Panasonic SC-HTX500EB / SC-HTX500EEK / SU-HTX500EB / SU-HTX500EE Service Manual ▷ View online
PSG1003021CE
Home Theater Audio System
Model No.
SC-HTX500EB
SC-HTX500EE
SU-HTX500EB
SU-HTX500EE
SC-HTX500EE
SU-HTX500EB
SU-HTX500EE
Product Color: (K)...Black Type
TABLE OF CONTENTS
PAGE
PAGE
1 Safety Precautions----------------------------------------------- 3
1.1. General Guidelines---------------------------------------- 3
1.2. Caution for AC Cord -------------------------------------- 4
1.3. Before Repair and Adjustment ------------------------- 5
1.4. Caution For Fuse Replacement------------------------ 5
1.5. Protection Circuitry ---------------------------------------- 5
1.6. Safety Part Information----------------------------------- 6
1.2. Caution for AC Cord -------------------------------------- 4
1.3. Before Repair and Adjustment ------------------------- 5
1.4. Caution For Fuse Replacement------------------------ 5
1.5. Protection Circuitry ---------------------------------------- 5
1.6. Safety Part Information----------------------------------- 6
2 Warning -------------------------------------------------------------- 7
2.1. Prevention of Electro Static Discharge (ESD)
to Electrostaticy Sensitive (ES) Devices---------- 7
2.2. Service caution based on Legal restrictions -------- 8
3 Service Navigation ----------------------------------------------- 9
3.1. Service Information --------------------------------------- 9
4 Specifications ----------------------------------------------------10
5 Location of Controls and Components------------------ 11
5.1. The System (Rack) Buttons Operation ------------- 11
5.2. Remote Control Key Buttons Operation------------ 12
5.3. Digital audio signals supported by this system --- 13
5.4. Insting and assembling of the system ----------- 14
5.5. AC power supply connection ------------------------- 18
5.6. Basic Connections --------------------------------------- 19
5.2. Remote Control Key Buttons Operation------------ 12
5.3. Digital audio signals supported by this system --- 13
5.4. Insting and assembling of the system ----------- 14
5.5. AC power supply connection ------------------------- 18
5.6. Basic Connections --------------------------------------- 19
6 Self diagnostic and special mode setting -------------- 21
6.1. Automaticy Displayed Error Codes --------------- 21
6.2. Service Mode --------------------------------------------- 22
6.3. Checking 2.1 ch output of analog signal ----------- 22
6.4. Doctor Mode----------------------------------------------- 22
6.5. Test Mode -------------------------------------------------- 23
6.2. Service Mode --------------------------------------------- 22
6.3. Checking 2.1 ch output of analog signal ----------- 22
6.4. Doctor Mode----------------------------------------------- 22
6.5. Test Mode -------------------------------------------------- 23
7 Troubleshooting Guide --------------------------------------- 24
2
7.1. HDMI Troubleshooting Guide ------------------------- 24
8 Service Fixture & Tools --------------------------------------- 25
9 Disassembly and Assembly Instructions--------------- 26
9 Disassembly and Assembly Instructions--------------- 26
9.1. Disassembly flow chart --------------------------------- 27
9.2. Main Parts Location Diagram ------------------------- 28
9.3. Rack Unit -------------------------------------------------- 30
9.4. AMP Unit --------------------------------------------------- 55
9.2. Main Parts Location Diagram ------------------------- 28
9.3. Rack Unit -------------------------------------------------- 30
9.4. AMP Unit --------------------------------------------------- 55
10 Service Position ------------------------------------------------- 70
10.1. Checking & Repairing Main P.C.B. (B side) ------- 70
10.2. Checking & Repairing Main P.C.B. (A side) ------- 70
10.3. Checking & Repairing SMPS P.C.B. ---------------- 73
10.4. Checking & Repairing D-AMP P.C.B. --------------- 75
10.5. Checking & Repairing HDMI P.C.B. ----------------- 77
10.6. Checking & Repairing Panel P.C.B. ----------------- 78
10.2. Checking & Repairing Main P.C.B. (A side) ------- 70
10.3. Checking & Repairing SMPS P.C.B. ---------------- 73
10.4. Checking & Repairing D-AMP P.C.B. --------------- 75
10.5. Checking & Repairing HDMI P.C.B. ----------------- 77
10.6. Checking & Repairing Panel P.C.B. ----------------- 78
11 Voltage Measurement & Waveform Chart--------------- 79
11.1. HDMI P.C.B. (1/3) ---------------------------------------- 79
11.2. HDMI P.C.B. (2/3) ---------------------------------------- 80
11.3. HDMI P.C.B. (3/3) ---------------------------------------- 81
11.4. MAIN P.C.B. (1/4) ---------------------------------------- 82
11.5. MAIN P.C.B. (2/4) ---------------------------------------- 83
11.6. MAIN P.C.B. (3/4) ---------------------------------------- 84
11.7. MAIN P.C.B. (4/4) ---------------------------------------- 85
11.8. PANEL P.C.B. --------------------------------------------- 86
11.9. D-AMP P.C.B. (1/2) -------------------------------------- 87
11.2. HDMI P.C.B. (2/3) ---------------------------------------- 80
