JVC UX-G500VB Service Manual page 50

Video section
GVA10151-A1(3/3)
NI
2
EP301
200
R4500
R4502 200
R4504 200
R4506 200
R4508 200
DAC3(R/C.Cr) CROUT
VGND
DAC2 (Cb.B) CBOUT
*
VGND
B4002
DAC1 (Y.G) YGOUT
R4008
2.7
VGND
R4007
DAC4 (Y/Comp) YOUT NI
L4500
VGND
NI
DAC5 (C) COUT
B4129 NI
DVD5V
DVDPWRON
+17V
VMUTE
VMUTE
VIDEORGB
VIDEORGB
VIDEOIP
VIDEOIP
K4006
VS1
NI
K4007
VS3
NI
K4004
BLANK_CTRL
NI
SCART_LIN
AGND
SCART_RIN
IPOD_CV
/ Pb
IPOD_YOUT / Pr
IPOD_COUT / Y
K4008
VIDEOSW_C NI
*
UX-G500V
NI
IC402
NI
IC403
B/W
B4001
B4002 B/W
B4004 B/W
B4006 B/W
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
OR 0.063W 5% THICK FILM CHIP RESISTOR
ALL CAPACITORS ARE CERAMIC CAPACITOR
MYLAR CAPACITOR.
NI-->NOT INSERT
* B4001
K4001
VMUTE
NI
FOR UX-GP7V ONLY
*
FOR U VERSION ONLY
IC403
NI
C4305
FOR E VERSION ONLY
NI
SW IN1
OUT GND
VCC IN2
NI
K4002
VIDEOIP
NI
K4003
VIDEORGB
*
B4006
VMUTE
*
*
IC402
B4004
NI
PrIN2 PrIN1
NI
C4303
CTLA GND
PrOUT PbIN2
GND VCC
PbOUT CTLB
C4304
PyOUT PbIN1
NI
CTLC GND
C4312
PyIN1 PyIN2
NI
UX-GP7V
MM1232XF-X
MM1503XN-X
NI
NI
NI
NI
ALL RESISTANCE VALUES ARE IN OHM( ) .
ALL CAPACITANCE VALUES ARE IN uF(P=pF).
ALL E.CAPACITORS ARE SHOWN IN THE FORM
OF CAPACITANCE(uF) /RATED VOLTAGE (V) .
5% CARBON FILM RESISTOR ALL INDUCTANCE VALUES ARE IN uH(m=mH).
ALL FERRITE BEADS ARE QQR0621-001Z
ALL DIODES ARE MA111-X
OR
VIDEO DRIVER
C4302
0.1/16
IC401
MM1623XF-X
4.8V 4.8V C4402
C4401
VCC VCC
NI 0.1/16
2.3V
C4403
S-DCOUT
0V
1/16 C IN
3.0V 2.3V
MUTE1
C OUT
1.4V
C4404
S1 0V
CV IN
10/50
R4400 0V
Y MIX S2
+ 0V
10K R4401
1.4V 1.7V
C4412 10K
NI Y IN CV OUT
0V 0V
GND GND
2.3V 1.7V
C4405
BIAS
22/50 Y1 OUT
C4411
3.3V 1.7V
LPF SW
Y2 OUT 470/10
C4406 1.4V 0V
GND
1/16 Y2 IN
C4410
0V 2.3V
RGB SW
Cb OUT
470/10
2.3V 0V
C4407
GND
Cb IN
1/16
3.0V
2.3V C4409
MUTE2
Cr OUT 470/10
C4408 2.3V 0V
Cr IN GND
1/16
B4131
C4102
R4102
NI
27K
C4202
R4202
NI
27K
R4300
B4132
4.7K
SCREEN_MODE Q4302
KRA102S-X
4.8V 0V
18.6V
0V
18.6V
4.8V
0V 0V
0V
0V
BLANK_CTRL 0V
R1 R1
R2 R2
R1 R2 R1 R2
RT1N141C-X RT1P141C-X
10K 10K 10K 10K
KRC102S-X KRA102S-X
J401
QNN0779-001
7
2
R4001
Y
1
75
R4002 4
Cb
3
75
6
R4003
Cr
5
75
C4004 R4004
470/10
75 J402
QNN0557-002
C4005 R4005
4 3
0.01/50
75
2 1
5
6
J402
QNN0557-002
R4006
C4008 7
470/10
75
8
9
J404
QNZ0775-001
C4011 C4100 NI
NI 22
R4100
1 (AUDIO ROUT)
75
2 (AUDIO RIN)
R4200
3 (AUDIO LOUT)
75
4 (AUDIO AGND)
5 GND
6
R4104 (AUDIO LIN)
7 B
75
8 FUNCTION
C4103
NI
9 GND
NI
10 NC
R4105
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
2-5