JVC AV-20420/SA Service Manual page 14

AV-20420
AV-20421
3.5 BASIC OPERATION OF SERVICE MENU
3.5.1 TOOL OF SERVICE MENU OPERATION
Operate the SERVICE MENU with the REMOTE CONTROL UNIT.
3.5.2 SERVICE MENU ITEMS
With the SERVICE MENU, various adjustments can be made, and they are broadly classified in the following items of settings.
PICTURE
SOUND
GAME
LOW LIGHT
HIGH LIGHT
RF AFC CHECK
VCO(CW)
1-14 (No.52111)
This mode adjusts the VIDEO CHROMA and DEFLECTION control circuit.
This mode adjusts the SOUND control circuit.
This mode adjusts the detailed GAME mode settings.
This mode adjusts the WHITE BALANCE (LOW LIGHT) control circuit.
This mode adjusts the WHITE BALANCE (HIGH LIGHT) control circuit.
This is no requirement for adjustment. Do not adjust this mode.
This mode adjusts the VCO control circuit.