Read Panasonic SA-AKX200PN / SA-AKX200PS / SA-AKX400PN / SA-AKX400PS Service Manual online
PSG1502007CE
CD Stereo System
Model No.
SA-AKX200PN
SA-AKX200PS
SA-AKX400PN
SA-AKX400PS
SA-AKX200PS
SA-AKX400PN
SA-AKX400PS
Product Color: (K)...Black Type
TABLE OF CONTENTS
PAGE
PAGE
1 Safety Precautions----------------------------------------------- 3
1.1. General Guidelines---------------------------------------- 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
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 Electrostaticy Sensitive (ES) Devices---------- 8
2.2. Precaution of Laser Diode------------------------------- 8
2.3. General description about Lead Free Solder
2.3. General 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 Location of Controls and Components------------------ 13
5.1. Remote Control Key Button Operation ------------- 13
5.2. Main Unit Key Button Operation---------------------- 14
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
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:
O
CD Mechanism Unit (BRS12C) , Order No. PSG1303059AE
O
Speaker system SB-AKX200PNK, Order No. PSG1502001CE
O
Speaker system SB-AKX400PNK, Order No. PSG1502002CE
2
6.5. Self-Diagnostic Error Code Table -------------------- 19
7 Troubleshooting Guide---------------------------------------- 21
8 Disassembly and Assembly Instructions --------------- 22
8 Disassembly and Assembly Instructions --------------- 22
8.1. Types 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 of USB P.C.B. --------------------------- 26
8.8. Disassembly of Music Port P.C.B. (For
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 of USB P.C.B. --------------------------- 26
8.8. Disassembly of Music Port P.C.B. (For
AKX400) ---------------------------------------------------- 26
8.9. Disassembly of Rear Panel---------------------------- 26
8.10. Disassembly of Main P.C.B. --------------------------- 27
8.11. Disassembly of SMPS Module ----------------------- 28
8.12. Disassembly of CD Mechanism Unit ---------------- 28
8.13. Disassembly of CD Interface P.C.B.----------------- 30
8.13. Disassembly of CD Interface P.C.B.----------------- 30
9 Service Position ------------------------------------------------- 31
9.1. Checking of Panel P.C.B. and Main P.C.B. -------- 31
9.2. Checking of SMPS Module --------------------------- 31
9.2. Checking of SMPS Module --------------------------- 31
10 Block Diagram --------------------------------------------------- 33
10.1. System Control ------------------------------------------- 33
10.2. Audio -------------------------------------------------------- 35
10.3. Power Supply --------------------------------------------- 36
10.2. Audio -------------------------------------------------------- 35
10.3. Power Supply --------------------------------------------- 36
11 Wiring Connection Diagram --------------------------------- 38
12 Schematic Diagram--------------------------------------------- 39
12.1. Schematic Diagram Notes ----------------------------- 39
12.2. Main (Micon) Circuit (1/3) ------------------------------ 41
12.3. Main (Micon) Circuit (2/3) ------------------------------ 42
12.4. Main (Micon) Circuit (3/3) ------------------------------ 43
12.5. Main (USB) Circuit --------------------------------------- 44
12.6. Main (Tuner AUX) Circuit ------------------------------ 45
12.7. Main (DSP Bluetooth) Circuit ------------------------- 46
12.8. Main (Damp) Circuit ------------------------------------- 47
12.9. Main (Voltage Regulator) Circuit --------------------- 48
12.2. Main (Micon) Circuit (1/3) ------------------------------ 41
12.3. Main (Micon) Circuit (2/3) ------------------------------ 42
12.4. Main (Micon) Circuit (3/3) ------------------------------ 43
12.5. Main (USB) Circuit --------------------------------------- 44
12.6. Main (Tuner AUX) Circuit ------------------------------ 45
12.7. Main (DSP Bluetooth) Circuit ------------------------- 46
12.8. Main (Damp) Circuit ------------------------------------- 47
12.9. Main (Voltage Regulator) Circuit --------------------- 48
12.10. Panel Circuit (For SA-AKX200PN/PS)-------------- 49
12.11. Panel Circuit (For SA-AKX400PN/PS)-------------- 50
12.12. USB, CD Interface and Music Port Circuit --------- 51
13 Printed Circuit Board ------------------------------------------ 52
