Horizontal Hold Adjustment; Bright Set Adjustment - Sony BVP-550 Maintenance Manual

4-3. Viewfinder System Adjustment

4-3-2. Horizontal Hold Adjustment

Equipment : Frequency counter
Preparations:
Extend the IF-510 board of BVP-550/550P with EX-464
extension board.
Disconnect the RET IN connector on CCU-700/700P.
Short between 45-pin and 92-pin on the EX-464 board
using a shorting clip.
Set 1RV6 (V SIZE)/VF-60 board to the mechanical center
position.
(When 1RV6 is marked, it should not be turned.)
Adjustment procedures
Test point
: TP1/VF-60
GND
: E1/VF-60
Adjustment point : 1RV3 (H HOLD)/VF-60
: 15.73 ±0.05 kHz (for NTSC)
Specifications
15.63 ±0.05 kHz (for PAL)
After adjustment is completed, disconnect the shorting clip
on the EX-464.
Connect the IF-510 board to the camera.
E1
RV9
RV5
RV3
RV4
TP2
RV7 RV10 RV6
TP3
CN4
VF-60 BOARD (A SIDE)
4-22 (E)
TP5
RV8
TP4
CN2
CN5
RV1
CN1
RV2
TP1

4-3-3. Bright Set Adjustment

Preparations:
OUTPUT/DCC switch (on the side panel of BVP-550/
550P) → BARS/OFF
BRIGHT control (on the viewfinder) → Fully turn counter-
clockwise
CONTRAST control (on the viewfinder) → Fully turn
clockwise
Measurement point : viewfinder
: 1RV9 (SUB BRIGHT)/VF-60
Adjustment point
Specifications
For NTSC model
Adjust 1RV9/VF-60 so that portions A and
Spec.:
B on the viewfinder screen can be barely
discriminated.
For PAL model
Adjust 1RV9/VF-60 so that portions A and
Spec.:
B on the viewfinder screen can be barely
discriminated, and portions B and C cannot
be discriminated.
BVP-550
BVP-550P