Panasonic SA-VK660EE / SC-VK660EE Service Manual ▷ View online
3
Prevention of Electro Static Discharge (ESD) to
Electrostatically Sensitive (ES) Devices
7
4
About Lead-Free Solder (PbF)
9
4.1.
Service caution based on legal restrictions
9
5
Handling Precautions for Traverse Unit
10
5.1.
Handling Optical Pickup
10
5.2.
Replacing Precautions for Optical Pickup Unit
10
5.3.
Grounding for Preventing Electrostatic Destruction
10
6
Accessories
11
7
Operation Procedures
12
7.1.
Main Unit Operation Control
12
7.2.
Remote Control Operation Control
13
7.3.
Disc Information
14
7.4.
DivX VOD Content
16
8
DVD/CD Mechanism Changer Unit
17
8.1.
CRS1D Mechanism Overview
17
8.2.
Music Port
20
9
Self diagnosis and special mode setting
21
9.1.
Service Mode Summary Table
21
9.2.
Service Mode Table
21
9.3.
Optical Pick-up Breakdown Diagnosis
31
9.4.
DVD Self-Diagnostic Function Error Code
33
9.5.
Sales Demostration Lock Function
39
9.6.
Service Precautions
39
10 Assembling and Disassembling
41
10.1. Caution
41
10.2. Disassembly flow chart
43
10.3. Main Parts Location
44
10.4. Disassembly of Top Cabinet
45
10.5. Disassembly of DVD/CD Mechanism Changer Unit
45
10.6. Disassembly of Rear Panel
46
10.7. Disassembly of Main P.C.B.
46
10.8. Disassembly of SMPS P.C.B.
47
10.9. Disassembly of D-Amp P.C.B.
48
10.10. Disassembly of Front Panel Unit
49
10.11. Disassembly for Mic P.C.B.
50
10.12. Disassembly for Panel P.C.B.
50
10.13. Disassembly of Tact Switch P.C.B.
50
10.14. Disassembly of Deck mechanism unit
51
10.15. Disassembly of Deck P.C.B.
51
10.16. Disassembly for Deck Mechanism
52
10.17. Disassembly of Traverse Unit
54
10.18. Disassembly of DVD Module P.C.B.
56
10.19. Disassembly of Deck Mechanism P.C.B.
56
10.20. Replacement for cassette lid
56
10.21. Rectification for tape jam problem
57
11 Service Positions
58
11.1. Checking and Repairing of Main P.C.B.
58
11.2. Checking and Repairing of SMPS P.C.B.
58
11.3. Checking and Repairing of Panel P.C.B.
59
11.4. Checking and Repairing of D-Amp P.C.B., Deck P.C.B. &
Deck Mechanism P.C.B.
60
12 Adjustment Procedures
61
12.1. Cassette Deck Section
61
12.2. Tuner Section
62
12.3. Alignment Points
63
13 Illustration of ICs, Transistors and Diodes
64
14 Voltage and Waveform Chart
65
14.1. DVD Module P.C.B.
65
14.2. Main P.C.B.
66
14.3. Panel P.C.B.
67
14.4. DAMP P.C.B. & SMPS P.C.B.
67
14.5. Deck P.C.B., Deck Mechanism P.C.B. & Mic P.C.B.
68
14.6. Waveform Chart
69
15 Wiring Connection Diagram
70
16 Block Diagram
71
16.1. System Control Block Diagram
71
16.2. DVD Servo/ Video Block Diagram
72
16.3. Audio Block Diagram
73
16.4. Digital Amp Block Diagram
74
16.5. Deck Block Diagram
75
16.6. SMPS Block Diagram
76
17 Schematic Diagram Notes
77
18 Schematic Diagram
79
18.1. (A) DVD Module Circuit
79
18.2. (B) Main Circuit
83
18.3. (C) Panel Circuit
87
18.4. (D) Tact Switch Circuit,
(E) Mic Circuit & (G) Deck
Mechanism Circuit
89
18.5. (F) Deck Circuit
90
18.6. (H) D-Amp Circuit
91
18.7. (I) SMPS Circuit
93
18.8. Optical Pickup Unit Circuit
94
19 Printed Circuit Board
95
19.1. (A) DVD Module P.C.B. (Side A & B )
96
19.2. (B) Main P.C.B.
97
19.3. (C) Panel P.C.B.
98
19.4. (D) Tact Switch P.C.B., (E) Mic P.C.B., (F) Deck P.C.B. &
(G) Deck Mechanism P.C.B.
99
19.5. (H) D-Amp P.C.B.
100
19.6. (I) SMPS P.C.B.
