Sony VPH-G90U Service Manual page 452

DE BOARD (1/2) IC19
CXA1470AS
1
VCC 1
2
HBLK DELAY CONTROL
VCC
D/DT
SET
FLIPFLOP
2
RESET
–
VEE
+
H.SQ 3
4
V.SQ
V.BLK 5 D/DT
V.GND 6
V.AGC 7
REGULA VCC
3 D/DT
TOR
SET
FLIPFLOP
RESET
–
+
VEE
V.GEN 8
V.SAW+ 9
V.SAW- 10
V.PARA+ 11
V.PARA- 12
V.SIN 13
4
V4 14
5
A B
+
–
CENTER OFFSET
PULSE DETECTOR
–
+
–
+
– –
+ +
COSINE
GENERATOR
AMP
V-BIAS
SINE
PEAK DETECTOR
GENERATOR
V-BIAS
CENTER OFFSET
–
PULSE DETECTOR
+
–
+
–
+
C
DE DE (2/2)
DE MOUNT (2/2) VOLTAGES
Pin No. IC100
1 _0.6 (_0.4) 0.1 (0)
28 VEE
2 0
27 IREF
3 0
26
V.BIAS
25 VREF
4 0
24
H.BIAS
5 0
23 H.DLY
6 GND
7 4.9
22 H.GND
8 2.3 (0)
21 H.AGC
9 2.3 (2.4)
20 H.SAW-
19 H.SAW+
10 0.7 (0)
11 _0.4 (_0.1) 0
12 _0.4 (0)
13 0
14 0
15 0
16 0
18 H.PARA+
17 0
17 H.PARA-
18 4.9
16 OFFSET
19 _5
20 0
21 5
V4
MIX
22 _0.9 (_1.1) 0.3 (0.4)
23 _0.9 (_0.5) 0.3 (0.4)
24 _0.9 (_1.1) 0
–
+
Pin No. IC118
15 V.CLP
1 0
2 0
3 0
4 0.3 (0.5)
5 0.3 (0.5)
6 GND
7 4.9
8 0.3 (0.5)
9 0.3 (0.5)
10 0
11 0
12 0
13 N.C
14 0.3 (0.5)
15 GND
16 0
17 0
18 4.9
19 _5
20 4.9
21 5
22 0.3 (0.5)
23 0.3 (0.5)
24 0
Note: No Mark is VIDEO signal and common. ( ) Mark is Component signal.
10-90 10-90
D E
IC101 IC102 IC106 IC107 IC108
0 0 0 0
0 (0.1) 0 0 0 0
0.1 (0.2) 0 0 0 0
0.3 (0.4) 0 2.3 0.3 (0.4) 0
0.3 (0.4) 0 2.3 0.3 (0.4) 0
GND GND GND GND GND
4.9 4.9 4.9 4.9 4.9
0.3 (0.4) 0 2.3 0.3 (0.4) 0
0.3 (0.4) 0 2.3 0.3 (0.4) 0
0 0 0 0 0
0 0 0 0
0 0 0 0 0
0 0 0 (0.1) N.C N.C
0.3 (0.4) 0 2.3 0.3 (0.4) 0
0.3 (0.4) 0 2.3 GND GND
0 0 0 0 0
0 0 0 0 0
4.9 4.9 4.9 4.9 4.9
_5 _5 _5 _5 _5
0 0 4.9 4.9 4.9
5 5 5 5 5
0 2.3 0.3 (0.4) 0
0 2.3 0.3 (0.4) 0
0 0 0 0
IC119 IC123 IIC124 IC125 IC129
0 0 0 0 0
0 0 0 0 0
0 0 0 0 0
0 0 0 0 0
0 0 0 0 0
GND GND GND GND GND
4.9 4.9 4.9 4.9 4.9
0 0 0 0 0
0 0 0 0 0
0 0 0 0 0
0 0 0 0 0
0 0 0 0 0
N.C 0 0 0 0
0 0 0 0 0
GND 0 0 0 GND
0 0 0 0 0
0 0 0 0 0
4.9 4.9 4.9 4.9 4.9
_5 _5 _5 _5 _5
4.9 4.9 4.9 4.9 4.9
5 5 5 5 5
0 0 0 0 0
0 0 0 0 0
0 0 0 0 0
F
IC111 IC112 IC113 IC117
0 0 0 0
0 0 0 0
0 0 0 0
0 0.3 (0.5) 0 0
0 0.3 (0.5) 0 0
GND GND GND GND
4.9 4.9 4.9 4.9
0 0.3 (0.5) 0 0
0 0.3 (0.5) 0 0
0 0 0 0
0 0 0 0
0 0 0 0
0 0 0 N.C
0 0.3 (0.5) 0 0
0 0.3 (0.5) 0 GND
0 0 0 0
0 0 0 0
4.9 4.9 4.9 4.9
_5 _5 _5 _5
4.9 4.9 4.9 4.9
5 5 5 5
0 0.3 (0.5) 0 0
0 0.3 (0.5) 0 0
0 0 0 0
IC130 IC131
0 0
0 0
0 0
0 0
0 0
GND GND
4.9 4.9
0 0
0 0
0 0
0 0
0 0
0 0
0 0
GND GND
0 0
0 0
4.9 4.9
_5 _5
4.9 4.9
5 5
0 0
0 0
0 0
VPH-G90J/G90E/G90U/G90M
G H