Read Panasonic SC-HC40EG / SC-HC40EP Service Manual online
PSG1003037CE
Compact Stereo System
Model No.
SC-HC40EG
SC-HC40EP
Product Color: (K)...Black Type
(N)...Gold Type (SC-HC40EG only)
TABLE OF CONTENTS
PAGE
PAGE
1 Safety Precautions----------------------------------------------- 3
1.1. General Guidelines---------------------------------------- 3
1.2. Before Repair and Adjustment ------------------------- 4
1.3. Caution For Fuse Replacement------------------------ 4
1.4. Protection Circuitry ---------------------------------------- 4
1.5. Safety Part Information----------------------------------- 4
1.2. Before Repair and Adjustment ------------------------- 4
1.3. Caution For Fuse Replacement------------------------ 4
1.4. Protection Circuitry ---------------------------------------- 4
1.5. Safety Part Information----------------------------------- 4
2 Warning -------------------------------------------------------------- 5
2.1. Prevention of Electro Static Discharge (ESD)
to Electrostaticy Sensitive (ES) Devices---------- 5
2.2. Precaution of Laser Diode------------------------------- 6
2.3. Service caution based on Legal restrictions -------- 7
2.4. Handling Precaution for Traverse Unit --------------- 8
2.3. Service caution based on Legal restrictions -------- 7
2.4. Handling Precaution for Traverse Unit --------------- 8
3 Service Navigation ----------------------------------------------- 9
3.1. Service Information --------------------------------------- 9
4 Specifications ---------------------------------------------------- 10
5 Location of Controls and Components------------------ 11
5 Location of Controls and Components------------------ 11
5.1. Main Unit & Remote Control Key Button
Operations ------------------------------------------------- 11
5.2. FM/AM Connections------------------------------------- 12
5.3. Disc operations ------------------------------------------- 13
5.4. iPod/iPhone operation ---------------------------------- 15
5.5. Bluetooth operation-------------------------------------- 16
5.6. USB operation -------------------------------------------- 17
5.3. Disc operations ------------------------------------------- 13
5.4. iPod/iPhone operation ---------------------------------- 15
5.5. Bluetooth operation-------------------------------------- 16
5.6. USB operation -------------------------------------------- 17
6 Operating Instructions ---------------------------------------- 18
6.1. CD Door Assembly Jam-------------------------------- 18
7 Self Diagnostic and Doctor Mode Setting -------------- 20
7.1. Self Diagnostic Mode ----------------------------------- 20
7.2. Self Diagnostic Error Code ---------------------------- 21
7.2. Self Diagnostic Error Code ---------------------------- 21
2
7.3. Doctor Mode----------------------------------------------- 22
7.4. Sales Demonstration Lock Function Mode -------- 25
7.4. Sales Demonstration Lock Function Mode -------- 25
8 Service Fixture & Tools --------------------------------------- 26
9 Disassembly and Assembly Instructions --------------- 27
9 Disassembly and Assembly Instructions --------------- 27
9.1. Disassembly flow chart --------------------------------- 28
9.2. Types of Screws ------------------------------------------ 29
9.3. Main Parts Location Diagram ------------------------- 29
9.4. Disassembly of Stand Unit ----------------------------- 30
9.5. Replacement of CD Door Assembly ---------------- 30
9.6. Disassembly of Net Frame Assembly--------------- 32
9.7. Disassembly of Front Panel Block ------------------- 34
9.8. Disassembly of Top Ornament Unit ----------------- 35
9.9. Disassembly of Button P.C.B. ------------------------- 36
9.2. Types of Screws ------------------------------------------ 29
9.3. Main Parts Location Diagram ------------------------- 29
9.4. Disassembly of Stand Unit ----------------------------- 30