101
20 Basic Troubleshooting Guide for Backend Module
103
20.1. Initialisation and Playability
103
21 Terminal Function of IC
104
21.1. IC2801 (C2CBYY000468
) System Microprocessor
104
21.2. IC6601 (C0HBB0000057
) FL Driver IC
105
22 Exploded Views
107
22.1. Cabinet Parts Location
107
22.2. Deck Mechanism Unit Parts Location (RAA4901-S)
109
22.3. Packaging
110
23 Replacement Parts List
111
23.1. Component Parts List
112
24 Schematic Diagram for printing with letter size
125
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SA-VK660EE
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, make 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
chassis, the reading should be between 1M
Ω
and 5.2M
Ω
.
When the exposed metal does not have a return path to the chassis, the reading must be
.
Figure 1
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
Ω
, 10 watts resistor, in parallel with a 0.15µF capacitor, 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 out 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.
specified, there is a possibility of a shock hazard, and the equipment should be repaired and rechecked before it is returned to
the customer.
1.2. Before Repair and Adjustment
Disconnect AC power, discharge Power Supply Capacitors C2550, C2556, C5101, C5104, C5165, C5166, C5171, C5172, C5950
and C5966 through a 10
and C5966 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.
Current consumption at AC 230V, 50 Hz in NO SIGNAL (vol. min, at CD mode) should be ~250mA .
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.
5
SA-VK660EE
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 & 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.
permission of manufacturer.
Table 1
Reference No.
Part No.
Part name & Description
Remarks
360
RAE2023Z-S
TRAVERSE UNIT
L5950
ELF15N035AN
LINE FILTER
T5950
G4CYBYY00013
MAIN TRANSFORMER
T5951
G4C2AAJ00005
SUB TRANSFORMER
Z5950
ERZV10V511CS
ZENER
RL5950
K6B1AEA00015
POWER RELAY
F1
K5D122BLA014
FUSE
FP5100
K5G401A00008
FUSE PROTECTOR
FP5950
K5G402A00025
FUSE PROTECTOR
JK5950
K2AA2B000011
JK AC INLET
A2
K2CQ2CA00007
AC CORD
6
SA-VK660EE
2 Precaution of Laser Diode
Caution :
This product utilizes a laser diode with the unit turned "ON", invisible laser radiation is emitted from the pick-up lens.
Wavelength : 785 nm(CD)/662 nm(DVD)
Maximum output radiation power from pick up : 100 µW/VDE
Wavelength : 785 nm(CD)/662 nm(DVD)
Maximum output radiation power from pick up : 100 µW/VDE
Laser radiation from pick up unit is safety level, but be sure the followings:
1. Do not disassemble the optical pick up unit, since radiation from exposed laser diode is dangerous.
2. Do not adjust the variable resistor on the pick up unit. It was already adjusted.
3. Do not look at the focus lens using optical instruments.
4. Recommend not to look at pick-up lens for a long time.
CAUTION!
THIS PRODUCT UTILIZES A LASER.
USE OF CONTROLS OR ADJUSTMENTS OR PERFORMANCE OF PROCEDURES OTHER THAN THOSE SPECIFIED HEREIN MAY RESULT
IN HAZARDOUS RADIATION EXPOSURE.
USE OF CONTROLS OR ADJUSTMENTS OR PERFORMANCE OF PROCEDURES OTHER THAN THOSE SPECIFIED HEREIN MAY RESULT
IN HAZARDOUS RADIATION EXPOSURE.
Q
Q
Q
Q
Use of Caution Labels
3 Prevention of Electro Static Discharge (ESD) to
Electrostatically Sensitive (ES) Devices
Some semiconductor (solid state) devices can be damaged easily by electricity. Such components commonly are called
Electrostatically Sensitive (ES) Devices. Examples of typical ES devices are integrated circuits and some field-effect transistors and
semiconductor “chip” components. The following techniques should be used to help reduce the incidence of component damage
caused by electro static discharge (ESD).
Electrostatically Sensitive (ES) Devices. Examples of typical ES devices are integrated circuits and some field-effect transistors and
semiconductor “chip” components. The following techniques should be used to help reduce the incidence of component damage
caused by electro static discharge (ESD).
1. Immediately before handling any semiconductor component or semiconductor-equipped assembly, drain off any ESD on your
body by touching a known earth ground. Alternatively, obtain and wear a commercially available discharging ESD wrist strap,
which should be removed for potential shock reasons prior to applying power to the unit under test.
which should be removed for potential shock reasons prior to applying power to the unit under test.
2. After removing an electrical assembly equipped with ES devices, place the assembly on a conductive surface such as
aluminium foil, to prevent electrostatic charge build up or exposure of the assembly.
3. Use only a grounded-tip soldering iron to solder or unsolder ES devices.
4. Use only an anti-static solder remover device. Some solder removal devices not classified as “anti-static (ESD protected)” can
generate electrical charge to damage ES devices.
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SA-VK660EE