Blue Offset Adjustment - Sony KP-HW51K90J Service Manual

4-5. BLUE OFFSET ADJUSTMENT

1. Receive the all black (1080i, component) signal with VIDEO 5
input, and set VIDEO MODE to pro and PICTURE to maximum.
2. Connect an oscilloscope between CN5 pin 7 (B) on the A board
and ground.
3. Set in the service mode and select the category " 2150D-2 ".
4. Adjust " 3 SLIN " so that the waveform level is 2.20 ± 0.05Vp-p.
5. After adjustment finished, press " MUTING " +" ENTER "
buttons on the commander to write the data to the NVM.
6. Receive the RF signal and change the wide to mode to " Wide
Zoom " copy the same data to " 3 SLIN ".
Reference Pulse
16.7ms
GND
Fig. 4-5
2.20±0.05 Vp-p
– 32 –
KP-HW51K90J/HW57K90J
RM-Y909K
RM-Y909K