Blue Offset Adjustment(Hw572K90) - Sony KP-HR432K90 Service Manual

4-5. BLUE OFFSET ADJUSTMENT (HW572K90)
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
KP-HR432K90/HR532K90/HR532N90/HW572K90
2.20±0.05 Vp-p
– 34 –
RM-Y909K RM-Y909K RM-Y908 RM-Y909K