JVC AV-21PM Service Manual page 11

Jvc av-21pm colour television service manual
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3. BASIC OPERATION IN SERVICE MENU
(1) How to enter SERVICE MENU
Press the DISPLAY key and the PICTURE MODE key on
the remote control unit simultaneously.
The SERVICE MENU screen will be displayed. (See Fig. 1.)
(2) Selection of SUB MENU SCREEN
Press one of the keys 1 ~ 6 on the remote control unit, and select the SUB MENU SCREEN from the SERVICE MENU. (See Fig. 2 on
the next page.)
SERVICE MENU → SUB MENU
(3) Method of Setting
*Once the setting values are set, they are memorized automatically.
*It must not adjust without inputting a signal.
1) 1. IF
[1. VCO]
(a) 1 Key ......................................... Select 1. IF.
(b) 1 Key ......................................... Select 1. VCO. (CW)
(c) VCO(CW) . ................................ Adjust VCO(CW) while watching the colour (yellow/blue) of the characters on the screen.
(d) DISPLAY Key ............................ When this is pressed twice, you will return to the SERVICE MENU.
[2. DELAY POINT]
(a) 1 Key ......................................... Select 1. IF.
(b) 2 Key ......................................... Select 2. DELAY POINT.
(c) MENU − / + Key ......................... Adjust the setting value.
(d) DISPLAY Key ............................ When this is pressed twice, you will return to the SERVICE MENU.
2) 2. V/C, 3. DEF, 4. VSM PRESET and 5. PRESET
Note: Do not adjust "4. VSM PRESET" and "5. PRESET" unless you had changed its value by mistake.
(a) 2 ~ 5 Keys ................................. Select one from 2. V/C, 3. DEF, 4. VSM PRESET and 5. PRESET.
(b) MENU a key ........................ Select setting items.
(c) MENU − / + Key ......................... Adjust the setting values of the setting items.
(d) DISPLAY Key ............................ When this is pressed, you will return to the SERVICE MENU.
3) 6. TURBO TIMER
(a) 6 Key ......................................... Each time you press the key, ON/OFF state of TURBO TIMER changes.
(4) Release of SERVICE MENU
After completing the setting, return to the SERVICE MENU by pressing the DISPLAY key, then again press the DISPLAY key to return
to the normal screen.
1. IF
2. V / C
3. DEF
4. VSM PRESET
5. PRESET
6. TURBO TIMER
For details, refer to the adjustment table.
Use the number keys on the remote control unit for setting of WHITE BALANCE and BLACK
OFFSET. For the setting, refer to each item concerned.
(Should be set to OFF.)
No. 56055
SERVICE MENU
SERVICE MENU
1. IF
2. V/C
3. DEF
4. VSM PRESET
5. PRESET
6. TURBO TIMER OFF
1-6 : SELECT
DISP : EXIT
.
.
Fig. 1
AV-21PM
11

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