Panasonic-SAAKX400P-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. PSG1502007CE CD Stereo System Model No.SA-AKX200PN SA-AKX200PS SA-AKX400PN SA-AKX400PS 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- 4 1.5. Safety Parts Information- 7 2 Warning- 8 2.1. Prevention of Electrostatic Discharge (ESD) to Electrostatically Sensitive (ES) Devices- 8 2.2. Precaution of Laser Diode- 8 2.3. General

3、description about Lead Free Solder (PbF)- 9 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- 12 5 Location of Controls and Components- 13 5.1. Remote Control Key Button Op

4、eration - 13 5.2. Main Unit Key Button Operation- 14 6 Service Mode- 16 6.1. Cold-Start - 16 6.2. Sales Demonstration Lock Function - 16 6.3. Doctor Mode Table- 17 6.4. Self-Diagnostic Mode - 19 Please refer to the original service manual for: ? ? CD Mechanism Unit (BRS12C) , Order No. PSG1303059AE

5、? ? Speaker system SB-AKX200PNK, Order No. PSG1502001CE ? ? Speaker system SB-AKX400PNK, Order No. PSG1502002CE RadioFans.CN 收音机爱 好者资料库 2 6.5. Self-Diagnostic Error Code Table -19 7 Troubleshooting Guide-21 7.1. No Power or No Display-21 7.2. Bluetooth Pairing Failure-21 7.3. No Key Function-21 7.4.

6、 No Remote Control Function-21 7.5. USB Device Cannot Detect-22 7.6. No Output Sound-22 7.7. Check Point-23 8 Disassembly and Assembly Instructions-24 8.1. Types of Screws-24 8.2. Disassembly Flow Chart-25 8.3. Main Components and P.C.B. Locations-25 8.4. Disassembly of Top Cabinet-26 8.5. Disassemb

7、ly of Front Panel Unit-26 8.6. Disassembly of Panel P.C.B.-27 8.7. Disassembly of USB P.C.B. -28 8.8. Disassembly of Music Port P.C.B. (For AKX400)-28 8.9. Disassembly of Rear Panel-28 8.10. Disassembly of Main P.C.B.-29 8.11. Disassembly of SMPS Module -30 8.12. Disassembly of CD Mechanism Unit-30

8、8.13. Disassembly of CD Interface P.C.B.-32 9 Service Position-33 9.1. Checking of Panel P.C.B. and Main P.C.B.-33 9.2. Checking of SMPS Module -33 10 Block Diagram -35 10.1. System Control -35 10.2. Audio -37 10.3. Power Supply -38 11 Wiring Connection Diagram-40 12 Schematic Diagram-41 12.1. Schem

9、atic Diagram Notes-41 12.2. Main (Micon) Circuit (1/3) -43 12.3. Main (Micon) Circuit (2/3) -44 12.4. Main (Micon) Circuit (3/3) -45 12.5. Main (USB) Circuit-46 12.6. Main (Tuner AUX) Circuit -47 12.7. Main (DSP Bluetooth) Circuit -48 12.8. Main (Damp) Circuit -49 12.9. Main (Voltage Regulator) Circ

10、uit -50 12.10. Panel Circuit (For SA-AKX200PN/PS)-51 12.11. Panel Circuit (For SA-AKX400PN/PS)-52 12.12. USB, CD Interface and Music Port Circuit-53 13 Printed Circuit Board -54 13.1. Main P.C.B. -54 13.2. Panel, USB P.C.B. (For AKX200PN/PS) and CD Interface P.C.B. (For AKX200PN/PS, AKX400PN/PS)-55

11、13.3. Panel, USB and Music Port P.C.B. (For AKX400PN/PS)-56 14 Voltage and Waveform Measurement -57 14.1. Voltage Measurement-57 15 Exploded View and Replacement Parts List-61 15.1. Cabinet Parts Location 1-61 15.2. Cabinet Parts Location 2-62 15.3. Packaging (For SC-AKX200PN/PS) -63 15.4. Packaging

12、 (For SC-AKX400PN/PS) -64 15.5. Mechanical Replacement Part List -65 15.6. Electrical Replacement Parts List-67 RadioFans.CN 收音机爱 好者资料库 3 1Safety Precautions 1.1.General Guidelines 1. IMPORTANT SAFETY NOTICE There are special components used in this equipment which are important for safety. These pa

13、rts 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 with manufacturers specified parts to prevent X-RADIATION, shock, fire, or other hazards. Do not modify the original design witho

14、ut 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 a transformer of adequate power rating as this protects the technician from accidents resulting in personal injury from electr

15、ical 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 a short circuit is found, replace all parts which have been overheated or damaged by the short circuit. 4. After servicing, s

