Panasonic-SAMAX5000P-cs-sm 电路图 维修手册.pdf

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1、 Panasonic Corporation 2016. All rights reserved. Unauthorized copying and distribution is a violation of law. PSG1603007CE CD Stereo System Model No.SA-MAX5000PN SA-MAX5000PS Product Color: (K).Black Type TABLE OF CONTENTS PAGEPAGE 1 Safety Precautions- 3 1.1. General Guidelines- 3 1.2. Before Repa

2、ir and Adjustment- 4 1.3. Protection Circuitry- 4 1.4. Safety Parts Information - 5 2 Warning- 6 2.1. Prevention of Electrostatic Discharge (ESD) to Electrostatically Sensitive (ES) Devices- 6 2.2. Precaution of Laser Diode- 6 2.3. General description about Lead Free Solder (PbF)- 7 2.4. Handling Pr

3、ecautions for Traverse Assy- 7 2.5. Grounding for electrostatic breakdown prevention - 8 3 Service Navigation- 9 3.1. Service Information-9 3.2. Software Update Procedure-9 4 Specifications- 10 5 Location of Controls and Components- 11 5.1. Remote Control Key Button Operation - 11 5.2. Main Unit Key

4、 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 - 16 6.5. Self-Diagnostic Error Code Table- 16 7 Troubleshooting Guide - 18 7.1. No Power or No Display- 18 7.2. Bluetooth Pairing Failure- 1

5、8 Please refer to the original service manual for: CD Mechanism Unit Order No. PSG1303059AE Speaker system SB-MAX5000PN/PS, Order No. PSG1603009CE RadioFans.CN 收音机爱 好者资料库 2 7.3. No Key Function-18 7.4. No Remote Control Function-18 7.5. No NFC-19 7.6. USB Device Cannot Detect-19 7.7. No Output Sound

6、-20 7.8. Check Point-21 8 Disassembly and Assembly Instructions-22 8.1. Type of Screws -22 8.2. Disassembly Flow Chart-23 8.3. Main Components and P.C.B. Locations-23 8.4. Disassembly of Top Cabinet -24 8.5. Disassembly of Front Panel Unit-24 8.6. Disassembly of Panel P.C.B.-25 8.7. Disassembly NFC

7、P.C.B.-26 8.8. Disassembly of USB P.C.B. -26 8.9. Disassembly of Mic P.C.B.-26 8.10. Disassembly of SMPS P.C.B.-27 8.11. Disassembly of Main P.C.B.-27 8.12. Disassembly of CD Mechanism Unit-28 8.13. Disassembly of CD Interface P.C.B.-28 9 Service Position-29 9.1. Checking of Panel P.C.B. -29 9.2. Ch

8、ecking of SMPS P.C.B.-29 9.3. Checking of Main P.C.B.-30 10 Block Diagram -31 10.1. System Control -31 10.2. Audio -35 10.3. Power Supply -38 11 Wiring Connection Diagram-40 12 Schematic Diagram-41 12.1. Schematic Diagram Notes-41 12.2. Main (Damp) Circuit (1/2) -43 12.3. Main (Damp) Circuit (2/2) -

9、44 12.4. Main (Fan LED) Circuit -45 12.5. Main (CD Motor Driver) Circuit-46 12.6. Main (VREG Fan) Circuit (1/2)-47 12.7. Main (VREG Fan) Circuit (2/2)-48 12.8. Main (Tuner AUX) Circuit -49 12.9. Main (IO Expansion) Circuit -50 12.10. Main (MICON) Circuit (1/2) -51 12.11. Main (MICON) Circuit (2/2) -

10、52 12.12. Panel Circuit (1/3)-53 12.13. Panel Circuit (2/3)-54 12.14. Panel Circuit (3/3)-55 12.15. Mic, USB and CD Interface Circuit -56 12.16. SMPS Circuit (1/2)-57 12.17. SMPS Circuit (2/2)-58 13 Printed Circuit Board -59 13.1. Main P.C.B. (Side A)-59 13.2. Main P.C.B. (Side B)-60 13.3. Panel, Mi

11、c and USB P.C.B.-61 13.4. SMPS and CD Interface P.C.B.-62 14 Voltage and Waveform Measurement -63 14.1. Voltage Measurement-63 15 Exploded View and Replacement Parts List-69 15.1. Cabinet Parts Location 1-69 15.2. Cabinet Parts Location 2-70 15.3. Cabinet Parts Location 3-71 15.4. Packaging-72 15.5.

