Panasonic-SAAKX400LM-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. PMX1505003CE CD Stereo System Model No.SA-AKX200LM SA-AKX400LM Product Color: (K).Black Type TABLE OF CONTENTS 1 Safety Precautions 1.1. General Guidelines 1.2. Before Repair and Adjustment

2、 1.3. Protection Circuitry 1.4. Power Supply using SMPS Module 1.5. Safety Parts Information 2 Warning 2.1. Prevention of Electrostatic Discharge (ESD) to Electrostatically Sensitive (ES) Devices 2.2. Precaution of Laser Diode 2.3. General description about Lead Free Solder (PbF) 2.4. Handling Preca

3、utions for Traverse Unit 2.5. Grounding for electrostatic breakdown prevention 3 Service Navigation 3.1. Service Information 4 Specifications 5 Location of Controls and Components 5.1. Remote Control Key Button Operation 5.2. Main Unit Key Button Operation 6 Service Mode 6.1. Cold-Start 6.2. Sales D

4、emonstration Lock Function 6.3. Doctor Mode Table 6.4. Self-Diagnostic Mode Please refer to the original service manual for: CD Mechanism Unit (BRS12C) , Order No. PSG1303059AE Speaker system SB-AKX200LM, Order No. PMX1505004CE Speaker system SB-AKX400LM, Order No. PMX1505005CE Downloaded from www.M

5、 manuals search engine RadioFans.CN 收音机爱 好者资料库 2 6.5. Self-Diagnostic Error Code Table 7 Troubleshooting Guide 8 Disassembly and Assembly Instructions 8.1. Types of Screws 8.2. Disassembly Flow Chart 8.3. Main Components and P.C.B. Locations 8.4. Disassembly of Top Cabinet 8.5. Disassembly of Front

6、Panel Unit 8.6. Disassembly of Panel P.C.B. 8.7. Disassembly of USB P.C.B. 8.8. Disassembly of Music Port P.C.B. (For AKX400) 8.9. Disassembly of Rear Panel 8.10. Disassembly of Main P.C.B. 8.11. Disassembly of SMPS Module 8.12. Disassembly of CD Mechanism Unit 8.13. Disassembly of CD Interface P.C.

7、B. 9 Service Position 9.1. Checking of Panel P.C.B. and Main P.C.B. 9.2. Checking of SMPS Module 10 Block Diagram 10.1. System Control 10.2. Audio 10.3. Power Supply 11 Wiring Connection Diagram 12 Schematic Diagram 12.1. Schematic Diagram Notes 12.2. Main (Micon) Circuit (1/3) 12.3. Main (Micon) Ci

8、rcuit (2/3) 12.4. Main (Micon) Circuit (3/3) 12.5. Main (USB) Circuit 12.6. Main (Tuner AUX) Circuit 12.7. Main (DSP Bluetooth) Circuit 12.8. Main (Damp) Circuit 12.9. Main (Voltage Regulator) Circuit 12.10. Panel Circuit (For SA-AKX200LM) 12.11. Panel Circuit (For SA-AKX400LM) 12.12. USB, CD Interf

9、ace and Music Port Circuit 13 Printed Circuit Board 13.1. Main P.C.B. 13.2. Panel, USB P.C.B. (For AKX200LM) and CD Interface P.C.B. (For AKX200LM, AKX400LM) 13.3. Panel, USB and Music Port P.C.B. (For AKX400LM) 14 Voltage and Waveform Measurement 14.1. Voltage Measurement 15 Exploded View and Repla

10、cement Parts List 15.1. Cabinet Parts Location 1 15.2. Cabinet Parts Location 2 15.3. Packaging (For SC-AKX200LM) 15.4. Packaging (For SC-AKX400LM) 15.5. Mechanical Replacement Part List 15.6. Electrical Replacement Parts List Downloaded from www.M manuals search engine RadioFans.CN 收音机爱 好者资料库 3 1Sa

11、fety Precautions 1.1.General Guidelines 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 crit

12、ical parts should be replaced with 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 isol

13、ated from the AC power line. Use 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, ob

14、serve 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, see to it that all the protective devices such as insulation barriers, insulation papers shields are properly installed. 5. After servicing, m

15、ake 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 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 ea

16、ch 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 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.

