Read Panasonic SA-VK82DGN (serv.man2) Service Manual online
AMPLIFIER SECTION
RMS Output Power: Dolby Digital Mode
Main
Main
85 W per channel (4
Ω), 1 kHz, 10% THD
Surround Ch
60 W per channel (4
Ω), 1 kHz, 10% THD
Center Ch
80 W per channel (4
Ω), 1 kHz, 10% THD
Subwoofer Ch
90 W per channel (4
Ω), 100 Hz, 10% THD
Total RMS Dolby Digital mode power
460 W
FM/AM TUNER, TERMINALS SECTION
Preset station
FM 15 stations
AM 15 stations
Frequency Modulation (FM)
Frequency range
Frequency range
87.50 - 108.00 MHz (50 kHz step)
Sensitivity
2.5 µV (IHF)
S/N 26 dB
2.2 µV
Antenna terminals
75
Ω (unbalanced)
Amplitude Modulation (AM)
Frequency range
Frequency range
522 - 1629 kHz (9 kHz step)
AM Sensitivity S/N 20dB at 999 kHz
560 µV/m
Audio performance (Amplifier)
Input sensitivity/Input impedance
Aux
Input sensitivity/Input impedance
Aux
250 mV, 20 k
Ω
2005 Co. .
SA-VK82DGN
Colour
(S)... Silver Type
(S)... Silver Type
Phone jack
Terminal
Terminal
Stereo, 3.5 mm jack
CASSETTE DECK SECTION
Type
Auto-Reverse
Track system
4-Track, 2 Channel
Head Record/Playback
Solid permoy head
Erasure
Double gap ferrite head
Motor
DC servo motor
Recording System
AC Bias 100 kHz
Erasing System
AC Erase 100 kHz
Tape Speed
4.8 cm/s
Over frequency response (+3, -6 dB) at DECK OUT
Normal
Normal
35 Hz - 14 kHz
S/N Ratio
50 dB (A weighted)
Wow and Flutter
0.18 % (WRMS)
Fast Forward and Rewind Time
Approx. 120 seconds with
C-60 cassette tape
DISC SECTION
Disc played [8 cm or 12 cm]
(1) DVD (DVD-Video, DVD-Audio)
(2) DVD-RAM (DVD-VR, JPEG
(1) DVD (DVD-Video, DVD-Audio)
(2) DVD-RAM (DVD-VR, JPEG
* 4
,
*5
)
(3) DVD-R (DVD-Video)
(4) DVD-RW (DVD-Video)
+ R/RW (Video)
(5) CD,CD-R/RW [CD-DA, Video CD, SVCD
(4) DVD-RW (DVD-Video)
+ R/RW (Video)
(5) CD,CD-R/RW [CD-DA, Video CD, SVCD
* 1
, MP3
* 2
,
* 5
, WMA
* 3
,
* 5
,
JPEG
* 4
,
* 5
, HighMAT Level 2 (Audio and Image)]
* 1
Conforming to IEC62107
DVD Stereo System
Specifications
ORDER NO. MD0506223C3
* 2
MPEG-1 Layer 3, MPEG-2 Layer 3
* 3
Windows Media Audio Ver.9.0. Class 2A
Not compatible with Multiple Bit Rate (MBR)
* 4
Exif Ver 2.1 JPEG Baseline files
Picture resolution: between 160 x 120 and 6144 x 4096 pixels (Sub
sampling is 4:2:2 or 4:2:0)
sampling is 4:2:2 or 4:2:0)
* 5
The total combined maximum number of recognizable audio and
picture contents and groups: 4000 audio and picture contents and
400 groups.
Pick up
Wavelength
CD
400 groups.
