SA-PT170EE, SC-PT170EE - Panasonic Audio Service Manual (repair manual)

sa-pt170ee, sc-pt170ee service manual
Model
SA-PT170EE SC-PT170EE
Pages
127
Size
6.81 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio / DVD HOME THEATER SOUND SYSTEM
File
sa-pt170ee-sc-pt170ee.pdf
Date

Read Panasonic SA-PT170EE / SC-PT170EE Service Manual online

PSG0905014CE
DVD Home Theater Sound System
Model No.
SA-PT170EE
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 ------------------------- 3
1.3. Protection Circuitry ---------------------------------------- 4
1.4. Safety Parts Information --------------------------------- 4
2 Warning -------------------------------------------------------------- 5
2.1. Prevention of Electrostatic Discharge (ESD)
to Electrostatic Sensitive (ES) Devices -------------- 5
2.2. Precaution of Laser Diode ------------------------------- 6
2.3. Service caution based on Legal restrictions -------- 7
2.4. Handling Precautions for Traverse Unit -------------- 8
3 Service Navigation --------------------------------------------- 10
3.1. Service Information -------------------------------------- 10
4 Specifications ---------------------------------------------------- 11
5 Location of Controls and Components------------------ 13
5.1. Remote Control Key Button Operations------------ 13
Notes: This model’s DVD mechanism unit is DLS6. Please refer to the original service manual 
(Order No. MD0801003CE) for this mechanism
2
5.2. Main Unit Key Button Operations -------------------- 14
5.3. Using the VIERA Link “HDAVI Control”------------- 15
5.4. USB Connection and Operations -------------------- 17
5.5. Music Port Connection and Operations ------------ 18
5.6. Speaker Connection ------------------------------------- 19
5.7. Disc Information ------------------------------------------ 20
6 Self-Diagnosis and Special Mode Setting -------------- 22
6.1. Service Mode Summary Table ------------------------ 22
6.2. Service Mode Table-------------------------------------- 22
6.3. DVD Self Diagnostic Function-Error Code--------- 29
6.4. Sales Demonstration Lock Function ---------------- 32
6.5. Firmware Version-Up Information -------------------- 33
7 Troubleshooting Guide---------------------------------------- 35
7.1. Troubleshooting Guide for F61 and/or F76 -------- 35
7.2. Basic Troubleshooting Guide for Traverse
Unit (DVD Module P.C.B.)------------------------------ 42
7.3. Basic Troubleshooting Guide for HDMI AV
Output ------------------------------------------------------- 43
8 Service Fixture & Tools --------------------------------------- 45
8.1. Service Tools and Equipment ------------------------- 45
9 Disassembly and Assembly Instructions --------------- 46
9.1. Disassembly Flow Chart-------------------------------- 47
9.2. Main Components and P.C.B. Locations ----------- 48
9.3. Disassembly of Top Cabinet--------------------------- 49
9.4. Disassembly of Rear Panel---------------------------- 49
9.5. Disassembly of DVD Mechanism Unit (DLS6)---- 49
9.6. Disassembly of Front Panel Assembly ------------- 50
9.7. Disassembly of Panel, Power Button P.C.B. ------ 51
9.8. Disassembly of MPort / USB P.C.B. ----------------- 52
9.9. Disassembly of Mic P.C.B. ----------------------------- 52
9.10. Disassembly of DVD Lid-------------------------------- 52
9.11. Disassembly of AC Inlet P.C.B. ----------------------- 53
9.12. Disassembly of Main P.C.B. --------------------------- 54
9.13. Disassembly of Analog Amp P.C.B. ----------------- 55
9.14. Replacement of 2CH BTL Power Amplifier IC
(IC5100) ---------------------------------------------------- 56
9.15. Replacement of 2CH BTL Power Amplifier IC
(IC5200) ---------------------------------------------------- 57
9.16. Replacement of 2CH BTL Power Amplifier IC
(IC5300) ---------------------------------------------------- 59
9.17. Disassembly of SMPS P.C.B. ------------------------- 60
9.18. Replacement of Switching Regulator IC
(IC5701) ---------------------------------------------------- 61
9.19. Replacement of Regulator Diode (D5802)--------- 62
9.20. Disassembly of DVD Module P.C.B.----------------- 63
9.21. Disassembling & Assembling of Traverse Unit --- 64
10 Service Position ------------------------------------------------- 66
10.1. Checking & Servicing Main P.C.B. ------------------- 66
10.2. Checking & Analog Amp P.C.B. ---------------------- 66
10.3. Checking & Servicing SMPS & AC Inlet P.C.B. --- 68
10.4. Checking & Servicing DVD Module P.C.B. -------- 69
11 Voltage & Waveform Chart ----------------------------------- 71
11.1. DVD Module P.C.B. (1/4)------------------------------- 71
11.2. DVD Module P.C.B. (2/4)------------------------------- 72
11.3. DVD Module P.C.B. (3/4)------------------------------- 73
11.4. DVD Module P.C.B. (4/4)------------------------------- 74
11.5. Main P.C.B. (1/2) ----------------------------------------- 75
11.6. Main P.C.B. (2/2) ----------------------------------------- 76
11.7. Panel P.C.B. ----------------------------------------------- 76
11.8. Analog Amp P.C.B. -------------------------------------- 77
11.9. SMPS P.C.B. ---------------------------------------------- 78
11.10. Mic P.C.B.-------------------------------------------------- 79
