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ADJUSTMENT OF NTSC/PAL VIDEO INPUT CARD (BT-YA701P)
BEFORE ADJUSTMENTS
1. Warm run the set and measuring instruments sufficiently (at least 30 minutes).
2. Never touch the parts (such as variable resistors, transformer and capacitors) other than those specified in the adjustment procedures.
3. Set S301 (APC SW) to N (Normal) unless otherwise specified.
MEASURING INSTRUMENTS AND TOOLS
s Signal generator (NTSC/PAL color bar signals)
s Oscilloscope
ADJUSTMENT LOCATIONS
72
VR101
VR302
VR102
TC304
TP-Y
N
IC202
VR305
T301
VR303
VR301
VR304
IC301
TP-RY
TC303
TP-BY
S301
S
VR101
: VBS AMP VR
VR102
: Y AMP VR
VR301
: LIS GAIN VR
VR302
: TINT VR
VR303
: NTSC COLOR VR
VR304
: Pr GAIN VR
VR305
: PAL COLOR VR
T301
: LIS 3 TRANSF
TC303
: PAL PHASE TRIM
TC304
: NTSC PHASE TRIM
S301
: APC SW
TP-Y
: Q208-E
TP-RY
: Q303-E
TP-BY
: Q305-E
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