JVC AV-30W475 Service Manual
SCHEMATIC DIAGRAMS
COLOR TELEVISION
AV-30W475 /S,
AV-30W475
CD-ROM No.SML200408
/Y
BASIC CHASSIS
GW
COPYRIGHT © 2004 Victor Company of Japan, Limited.
No.YA095
2004/7
AV-30W475
/S
, AV-30W475
/Y
STANDARD CIRCUIT DIAGRAM
NOTE ON USING CIRCUIT DIAGRAMS
1.SAFETY
The components identified by the symbol and shading are
critical for safety. For continued safety replace safety ciritical
components only with manufactures recommended parts.
2.SPECIFIED VOLTAGE AND WAVEFORM VALUES
The voltage and waveform values have been measured under the
following conditions.
(1)Input signal : Colour bar signal
(2)Setting positions of
each knob/button and
variable resistor
(3)Internal resistance of tester
(4)Oscilloscope sweeping time
(5)Voltage values
Since the voltage values of signal circuit vary to some extent
according to adjustments, use them as reference values.
: Original setting position
when shipped
: DC 20kΩ/V
: H
: V
: Othters
: All DC voltage values
20µs / div
5ms / div
Sweeping time is
specified
3.INDICATION OF PARTS SYMBOL [EXAMPLE]
In the PW board
: R1209
R209
Type
No indication
MM
PP
MPP
MF
TF
BP
TAN
(3)Coils
No unit
Others
(4)Power Supply
Respective voltage values are indicated
(5)Test point
: Test point
(6)Connecting method
: Ceramic capacitor
: Metalized mylar capacitor
: Polypropylene capacitor
: Metalized polypropylene capacitor
: Metalized film capacitor
: Thin film capacitor
: Bipolar electrolytic capacitor
: Tantalum capacitor
: [µH]
: As specified
: B1
: 9V
: Connector
: Receptacle
: Only test point display
: Wrapping or soldering
: B2 (12V
: 5V
)
4.INDICATIONS ON THE CIRCUIT DIAGRAM
(1)Resistors
Resistance value
No unit : [Ω]
K
M
Rated allowable power
No indication : 1/16 [W]
Others : As specified
Type
No indication
OMR
MFR
MPR
UNFR
FR
Composition resistor 1/2 [W] is specified as 1/2S or Comp.
(2)Capacitors
Capacitance value
1 or higher : [pF]
less than 1
Withstand voltage
No indication : DC50[V]
Others : DC withstand voltage [V]
AC indicated
Electrolytic Capacitors
47/50[Example]: Capacitance value [µF]/withstand voltage[V]
: [kΩ]
: [MΩ]
: Carbon resistor
: Oxide metal film resistor
: Metal film resistor
: Metal plate resistor
: Uninflammable resistor
: Fusible resistor
: [µF]
: AC withstand voltage [V]
(7)Ground symbol
: LIVE side ground
: ISOLATED(NEUTRAL) side ground
: EARTH ground
: DIGITAL ground
5.NOTE FOR REPAIRING SERVICE
This model's power circuit is partly different in the GND. The
difference of the GND is shown by the LIVE : ( ) side GND and the
ISOLATED(NEUTRAL) : ( ) side GND. Therefore, care must be
taken for the following points.
(1)Do not touch the LIVE side GND or the LIVE side GND and the
ISOLATED(NEUTRAL) side GND simultaneously. if the above
caution is not respected, an electric shock may be caused.
Therefore, make sure that the power cord is surely removed from
the receptacle when, for example, the chassis is pulled out.
(2)Do not short between the LIVE side GND and ISOLATED(NEUTRAL
side GND or never measure with a measuring apparatus measure
with a measuring apparatus ( oscilloscope, etc.) the LIVE side GND
and ISOLATED(NEUTRAL) side GND at the same time.
If the above precaution is not respected, a fuse or any parts will be broken.
Since the circuit diagram is a standard one, the circuit and
circuit constants may be subject to change for improvement
without any notice.
NOTE
Due improvement in performance, some part numbers show
in the circuit diagram may not agree with those indicated in
the part list.
When ordering parts, please use the numbers that appear
in the Parts List.