11.11. Waveform Table (1/4) ----------------------------------- 80
11.12. Waveform Table (2/4) ----------------------------------- 81
11.13. Waveform Table (3/4) ----------------------------------- 82
11.14. Waveform Table (4/4) ----------------------------------- 83
12 Illustration of ICs, Transistor and Diode ---------------- 84
13 Overall Simplified Block Diagram------------------------- 85
14 Block Diagram --------------------------------------------------- 86
14.1. System Control  ------------------------------------------ 86
14.2. DVD (SERVO)-------------------------------------------- 87
14.3. DVD (Audio)----------------------------------------------- 88
14.4. DVD (HDMI)----------------------------------------------- 89
14.5. Video-------------------------------------------------------- 90
14.6. Audio-------------------------------------------------------- 91
14.7. Analog Amp ----------------------------------------------- 92
14.8. Power ------------------------------------------------------- 93
15 Wiring Connection Diagram -------------------------------- 94
16 Schematic Diagram Notes ----------------------------------- 95
17 Schematic Diagram -------------------------------------------- 97
17.1. DVD Module Circuit ------------------------------------- 97
17.2. Main Circuit----------------------------------------------- 102
17.3. Panel Circuit --------------------------------------------- 106
17.4. MPort/USB & Power Button Circuit ---------------- 107
17.5. Analog Amp Circuit------------------------------------- 108
17.6. SMPS Circuit--------------------------------------------- 109
17.7. AC Inlet Circuit ------------------------------------------ 111
17.8. Mic Circuit ------------------------------------------------ 112
18 Printed Circuit Board----------------------------------------- 113
18.1. DVD Module P.C.B. ------------------------------------ 113
18.2. Main P.C.B.----------------------------------------------- 114
18.3. Panel, MPort/USB, Power Button & AC Inlet
P.C.B. ------------------------------------------------------ 115
18.4. Analog Amp P.C.B. ------------------------------------- 116
18.5. SMPS P.C.B.--------------------------------------------- 117
18.6. Mic P.C.B.------------------------------------------------- 118
19 Terminal Function of ICs ------------------------------------ 119
19.1. IC2001 (RFKWMPT470EB): IC MICRO
PROCESSOR ------------------------------------------- 119
19.2. IC6901(C0HBB0000057): IC FL Driver ----------- 119
20 Exploded View and Replacement Parts List---------- 121
20.1. Exploded View and Mechanical Replacement
Part List --------------------------------------------------- 121
20.2. Electrical Replacement Part List -------------------- 125
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
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
 and 5.2M
.
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
, 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.
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)
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.
Figure 1
1.2.
Before Repair and Adjustment
Disconnect AC power to discharge unit AC Capacitors as such (C5700, C5701, C5702, C5706, C5707, C5708) through a 10 
, 10
W 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 230 V, 50 Hz in NO SIGNAL mode volume minimal should be ~ 500 mA.
1.2.1.
Caution for fuse replacement
4
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.
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:
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.
Note:
When the protection circuitry functions, the unit will not operate unless the power is first turned off and then on again.
1.4.
Safety Parts 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.
Safety
Ref. No.
Part No.
Part Name & Description
Remarks
18
RGRX0071D-B2
REAR PANEL
31
RKMX0141-1K3
TOP CABINET
50
REXX0728
BLACK WIRE (SMPS-AC)
51
REXX0730
RED WIRE (SMPS-AC)
301
RD-DDTX001-V
TRAVERSE UNIT
(RTL)
A2
K2CQ2CA00007
AC CORD
A3
RQTX0247-R
O/I BOOK (Ru/Ur)
PCB6
REPX0729A
SMPS P.C.B
(RTL)
PCB7
REPX0729A
AC INLET P.C.B
(RTL)
DZ5701
ERZV10V511CS
ZNR
L5702
ELF19H010A
LINE FILTER
T2900
G4D1A0000117
SWITCHING TRANSFORMER
T5701
ETS35BC2P6AC
MAIN TRANSFORMER
T5751
ETS19AB2A6AG
BACKUP TRANSFORMER
PC5702
B3PBA0000402
PHOTO COUPLER
PC5720
B3PBA0000402
PHOTO COUPLER
PC5799
B3PBA0000402
PHOTO COUPLER
RY5701
K6B1AEA00003
RELAY
F1
K5D202BK0005
FUSE
F2
K5G162B00016
FUSE
FP2901
K5H1022A0011
FUSE PROTECTOR
TH5702
D4CAA5R10001
THERMISTOR
P5701
K2AA2B000017
AC INLET
C5700
F1BAF1020020
1000pF
C5701
ECQU2A104MLC
0.1uF
C5702
ECQU2A104MLC
0.1uF
C5706
F1BAF1020020
1000pF
C5707
F1BAF1020020
1000pF
C5708
F1BAF1020020
1000pF
Page of 127
Display

Download Panasonic SA-PT170EE / SC-PT170EE Service Manual (Repair Manual)

Here you can read online and download Panasonic SA-PT170EE / SC-PT170EE Service Manual in PDF. SA-PT170EE / SC-PT170EE service manual will guide through the process and help you recover, restore, fix, disassemble and repair Panasonic SA-PT170EE / SC-PT170EE Audio. Information contained in service manuals typically includes schematics / circuit diagrams, wiring diagrams, block diagrams, printed wiring boards, exploded views, parts list, disassembly / assembly, pcb.