11.3. HDMI P.C.B. (3/3) ---------------------------------------- 81
11.4. MAIN P.C.B. (1/4) ---------------------------------------- 82
11.5. MAIN P.C.B. (2/4) ---------------------------------------- 83
11.6. MAIN P.C.B. (3/4) ---------------------------------------- 84
11.7. MAIN P.C.B. (4/4) ---------------------------------------- 85
11.8. PANEL P.C.B. --------------------------------------------- 86
11.9. D-AMP P.C.B. (1/2) -------------------------------------- 87
11.10. D-AMP P.C.B. (2/2) -------------------------------------- 88
11.11. SMPS P.C.B. ---------------------------------------------- 88
11.12. Waveform Chart (1/2) ----------------------------------- 89
11.13. Waveform Chart (2/2) ----------------------------------- 90
11.13. Waveform Chart (2/2) ----------------------------------- 90
12 Illustration of IC’s, Transistors and Diodes ------------ 91
13 Block Diagram --------------------------------------------------- 93
13 Block Diagram --------------------------------------------------- 93
13.1. HDMI BLOCK DIAGRAM ------------------------------ 93
13.2. IC TERMINAL (HDMI) CHART ----------------------- 94
13.3. MAIN(SYSTEM CONTROL) BLOCK
13.2. IC TERMINAL (HDMI) CHART ----------------------- 94
13.3. MAIN(SYSTEM CONTROL) BLOCK
DIAGRAM -------------------------------------------------- 95
13.4. MAIN (AUDIO) BLOCK DIAGRAM ------------------ 96
13.5. IC TERMINAL (MAIN(AUDIO)) CHART ------------ 97
13.6. DIGITAL AUDIO CHART ------------------------------- 98
13.7. POWER SUPPLY(1/2) BLOCK DIAGRAM -------- 99
13.8. POWER SUPPLY(2/2) BLOCK DIAGRAM ------ 100
13.5. IC TERMINAL (MAIN(AUDIO)) CHART ------------ 97
13.6. DIGITAL AUDIO CHART ------------------------------- 98
13.7. POWER SUPPLY(1/2) BLOCK DIAGRAM -------- 99
13.8. POWER SUPPLY(2/2) BLOCK DIAGRAM ------ 100
14 Wiring Connection Diagram ------------------------------- 101
15 Schematic Diagram Notes --------------------------------- 103
16 Schematic Diagram------------------------------------------- 105
15 Schematic Diagram Notes --------------------------------- 103
16 Schematic Diagram------------------------------------------- 105
16.1. HDMI CIRCUIT (1/4) ---------------------------------- 105
16.2. HDMI CIRCUIT (2/4) ---------------------------------- 106
16.3. HDMI CIRCUIT (3/4) ---------------------------------- 107
16.4. HDMI CIRCUIT (4/4) ---------------------------------- 108
16.5. MAIN CIRCUIT (1/5) ---------------------------------- 109
16.6. MAIN CIRCUIT (2/5) -----------------------------------110
16.7. MAIN CIRCUIT (3/5) -----------------------------------111
16.8. MAIN CIRCUIT (4/5) -----------------------------------112
16.9. MAIN CIRCUIT (5/5) -----------------------------------113
16.2. HDMI CIRCUIT (2/4) ---------------------------------- 106
16.3. HDMI CIRCUIT (3/4) ---------------------------------- 107
16.4. HDMI CIRCUIT (4/4) ---------------------------------- 108
16.5. MAIN CIRCUIT (1/5) ---------------------------------- 109
16.6. MAIN CIRCUIT (2/5) -----------------------------------110
16.7. MAIN CIRCUIT (3/5) -----------------------------------111
16.8. MAIN CIRCUIT (4/5) -----------------------------------112
16.9. MAIN CIRCUIT (5/5) -----------------------------------113
16.10. PANEL CIRCUIT ----------------------------------------114
16.11. D-AMP CIRCUIT (1/3) ---------------------------------115
16.12. D-AMP CIRCUIT (2/3) ---------------------------------116
16.13. D-AMP CIRCUIT (3/2) ---------------------------------117
16.14. SMPS CIRCUIT (1/2) ----------------------------------118
16.15. SMPS CIRCUIT (2/2) ----------------------------------119
16.16. AC INLET CIRCUIT ----------------------------------- 120
16.13. D-AMP CIRCUIT (3/2) ---------------------------------117
16.14. SMPS CIRCUIT (1/2) ----------------------------------118
16.15. SMPS CIRCUIT (2/2) ----------------------------------119
16.16. AC INLET CIRCUIT ----------------------------------- 120
17 Printed Circuit Board ---------------------------------------- 121
17.1. HDMI P.C.B. --------------------------------------------- 121
17.2. MAIN P.C.B. (SIDE A)--------------------------------- 122
17.2. MAIN P.C.B. (SIDE A)--------------------------------- 122
17.3. MAIN P.C.B. (SIDE B) ---------------------------------123
17.4. PANEL P.C.B. / AC INLET P.C.B. ------------------124
17.5. D-AMP P.C.B.--------------------------------------------125
17.6. SMPS P.C.B.---------------------------------------------126
17.4. PANEL P.C.B. / AC INLET P.C.B. ------------------124
17.5. D-AMP P.C.B.--------------------------------------------125
17.6. SMPS P.C.B.---------------------------------------------126
18 Terminal Function of IC’s -----------------------------------127
18.1. IC4301 (RFKWMHTX500B) IC
MICROPROCESSOR ---------------------------------127
19 Exploded View and Replacement Parts List----------129
19.1. Exploded View and Mechanical replacement
Parts List --------------------------------------------------129
19.2. Electrical Replacement Parts List ------------------135
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.
Caution for AC Cord