Video Section - JVC UX-G950VB Service Manual

Video section

GVA10165-A1(2/2) FOR G650 ALL NI
200
R4500
R4501 NI
R4502 200
R4503 NI
R4504 200
R4505 NI
R4506 200
R4507
NI
R4508 200
R4509 NI
DAC3(R/C.Cr) R_OUT
VGND
VGND
DAC2 (Cb.B) B_OUT
VGND
DAC1 (Y.G) G_OUT
VGND
DAC4 (Y/Comp) Y_OUT
VGND
DAC5 (C) C_OUT
DVD5V
S2
VMUTE
VMUTE
VIDEORGB
VIDEORGB
VIDEOIP
VIDEOIP
VS1
VS3
BLANK_CTRL
SCART_LIN
AGND
SCART_RIN
NOTES
1. VOLTAGES ARE DC-MEASURED WITH A DIGITAL
VOLT METER OR OSCILLOSCOPE WITHOUT INPUT SIGNAL.
CONDITION --- DVD STOP MODE
2. UNLESS OTHERWISE SPECIFIED.
ALL RESISTORS ARE 1/4W 5% CARBON FILM RESISTOR
OR 0.063W 5% THICK FILM CHIP RESISTOR
ALL CAPACITORS ARE CERAMIC CAPACITOR OR
MYLAR CAPACITOR.
NI-->NOT INSERT
B4000
L4003
QUY158-050Y
B4009 VMUTE
FOR U VERSION ONLY
FOR E VERSION ONLY
VIDEOIP
VIDEORGB
VMUTE
ALL RESISTANCE VALUES ARE IN OHM( ).
ALL CAPACITANCE VALUES ARE IN F(P=pF).
ALL E.CAPACITORS ARE SHOWN IN THE FORM
= =
OF CAPACITANCE( F) /RATED VOLTAGE (V). R
ALL INDUCTANCE VALUES ARE IN H(m=mH).
ALL FERRITE BEADS ARE QQR0621-001Z
R
ALL DIODES ARE MA111-X
KRC111S-X
10K KRA102S-X
RT1N140C-X RT1P141C-X
VIDEO DRIVER
IC401
MM1623XF-X
5.3V 5.3V C4402
C4401 VCC
VCC
NI
0.1/16
2.5V
C4403
S-DCOUT
C IN
1/16
3V 2.5V
MUTE1
C OUT
1.6V
C4404
S1
CV IN
10/50
R4400 3.7V
Y MIX S2
+
10k R4401
1.6V 1.8V
C4412 10K
Y IN CV OUT
1/16
0V 0V
GND GND
2.5V 1.8V
C4405
BIAS
Y1 OUT
22/50
C4411
3.1V 2.5V
LPF SW
Y2 OUT
470/10
2.5V 0V
C4406
GND
Y2 IN
1/16
C4410
3.1V 2.5V
RGB SW
Cb OUT
470/10
2.5V 0V
C4407
GND
Cb IN
1/16
3V
2.5V C4409
MUTE2
Cr OUT 470/10
2.5V 0V
C4408
GND
Cr IN
1/16
B4004
C4102
R4102
NI 27K
C4202
R4202
NI
R4300 27K
B4005
1K
SCREEN_MODE Q4302
KRA102S-X
5.3V 5.3V
VS1
0V
VS3
0V
BLANK_CTRL
3.3V
R1
=
R2
R1 R1 R2
R2
RT1N430C-X
4.7K NI
KRC110S-X
R1 R2
RT1N141C-X
10K 10K
KRC102S-X
10K 10K
2-4
J4001
QNN0779-001
7
2
R4001
Y
1
75
R4002 4
Cb
3
75
6
R4003
Cr
5
75
R4004
C4004
470/10
J4002
75
QNN0557-002
R4005
C4005
4 3
0.01/50
75
2 1
5
6
J4002
QNN0557-002
R4006
C4008 7
470/10
75
8
9
J4004
QNZ0775-001
C4100 0.01/50
22
23
R4100
L4000 NI
1 (AUDIO ROUT)
B4006 75
2 (AUDIO RIN)
R4200
3 (AUDIO LOUT)
75
L4001 NI
4 (AUDIO AGND)
B4007
L4002 NI
5 GND
B4008
6 (AUDIO LIN)
R4104
7 B
75
C4103 8 FUNCTION
NI
9 GND
NI
10
R4105 NC
C4104
11 G
75
12 NC
13 GND
C4105 NI
14
GND
R4106 75
15 R/C
R4107 100
16 BLANKING
R4108 10K
17 GND
C4106 NI
18
GND
C4107 R4109
19 COMPOSITE/Y
470/10
75
20 NC
21 GND