Select The Signal In Test.s Menu - Akai 21CTF66BC Service Manual

Adjust V.size value to get 90% of vertical picture contents would be displayed on CRT
Adjust VSC value to vertical S-correction is ok
Adjust H.PHASE value to get the picture horizontal center correspond to CRT horizontal center
MENU1
M1 PRESET
TEST.S 0
R．BIA 32
G．BIA 32
B．BIA 32
R．DRV 32
G．DRV 32
B．DRV 32
SUB BRT 32
VSD
CL 12
BLOC 6

SELECT THE SIGNAL IN TEST.S MENU

SELECT VSD AND PRESS V+ KEY .WILL BE ENTER SC LINE MODE
PRESS NO. 2 IS REDUCE R．BIA AND NO. 3 IS INCREASE R．BIA
PRESS NO. 4 IS REDUCE G．BIA AND NO. 5 IS INCREASE G．BIA
PRESS NO. 6 IS REDUCE B．BIA AND NO. 7 IS INCREASE B．BIA
DESCRIPTION
0=external signal,1=black
signal ， 3=red signal ， 4=green signal,5=blue
signal
(VARIABLE 0 63)
R bais adjusted
G (VARIABLE 0 63)
bais adjusted
B (VARIABLE 0 63)
bais adjusted
R (VARIABLE 0 63)
adjusted
drive
G (VARIABLE 0 63)
adjusted
drive
(VARIABLE 0 63)
B adjusted
drive
(VARIABLE 0 63)
Sub Brightness
Vertical scan disable
Cathode drive level(VARIABLE 0 15)
Black level offset course(VARIABLE 0 15)
6
signal ， 2=white