16、ee 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 checks to prevent the customer from being exposed to shock hazards. 1.1.1.Leakage Current Cold Check 1. Unplug the AC cord an

17、d 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 on the equipment such as screwheads, connectors, control shafts, etc. When the exposed metallic part has a return path to the

18、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. 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

19、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 AC voltmeter, with 1000 ohms/volt or more sensitivity, to measure the potential across the resistor. 4. Check each exposed meta

20、llic 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 exceed 0.75 volts RMS. A leakage current tester (Simpson Model 229 or equivalent) may be used to make the hot checks, leakage

21、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 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 Di

22、sconnect 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 DIRECTLY (with a screwdriver blade, for instance), as this may destroy solid state devices. After repairs are completed, restore pow

23、er 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 350 mA (AKX200PN). Current consumption at AC 220240 V, 50/60 Hz in Power ON, FM Tuner at volume minimal mode should be 350 mA (AKX200PS). Current consumptio

24、n at AC 120 V, 60 Hz in Power ON, FM Tuner at volume minimal mode should be 310 mA (AKX400PN). Current consumption at AC 220240 V, 50/60 Hz in Power ON, FM Tuner at volume minimal mode should be 310 mA (AKX400PS). 1.3.Protection Circuitry The protection circuitry may have operated if either of the f

25、ollowing conditions are noticed: No sound is heard when the power is turned on. Sound stops during a performance. The 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 l

26、ess than the indicated rated impedance of the amplifier are used. If this occurs, follow the procedure outlines below: 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 uni

27、t will not operate unless the power is first turned off and then on again. 1.4.Power Supply using SMPS Module This model uses Switching Mode Power Supply (SMPS Module) to provide the power supply to the unit. Here is the supplied part no. for the SMPS Module 1) N0AB1GK00001 (For SA-AKX200PNK) 3) N0A

28、D1GK00003 (For SA-AKX200PSK) 2) N0AB1GL00001 (For SA-AKX400PNK) 4) N0AD1GL00001 (For SA-AKX400PSK) 5 1.4.1.How to Identify SMPS Figure 1-3 1.4.2.For SA-AKX200PN Figure 1-4 1.4.3.For SA-AKX200PS Figure 1-5 6 1.4.4.For SA-AKX400PN Figure 1-6 1.4.5.For SA-AKX400PS Figure 1-7 7 1.5.Safety Parts Informat

29、ion Safety Parts List: 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 USB/CD keys for 5 sec or more. (For AKX400) 3. Press and hold ;OPEN/CLOSE and CD/RADIO/AUX keys for 5 sec or mo

30、re. 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. Cancellation of Sales Demonstration Lock Mode To cancel the sales demonstration lock mode. 1. Turn on the unit. 2. Select t

31、o CD mode function. 3. Set volume to Vol 19. (For AKX200) 4. Press and hold ;OPEN/CLOSE and USB/CD keys for 5 sec or more. (For AKX400) 4. Press and hold ;OPEN/CLOSE and CD/RADIO/AUX keys for 5 sec or more. The display will show upon entering into this mode for 2 sec. FL Display Key Operation Front

32、Key Item DescriptionMode Name 17 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 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

33、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. ROM Type. 4. Firmware Version. (Display 1) (For AKX200) Cold StartTo active cold start upon next AC power up when reset start is execute the nex

34、t time. In Doctor Mode: 1. Press 4 button on the remote control. Version No. (001 999) specific for each firmware (Decimal)1234 (Display 1) (For AKX400) (Decimal)1234 18 6.3.2.Doctor Mode Table 2 FL Display Key Operation Front Key Item DescriptionMode Name Volume Setting Check FL Display Check To ch

35、eck the volume setting of the main unit. To check the 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. In Doctor mode: 1. Press 1 button on the remote control. 2. To cancel this mode, press 0 button o

36、n 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 the open & close operation of the CD Mechanism Unit. The counter will increment by one. When reach 99999999 will change to 00

37、000000 Cancellation Display (For AKX200) (For AKX400) Traverse TestTo determine the traverse unit operation for inner & outer access track. The counter will increment by one. When reach 99999999 will change to 00000000 The counter will increment by one. When reach 99999999 will change to 00000000 Ca

38、ncellation Display Reliability Test (Combination) In this mode, ensure the CD is in the main unit. To determine the traverse unit operation & open/close operation of the mechanism. In this mode, ensure the CD is in the main unit. In Doctor Mode: 1. Press 10 2 1 button on the remote control. In Docto

39、r 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. In Doctor Mode: 1. Press 10 1 5 button on the remote control

40、. 19 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*, H* and F* are stored in memory and held unless it is clear

41、ed. 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 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 Code In