JVC KD-AV7100A, Service Manual

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1-12 (No.MA425<Rev.001>)
4.1.6 Service mode
• When adjusting, switch on the main unit and insert a test disc (VT-501). And play the test disc and pause it.
(1) Power ON
(2) Use the remote controller (RM-RK253).
(3) Push the button of remote controller with the following order.
[SRC] button → [ 1 ] button → [ 2 ] button
(4) Exchanging it operate a menu of a service mode with the [ ] button and [ ] button.
(5) Change data with the [ ]/[ ] buttons.
(6) Write data with a [INFO ] button of the main body.
Indication Minimum value Maximum
value
Reference
register value
Detail
1 Data - - - - Only factory use
2 Version - - - - Only factory use
3 Sch - - - - Only factory use
4 Pcb - - - - Only factory use
5 KeyCode - - - - Only factory use
6 Counter - - - - Only factory use
7 Count MSB - - - - Only factory use
8 Count LSB - - - - Only factory use
9 FM LOC *1 00 FF 40 Adjust STOP sensitivity adjustment of FM LOC mode
10 AM LOC 00 FF A0 Adjust STOP sensitivity adjustment of AM LOC mode No use
11 FM DX *1 00 FF 40 Adjust STOP sensitivity adjustment of FM DX mode
12 AM DX *1 00 FF 50 Adjust STOP sensitivity adjustment of AM DX mode
17 CTRST 00 7F 60 Adjust Contrast control
Power save
18 CLOR 80 FF A0 Adjust Color control
Chroma trap filter for Y input
19 TINT 00 FF A0 Adjust Tint control (Base Band TINT)
RGB input coupling mode
20 SHAP 00 FF 30 Adjust Comb filter for base-band color signal of NTSC
CW out mode
Sharpness control
21 BRT 00 FF 98 Adjust Brightness control
22 SUBC 00 FF 60 Adjust Auto Brightness Limiter start point
Auto Brightness Limiter off
Auto Brightness Limiter Gain
Controls the Y amplitude
23 W/BLIM 00 FF FA Adjust White clipping voltage for RGB signal exceeding over white
Limit voltage for RGB signal exceeding below black
24 GM1 10 FF A8 Adjust Correction peak point
25 GM2 10 FF 50 Adjust Boost gain correction peak point
26 SUBT-RB 00 FF A8 Adjust Sub brightness control for R output singal
Sub brightness control for B output signal
27 DRVR 00 FF 1A Adjust Mute switch for RGB output signal
Insert fixed level blue signal for RGB output
Gain control for R video signal
28 DRVG 00 FF 18 Adjust Relative amplitude of R-Y color difference signal
Relative phase of R-Y color difference signal
Gain control for G video signal
29 DRVB 00 FF 18 Adjust Relative amplitude of G-Y color difference signal
Relative phase of G-Y color difference signal
Gain control for B video signal