5-55
A
H
A
H
A
H
A
H
(3) REC CB Signal Level Adjustment (NTSC)
Mode
E-E
Signal
Color bar (NTSC) (S VIDEO input)
Measuring Point
Emitter of Q127 (CL114)
Measuring Instrument
Oscilloscope
Adjustment Element
RV105
Specified Value
A = 1.20 ± 0.02 Vp-p
Switch setting:
INPUT SELECT switch....................................S VIDEO
NTSC/PAL switch..............................................NTSC
Adjusting method:
1) Set the CB signal level (A) to the specified value using RV105.
Fig. 5-3-14
(4) REC Y Signal Level Check (PAL)
Mode
E-E
Signal
Color bar (PAL) (S VIDEO input)
Measuring Point
Emitter of Q126 (CL113)
Measuring Instrument
Oscilloscope
Specified Value
A = 1.55 ± 0.05 Vp-p
Switch setting:
INPUT SELECT switch....................................S VIDEO
NTSC/PAL switch................................................PAL
Checking method:
1) Check the Y signal level (A) satisfies the specified value.
Fig. 5-3-15
(5) REC CR Signal Level Check (PAL)
Mode
E-E
Signal
Color bar (PAL) (S VIDEO input)
Measuring Point
Emitter of Q118 (CL108)
Measuring Instrument
Oscilloscope
Specified Value
A = 1.25 ± 0.02 Vp-p
Switch setting:
INPUT SELECT switch....................................S VIDEO
NTSC/PAL switch................................................PAL
Checking method:
1) Check the CR signal level (A) satisfies the specified value.
Fig. 5-3-16
(6) REC CB Signal Level Check (PAL)
Mode
E-E
Signal
Color bar (PAL) (S VIDEO input)
Measuring Point
Emitter of Q127 (CL114)
Measuring Instrument
Oscilloscope
Specified Value
A = 1.20 ± 0.02 Vp-p
Switch setting:
INPUT SELECT switch....................................S VIDEO
NTSC/PAL switch................................................PAL
Checking method:
1) Check the CB signal level (A) satisfies the specified value.
Fig. 5-3-17