9.5. Replacement of CD Door Assembly ---------------- 30
9.6. Disassembly of Net Frame Assembly--------------- 32
9.7. Disassembly of Front Panel Block ------------------- 34
9.8. Disassembly of Top Ornament Unit ----------------- 35
9.9. Disassembly of Button P.C.B. ------------------------- 36
9.10. Disassembly of Passive Radiator (SP5).----------- 36
9.11. Disassembly of Passive Radiator (SP6).----------- 37
9.12. Disassembly of Front Speaker (SP1). -------------- 37
9.13. Disassembly of Front Speaker (SP2). -------------- 39
9.14. Disassembly of Passive Radiator (SP3).----------- 41
9.15. Disassembly of Passive Radiator (SP4).----------- 41
9.16. Disassembly of Traverse Unit. ------------------------ 42
9.17. Disassembly of Traverse Cover & Traverse
9.13. Disassembly of Front Speaker (SP2). -------------- 39
9.14. Disassembly of Passive Radiator (SP3).----------- 41
9.15. Disassembly of Passive Radiator (SP4).----------- 41
9.16. Disassembly of Traverse Unit. ------------------------ 42
9.17. Disassembly of Traverse Cover & Traverse
Assembly. -------------------------------------------------- 42
9.18. Disassembly of CD Servo P.C.B.--------------------- 43
9.19. Disassembly of USB P.C.B. --------------------------- 44
9.20. Disassembly of USB Lid-------------------------------- 45
9.21. Disassembly of Headphone/AUX P.C.B. ----------- 46
9.22. Disassembly of PCB Block ---------------------------- 47
9.23. Disassembly of SMPS P.C.B. ------------------------- 49
9.24. Replacement of Switching Regulator IC
9.19. Disassembly of USB P.C.B. --------------------------- 44
9.20. Disassembly of USB Lid-------------------------------- 45
9.21. Disassembly of Headphone/AUX P.C.B. ----------- 46
9.22. Disassembly of PCB Block ---------------------------- 47
9.23. Disassembly of SMPS P.C.B. ------------------------- 49
9.24. Replacement of Switching Regulator IC
(IC5701) ---------------------------------------------------- 51
9.25. Replacement of Voltage Regulator IC
(IC2910) ---------------------------------------------------- 52
9.26. Replacement of Diode (D5802) ---------------------- 54
9.27. Disassembly of Horizontal Main P.C.B. and
9.27. Disassembly of Horizontal Main P.C.B. and
Vertical Main P.C.B.-------------------------------------- 55
9.28. Replacement of Power Amplifier IC (IC1)---------- 55
9.29. Disassembly of Bluetooth P.C.B. --------------------- 57
9.30. Disassembly of Tuner P.C.B. -------------------------- 57
9.31. Disassembly of Fan Unit ------------------------------- 58
9.32. Disassembly of Panel P.C.B. -------------------------- 59
9.33. Disassembly of IR P.C.B. and iPod/iPhone
9.29. Disassembly of Bluetooth P.C.B. --------------------- 57
9.30. Disassembly of Tuner P.C.B. -------------------------- 57
9.31. Disassembly of Fan Unit ------------------------------- 58
9.32. Disassembly of Panel P.C.B. -------------------------- 59
9.33. Disassembly of IR P.C.B. and iPod/iPhone
Switch P.C.B. ---------------------------------------------- 60
9.34. Disassembly of Motor P.C.B., Door Switch
P.C.B. and Interlock Switch P.C.B.------------------- 61
9.35. Disassembly of Motor Assembly --------------------- 64
9.36. Disassembly of iPod/iPhone P.C.B. ----------------- 65
9.36. Disassembly of iPod/iPhone P.C.B. ----------------- 65
10 Service Position ------------------------------------------------- 69
10.1. Checking & Repairing of Panel P.C.B. -------------- 69
10.2. Checking & Repairing of CD Servo P.C.B.--------- 69
10.3. Checking & Repairing of SMPS P.C.B. ------------- 70
10.4. Checking & Repairing of Horizontal Main
10.2. Checking & Repairing of CD Servo P.C.B.--------- 69
10.3. Checking & Repairing of SMPS P.C.B. ------------- 70
10.4. Checking & Repairing of Horizontal Main
P.C.B.-------------------------------------------------------- 72
10.5. Checking & Repairing of Vertical Main P.C.B.
(Side A) ----------------------------------------------------- 73
