DVD Stereo System
SA-VK925DGC
Colour
(S)... Silver Type
ORDER NO. MD0506220A3
Please use this manual together with the service manual for Model No. [SA-VK92DGCS/GS-S, Order No.
MD0505198C3].
Specifications
n AMPLIFIER SECTION
RMS Output Power: Dolby Digital Mode
Front - High Ch
95 W per channel (4 Ω ), 1 kHz, 10% THD
Front - Low Ch
50 W per channel (8 Ω), 100 Hz, 10% THD
Surround Ch
75 W per channel (4 Ω ), 1 kHz, 10% THD
Center Ch
100 W per channel (4 Ω ), 1 kHz, 10% THD
Subwoofer Ch
95 W per channel (4 Ω), 100 Hz, 10% THD
Total RMS Dolby Digital mode power
730 W
PMPO output power 8000 W
n FM/AM TUNER, TERMINALS SECTION
Preset station FM 15 stations
AM 15 stations
Frequency Modulation (FM)
Frequency range 87.50 - 108.00 MHz (50 kHz step)
Sensitivity 2.5 µV (IHF)
S/N 26dB 2.2 µV
ntenna terminals 75 Ω (unbalanced)
mplitude Modulation (AM)
Frequency range 522 - 1629 kHz (9 kHz step)
520 - 1630 kHz (10 kHz step)
M Sensitivity S/N 20dB at 999 kHz
560 µV/m
udio performance (Amplifier)
Input sensitivity/Input impedance
ux 250 mV, 20 kΩ
Phone jack
Terminal Stereo, 3.5 mm jack
Mic jack
Sensitivity 0.7 mV, 600 Ω
Terminal Mono, 6.3 mm jack (2 system)
© 2005 Matsushita Electric Industrial Co. Ltd.. All
rights reserved. Unauthorized copying and
distribution is a violation of law.
SA-VK925DGC
n CASSETTE DECK SECTION
Type Auto-Reverse
Track system 4-Track, 2 Channel
Head Record/Playback Solid permalloy 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
Overall frequency response (+3, -6 dB) at DECK OUT
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
n DISC SECTION
Disc played [8 cm or 12 cm]
*6
(1) DVD (DVD-Video, DVD-Audio, DivX , )
*6
*4
*7
(2) DVD-RAM (DVD-VR, JPEG,, MPEG4,,DivX , )
(3) DVD-R (DVD-Video, DivX , )
(4) DVD-RW (DVD-Video, DVD-VR, DivX , )
*7
*7
*6
*5
*7
*7
*6
*7
+ R/RW (Video)
(5) CD,CD-R/RW [CD-DA, Video CD, SVCD , MP3,, WMA
7
, JPEG
*4,*7
, MPEG4
* 5,*7
,DivX*6,*7, HighMAT Level 2 (Audio and
*1
*7
*2
*3
,
*
Image)]
*1
Conforming to IEC62107
*2
MPEG-1 Layer 3, MPEG-2 Layer 3
*3
Windows Media Audio Ver.9.0. L3
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)
*5
MPEG4 data recorded with Panasonic SD multi cameras or DVD
video recorders.
Conforming to SD VIDEO specifications (ASF standard)/ MPEG4
(Simple Profile) video system/G.7 26 audio system
*6
DivX 3.11, 4.x, 5.x
GMC (Global Motion Compensation) is not supported
*7
The total combined maximum number of recognizable audio,
picture and video contents and groups: 4000 audio ,picture and video
contents and 400 groups.
