NOT SHORT-CIRCUIT DIRECT

22、LY (with a screwdriver blade, for instance), as this may destroy solid state devices. After repairs are completed, restore power gradually using a variac to avoid overcurrent. Current consumption at AC 120 V, 60 Hz in Power ON, FM Tuner at volume minimal mode should be 750 mA (PN). Current consumpti

23、on at AC 220240 V, 50/60 Hz in Power ON, FM Tuner at volume minimal mode should be 750 mA (PS). 1.3.Protection Circuitry The protection circuitry may have operated if either of the following conditions are noticed: No sound is heard when the power is turned on. Sound stops during a performance. The

24、function of this circuitry is to prevent circuitry damage if, for example, the positive and negative speaker connection wires are “shorted”, or if speaker systems with an impedance less than the indicated rated impedance of the amplifier are used. If this occurs, follow the procedure outlines below:

25、 1. Turn off the power. 2. Determine the cause of the problem and correct it. 3. Turn on the power once again after one minute. Note: When the protection circuitry functions, the unit will not operate unless the power is first turned off and then on again. 5 1.4.Power Supply using SMPS Module This m

26、odel uses Switching Mode Power Supply (SMPS Module) to provide the power supply to the unit. Here is the supplied part no. for the Module 1) N0AB2GP00003 (PN) 2) N0AC2GP00004 (PS) 1.4.1.Method to Identify the Correct SMPS Module Figure 1-3 Figure 1-4 6 1.5.Safety Parts Information Safety Parts List:

27、 There are special components used in this equipment which are important for safety. These parts are marked by in the Schematic Diagrams, Exploded View OPEN/CLOSE and CD/RADIO/AUX keys for 5 sec or more. The display will show upon entering into this mode for 2 sec. Note: ;OPEN/CLOSE button is invali

28、d and the main unit displays LOCKED while the lock function mode is entered. Cancellation of Sales Demonstration Lock Mode To cancel sales demonstration lock mode. 1. Turn on the unit. 2. Select to CD mode function. 3. Set volume to Vol 19. 4. Press and hold ;OPEN/CLOSE and CD/RADIO/AUX keys for 5 s

29、ec or more. The display will show upon entering into this mode for 2 sec. FL Display Key Operation Front Key Item DescriptionMode Name 15 6.3.Doctor Mode Table 6.3.1.Doctor Mode Table 1 FL Display Key Operation Front Key Item DescriptionMode Name Doctor Mode EEPROM checksum check (Display 1) (For AK

30、X600) (Decimal)1234 To enter into Doctor ModeIn CD Mode: 1. Press button on main unit follow by 4 and 7 on remote control. In CD mode: 1. Enter into Doctor Mode 2. To exit, press DELETE button on remote control or, press POWER, /I button on Main Unit Displaying of 1. Year Develop. 2. Model Type. 3.

31、ROM Type. 4. Firmware Version. (Display 2) (For AKX800) Cold StartTo active cold start upon next AC power up when reset start is execute the next time. In Doctor Mode: 1. Press 4 button on the remote control. Version No. (001 999) specific for each firmware (Decimal)1234 16 6.3.2.Doctor Mode Table 2

32、 FL Display Key Operation Front Key Item DescriptionMode Name Volume Setting Check FL Display Check To check volume setting of the main unit. To check FL segment display. All segments will light up while all LED blink at 0.5s intervals. In Doctor Mode: 1. Press 7, 8, 9 button on the remote control.

33、In Doctor mode: 1. Press 1 button on the remote control. 2. To cancel this mode, press 0 button on the remote control. Press 7: VOL50 Press 8: VOL35 Press 9: VOL0 Volume In this mode, the tray will open & close automatically. Cancellation Display Loading TestTo determine open & close operation of th

34、e CD Mechanism Unit. The counter will increment by one. When reach 99999999 will change to 00000000 Cancellation Display Traverse TestTo determine traverse unit operation for inner & outer access track. The counter will increment by one. When reach 99999999 will change to 00000000 The counter will i

35、ncrement by one. When reach 99999999 will change to 00000000 Cancellation Display Reliability Test (Combination) In this mode, ensure the CD is in the main unit. To determine traverse unit operation & open/close operation of the mechanism. In this mode, ensure the CD is in the main unit. In Doctor M

36、ode: 1. Press 10 2 1 button on the remote control. In Doctor Mode: 2. To cancel this mode, press 0 button on the remote control. 2. To cancel this mode, press 0 button on the remote control. 2. To cancel this mode, press 0 button on the remote control. 1. Press 10 1 2 button on the remote control. I

37、n Doctor Mode: 1. Press 10 1 5 button on the remote control. 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 respective components by displaying the error codes. These error code such as U*,

38、 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 FL Display Key Operation Front Key Item DescriptionMode Name Self Diagnostic Mode To enter into self diagnostic checkin

39、gStep 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 Code Information System will perform a check on any unusual/error code from the memory Example:Step 1: In self diagnost

40、ic 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 on remote control. FL Display Key Operation Front Key Item DescriptionMode Name Error Code F61Diagnosis Contents: Power

41、 Amp IC output abnormal. Upon power on, PCONT=HIGH, DC_DET_AMP after checking LSI. Error Code F76Diagnosis Contents: Power Amp IC output abnormal. DC_DET_PWR. Error Code F61-76 Diagnosis Contents: Power Amp IC output abnormal. Both DCDET (NG). Press g on main unit for next error. Press g on main unit for next error. Press g on main unit for next error. 18 6.5.2.CD Mechanism Error Code Table 6.5.3.Bluetooth Error Code Table FL Display Key Operation Front Key Item DescriptionMode Name Error Code CD H15 Diagnosis Contents: CD Open Abnormal. During operation POS_SW_R On fai