Color Vector Adjustment .0; R-Y/B-Y Out Level Adjustment 0.0 - Sony CCU-TX7 Service Manual

4-2-15. Color Vector Adjustment
Equipment : Vectorscope, Waveform monitor
To be extended : ES-20 board
Preparation :
¢ GAIN Switch/vectorscope — "75% CAL"
* Adjust the PHASE control on the vectorscope so that the
burst spot is aligned to the 75% axis.
¢ Select the BARS mode on the RCP-TX7 or COU-TX7.
Test point : VBS 1 OUT connector/ CCU rear panel
Adjustment Procedure :
1. Adjust @RV806 (BURST LEVEL)/ES-20 board so that
the burst spot is located at 75% scale mark on the
vectorscope screen.
2. Adjust the following adjusting controls so that all
luminance points are inside the respective "EA" mark on
the vectorscope.
@RV807 (BURST PHASE)/ES-20 board
@RV808 ((U) LEVEL)/ES-20 board
@RV810 (CHROMA LEVEL)/ES-20 board
@FL800 (QUAD)/ES-20 board
[For NTSC] [For PAL]
3. Repeat procedure | and 2 several times.
4-10
4-2-16. R-Y/B-Y OUT Level Adjustment
Equipment : Oscilloscope
To be extended : ES-20 board
Preparation :
* Select the BARS mode on the RCP-TX7 or COU-TX7.
* $800 (R/G/B, Y/R-Y/B-Y, Y/C)/ES-20 board
— "Y/R-Y/B-Y" (Center position)
¢ R/R-Y/C1 OUT connector/CCU rear panel
— "75 Q termination"
¢ B/B-Y1 OUT connector/CCU rear panel
— "75 Q termination"
Adjustment Procedure :
ES-20 board [For NTSC (UC)}
Test point Adj. point Specifications
(GND : pin 91)
opvett | A= 70025 mV pp
onvat2 | B=70025mVpp
ES-20 board [For PAL]
Test point Adj. point Specifications
(GND : pin 91)
FRY | ping2 | @Rvatt A = 525 45 mV p-p
By | pingo || @avei2, |B =52545mVp-p
R-Y OUT B-Y OUT
fl |
CCU-TX7 (E)\V1