12、 Mechanical Replacement Part List -73 15.6. Electrical Replacement Part List -75 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 parts are marked by in the Schema

13、tic 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 without permission of manufacturer.

14、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 electrical shocks. It will also prote

15、ct 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, see to it that all the protectiv

16、e 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 and connect a jumper between the

17、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 chassis, the reading should be

18、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 resistor, in parallel with a 0.

19、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 metallic part, and measure the volt

20、age 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 current must not exceed 1/2 mil

21、liamp. 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 Disconnect AC power to discharge

22、AC capacitor (in SMPS P.C.B.) 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 power gradually using a variac, to

23、 avoid overcurrent. Current consumption at AC 120 V, 60 Hz in FM Tuner at volume minimum should be 500mA (PN). Current consumption at AC 220240 V, 50/60 Hz in FM Tuner at volume minimum should be 500mA (PS). 1.3.Protection Circuitry The protection circuitry may have operated if either of the followi

24、ng 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 less th

25、an 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 unit will

26、 not operate unless the power is first turned off and then on again. 5 1.4.Safety Parts Information 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 CD/RADIO/AUX ke

27、ys 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 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

28、 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 sec or more. The display will show upon entering into this mode for 2 sec. FL Display Key Operation Front Key Item DescriptionMode Name 14 6.3.Doctor Mode Table 6.3.1.Doctor Mode

29、Table 1 FL Display Key Operation Front Key Item DescriptionMode Name Doctor Mode EEPROM checksum check :edoMDCnIedoMro t c oDot n i retneoT 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 /I on main unit or remote control Disp

30、laying of 1. Year Develop. 2. Model Type. 3. ROM Type. 4. Firmware Version. (Display 1) 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. (Decimal)1234 15 6.3.2.Doctor Mode Table 2 FL Display Key O

31、peration Front Key Item DescriptionMode Name Volume Setting Check FL Display Check To check 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

32、 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 the open & close operation of the CD

33、Mechanism Unit. The counter will increment by one. When reach 99999999 will change to 00000000 Cancellation Display 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 in

34、crement 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 the traverse unit operation & open/close operation of the mechanism. In this mode, ensure the CD is in the main unit. In Docto

35、r Mode: 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

36、. In Doctor Mode: 1. Press 10 1 5 button on the remote control. 16 6.4.Self-Diagnostic Mode 6.5.Self-Diagnostic Error Code Table Self-Diagnostic Function (Refer Section 6.4. Self-Diagnostic Mode) provides information on any problems occurring for the unit and its respective components by displaying

37、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 FL Display Key Operation Front Key Item DescriptionMode Name Self Diagnost

38、ic Mode edomDC t c e l eS:1petSgn i kcehcc i t songa i df l esot n i retneoT (Ensure no disc is inserted). To exit, press I on main unit or remote control. Step 2: Press & hold button follow by / / on main unit for 2 seconds. Error Code Information System will perform a check on any unusual/error co

39、de from the memory ,edomc i t songa i df l esnI:1petS:e l pmaxE Press on main unit. Delete error code To clear the stored in memory (EEPROM IC) Step 1: In self diagnostic mode, Press OK on remote control for 5 seconds. To exit, press I on main unit or remote control. / FL Display Key Operation Front

40、 Key Item DescriptionMode Name Error Code F61 Power Amp IC output abnormal. Upon power on, PCONT=HIGH, DC_DET_AMP after checking LSI. Error Code F76 Power Amp IC output abnormal. DC_DET_PWR. Error Code F61-76 Diagnosis Contents: Power Amp IC output abnormal. Both DCDET (NG). Press on main unit for next error. Press on main unit for next error. Press on main unit for ne