Service manual

17
LC-20VM2
LC-121M2E
LC-150M2E
6-6-6. N443, PAL-M signal adjustment (Actual adjustment manipulation is unnecessary because PAL
data is copied by the data copy manipulation of the former term.
Adjustment Adjusting conditions Adjusting method
1 Brightness adjustment 1. Input the NTSC standard color bar 1. Adjust N443 BRIGHTNESS, and
(N443, PAL-M to AV1. adjust the black level of G output so
BRIGHTNESS Item) 2. Connect oscilloscope to TP821 as to get DC 0.35±0.05V.
(IC316, pin7, G output).
2 Unicolor adjustment 1. Input the NTSC standard color bar 1. Adjust TV UNICOLOR so as to
(N443, PAL-M to AV1. get 2.3±0.1Vp-p between the 100%
UNICOLOR Item) 2. Connect oscilloscope to TP821 white and GND.
(IC316, pin7, G output).
3 Color level adjustment 1. Input the NTSC standard color bar 1. Adjust N443 SCOLOR so as to get
(N443, PAL-M to AV1. the color bar signal blue amplitude
SCOLOR Item) 2. Connect oscilloscope to TP820 (GND level - peak level) equal to
(IC316, pin1, B output). 1.8V ± 0.1Vp-p.
4 Tint adjustment 1. DAC value is set in "62".
(N443, PAL-M TINT Item)