)
2-1(No.YA095)
CONTENTS
SEMICONDUCTOR SHAPES ......................................................................2-2
BLOCK DIAGRAM........................................................................................2-3
CIRCUIT DIAGRAMS....................................................................................2-5
MAIN PWB CIRCUIT DIAGRAM (1/2) ........................................................................................................ 2-5
MAIN PWB CIRCUIT DIAGRAM (2/2) ........................................................................................................ 2-7
AV SELECTOR PWB CIRCUIT DIAGRAM ................................................................................................. 2-9
CRT SOCKET PWB CIRCUIT DIAGRAM .................................................................................................. 2-11
SIDE CONTROL PWB CIRCUIT DIAGRAM ............................................................................................. 2-13
FRONT CONTROL PWB CIRCUIT DIAGRAM .......................................................................................... 2-15
PATTERN DIAGRAMS .............................................................................. 2-17
MAIN PWB PATTERN .............................................................................................................................. 2-17
AV SELECTOR PWB PATTERN ............................................................................................................... 2-19
CRT SOCKET PWB PATTERN ................................................................................................................. 2-20
SIDE CONTROL PWB PATTERN ............................................................................................................. 2-21
FRONT CONTROL PWB PATTERN ......................................................................................................... 2-22
CHANNEL CHART (US) ............................................................................. 2-23
CHANNEL CHART (CA)............................................................................. 2-24
SEMICONDUCTOR SHAPES
TRANSISTOR
BOTTOM VIEW FRONT VIEW TOP VIEW
CHIP TR
E
C
B
ECB
B
(G)E(S)C(D)
ECB
ECB
IC
BOTTOM VIEW FRONT VIEW TOP VIEW
OUT
E
IN
IN OUTE
1 N
1 N
1
CHIP IC
TOP VIEW
N
N
N
1
N
1
N
C
BE
N
(No.YA095)2-2
U
S
E
L
O
C
BLOCK DIAGRAM
INPUT 3
V3
L3
R3
INPUT 1
INPUT 2
AUDIO
OUT
INPUT 2
COMPONENT
VIDEO
Y/C
V1
L1
R1
L2
R2
L
R
Y/V2 V2
Pb
Y, R-Y, B-Y
Pr
SIDE CONTROL
PWB
TU001
TUNER
IF
AUDIO OUT L/R
MPX
IC101
IF / DET
L1/R1
L2/R2
VTV
IC5501
AV SW
VTV
V1
V2
V3
Y/C
V2
Y IN
Y
C IN
Y PROCESS
CHROMA
PROCESS
Pb, Pr
Y/C
SYNC.
SEP
Y/C
L3/R3
VM
SVM_OUT
IC5001
TV SW
MTS DECODE
R/G/B
CUTOFF
DRIVE
BASE BAND
PROCESS
HORIZONTAL
PROCESS
V
Y/C
RGB
H_OUT
3L DIGITAL
IC201
SW
IC5201
COMB
FILTER
MTS DECOD
SURROUND
MAIN
VIDE
SYN
VERTICA
PROCESS
V_O
O
G
2-3(No.YA095)
LF901
D901
Y, R-Y, B-Y
IC911 IC921
POWER REG ERROR AMP
T921
SW
TRANSF.
PC921
VOLTAGE
FEEDBACK
B1
H
V
AV SELECTOR PWB
ROTATION COIL
Q5901~Q5908
ROTATION
DRIVE
L
IC5701
D-A CONVERT.
CRT SOCKET PWB
