SA-XH70GW, SA-XH70EE, SC-XH70EE - Panasonic Audio Service Manual (repair manual). Page 2

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7.3. Connection with an ARC compatible TV ----------- 22

8 Operating Instructions ---------------------------------------- 23

8.1. Removing of disc during abnormality --------------- 23

9 Service Mode ----------------------------------------------------- 25

9.1. Cold-Start--------------------------------------------------- 25
9.2. Panel Code Setting Operation ------------------------ 25
9.3. Self Diagnostic -------------------------------------------- 28
9.4. Error Code ------------------------------------------------- 33
9.5. Sales Demonstration Lock Function ---------------- 35
9.6. Firmware Version-Up Information -------------------- 36

10 Troubleshooting Guide---------------------------------------- 38

10.1. Troubleshooting Guide for F61 and/or F76 -------- 38
10.2. DVD/CD Laser Diode current measurement ------ 41
10.3. Basic Troubleshooting Guide for Traverse

Unit (Backend P.C.B.) ----------------------------------- 43

10.4. Basic Troubleshooting Guide for HDMI AV

output-------------------------------------------------------- 44

11 Service Fixture & Tools --------------------------------------- 45

12 Disassembly and Assembly Instructions --------------- 46

12.1. Screw Type ------------------------------------------------ 46
12.2. Disassembly Flow Chart-------------------------------- 47
12.3. Main Components and P.C.B. Locations ----------- 48
12.4. Disassembly of Top Cabinet--------------------------- 49
12.5. Replacement of Tray Ornament ---------------------- 50
12.6. Disassembly of Front Panel Block Assembly ----- 52
12.7. Disassembly of Panel P.C.B. -------------------------- 53
12.8. Disassembly of Power Button P.C.B.---------------- 54
12.9. Disassembly of Rear Panel---------------------------- 55

12.10. Disassembly of SMPS P.C.B. ------------------------- 56

12.11. Replacement of Current Limiting Switch

(Q5701) ----------------------------------------------------- 57

12.12. Replacement of Diode (D5706) ---------------------- 58
12.13. Disassembly of Main P.C.B. --------------------------- 59
12.14. Replacement of Digital Amplifier IC (IC403/

IC404/IC405) ---------------------------------------------- 60

12.15. Disassembly of Backend P.C.B. ---------------------- 62
12.16. Disassembly of DVD Mechanism Unit

(BRS1D) ---------------------------------------------------- 63

12.17. Replacement of Traverse unit------------------------- 64

13 Service Position ------------------------------------------------- 70

13.1. Checking & Repairing of Panel P.C.B. -------------- 70
13.2. Checking & Repairing of SMPS P.C.B. ------------- 70
13.3. Checking & Repairing Main P.C.B. ------------------ 71
13.4. Checking & Repairing of Backend P.C.B. ---------- 72

14 Overall Simplified Block Diagram ------------------------- 75
15 Block Diagram --------------------------------------------------- 76

15.1. Backend ---------------------------------------------------- 76
15.2. IC Terminal Chart----------------------------------------- 77
15.3. System Control ------------------------------------------- 78
15.4. Audio & Video --------------------------------------------- 79
15.5. Power Supply --------------------------------------------- 80

16 Wiring Connection Diagram --------------------------------- 82
17 Schematic Diagram--------------------------------------------- 83

17.1. Schematic Diagram Notes ----------------------------- 83
17.2. Backend Circuit ------------------------------------------- 85
17.3. Main Circuit ------------------------------------------------ 91
17.4. Panel and Power Button Circuit ---------------------- 99
17.5. SMPS Circuit -------------------------------------------- 100

18 Printed Circuit Board ---------------------------------------- 102

18.1. Backend P.C.B. ----------------------------------------- 102
18.2. Main P.C.B. ---------------------------------------------- 103

18.3. Panel and Power Button P.C.B. --------------------- 105
18.4. SMPS P.C.B.--------------------------------------------- 106

19 Appendix Information of Schematic Diagram ------- 107

19.1. Voltage & Waveform Chart --------------------------- 107
19.2. Illustration of ICs, Transistor and Diode----------- 115
19.3. Terminal Function of ICs ------------------------------ 116

20 Exploded View and Replacement Parts List---------- 119

20.1. Exploded View and Mechanical Replacement

Parts List -------------------------------------------------- 119

20.2. Electrical Replacement Parts List ------------------ 124