10.6. Checking & Repairing of Vertical Main P.C.B.
(Side B) ----------------------------------------------------- 75
10.7. Checking & Repairing of USB P.C.B. --------------- 76
11 Voltage Measurement & Waveform Chart--------------- 78
11.1. CD SERVO P.C.B. --------------------------------------- 78
11.2. VERTICAL MAIN P.C.B. (1/3)------------------------- 79
11.3. VERTICAL MAIN P.C.B. (2/3)------------------------- 80
11.2. VERTICAL MAIN P.C.B. (1/3)------------------------- 79
11.3. VERTICAL MAIN P.C.B. (2/3)------------------------- 80
11.4. VERTICAL MAIN P.C.B. (3/3) ------------------------ 81
11.5. HORIZONTAL MAIN P.C.B. --------------------------- 81
11.6. PANEL P.C.B.--------------------------------------------- 82
11.7. BUTTON P.C.B. ------------------------------------------ 82
11.8. TUNER P.C.B. -------------------------------------------- 82
11.9. IR P.C.B. --------------------------------------------------- 82
11.5. HORIZONTAL MAIN P.C.B. --------------------------- 81
11.6. PANEL P.C.B.--------------------------------------------- 82
11.7. BUTTON P.C.B. ------------------------------------------ 82
11.8. TUNER P.C.B. -------------------------------------------- 82
11.9. IR P.C.B. --------------------------------------------------- 82
11.10. SMPS P.C.B.---------------------------------------------- 83
11.11. USB P.C.B. ------------------------------------------------ 83
11.12. Waveform Chart------------------------------------------ 84
12 Illustration of IC’s, Transistors and Diodes------------ 85
13 Overall Simplified Block-------------------------------------- 87
14 Block Diagram --------------------------------------------------- 89
13 Overall Simplified Block-------------------------------------- 87
14 Block Diagram --------------------------------------------------- 89
14.1. SERVO/SYSTEM CONTROL(1/2) BLOCK
DIAGRAM ------------------------------------------------- 89
14.2. SERVO/SYSTEM CONTROL(2/2) BLOCK
DIAGRAM ------------------------------------------------- 90
14.3. IC TERMINAL CHART (SERVO/SYSTEM
CONTROL)------------------------------------------------ 91
14.4. BLUETOOTH BLOCK DIAGRAM ------------------- 92
14.5. AUDIO BLOCK DIAGRAM ---------------------------- 93
14.6. POWER SUPPLY(1/2) BLOCK DIAGRAM-------- 94
14.7. POWER SUPPLY(2/2) BLOCK DIAGRAM-------- 95
14.5. AUDIO BLOCK DIAGRAM ---------------------------- 93
14.6. POWER SUPPLY(1/2) BLOCK DIAGRAM-------- 94
14.7. POWER SUPPLY(2/2) BLOCK DIAGRAM-------- 95
15 Wiring Connection Diagram -------------------------------- 96
16 Schematic Diagram Notes ----------------------------------- 97
17 Schematic Diagram -------------------------------------------- 99
16 Schematic Diagram Notes ----------------------------------- 97
17 Schematic Diagram -------------------------------------------- 99
17.1. CD SERVO CIRCUIT----------------------------------- 99
17.2. VERTICAL MAIN CIRCUIT (1/4) ------------------- 100
17.3. VERTICAL MAIN CIRCUIT (2/4) ------------------- 101
17.4. VERTICAL MAIN CIRCUIT (3/4) ------------------- 102
17.5. VERTICAL MAIN CIRCUIT (4/4) ------------------- 103
17.6. HORIZONTAL MAIN CIRCUIT ---------------------- 104
17.7. PANEL & BUTTON CIRCUIT ------------------------ 105
17.8. TUNER, HEADPHONE/AUX, IR & MOTOR
17.2. VERTICAL MAIN CIRCUIT (1/4) ------------------- 100
17.3. VERTICAL MAIN CIRCUIT (2/4) ------------------- 101
17.4. VERTICAL MAIN CIRCUIT (3/4) ------------------- 102
17.5. VERTICAL MAIN CIRCUIT (4/4) ------------------- 103
17.6. HORIZONTAL MAIN CIRCUIT ---------------------- 104
17.7. PANEL & BUTTON CIRCUIT ------------------------ 105
17.8. TUNER, HEADPHONE/AUX, IR & MOTOR
CIRCUIT -------------------------------------------------- 106
17.9. iPod/iPhone, iPod/iPhone SWITCH, DOOR
SWITCH & INTERLOCK SWITCH CIRCUIT ---- 107
17.10. SMPS CIRCUIT ----------------------------------------- 108