Pick up
Wavelength
CD 785 nm
DVD 662 nm
udio output (Disc)
Number of channels 5.1 ch (FL,FR,C,SL,SR,SW)
udio performance (measurement at: Line out terminal)
Frequency response
CD-Audio 4Hzto20kHz(+1dB,-2dB)
n VIDEO SECTION
Video system
Signal system PAL625/50, PAL525/60, NTSC
Composite video output
Output level 1Vp-p(75Ω)
Terminal Pin jack (1 system)
S-video output
Y output level 1Vp-p(75Ω)
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 1Vp-p(75Ω)
PBoutput level 0.7 Vp-p (75 Ω )
PRoutput level 0.7 Vp-p (75 Ω )
Terminal
Pin jack (Y: green, PB:blue,PR:red)(1system)
n GENERAL
Power supply
AC 110 to 127V/220 to 240 V, 50/60Hz
Power consumption 450 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
Operating temperatur e range +5°C to +35°C
Operating humidity range 5% to 90% RH (no condensation)
n SYSTEM
SC-VK925D (GC) Music System: SF-VK925D (GC)
Speakers: SB-VK92D (GC)
2
Notes:
1. Specifications are subject to change without notice. Mass and
dimensions are approximate.
2. Total harmonic distortion is measured by the digital spectrum
analyzer.
SA-VK925DGC
CONTENTS
Page Page
1 Operating Procedures 4
2 Disc information
3 Schematic Diagram (Updating)
3.1. (A) DVD Module Circuit
3.2. (B) Main Circuit
3.3. (I) Transformer Circuit
4 Printed Circuit Board (Updating)
4.1. (A) DVD Module P.C.B. (Side A & B)
14
23
24
24
4.2. (B) Main P.C.B.
6
7
7
4.3. (G) Power P.C.B.
4.4. (I) Transformer P.C.B.
5 Illustration of IC's, Transistors and Diodes (Updating)
6 Parts Location and Replacement Parts List (Updating)
6.1. Cabinet
6.2. Packing Materials & Accessories Parts List (Updating)
3
26
28
30
31
32
33
37
SA-VK925DGC
3 Schematic Diagram (Updating)
Note: With reference to page 82~88, 90~98 & 105 (section 22) of the original service manual for SA-VK92DGCS/GS-S.
Below are the updates.
3.1. (A) DVD Module Circuit
SCHEMATIC DIAGRAM - 2
TO
SPINDLE
MOTOR
FP8251
DVD MODULE CIRCUIT
TRV_INNER_SW
1
DGND
2
TRVM+
3
TRVM-
4
SPM+
5
SPM-
6
6.3V220
C8252
0.1
C8251
R8261
82k
R8263
82k
R8264
15K
LB8260 ERJ3GEY0R00V
LB8259 ERJ3GEY0R00V
LB8258 ERJ3GEY0R00V
LB8257 ERJ3GEY0R00V
C8261
0.1
R8262
IC8251
C0GBG0000048
DRIVE IC
C8253
0.1
: +B SIGNAL LINE : CD-DA SIGNAL LINE
C8262
0.1
IC8251
VCC(CH3.4)
GND(CH3.4)
LDCNT
MUTE3
TRIN
BIAS2
LDIN
VIN3
PREVCC
MUTE4
VO3-
VO3+
VO4-
VO4+
28
CL8262
27
CL8252 CL8231
26
25
CL8251 CL8232
24
23
22
FIN
3029
21
