Panasonic SC-HTB10EB / SC-HTB10EG Service Manual ▷ View online
PSG1005027CE
Home Theater Audio System
Model No.
SC-HTB10EB
SC-HTB10EG
SC-HTB10EG
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. Caution For Fuse Replacement------------------------ 4
1.4. Protection Circuitry ---------------------------------------- 4
1.5. Safety Part Information----------------------------------- 5
1.6. Caution for AC Cord (For EB only) ------------------- 6
1.7. Safety Instation Instructions ------------------------- 7
1.2. Before Repair and Adjustment ------------------------- 4
1.3. Caution For Fuse Replacement------------------------ 4
1.4. Protection Circuitry ---------------------------------------- 4
1.5. Safety Part Information----------------------------------- 5
1.6. Caution for AC Cord (For EB only) ------------------- 6
1.7. Safety Instation Instructions ------------------------- 7
2 Warning -------------------------------------------------------------- 8
2.1. Prevention of Electro Static Discharge (ESD)
to Electrostaticy Sensitive (ES) Devices---------- 8
2.2. Service caution based on Legal restrictions -------- 9
3 Service Navigation ----------------------------------------------10
3.1. Service Information --------------------------------------10
4 Specifications ----------------------------------------------------11
5 Location of Controls and Components ------------------12
5 Location of Controls and Components ------------------12
5.1. Main Unit Key Button Operations---------------------12
5.2. Remote Control Key Buttons Operation------------ 13
5.3. Audio Information ---------------------------------------- 13
5.3. Audio Information ---------------------------------------- 13
6 Self diagnostic and special mode setting -------------- 14
6.1. Automaticy Displayed Error Codes --------------- 14
6.2. Service Mode --------------------------------------------- 15
6.2. Service Mode --------------------------------------------- 15
7 Service Fixture & Tools --------------------------------------- 18
8 Disassembly and Assembly Instructions--------------- 19
8 Disassembly and Assembly Instructions--------------- 19
8.1. Disassembly flow chart --------------------------------- 20
8.2. Main Parts Location Diagram ------------------------- 20
8.3. Disassembly of Back Cabinet Assembly ---------- 21
8.4. Disassembly of Front Speaker L (SP1) ------------ 27
8.5. Disassembly of Front Speaker R (SP2) ----------- 28
8.6. Disassembly of Subwoofer Speaker Front
8.2. Main Parts Location Diagram ------------------------- 20
8.3. Disassembly of Back Cabinet Assembly ---------- 21
8.4. Disassembly of Front Speaker L (SP1) ------------ 27
8.5. Disassembly of Front Speaker R (SP2) ----------- 28
8.6. Disassembly of Subwoofer Speaker Front
(SP3) ------------------------------------------------------- 29
8.7. Disassembly of Subwoofer Speaker Rear
(SP4) ------------------------------------------------------- 30
8.8. Disassembly of Main Chassis Assembly ---------- 31
2
8.9. Disassembly of LED P.C.B. and Panel Tact
Switch P.C.B. --------------------------------------------- 34
8.10. Disassembly of AC Inlet P.C.B. ---------------------- 36
8.11. Disassembly of Main P.C.B. -------------------------- 38
8.12. Disassembly of SMPS P.C.B. ------------------------ 41
8.13. Replacement of Switch Regulator IC (IC5701)
8.13. Replacement of Switch Regulator IC (IC5701)
---------------------------------------------------------------- 44
8.14. Replacement of Rectifier Diode (D5802) ---------- 46
8.15. Disassembly of HDMI P.C.B. ------------------------- 48
8.15. Disassembly of HDMI P.C.B. ------------------------- 48
9 Service Position ------------------------------------------------- 51
9.1. Checking and Repairing of Main P.C.B. (Side
A) ------------------------------------------------------------- 51
9.2. Checking and Repairing of Main P.C.B. (Side
B) ------------------------------------------------------------- 52
9.3. Checking and Repairing of SMPS P.C.B. --------- 53
9.4. Checking and Repairing of HDMI P.C.B. (Side
9.4. Checking and Repairing of HDMI P.C.B. (Side
A) ------------------------------------------------------------ 55
9.5. Checking and Repairing of HDMI P.C.B. (Side
B) ------------------------------------------------------------ 56
10 Voltage Measurement & Waveform Chart--------------- 57
10.1. HDMI P.C.B. (1/5) ---------------------------------------- 57
10.2. HDMI P.C.B. (2/5) ---------------------------------------- 58
10.3. HDMI P.C.B. (3/5) ---------------------------------------- 59
10.4. HDMI P.C.B. (4/5) ---------------------------------------- 60
10.5. HDMI P.C.B. (5/5) ---------------------------------------- 61
10.6. MAIN P.C.B. (1/3) ---------------------------------------- 62
10.7. MAIN P.C.B. (2/3) ---------------------------------------- 63
10.8. MAIN P.C.B. (3/3) ---------------------------------------- 64
10.9. LED P.C.B. ------------------------------------------------- 64
10.2. HDMI P.C.B. (2/5) ---------------------------------------- 58
10.3. HDMI P.C.B. (3/5) ---------------------------------------- 59
10.4. HDMI P.C.B. (4/5) ---------------------------------------- 60
10.5. HDMI P.C.B. (5/5) ---------------------------------------- 61
10.6. MAIN P.C.B. (1/3) ---------------------------------------- 62
10.7. MAIN P.C.B. (2/3) ---------------------------------------- 63
10.8. MAIN P.C.B. (3/3) ---------------------------------------- 64
10.9. LED P.C.B. ------------------------------------------------- 64
