Pb Chroma Level Check - Sony CCD-TRV32 Service Manual

3-9.

PB CHROMA LEVEL CHECK

Purpose : The playback chroma level is kept to constant
level.
Adjustment error : Color of playback picture can be thinner or
thicker than normal picture.
Mode Playback
Signal Alignment tape : color bar segment of
operation check tape
• Normal mode
WR5-5CSP (PAL)
WR5-5NSP (NTSC)
CN102 pin 6
Measurement Point
Measuring Instrument Oscilloscope
Adjustment Page —
Adjustment Address —
A=150 ± 15mVp-p
Specification Value
(BURST LEVEL)
Adjustment procedure:
Order Page Address
1
— —
2
— —
PAL MODEL
A
Before
adjusting
Data
Playback the color bar segment of the normal mode
—
alignment tape.
Check that the burst signal level satisfies the
—
specification.
H H
Procedure
NTSC MODEL
A
H
6-67
White (100%)