Toshiba 20N7XE, Service Manual

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GENERAL ADJUSTMENTS
SPECIFIC INFORMATIONS
SPEC B-Y/R-Y mV p-p
NO ADJUSTMENT
9. SECAM OFFSET ADJUSTMENT
(Measuring point) Q501#35 R-Y OUT
#36 B-Y OUT
(Adjusting signal) Color bar (SECAM) signal
(Adjusting method)
1. Change SRY data (Q501 SUB ADDR:11/D7~D4) to coincide level of black and white part in color
differential signal (R-Y) to the level of H. BLK part.
2. Change SBY data (Q501 SUB ADDR:11/D3~D0) to coincide level of black and white part in color
differential signal (B-Y) to the level of H. BLK part.
10. CHROMA TRAP ADJUSTMENT
→
NO ADJUSTMENT
11. H. CENT ADJUSTMENT
(Point) Receiving adjustment
(Adjusting signal) WG PHILIPS pattern
Do not use France SECAM pattern.
(Adjusting method) CONT=Maximum BRIGHT=Center COLOR=Center
Vary SUB Address [HPOS] to adjust picture center to screen center. (Set D-C to
minimum by CRT adjusting magnetic field.)
12. V. HEIGHT ADJUSTMENT
(Point) Receiving adjustment
(Adjusting signal) WG PHILIPS pattern
Do not use France SECAM pattern.
(Adjusting method) CONT=Maximum BRIGHT=Center COLOR=Center
Vary SUB Address [VPOS] to adjust center of Philips pattern to screen center.
Adjust SUB Address [HIT] so that top and bottom flags of Philips pattern can just be
hidden.
SPEC B-Y/R-Y mV p-p