JVC AV28R100EKS Service Manual page 46

AV-29RF6
BASIC OPERATION OF SERVICE MENU
1. The adjustment using SERVICE MENU
The following adjustment items use the SERVICE MENU in the series of the adjustment. The adjustments are made on the basis of the
initial setting values. The adjustment values which adjust the screen to the optimum condition can be different from the initial setting values.
With the SERVICE NEMU, various settings can be made, and they are broadly classified in the following items of settings.
IF ･････････････････････････ Adjustment of the IF circuits.
V/C ･･･････････････････････ Adjustment of the VIDEO/CHROMA circuit.
AUDIO ････････････････････ Adjustment of the sound circuit [Do not adjust].
DEF ･･･････････････････････ Adjustment of the DEFLECTION circuit for each aspect mode given below
VSM PRESET ･･････････････ Adjustment of the initial setting values of VSM condition as BRIGHT, STANDARD and SOFT.
WB PRESET ･･･････････････ Adjustment of the initial setting value of WHITE BALANCE PRESET values as COOL, MID and WARM.
AUTO PROGRAM･･･････････ By turning the power switch on, you can get the state of AUTO PROGRAM [Do not adjust].
2. Key operation of the SERVICE MENU
[Enter to SERVICE MENU]
Press the DISPLAY key and the PICTURE MODE key of the REMOTE CONTROL
UNIT simultaneously. Then enter the SERVICE MENU mode as shown in Fig.1.
[Exit from SERVICE MENU]
When complete the adjustment work, press the DISPLAY key to return to the main
SERVICE MENU. And then press the DISPLAY key again, return to the normal
screen.
[Select the SUB MENU from MAIN MENU]
In main SERVICE MENU, press the 1～7 key of the remote control unit, to select any
of the adjustment items.
The colours which selected item characters are changed.
[Method of setting]
1. IF
[VCO]
①1 Key ･･････････ Select 1.IF.
②The VCO (CW) screen will be displayed.
③DISPLAY Key ･･･ As you press this key, you will return to the SERVICE MENU.
KEY ASSIGNMENT OF REMOTE CONTROL UNIT
PICTURE
MODE
MENU
UP/DOWN
14
REGULAR (50/60Hz)
ZOOM (50/60Hz)
16:9 (50/60Hz)
(VSM : Video Status Memory)
DISPLAY
OK
MENU
LEFT/RIGHT
Ten key
No. 51754
SERVICE MENU
SERVICE MENU
1. IF 2. V/C
3. AUDIO 4. DEF
5. VSM PRESET 6. WB PRESET
7. AUTO PROGRAM (OFF)
1-7 : SELECT DISP : EXIT
** ** **
JVC JK ASIA V**
*******-***** *****
******* ******* ***** *****
M*******
Fig.1
SUB MENU 1.IF(VCO)
** ** ** **.** ** ** ** MHz : CH** ** ** **
VCO (CW)
TOO HIGH
ABOVE REFERENCE
JUST REFERENCE
BELOW REFERENCE
TOO LOW
DISP : EXIT