Bright Calibration Adjustment - Sony DXF-701 Service Manual

3-2-7. Operational Amplifier Output Adjustment
Note: When this adjustment is carried out, "3-2-5.
Focus Adjustment" and "3-2-2.Heater Voltage
Pre-Adjustment" must be confirmed.
Equipment: Digital voltmeter
1. Lens iris of Video camera → Close "C"
2. BRIGHT control (Viewfinder)
3. CONTRAST control (Viewfinder)
4. PEAKING control (Viewfinder)
Test point: TP12/MAIN board
Adjusting point: 1RV14 (OP-ADJ)/MAIN board
6.0 ±0.5 V
Specification:
RV11
(PEAKING) (CONTRAST)
RV10 RV12
(PEAK-OFFSET) (SUB-BRIGHT)
CN9
SUB BOARD -COMPOMENT SIDE-
CN7
CN1
CN6
CN8
CN3 CN2
RV4
(VH-ADJ)
RV2
(H-SIZE)
RV3
(FOCUS)
RV14
(OPAMP-ADJ)
RV15
(V-SIZE : WIDE)
(DXF-701WS/701WSCE only)
RV7 RV8 RV6
(V-SIZE) (V-LINE) (V-HOLD)
CN4 CN5
MAIN BOARD -COMPOMENT SIDE-
DXF-701 (UC)
DXF-701CE (CE)
→ Fully counterclockwise 3
→ Fully counterclockwise 3
→ Fully counterclockwise 3
RV9 RV13
(BRIGHT)
RV1
(VO-ADJ)
RV5
(H-HOLD)

3-2-8. Bright Calibration Adjustment

Preparation:
1. OUTPUT/DL/DCC+ switch/camera side → BARS
2. BRIGHT control (Viewfinder)
3. CONTRAST control (Viewfinder)
Adjustment:
Adjust the picture by turning 1RV12 (SUB-BRIGHT)/
SUB board clockwise 2 from fully counterclockwise 3
position so that the picture of the white part just appears on
the monitor screen.
TP1 TP3
TP4
TP5
TP6
TP7
R76
MAIN BOARD -SOLDERING SIDE-
→ Fully counterclockwise 3
→ Fully counterclockwise 3
TP2
TP12
TP11 TP8 TP9
TP10
3-5 (E)