B1 Board Adjustments; Preparation - Sony TRINITRON PVM-14L5 Service Manual

4-3. B1 Board Adjustments

Before starting the B1 board adjustment, be sure that
adjustment of the B board has already been completed
earlier.

4-3-1. Preparation

1. Measurement points
TP2801
TP2802
IC2803
TP2803
TP2804
B1 BOARD (A SIDE)
Fig. 4-25
4-8
2. Preparation of signals
Signal
level
CN801
Composite
TP801
TP3802
3. Connection diagram
TP3801
The B board can process various formats of video
signal. The B board must be adjusted for each type of
video signal format respectively. Input the signals that
meet the following specifications to the connectors on
the rear panel of the unit.
358NTSC/ 100 %
443NTSC white
75 %
white
Burst
PAL/ 100 %
SECAM white
75 %
white
Burst
Table. 4-2
For the connection method of the B1 board, refer to
section 4-2-1. Item 3.
Signal
input
(mV)
_ 714
_
536
_ 286
_
700
_ 525
_ 300
PVM-14L5/20L5/D14L5A/D20L5A