17.11. USB CIRCUIT ------------------------------------------- 109
18 Printed Circuit Board----------------------------------------- 110
18.1. CD SERVO P.C.B.-------------------------------------- 110
18.2. VERTICAL MAIN P.C.B. ------------------------------ 111
18.3. HORIZONTAL MAIN P.C.B. -------------------------- 112
18.4. PANEL, BUTTON, HEADPHONE/AUX &
18.2. VERTICAL MAIN P.C.B. ------------------------------ 111
18.3. HORIZONTAL MAIN P.C.B. -------------------------- 112
18.4. PANEL, BUTTON, HEADPHONE/AUX &
MOTOR P.C.B. ------------------------------------------ 113
18.5. TUNER, IR, iPod/iPhone & iPod/iPhone
SWITCH P.C.B. ----------------------------------------- 114
18.6. DOOR SWITCH, INTERLOCK SWITCH &
SMPS P.C.B.--------------------------------------------- 115
18.7. USB P.C.B. ----------------------------------------------- 116
19 Terminal Function of IC’s ----------------------------------- 117
19.1. IC801 (RFKWMHC30-K) MICRO
PROCESSOR IC --------------------------------------- 117
19.2. IC7001 (MN6627954AMA) IC SERVO
PROCESSOR ------------------------------------------- 118
19.3. IC7002 (BA5948FPE2) IC 4CH Drive ------------- 119
20 Exploded View and Replacement Parts List---------- 121
20.1. Exploded View and Mechanical replacement
Parts List -------------------------------------------------- 121
20.2. Electrical Replacement Parts List ------------------ 127
3
1 Safety Precautions
1.1.
General Guidelines
1. 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.
2. After servicing, see to it that all the protective devices such as insulation barriers, insulation papers shields are properly
installed.
3. After servicing, carry out 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 5.2MΩ. When the exposed metal does not have a return path to the chas-
sis, 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 0.15μF capacitors, between each exposed metallic part on the set and a
good earth ground such as a water pipe, as shown in Figure 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
4
1.2.
Before Repair and Adjustment
Disconnect AC power, discharge unit AC Capacitors as such C5700, C5701, C5702, C5706, C5708 and C5709 through a 10W, 1W
resistor to ground.
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.
resistor to ground.
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 220V - 240V, at 50Hz in NO SIGNAL mode (at volume min in FM Tuner mode) should be ~200 mA.
1.3.
Caution For Fuse Replacement
1.4.
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.
1.5.
Safety Part 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 & Replacement Parts List. It is essential that these
critical parts should be replaced with manufacturer’s specified parts to prevent shock, fire or other hazards. Do not modify the
original design without permission of manufacturer.
critical parts should be replaced with manufacturer’s specified parts to prevent shock, fire or other hazards. Do not modify the
original design without permission of manufacturer.
Table 1
Safety
Ref. No.
Part No.
Part Name & Description
Remarks
55
RYKX1026A-K
REAR CABINET
20
RGNX1043A-K
NAME PLATE LABEL
EP-K
20
RGNX1043M-K
NAME PLATE LABEL
EG-K,EG-N
401
RAE0165T-V
TRAVERSE UNIT ASS'Y
A2
K2CQ2CA00007
AC CORD
A3
RQTX1076-R
O/I BOOK (En/Po/Cz/Ru/Ur)
EP-K
A3
RQTX1079-D
O/I BOOK (Ge/It/Fr/Sp/Du/Da/Sw)
EG-K,EG-N
T1000
G4D1A0000117
SWITCHING TRANSFORMER
T5701
ETS28BH186AC
TRANSFORMER
T5751
ETS19AB221AG
SUB TRANSFORMER
P5701
K2AA2B000011
AC INLET
C5700
F1BAF1020020
1000pF
C5701
ECQU2A334MLA
0.33uF
C5702
ECQU2A104MLC
0.1uF
C5706
F1BAF1020020
1000pF
C5708
F1BAF1020020
1000pF
C5709
F1BAF1020020
1000pF
L5701
G0B453G00003
LINE FILTER
F1
K5D162BK0005
FUSE
RY5701
K6B1AEA00003
RELAY
PC5720
B3PBA0000402
PHOTO COUPLER
DZ5701
ERZVA5Z471
ZNR
FP1000
K5H7512A0010
PROTECTOR
TH5701
D4CC11040013
THERMISTOR
TH5702
D4CAC8R00002
THERMISTOR
PCB14
REPX0820BA
SMPS P.C.B.
(RTL)
