Sharp LC-121M2E Service Manual page 13

LC-121M2E
LC-150M2E
Brightness adjustment 1. Input the standard colour bar signal | 1. Adjust PAL BRIGHTNESS, and
(PAL) of PAL into AV1. adjust the black level of G output
2. Connect oscilloscope to TP821 so as to get DC 1.5+0.05V.
(IC803, pin7, G output).
Unicolor adjustment 1. Input the standard colour bar signal | 1. Adjust PAL UNICOLOR, and adjust
(PAL) of PAL into AV1. so as to get 100% white-black level
2. Connect oscilloscope to TP821 video component equal to 2.3+0.05
(C803, pin7 , G output ). Vp-p.
14 | Colour level adjustment | 1. Input the standard colour bar signal | Adjust PAL SCOLOR so as to get the
(the same pattern as that of E-12CH) | colour bar signal blue amplitude
of PAL into AV1. (black level - peak level) equal to 2.0V
2. Connect the oscilloscope to TP820 | +0.05Vp-p.
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15 | Tint adjustment 1. Input the standard colour bar signal | 1. Adjust PAL TINT so as to get the
(the same pattern as that of E-12CH) colour bar signal magenta amplitude
of PAL into AV1. (black level-peak level) equal to 1.7V
2. Connect the oscilloscope to TP820 +0.05Vp-p.
(B output).
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