Pick up
Wavelength
CD
785 nm
DVD
662 nm
Audio output (Disc)
Number of channels
Number of channels
5.1 ch (FL,FR,C,SL,SR,SW)
Audio performance (measurement at: Line out terminal)
Frequency response
CD-Audio
Frequency response
CD-Audio
4 Hz to 20 kHz (+1dB ,-2 dB)
VIDEO SECTION
Video system
Signal system
Signal system
PAL625/50, PAL525/60, NTSC
Composite video output
Output level
Output level
1 Vp-p (75
Ω)
Terminal
Pin jack (1 system)
S-video output
Y output level
Y output level
1 Vp-p (75
Ω)
C output level
0.3 Vp-p (75
Ω) (PAL)
0.286 Vp-p (75
Ω) (NTSC)
Terminal
S terminal (1 system)
Component video output
[NTSC: 525 (480)p/525 (480)i, PAL: 625 (576)p/625 (576)i]
Y output level
[NTSC: 525 (480)p/525 (480)i, PAL: 625 (576)p/625 (576)i]
Y output level
1 Vp-p (75
Ω)
P
B
output level
0.7 Vp-p (75
Ω)
P
R
output level
0.7 Vp-p (75
Ω)
Terminal
Pin jack (Y: green, P
B
: blue, P
R
: red) (1 system)
GENERAL
Power supply
AC 230 to 240 V, 50Hz
Power consumption
365 W
Power consumption in standby mode:
0.9 W (approximate)
Dimensions (W x H x D)
250 x 330 x 348 mm
Mass
9.4 kg
1 Before Repair and Adjustment
4
Operating temperature range
+5°C to +35°C
Operating humidity range
5% to 90% RH (no condensation)
SYSTEM
SC-VK82D (GN)
Music System: SF-VK82D (GN)
Speakers: SB-VK82D (GC)
Notes:
1. Specifications are subject to change without notice. Mass and
1. Specifications are subject to change without notice. Mass and
dimensions are approximate.
2. Total harmonic distortion is measured by the digital spectrum
analyzer.
2 Protection Circuitry
4
CONTENTS
Page
Page
2
SA-VK82DGN
3 Safety Precautions
4
3.1.
General Guidelines
4
4 Prevention of Electro Static Discharge (ESD) to
Electrostatically Sensitive (ES) Devices
6
5 Handling the Lead-free Solder
6
5.1.
About lead free solder (PbF)
6
6 Precaution of Laser Diode
7
7 Cautions to be taken when handling Optical Pickup
8
7.1.
Handling Optical Pickup
8
7.2.
Replacing Precautions for Optical Pickup Unit
8
7.3.