17、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 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

18、 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 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 p

19、otential 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 current must not exceed 1/2 milliamp. In case a measurement is outside of the limits specified, there is a po ssibility of a shock hazard, an

20、d the equipment should be repaired and rechecked before it is returned to the customer. Figure 1-1 Downloaded from www.M manuals search engine 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

21、 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 power gradually using a variac to avoid overcurrent. Current consumption at AC 127 V, 60 Hz in Powe

22、r ON, FM Tuner at volume minimal mode should be 350 mA (AKX200LM). Current consumption at AC 127 V, 60 Hz in Power ON, FM Tuner at volume minimal mode should be 310 mA (AKX400LM). 1.3.Protection Circuitry The protection circuitry may have operated if either of the following conditions are noticed: N

23、o 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 less than the indicated rated imped

24、ance 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 unit will not operate unless the powe

25、r 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-AKX200LM) 2) N0AB1GL00001 (For SA-AKX400LM) Downloa

26、ded from www.M manuals search engine 5 1.4.1.For SA-AKX200LM Figure 1-3 1.4.2.For SA-AKX400LM Figure 1-4 Downloaded from www.M manuals search engine 6 1.5.Safety Parts Information Safety Parts List: There are special components used in this equipment which are important for safety. These parts are m

27、arked 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 more. The display will show upon entering into this mode for 2 sec. Note: ; OPEN/CLOSE button is invalid and the main unit di

28、splays 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 to 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

29、. (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 Key Item DescriptionMode Name Downloaded from www.M manuals search engine 16 6.3.Doctor Mode Table 6.3.1.Doctor Mode Tab

30、le 1 FL Display Key Operation Front Key Item DescriptionMode Name Doctor Mode EEPROM checksum check :edoM DC nIedoM r ot coD otn i retne oT 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, pr

31、ess 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 next time. In Doctor Mode: 1. Press 4 button on the remote control. Version

32、No. (001 999) specific for each firmware (Decimal)1234 (Display 1) (For AKX400) (Decimal)1234 Downloaded from www.M manuals search engine 17 6.3.2.Doctor Mode Table 2 FL Display Key Operation Front Key Item DescriptionMode Name Volume Setting Check FL Display Check To check the volume setting of the

33、 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 on the remote control. Press 7

34、: 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 00000000 Cancellation Display (

35、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 Cancellation Display Reliabilit

36、y 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 Doctor Mode: 2. To cancel this mod

37、e, 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. Downloaded from www.M manua

38、ls search engine 1? 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 unl

39、ess 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 checkingStep 1: Select CD mode (Ensure no disc is i

40、nserted). 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 diagnostic mode, Press g on main unit. To exit, pres

41、s 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 Amp IC output abnormal. Upon power on, PCON

42、T=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 n

43、ext error. Downloaded from www.M manuals search engine ? 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 fail to be detected within 4

44、 sec. Error No. shall be clear by force or during cold start. Error Code CD H16 Diagnosis Contents: CD Closing Abnormal. During operation POS_SW_CEN On fail to be detected within 4 sec. Error No. shall be clear by force or during cold start. Error Code F26 Diagnosis Contents: Communication between C

45、D servo LSI and micro-p abnormal. During switch to CD function, if SENSE = “L” within fail safe time of 20ms. Press g on main unit for next error. Press g on main unit for next error. Press g on main unit for next error. FL Display Key Operation Front Key Item DescriptionMode Name Error Code F70Diag

46、nosis Contents: Bluetooth Communication. Communication between Bluetooth module and micro-p abnormal. Error Code F77Diagnosis Contents: Bluetooth Address Error If there is no valid Bluetooth address stored in the EEPROM IC. Press g on main unit for next error. Press g on main unit for next error. Do

47、wnloaded from www.M manuals search engine 20 7Troubleshooting Guide “Contents for this section is not available at time of issue” Downloaded from www.M manuals search engine 21 8Disassembly and Assembly Instructions Illustration is based on SA-AKX400LM. Caution Note: This section describes the disas

48、sembly 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 safety precautions &

49、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 assembly, please ensure proper service tools, equipments or jigs is being used. During replacement of component parts, please refer to the section of “Replac