JVC AV-20F475 Service Manual page 14

4.6.1 TOOL OF SERVICE MODE OPERATION
Operate the SERVICE MODE with the REMOTE CONTROL UNIT.
4.6.2 SERVICE MODE ITEMS
In general, basic setting (adjustments) items or verifications are performed in the SERVICE MODE.
1. V/C (S)
2. DEF (D)
3. SOUND (A)
4. OTHERS (F)
5. 3L Y/C(LYC)
7. LOW LIGHT
8. HIGH LIGHT
9. VCO
11. I2C BUS
12. SYSTEM(SYS)
4.6.3 HOW TO ENTER THE SERVICE MODE
(1) Set to 0 minutes using the [SLEEP TIMER] key.
(2) Press the [VIDEO STATUS] key and [DISPLAY] key
simultaneously, then enter the SERVICE MODE.
NOTE:
Before entering the SERVICE MODE, confirm that the setting
of TV / CATV switch of the REMOTE CONTROL UNIT is at the
"TV" side and the setting of VCR / DVD switch is at the "VCR"
side. If the switches have not been properly set, you cannot
enter the SERVICE MODE.
4.6.4 HOW TO STORE OF SETTING VALUE
The setting value will be stored automatically when release the
REMOTE CONTROL UNIT keys
4.6.5 HOW TO EXIT THE SERVICE MODE
Press the [EXIT] key to exit the SERVICE MODE.
1-14 (No.YA052)
This sets the setting values of the VIDEO circuit.
This sets the setting values of the DEFLECTION circuit.
This sets the setting values of the AUDIO circuit.
This sets the setting values of the factory settings. [Do not adjust]
This sets the setting values of the 3 line YC separation control circuit. [Do not adjust]
This sets the setting values of the WHITE BALANCE (LOW LIGHT) control circuit.
This sets the setting values of the WHITE BALANCE (HIGH LIGHT) control circuit.
This sets the setting values of the VCO control circuit.
This sets the setting values of the I
This sets the setting values of the system control circuit. [Do not adjust]
2
C BUS control circuit. [Do not adjust]
SERVICE MODE SELECT KEY
TV/CATV
switch
DISPLAY
SLEEP
TIMER
VIDEO
STATUS
VOL-
MENU
VCR/DVD
switch
POWER
NUMBER
CH+
ASPECT
VOL+
EXIT
CH-
RM-C1258G