CODE/AUDIO CONTROL/AUDIO SELECT
CONTROL
OSD R/G/B/Ys/I
GENERATE
CLOSED
CAPTION
DECODER
PROCESS
V_OUT
TONE
EW
UND
MAIN CPU/CLOSED CAPTION DECODE/
VIDEO PROCESS/RGB PROCESS/
SYNC. SEP/DEF PROCESS
ICAL
ESS
VOLUME
CONTROL
SCL0
SDA0
MICOM
SCL1
SDA1
EW
Q3304
R/G/B
Q3306
L/R
RGB OUT
CRT
Q3103
Q3107
Q3109
VM AMP
V
MEMORY
L / R
IC421
VERT OUT
IC641
SURROUND
IC651
BBE
Q541~Q543
SIDE PIN OUT
VM
IC621
AUDIO OUT
VM COIL
SPEAKER L
SPEAKER R
DEF
YOKE
V
MAIN PWB
H
Q511
H OUT
H
B1
FOCUS
T502
HVT
SCREEN
(No.YA095)2-4
-
CIRCUIT DIAGRAMS
X
MAIN PWB CIRCUIT DIAGRAM (1/2)
VIDEO-2
Y/V2
Pr
Pb
COUT
YOUT
10/50
OPEN
.22
*6
75
OPEN
.1
OPEN
OPEN
OPEN
*6
75
OPEN
.1
*6
75
Y_IN
Cb_IN
Cr_IN
10p
10/16
2.7K
.01
5.6K
*2
5.6K
1K
3.9K
1.8K
68p
56
OPEN
3.3K
47K
1.5K
*2
AHSSW
X
10/16
10/16
LI
RI
LOUT
ROUT
FIL1
VOL
FIL2
TEST1
*2
10K
*2
AHSMODE
1K
NC
0.027
4700p
10/50
47K
5.6K
*2
1K
22K
10/50
AV SELECTOR PWB
A_MUTING
MTS_ADJ
EXT.COMP2
5V_GND
5V_GND
9V_GND
9V_GND
AHSMODE
AGC_MUTE
EXT_COMP2
TUNER
AGC NC ADRS SCL SDA NC 5V NC 30V NC IF
6.8K
0
4.7/50
*4
OPEN
BBESW
A_MUTING2
AHSSW
AHSMODE
L
GND
R
COUT
YOUT
L
GND
R
GND
MPX
GND
GND
SDA0
SCL0
GND
BBESW
FSC
5V
5V
9V
9V
NC
GND
GND
AHSSW
GND
COUT
YOUT
GND
GND
VTV
V2
22K
100 100
10/50
56
470/6.3
OPEN
OPEN
OPEN
BT
.39
5.6k
.01
BW
.01
18
.01
1.8k
82
1K
22K
*2
.01
10K
100
.01
560
1K
*1
.01
27
10/50
10/50
3.3k
M52342FP-X
.01
1k
47p
47p
22
33K
22K
22
470
330
820
EXT_COMP2
AFT
OPEN
100
.01
.01
.22
47/25
.01
1k
390K
27K
100
330K
100
27K
OPEN
OPEN
.01
680p
100K
.01
.01
68
.47/50
EHT
Y_IN
Cr_IN
Cb_IN
560
220K
OPEN
2.2M
1
OPEN
470
100/16
.01
120K
100 100
.01
OPEN
OPEN
10K
.01
*5
2.2/50
100K
4.7K
.01
10/50
1k
.1
NOTE
2-5(No.YA095)
*1
*2
*3
*4
*5
*6
*7
*8
*9
*10:PNP TE 25A933AS/QR/_3
*11:SI DIODE RGP10J-04TS-T3
CHIP PNP Tr
:
CHIP NPN Tr
:
CHIP PNP D-Tr
:
CHIP NPN D-Tr
:
SI DIODE
:
ZENER DIODE
:
ZENER DIODE
:
SI DIODE
:
SI DIODE
:
2SA1530A/QR/-X
2SC3928A/QR/-X
DTA124EKA-X
1SS133-T2
MTZJ9.1C-T2
MTZJ5.6A-T2
RGP10J-5025-T3
1SR35-400A-T2
OR
OR
OR
OR
OR
2SB709A/QR/-X
2SD601A/QR/-X
UN2112-X
UN2212-XDTC124EKA-X
1N4003-T2
BW
X
:
:
:
0
:
:
*
BUS WIRE
NON-MOUNT( OPEN)
SAFETY PARTS
0 RESISTOR
Ħ
DIFFERENCE
PARTS
MAIN PWB ASS'Y
SGW-1001A-M2 : AV-30W475/S
SGW-1002A-M2 : AV-30W475/Y
IC101-22
2 Vp-p
IC201-6
(H)
4.5 Vp-p
IC201-13
µ
s)
(0.2
2 Vp
X
X
NC
SW1
LOUT
ROUT
TEST2
VREFIN
VOL
VCC
TEST1
NC
1/50
7
10/50
47K
Y_IN
Cb_IN
00/16
.01
100
100 100
PEN
0.47/50
.0015
2.2/50
4.7K
22KOPEN
10/50
1k
1
CRT SOCKET PWB
-13
(V)
DC (V
)
MODE
DC (V
PIN NO.
18 4.4
19 4.4
20 4.4
IC702
1 0
2 0
3 0
4 0
5 4.8
6 4.7
7 0
8 5
IC703
1 0
2 5
3 5
IC704
1 12.5
2 0
3 4.7
IC852
1 15.6
2 8.8
3 0
IC853
1 7.9
2 4.9
3 0
IC860
1 0
2 2
3 4.9
4 0.8
5 4.9
6 4.7
7 0.2
8 0
9 4.9
10 0
11 4.9
12 0.2
13 0
14 4.9
15 0
16 4.9
Q001
E 0
C 3.9
B 0
Q101
E 1
C 8.8
B 1.7
Q131
E 2.2
C 0
B 1.6
Q161
E 2
C 5.7
B 2.7
Q211
E 3.7
C 8.8
B 0
Q232
E 0
C 0.9
B 0.1
Q233
E 3.3
C 8.8
B 4
Q352
E 8.1
C 8.8
B 9
Q353
E 0
C 9
B 0
Q621
E 0
C 0.2
B 0
Q622
E 0
C 0.2
B 0
Q623
E 10.3
C -0.9
B 10.4
Q625
E 0
C 19.3
B 0
Q641
E 0
C 1.3
B 0.1
Q642
E 0
C 0
B 0.7
Q701
E 3.7
C 2.4
B 3
Q861
E 0
C 4.9
B 0
TU001
1 3.9
2 0
3 4.8
4 3.7
5 3.9
6 4.7
7 4.8
8 0
9 31.4
10 0
11 0
)
MODE
PIN NO.
