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3-13 (E)
HDCU-900 MM
3-4. Video Signal System Adjustment (RC-86 Board)
3-4-3. Main Clock (74 MHz) Duty Adjustment
Measure : Oscilloscope (20 MHz BWLimit: ON)
Note
This adjustment corresponds to the RC-86 board with part
No. suffix -14.
Preparation
. Board extension : RC-86 board (front side)
Adjustment Procedure
Measuring point : TP201 (C-6)/RC-86
Adjusting point : 1RV201 (C-6)/RC-86
Specifications : C = 1.65 ±0.04 Vdc
A
B
A=B
C
GND
RC-86 board (A side)
3-4-4. Return Clock (74 MHz) Duty
Adjustment
Measure : Oscilloscope (20 MHz BWLimit: ON)
Note
This adjustment corresponds to the RC-86 board with part
No. suffix -14.
Preparation
. Board extension : RC-86 board (front side)
Adjustment Procedure
Measuring point : TP703 (B-2)/RC-86
Adjusting point : 1RV701 (B-2)/RC-86
Specifications : C = 1.65 ±0.04 Vdc
A
B
A=B
C
GND
A
B
C
D
E
F
G
H
J
K
L
M
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S803
RV351
RV354
S801
S802
S811
11
RV353
RV350
RV352
1
1
TP603
TP352
RV601
COR601
TP350
TP351
1
TP501
RV501
1
TP502
RV502
COR501
TP201
RV201
1
TP703
RV701
1
Suffix:14_
Suffix:14_
1
1