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(For Display) - Hitachi VK-S274R Service Manual

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1
2
2-2 PC Schematic Diagram (For Display)

(For Display)

G
A-a
A-b
+
(For Printing)
F
E
To
LENSE
UNIT
D
3.3
0
3.0
0
7.2
6.4
C
7.2
0
7.2
0
7.2
6.4
7.2
0
B
1.7
4.2
A
1.1
1
2
3
3.0
0
2.0
1.5
1.1
0
0
0
3.1
3.1
1.6
0
0
0
3.1
CDS/AGC &
1.2
A/D CONV
1.6
1.9
3.1
3.1
3.1
0
0
0
To
3.2
SP
0
PG1001
2.0
1.0
3.3
3.3
0
0
3.3
3.3
3.3
3.3
7.2
6.4
0
0
3.3
0
3.3
0
3.3
0
3.3
3.3
0
0
0
0
0
0
0
0
7.2
7.2
0
0
7.2
7.2
7.2
7.2
7.2
0
0
0
7.2
7.2
ZOOM MOTOR DRIVE
ZOOM MOTOR DRIVE
7.2
6.4
3.3
0
0
0
0
3.3
0
2.6
F.DET/IRIS DRIVE
2.2
0
0
1.4
2.2
1.3
2.5
2.1
2.2
2.2
2.2
0.6
2.1
2.0
2.1
2.0
2.9
2.9
2.2
2.6
0
5.0
4.2
0
5.0
BIAS
2.7
3.3
2.0
1.4
3
4
5
0
0
0
3.3
3.3
0
3.2
0
3.0
0.4
0
3.0
0
3.3
0
3.1
0
0
0 0
3.3
3.3
0
3.3
0
0
2.0
3.3
0
0
3.3
3.3
0
0
3.3
0
3.3
0
3.3
3.3
0
3.3
3.3
0
0
3.3
BLM11B750SPT BLM11B750SPT
2.0
0
3.3
0
0
0
BLM11P600SPT
3.3
3.3
0
3.3
0
3.3
0
3.3
0
3.3
0
3.3
0
3.3
0
3.3
0
3.3
3.2
3.3
3.3
3.3
0
0
3.3
3.3
0
3.3
3.2
0
STBY_5V
0
0
3.3
3.3
0
0
0
3.3
0
0
0
RDCW
3.3
3.3
3.3
ZD-PWMA
0
0
0
3.3
0
0
3.3
0
HD6432238RN41FA
0
0
3.3
CAMERA µP
0
3.3
2.3
0
1.7
3.3
0
3.3
1.8
0
0
5V_DET
0
1.6
0
2.0
2.8
3.3
0
0
1.7
0.6
+B_DET
1.3
0
0
3.3
3.3
0
4
5
- 3 -
6
7
3.3
0
3.3
0
3.3
3.3
3.3
0
3.3
0
0
0
3.3
0
0
0
0
3.3
3.3
2.0
0
0
3.1
0.8
0.3
2.0
0
0.8
0.6
0.4
0.2
3.1
CAMERA DSP
0
0
3.1
1.4
3.1
0.8
0
0
0
3.1
0
0
2.5
0
-
0
3.3
-0.5
0
0
3.3
3.3
0
0
0
3.3
0.8
1.5
0
3.0
0.3
0
3.3
3.1
0
0
INV.
TC7SHU04FUL
INV.
0
3.0
3.3
0.3
0
3.1
0
0.5p
9p
9p
0.5p
S274ER/K274ER
S274R/K274R
X1172
28.5MHz
28.6MHz
NOTE:
VOLTAGES ARE MEASURED WHEN CAMERA IS
POINTED AT THE COLOR BAR CHART.
3.0
0
3.3
3.3
3.3
3.3
0
0
0
0
0
0
3.0
0
3.0
3.0
0
0
RESET PULSE GEN
3.3
0
RESET PULSE GEN
3.3
0
3.3
RESET PULSE GEN
3.3
0
0
0
0
3.3
0
3.3
3.3
0
PC
6
7
8
G
3.3
3.3
0
0
3.3
0
3.3
0
F
3.3
0
0
3.3
3.1
0
0
0
0
3.3
3.3
0
0
3.3
3.3
0
3.3
0
0
0
0
3.3
5.0
0
3.3
3.3
0
3.3
0
0
5.0
5.0
G
0
0
DRAM
5.0
E
0
0.5
0
3.8
3.1
5.0
0
0
[S274R/S274ER]
D
C
CODE
PART NAME
AR
2SB1462
BR
2SC2412K
CQ
2SC2411K
E6
TC7SU04FU
LD
2SC2462-LD
H9
UMH9N
F7
KV1470
B
K
DA221
MO
MA132WA
3.0L
MA3030L
A
8

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