Grounding for Preventing Electrostatic Destruction
8
8 Accessories
9
9 Operation Procedures
10
10 Disc information
12
11 About HighMAT
14
11.1. What 痴 HighMAT?
14
11.2. Why take advantage of HighMAT?
14
11.3. Benefits of HighMAT?
15
12 Optical Pickup Self-Diagnosis and Replacement Procedure 18
12.1. Optical Pickup Breakdown diagnosis
18
13 Self-Diagnosis Function
19
13.1. Entering into Self-Diagnostic Mode
19
13.2. Automatic Displayed Error Codes
19
13.3. Memorized Error Codes
19
13.4. Service Mode Table 1
20
13.5. DVD/CD Self-Diagnosis Error Code Description
20
13.6. Mode Table 2
20
13.7. CR16 Mechanism Ageing Mode
23
13.8. Operation Lock Function
23
13.9. Things to Do After Repair
24
14 Cautions To Be Taken During Servicing
24
14.1. Recovery after the dvd player is repaired
24
14.2. DVD Player Firmware Version Upgrade Process
24
14.3. Firmware Version Upgrade Process by Using Disc and
Recovery Process
24
14.4. Using Recovery Disc
25
14.5. Total Usage Time Display
25
14.6. After replacement of DVD Module
25
15 Disassembly and Assembly of Main Component
26
15.1. Disassembly steps
26
15.2. Disassembly flow chart
27
15.3. Disassembly of Top Cabinet
28
15.4. Disassembly of Rear Panel
28
15.5. Disassembly of DVD Changer Unit
28
15.6. Disassembly of Main P.C.B.
30
15.7. Disassembly of Power Amp P.C.B.
30
15.8. Disassembly of Power P.C.B.
31
15.9. Disassembly of Transformer P.C.B.
32
15.10. Disassembly of Front Panel Unit
33
15.11. Disassembly for Panel P.C.B.
34
15.12. Disassembly of Deck Mechanism Unit
35
15.13. Replacement for Deck P.C.B.
35
15.14. Replacement for Traverse Deck
35
15.15. Replacement for Optical Pickup Unit (DVD mechanism) 36
15.16. Procedure for removing CD loading mechanism
39
15.17. CR16 mechanism disassembly procedure
39
15.18. CR16 mechanism assembly procedure
45
15.19. Disassembly for Traverse Unit
57
15.20. Replacement for cassette lid
58
15.21. Rectification for tape jam problem
59
16 Checking for major P.C.Bs
60
16.1. Checking of Main P.C.B.
60
16.2. Checking of Transformer P.C.B.
61
16.3. Checking of Panel, Deck & Deck Mechanism P.C.B.
62
16.4. Checking of Power P.C.B.
63
17 Measurements and Adjustments
64
17.1. Cassette Deck Section
64
17.2. Tuner Section
65
17.3. Alignment Points
66
18 Block Diagram
67
19 Voltage Measurement
78
20 Schematic Diagram
79
20.1. Optical Pickup Unit Circuit
80
20.2. (A) DVD Module Circuit
81
20.3. (B) Main (Tuner) Circuit
88
20.4. (B) Main Circuit
89
20.5. (C) Panel Circuit
98
20.6. (E) Deck Circuit & (F) Deck Mechanism Circuit
100
20.7. (G) Power Circuit
102
20.8. (H) Power Amp Circuit
103
20.9. (I) Transformer Circuit
104
20.10. (J) CD Loading Circuit
105
21 Printed Circuit Board
106
21.1. (A) DVD Module P.C.B. (Side: A & B )
106
21.2. (B) Main P.C.B.
108
21.3. (C) Panel P.C.B.
110
21.4. (E) Deck P.C.B. & (F) Deck Mechanism P.C.B.
112
21.5. (G) Power P.C.B. & (H) Power Amp P.C.B.
113
21.6. (I) Transformer P.C.B.
115
21.7. (J) CD Loading P.C.B. & (K) Tuner Pack P.C.B.
116
22 Wiring Connection Diagram
117
23 Illustration of ICs, Transistors and Diodes
119
24 Terminal Function of IC
121
24.1. IC2818 (C2CBJG000653) System Microprocessor
121
25 Parts Location and Replacement Parts List
123
25.1. Deck Mechanism (RAA3413-S)
124
25.2. DVD Loading Mechanism
127
25.3. Cabinet
130
25.4. Electrical Parts List
133
25.5. Packing Materials & Accessories Parts List
145
25.6. Packaging
146
3
SA-VK82DGN
1 Before Repair and Adjustment
Disconnect AC power, discharge Power Supply Capacitors C5815, C5818, C9513, C9533, C9534, C9816 and C9817 through a
10
10
Ω, 5W 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 220-240V at 50Hz in NO SIGNAL (vol. min, at CD mode) should be ~500mA .
After repairs are completed, restore power gradually using a variac, to avoid overcurrent.
Current consumption at AC 220-240V at 50Hz in NO SIGNAL (vol. min, at CD mode) should be ~500mA .
2 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.
· 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.
3 Safety Precautions
3.1. 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.
3.1.1. 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
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 5.2MΩ.
When the exposed metal does not have a return path to the chassis, the reading must be
.
Figure 1
3.1.2. Leakage Current Hot Check
(See Figure 1)
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 capacitor, between each exposed metallic part on the set and a
good earth ground such as a water pipe, as shown in Figure 1.
4
SA-VK82DGN