IC101
1 2
2 2.5
3 3.9
4 1.4
5 1.4
6 0
(H)
7 0
8 0
9 0
10 4.2
11 2.5
12 4.2
13 2.1
14 3.5
15 2.1
16 8.8
17 8.8
18 3.9
19 3.9
20 4.8
21 4.8
22 3.3
23 3.3
24 2.1
IC201
1 0
2 1.5
3 4.7
4 0
5 5
6 2.2
7 2
8 0
9 5
10 0
11 0
12 0
13 1.1
14 1.9
15 8.8
16 6.3
17 3.5
18 4.2
19 4.5
20 0
21 0
22 2.1
23 2.3
24 2.1
25 3.5
26 2.2
27 3.5
28 2.4
29 0
30 2.2
31 6.1
32 0
33 1.9
34 3.5
35 1.7
36 2.7
37 2.8
38 4.8
39 2
40 1.9
41 1.9
42 8.8
43 4.3
44 0
45 0
46 5
47 0
48 0
49 3.9
50 3.7
51 4.8
52 0
53 4.7
54 0
55 4.9
56 0
IC621
1 3.1
2 10
3 3.1
4 3.1
5 0
6 11.4
7 19.3
8 10
9 19.8
IC641
1 4.4
2 4.4
3 4.4
4 4.4
5 4.4
6 8.8
7 0
8 0
9 0.1
10 4.4
11 4.4
12 4.4
13 4.4
14 4.4
IC651
1 4.4
2 4.4
3 4.4
4 4.4
5 4.4
6 4.4
7 4.4
8 8.8
9 8.8
10 1.6
11 0
12 8.8
13 4.4
14 4.4
15 4.4
16 4.4
17 4.4
!
A_MUTING2
0
BBESW
10K
10/50
10K
SW2
GND
100/16
FBP
EW
V_OUT
H_OUT
.01
.01
100/16
OPEN
150k
3.9K
2.2/50
.47
1.8K
100
680
TM8812CSDNG5JB4
OPEN
.0033
22K
22K
1uF
BPF_R
HPF_R
CR1_R
L_INPUT
BPF_L
CR1_L
HPF_L
R_INPUT
1uF
22K
22K
.0033
OPEN
X
.01
X
22K
100P
0
X
22K
FBP
AGC_MUT E
BLANKING
22
OPEN
100/16
4.7k
2.7k
.01
0.01
47/25
.033
GN
VCC
VREF
CR_R
LPF_R
L_OUTPUT
ON_OFF
L_BOOST
CR2_L
LPF_L
H_BOOST
R_OUTPUT
BBE
0
.033
0
10K
10/50
X
X
68K
220P
X
TC74HC4538AF-X
150P
560K
OPEN
X
330K
QVP0087-203Z
OPEN
22
22
22p
AFT
120K
10K
4.7K
180k
22p
0.01
1K
0.01
( 64K)
GND GND
X
10/50
OPT
12K
OPEN
1K
10/50
4.7K
*2
2.2K
X
*5
22K
4.7K
BLANKING
10K
*5
10/50
X
4.7/50
12K
X
OPT
OPEN
1K
*2
4.7/50
open
*5
BW
X
X
100
X
10/50
10/50
MICOM/V/C/DEF
2.2K
2.2K
2.2K
1/50
.01
100
100
100
220/6.3
22
*5
*5
*5
*5
*5
*5
B
R
G
NC
VM
GND
SKT_Vcc
IC201-14
.01
22k
100/16
.01
100/16
.01
22
22
22
33K
IC201-18
(H)
4.7K
4.7K
4.7K
100
100
1K
6.8K
10K
*1
10K
(V)
1K
1K
100
4.7K
.001
100
100
OPEN
220
220
220
220
NC
GND
SCL0
SDA0
SCL1
SDA1
SIDE CONTROL PWB
IC201-19
470/10
AT24C08-30W475
open
QGA2501C5-03Z
KEY
GND
STB5V
IC201-26
(V)
GND
STB5V
LED_P
KEY
REMOCON
NC
IC201-28
(H)
TFA9843J/N1
VCC
SVR
CIV
GND
CH1 IN
CH1 OUT
1uF
22/50
*2
*1
*5
220/25
10/50
1K
0
10K
*2
33K
OPEN
MODE
CH2 IN
CH2 OUT
470/25