13.1. Main P.C.B. ------------------------------------------------ 52
13.2. Panel, USB P.C.B. (For AKX200PN/PS) and
13.2. Panel, USB P.C.B. (For AKX200PN/PS) and
CD Interface P.C.B. (For AKX200PN/PS,
AKX400PN/PS) ------------------------------------------- 53
AKX400PN/PS) ------------------------------------------- 53
13.3. Panel, USB and Music Port P.C.B. (For
AKX400PN/PS) ------------------------------------------- 54
14 Voltage and Waveform Measurement -------------------- 55
14.1. Voltage Measurement----------------------------------- 55
15 Exploded View and Replacement Parts List ----------- 59
15.1. Cabinet Parts Location 1 ------------------------------- 59
15.2. Cabinet Parts Location 2 ------------------------------- 60
15.3. Packaging (For SC-AKX200PN/PS) ---------------- 61
15.4. Packaging (For SC-AKX400PN/PS) ---------------- 62
15.5. Mechanical Replacement Part List ------------------ 63
15.6. Electrical Replacement Parts List -------------------- 65
15.2. Cabinet Parts Location 2 ------------------------------- 60
15.3. Packaging (For SC-AKX200PN/PS) ---------------- 61
15.4. Packaging (For SC-AKX400PN/PS) ---------------- 62
15.5. Mechanical Replacement Part List ------------------ 63
15.6. Electrical Replacement Parts List -------------------- 65
3
1 Safety 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 critical parts
should be replaced with manufacturer’s specified parts to prevent X-RADIATION, shock, fire, or other hazards. Do not modify
the original design without permission of manufacturer.
Schematic Diagrams, Circuit Board Layout, Exploded Views and Replacement Parts List. It is essential that these critical parts
should be replaced with manufacturer’s 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 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.
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 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 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 on
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 between 1M
chassis, the reading should be between 1M
Ω
and 5.2M
Ω
.
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
2. Connect a 1.5k
Ω
, 10 watts resistor, in parallel with a 0.15
μ
F 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 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)
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 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 and rechecked before it is
returned to the customer.
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
4
1.2.
Before Repair and Adjustment
Disconnect AC power to discharge AC capacitor (in SMPS Module) as indicate below diagram through a 10
Ω
, 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 120 V, 60 Hz in Power ON, FM Tuner at volume minimal mode should be ~ 350 mA (AKX200PN).
Current consumption at AC 220~240 V, 50/60 Hz in Power ON, FM Tuner at volume minimal mode should be ~ 350 mA
(AKX200PS).
Current consumption at AC 120 V, 60 Hz in Power ON, FM Tuner at volume minimal mode should be ~ 310 mA (AKX400PN).
Current consumption at AC 220~240 V, 50/60 Hz in Power ON, FM Tuner at volume minimal mode should be ~ 310 mA
(AKX400PS).
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 220~240 V, 50/60 Hz in Power ON, FM Tuner at volume minimal mode should be ~ 350 mA
(AKX200PS).
Current consumption at AC 120 V, 60 Hz in Power ON, FM Tuner at volume minimal mode should be ~ 310 mA (AKX400PN).
Current consumption at AC 220~240 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 following conditions are noticed:
• No sound is heard when the power is turned on.
• Sound stops during a performance.
• 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 impedance of the amplifier are used.
If this occurs, follow the procedure outlines below:
“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:
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.
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.
When the protection circuitry functions, the unit 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) N0AD1GK00003 (For SA-AKX200PSK)
2) N0AB1GL00001 (For SA-AKX400PNK)
4) N0AD1GL00001 (For SA-AKX400PSK)
no. for the SMPS Module
1) N0AB1GK00001 (For SA-AKX200PNK)
3) N0AD1GK00003 (For SA-AKX200PSK)
2) N0AB1GL00001 (For SA-AKX400PNK)
4) N0AD1GL00001 (For SA-AKX400PSK)