Sony Trinitron KV-21V4A Service Manual page 47

B MODEL ONLY ADJUSTMENT
2-5. SECAM SYNC GATE ADJUSTMENT
(EE Mode)
1) Input the SECAM COLOUR BAR (2Vp-p).
2) Connect Oscilloscope to JL307 and JL033.
3) Adjust for 1.0 ± 0.2 µsec using VR002.
2-6. REC BELL ADJUSTMENT (1) (EE Mode)
1) Input the SECAM COLOUR BAR (2Vp-p).
2) Connect Oscilloscope to JL084.
3) Adjust for 200mVp-p using L003.
200mVp-p
2-7. REC BELL ADJUSTMENT (2) (EE Mode)
1) Input the SECAM COLOUR BAR (2Vp-p).
2) Connect Oscilloscope to JL082.
3) Adjust for 70mVp-p using L005.
70mVp-p
JL307
JL033
1.0 ± 0.2µsec
JL084
JL082
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2-8. SECAM REC CHROMA ADJUSTMENT
(EE Mode)
1) Input the SECAM COLOUR BAR (2Vp-p).
2) Connect Oscilloscope to JL303.
3) Adjust for 90mVp-p using VR001.
90mVp-p
2-9. PB BELL ADJUSTMENT (PB Mode)
1) Connect between GND and JL304.
2) Input the SECAM RF signal (400mVp-p).
3) Connect Oscilloscope to JL082
4) Adjust for both top and bottom to be flat using L004.
2-10. SECAM DET ADJUSTMENT
(REC/PB Mode)
1) Input the SECAM COLOR BAR.
2) Connect Oscilloscope to pin! of IC051.
3) Adjust for 4.8 ± 0.1 Vp-p using RV051.
JL303
Both top and bottom
to be flat
JL082
4.8 ± 0.1 Vp-p