1uF
OPEN
220/25
4.7K
*5
10K
10K
100k
V_OUT
H_OUT
FBP
EW
BT
EHT
*2
*6
47/25
0
12K
OPEN
1/50
*2
OPEN
OPEN
OPEN
220/16
OPEN
82
82
OPEN
OPEN
BA17809TOR
AN7809F
HS007
CEHT11B-002QS
BA17805T
AN7805F
220/16470/6.3
1000/25
QGA2501C5-04Z
ROT
R_GND
OPEN
OPEN
220/25
LOT
L_GND
OPEN
OPEN
1000/25
OR
OR
OR
GND
AU_VCC
12V
15V
9V_VC
STB_VCC
8V
5V
GND
V_OUT
H_OUT
FBP
EW
STB_5V
BT
EHT
ABL
PANORAMA
SCL0
SDA0
MAIN_POW
SPEAKER(L/R)
MAIN PWB(2/2)
FRONT CONTROL PWB
IC201-37
(H)
IC201-39
µ
s)
(0.2
IC201-40
(H)
IC201-41
(H)
2 Vp-p
5 Vp-p
2.5 Vp-p
2 Vp-p
0.8 Vp-p
1 Vp-p
0.4 Vp-p
3 Vp-p
2.5 Vp-p
2.5 Vp-p
(No.YA095)2-6
(
MAIN PWB CIRCUIT DIAGRAM (2/2)
!
!
!
!
!
OPEN
OPEN
!
OPEN
OPEN
!
.001
22K
22K
HS002 HEAT SINK
LC31678-001A
OVP
TSD
OSC
DRIVE
100/50
GND
Vcc
!
680
470p
*5
MAIN PWB(1/2)
H_OUT
PANORAMA
EW
GND
8V
BT
15V
STB_VCC
GND
AU_VCC
MAIN_POW
!
2.7M
15V
BT
GND
STB_VCC
GND
8V
AU_VCC
!
!
MAIN_POW
!
STB_VCC
470/25
!
OPEN
OPEN
!!
.001
!
*5
BW
47K
0
82
180
*5
220/16
1K
OPEN
GND
MAIN_POW
!
!
!
!
.001
.001
560/200
BW
!
.01/400
680K
.15
2200p
.18
OPEN
2.2K
*5
330p
.0018
!
47
OPEN
OPEN
BW
.001
!
1000/35
1500p
OPEN
BW
!
BW
1000/25
BW
OPEN
1000p
OPEN
220/160
OPEN
BW
OPEN
OPEN
220p
BW
OPEN
OPEN
47
47
OPEN OPEN
OPEN
!
1000/25 1000/16
470/25
2WMFR
18K
AU_VCC
47
8V
15V
GND
BT
1/50
9V_VC
B1
2-7(No.YA095)
*1
CHIP PNP Tr
:
NOTE
*2
CHIP NPN Tr
:
*3
CHIP PNP D-Tr
:
*4
CHIP NPN D-Tr
:
*5
SI DIODE
:
*6
ZENER DIODE
*7
ZENER DIODE
:
*8
SI DIODE
:
*9
SI DIODE
:
*10:PNP TE 25A933AS/QR/_3
*11:SI DIODE RGP10J-04TS-T3
2SA1530A/QR/-X
2SC3928A/QR/-X
DTA124EKA-X
DTC124EKA-X
1SS133-T2
MTZJ9.1C-T2
MTZJ5.6A-T2
RGP10J-5025-T3
1SR35-400A-T2
!
3.3K
2SB709A/QR/-X
OR
2SD601A/QR/-X
OR
UN2112-X
OR
OR
UN2212-X
OR:1N4003-T2
*5
LIVE
.1
: BUS WIRE
X
: NON-MOUNT( OPEN)
:
SAFETY PARTS
:
0BW0 RESISTOR
DIFFERENCE
*
:
ISOLATED
!
!
VOLTAGE
FEED BACK
!
PARTS
2.2K
OPEN
!
MAIN PWB ASS'Y(2/2)
SGW-1001A-M2 : AV-30W475/S
SGW-1002A-M2 : AV-30W475/Y
IC421-1
0.6 Vp-p
IC421-3
(V)
30 Vp-p
IC421-5
(V)
58 Vp-p
IC421-6
(V)
34 Vp-p
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