JVC AV-21D116, Service Manual

Page: 9 / 63

(No.YA396)1-9
3.2.4 SERVICE MENU SETTING ITEMS
3.2.5 REPLACEMENT OF IC301 (IF V/C DECODER)
• For the IC301(IF V/C DECODER) of this model, all data are written in the micro-computer. So, write the data in the micro-
computer in accordance with the following procedures before starting adjustment.
„ PROCEDURES
(1) Turn the POWER OFF.
(2) Replace the IC301 with a new one.
(3) While pressing
[MENU] button and [VOL+] button ON the FRONT CABINET simultaneously, turn the POWER ON. When the
POWER is turned ON, the data is written in the micro-computer immediately.
„ LOCATIONS OF FRONT PANEL BUTTONS
Setting item Setting value Setting item Setting value
2. V/C 1.CUT OFF
2.DRIVE
3.BRIGHT
4.CONT.
5.COLOUR
6.TINT
7.SECAM BL ADJUST
8.SHARP
[Do not adjust]
9.AMP T. SHARP [Do not adjust]
5. PRESET
[Do not adjust]
Colour System 1. C-TRAP FIX
2. SHARP PEAK
3. ABL
4. GAMMA
5. Y. DELAY TIME
6. BLACK EXP START
7. C-BPF
8. CW / SCP
9. VIF DET LEVEL
11. IF AGC MIN
12. VIF AGC
13. VIF PMOD
19. VNR
20. RGB LIM
21. RGB LIMIT LEVEL
23. TEXT H. POSITION
24. READ DATA
3. DEFLECTION 1. VER. POSITION
2. HOR. POSITION
3. VER. HEIGHT
4. VER. LINEARITY
5. VER. SCURVE
6. HOR. VCO ADJUST
[Do not adjust]
4.VSM PRESET TINT
COLOUR
BRIGHT
CONT.
SHARP
Sound System 10. SIF DET LEVEL
14. SIF BPF BW ADJUST
15. SIF TRAP F0 ADJUST
16. SIF TRAP F0 ADJUST 2
17. SIF -TRAP
18. SIF -BPF
22. SIF SW
CHANNEL VOLUME POWER MENU
OK
TIMER
MENU POWER