10.10. SMPS P.C.B. ---------------------------------------------- 64
10.11. Waveform Chart (1/2) ----------------------------------- 65
10.12. Waveform Chart (2/2) ----------------------------------- 66
11 Illustration of IC’s, Transistors and Diodes ------------ 67
12 Overall Simplified Block -------------------------------------- 68
13 Block Diagram --------------------------------------------------- 69
13 Block Diagram --------------------------------------------------- 69
13.1. SYSTEM CONTROL BLOCK DIAGRAM ---------- 69
13.2. HDMI BLOCK DIAGRAM ------------------------------ 70
13.3. AUDIO (1/2) BLOCK DIAGRAM --------------------- 71
13.4. AUDIO (2/2) BLOCK DIAGRAM --------------------- 72
13.5. IC TERMINAL CHART (HDMI/AUDIO) ------------- 73
13.6. POWER SUPPLY (1/2) BLOCK DIAGRAM ------- 74
13.7. POWER SUPPLY (2/2) BLOCK DIAGRAM ------- 75
13.2. HDMI BLOCK DIAGRAM ------------------------------ 70
13.3. AUDIO (1/2) BLOCK DIAGRAM --------------------- 71
13.4. AUDIO (2/2) BLOCK DIAGRAM --------------------- 72
13.5. IC TERMINAL CHART (HDMI/AUDIO) ------------- 73
13.6. POWER SUPPLY (1/2) BLOCK DIAGRAM ------- 74
13.7. POWER SUPPLY (2/2) BLOCK DIAGRAM ------- 75
14 Wiring Connection Diagram --------------------------------- 77
15 Schematic Diagram Notes ----------------------------------- 79
16 Schematic Diagram--------------------------------------------- 81
15 Schematic Diagram Notes ----------------------------------- 79
16 Schematic Diagram--------------------------------------------- 81
16.1. HDMI CIRCUIT (1/6) ------------------------------------ 81
16.2. HDMI CIRCUIT (2/6) ------------------------------------ 82
16.3. HDMI CIRCUIT (3/6) ------------------------------------ 83
16.4. HDMI CIRCUIT (4/6) ------------------------------------ 84
16.5. HDMI CIRCUIT (5/6) ------------------------------------ 85
16.6. HDMI CIRCUIT (6/6) ------------------------------------ 86
16.7. MAIN CIRCUIT (1/4) ------------------------------------ 87
16.8. MAIN CIRCUIT (2/4) ------------------------------------ 88
16.9. MAIN CIRCUIT (3/4) ------------------------------------ 89
16.2. HDMI CIRCUIT (2/6) ------------------------------------ 82
16.3. HDMI CIRCUIT (3/6) ------------------------------------ 83
16.4. HDMI CIRCUIT (4/6) ------------------------------------ 84
16.5. HDMI CIRCUIT (5/6) ------------------------------------ 85
16.6. HDMI CIRCUIT (6/6) ------------------------------------ 86
16.7. MAIN CIRCUIT (1/4) ------------------------------------ 87
16.8. MAIN CIRCUIT (2/4) ------------------------------------ 88
16.9. MAIN CIRCUIT (3/4) ------------------------------------ 89
16.10. MAIN CIRCUIT (4/4) ------------------------------------ 90
16.11. LED CIRCUIT, PANEL TACT SWITCH
CIRCUIT, AC INLET CIRCUIT------------------------ 91
16.12. SMPS CIRCUIT (1/2) ----------------------------------- 92
16.13. SMPS CIRCUIT (2/2) ----------------------------------- 93
16.13. SMPS CIRCUIT (2/2) ----------------------------------- 93
17 Printed Circuit Board ------------------------------------------ 95
17.1. HDMI P.C.B. (SIDE A) ---------------------------------- 95
17.2. HDMI P.C.B. (SIDE B) --------------------------------- 96
17.3. MAIN P.C.B. (SIDE A) ---------------------------------- 97
17.4. MAIN P.C.B. (SIDE B) ---------------------------------- 98
17.5. LED P.C.B. / PANEL TACT SWITCH P.C.B. ------ 99
17.6. AC INLET P.C.B. / SMPS P.C.B.--------------------100
17.3. MAIN P.C.B. (SIDE A) ---------------------------------- 97
17.4. MAIN P.C.B. (SIDE B) ---------------------------------- 98
17.5. LED P.C.B. / PANEL TACT SWITCH P.C.B. ------ 99
17.6. AC INLET P.C.B. / SMPS P.C.B.--------------------100
18 Terminal Function of IC’s -----------------------------------101
18.1. IC604 (RFKWMHTB10PA) IC MICRO
PROCESSOR -------------------------------------------101
18.2. IC2002 (RFKWMHTB10PB) IC MICRO
PROCESSOR -------------------------------------------102
19 Exploded View and Replacement Parts List----------103
19.1. Exploded View and Mechanical replacement
Parts List --------------------------------------------------103
19.2. Electrical Replacement Parts List ------------------107
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, ensure that all the protective devices such as insulation barriers, insulation papers shields are properly
installed.
3. After servicing, check for leakage current checks to prevent 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. Using an ohmmeter measure the resistance value, between the jumpered AC plug and each exposed metallic cabinet part on
2. Using an ohmmeter measure the resistance value, 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 5.2Ω. 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 0.15μF 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. should the measurement is outside of
the limits specified, there is a possibility of a shock hazard, and the equipment should be repaired and re-checked before it is
returned to the customer.
the limits specified, there is a possibility of a shock hazard, and the equipment should be repaired and re-checked before it is
returned to the customer.
4
1.2.
Before Repair and Adjustment
Disconnect AC power, discharge unit AC Capacitors as such C5700, C5701, C5702, C5703, C5704, C5706, C5708 through a 10
Ω,
1W resistor to ground.
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.
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 220-240 V, at 50 Hz in NO SIGNAL mode, at volume minimum, SEL: HDMI/D-IN should be 600 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.