20
19
18
17
16
15
C8256
C8231
C8232
0.1
BIAS1
1
VIN1
2
VIN2
3
15K
4
OPIN+
OPIN-
5
OPOUT
6
GND(PRE)
7
FIN
VCC(CH1.2)
8
MUTE12
9
GND(CH1.2)
10
VO2-
11
VO2+
12
VO1-
13
14
VO1+
TRV-I-SW
D+5V
FODRV
TRDRV
AD1
TL8201
R8230
2.2K
R8231
22K
0.1
R8232
7.5K
0.1
R8251
6.8
C8255
16V22
C8257
C8258
16V47
0.1
VHALF
SPMUTE
DRV0
DRV1
M+9V
TRVFTMUTE
TO
OPTICAL
PICKUP
UNIT
CIRCUIT
ON
SCHEMATIC
DIAGRAM-1
FP8531
T+
26
F+
25
F-
24
T-
23
HFM
22
TA(DVD)
21
TB(DVD)
20
TD(DVD)
19
TC(DVD)
18
FE2(DVD/CD)
17
FE1(DVD/CD)
16
GND
15
RF
14
VREF2(RF-)
13
PIN(DVD)
12
LDCD
11
LDGND
10
LDDVD
9
GND(OEIC)
8
VREF1
7
VCC
6
SUB2
5
SUB1
4
PIN(CD)
3
SUBSEL
2
GND(VRCD)
1
C8533 0.1
RX8532
(56 x 4)
RX8531
(56 x 2)
LB8561
LB8551 J0JBC0000042
LB8531 ERJ2GE0R00X
R8531 1.5K
R8532 2.2K
R8533 0
RX8534
(56 x 2)
J0JBC0000042
RX8533
(56 x 2)
C8511 1
C8512 1
C8532
220P
C8531 100P
VIN1
VIN2
VIN4
VIN3
VIN8
VIN7
RFINP
RFINN
LPC1
VREFH
VIN6
VIN5
LPC2
RAM_CD
7
SA-VK925DGC
SCHEMATIC DIAGRAM - 5
DVD MODULE CIRCUIT
IC8611
C3EBGC000044
16M EEPROM IC
(NOT SUPPLIED)
1
A0
2
A1
IC8611
3
A2
4
GND
VCC
SCL
SDA
8
7
WP
6
5
RX8611
(4.7K x 2)
R8611
100
CL8612
CL8611
RX8001
(10K x 2)
RX8691
(10K x 2)
RX8032
(4.7K x 2)
C8611
0.1
STBDAC
CPU_CLK
CPU_CMD
EXTRG0
: +B SIGNAL LINE
SCL
SDA
SBT3
G1C100K00019
A+5V
Y/PY/G
L8330
EXADR15
EXADR14
EXADR13
EXADR12
EXADR11
EXADR10
EXADR9
EXADR8
EXADR19
EXADR20
NEXWE
PNRST
EXADR18
EXADR17
EXADR7
EXADR6
EXADR5
EXADR4
EXADR3
EXADR2
EXADR1
: DVD VIDEO SIGNAL LINE
1
A15
A14
2
3
A13
A12
4
A11
5
6
A10
7
A9
8
A8
9
A19
10
A20
CL8652
11
XWE
12
XRESET
13
NC
14
WP/ACC
RDY/XBSY
15
A18
16
A17
17
18
A7
19
A6
20
A5
A4
21
A3
22
23
A2
24
A1
RFKWMH90E160
16M FLASH ROM IC
C8330
6.3V47
R8334 1K
C8331 0.1
IC8651
IC8651
Q8331
XBYTE
VSS
DQ15/A-1
DQ7
DQ14
DQ6
DQ13
DQ5
DQ12
DQ4
VDD
DQ11
DQ3
DQ10
DQ2
DQ9
DQ1
DQ8
DQ0
XOE
VSS
XCE
R8332
0
EXADR16
48
A16
47
46
EXDT15
45
EXDT7
44
EXDT14
43
EXDT6
42
EXDT13
41
EXDT5
40
EXDT12
39
EXDT4
38
37
EXDT11
36
35
EXDT10
34
33
32
31
30
29
28
27
26
EXADR0
25
A0
R8333
33
R8331
C8651
C8652
EXDT3
EXDT2
EXDT9
EXDT1
EXDT8
EXDT0
NEXOE
NEXCE
100
0.1
Q8321, Q8325, Q8331, Q8335, Q8341
2SB1218ARL
SWITCH
0.1
Y/PY/G_A
CB/PB/B
CR/PR/R
Y
C
10
R8337 1K
C8335 0.1
R8343 1K
C8341 0.1
R8324 1K
C8321 0.1
R8328 1K
C8325 0.1
Q8335
Q8341
Q8321
Q8325
R8322
0
R8326
0
R8336
33
R8335
100
R8342
33
R8341
100
R8323
33
R8327
33
R8321
100
R8325
100
CB/PB/B_A
CR/PR/R_A
Y_A
C_A