Sony DNW-A100 Maintenance Manual page 146

3-9. TBC Remote Control Offset Adjustment (FP-91 Board)
Adjustment without the Shorting Connector
n
Be sure to short-circuit VIDEO CONTROL connector's
pins in the power off.
Never short-circuit this connector's pin 7 (+12 V) or pin
15 (_12 V) to other pin.
1. Turn off the POWER switch.
2. Short-circuit VIDEO CONTROL connector's pin 8
(GND) to one of the satisfied pin on the table below.
3. Turn on the POWER switch.
4. Connect the digital voltmeter to the specified measure-
ment point on the table below.
5. Adjust the voltage on the digital voltmeter.
Adj. points: Refer to table below.
Specification: 2.500 ± 0.001 V dc
6. Repeat from step 1 until completing the adjustments
for all adjustment points.
Pin No. to short-circuit
[Adjusting item]
1 [ SYNC PHASE ]
2 [ CHROMA PHASE ]
3 [ SC PHASE ]
4 [ VIDEO LEVEL ]
5 [ SETUP(BLACK) LEVEL ] TP3/FP-91(C-2) 1RV3/FP-91(C-2)
6 [ CHRAMA LEVEL ]
13 [ Y/C DELAY ]
A
B
1
2
RV1 RV2 RV3
TP1 TP2 TP3
3
MADE IN JAPAN
4
CN224
5
A No.
LOTNO, S NO,
FP-91 Board (Side A)
3-110
Measurement Adjustment
point point
TP6/FP-91(D-2) 1RV6/FP-91(D-2)
TP5/FP-91(D-2) 1RV5/FP-91(D-2)
TP7/FP-91(D-2) 1RV7/FP-91(D-2)
TP1/FP-91(B-2) 1RV1/FP-91(B-2)
TP2/FP-91(B-2) 1RV2/FP-91(B-2)
TP4/FP-91(C-2) 1RV4/FP-91(D-2)
CN147
C D E
RV4 RV5 RV6 RV7
TP4 TP5 TP6 TP7
E1
>EP–GW<
A
FP-91
1-661-138-
CN31
Adjustment with the Shorting Connector
n
Be sure to connect the shorting connector in the power off.
1. Turn off the POWER switch.
2. Connect the shorting connector to VIDEO CONTROL
connector.
3. Turn on the POWER switch.
4. Adjust each voltage on the digital voltmeter.
Measure. point: Refer to the table below.
Adj. point: Refer to the table below.
2.500 ± 0.001 V dc
Specification:
Adjusting item Measurement
point
VIDEO LEVEL TP1/FP-91(B-2)
CHRAMA LEVEL TP2/FP-91(B-2)
SETUP(BLACK) LEVEL TP3/FP-91(C-2)
Y/C DELAY TP4/FP-91(C-2)
CHROMA PHASE TP5/FP-91(D-2)
SYNC PHASE TP6/FP-91(D-2)
SC PHASE TP7/FP-91(D-2)
Perfection
1. Turn off the POWER switch.
2. Reinstall the audio level meter module.
(Perform in the reverse steps 2 and 3 of "Preparation".)
m
. This module's displaying side is glass. Be sure to
handle with care.
. Fix the earth wire and this module (its left part)
together .
3. Reattach the panel for the upper control panel.
4. When the shorting connector was used, remove it.
Adjustment
point
1RV1/FP-91(B-2)
1RV2/FP-91(B-2)
1RV3/FP-91(C-2)
1RV4/FP-91(D-2)
1RV5/FP-91(D-2)
1RV6/FP-91(D-2)
1RV7/FP-91(D-2)
DNW-A100/A50/A45
DNW-A100P/A50P/A45P