TOVIS P/N
MTG-1902EX
DATE
2002.03.11
REV.NO
0
TOVIS
Color Monitor Service Manual
PAGE
13/25
7. Adjustment Specification
7-1. Adjustment Sequence
You should allow 15 minutes for the unit to warm up before adjusting.
7-2. Adjustment Sequence
FBT High Voltage
→
G2 Voltage
→
Raster. Center
→
Hor. Size
→
Hor.
Position
→
Ver. Size
→
Ver. position
→
Side-pin
→
Trapezoid
→
Focus
→
White balance
→
Convergence
7-3. Adjustment Procedure
How to enter the Factory Mode: Press SEL and UP key simultaneously.
7-3.1. H/V voltage adjustment
1) Input the cross-hatch pattern with the 31KHz 640*480 mode.
2) After connecting a HIGH voltage meter to the ANODE, adjust VR 501 to
27kv.
7-3.2. G2 Voltage adjustment
1) Input the cross-hatch pattern with 31KHz 640*480 mode
2) After connecting a DC high voltage meter to the G2 of the CRT socket,
adjust G2 voltage to 560V
±
10V by changing SCREEN VR of FBT.
7-3.3 G/D Adjustment
Refer to controls and adjustment. (Article 6)
7-3.4 Focus adjustment
1) Input the "H" character pattern with 31KHz 640*480.
2) Adjust the focus for the best balance at each point of A, B, C, D, E as
shown below by rotating the focus VR of FBT.
3/4
A
B
2/4
E
1/4
D
C
1/4
2/4 3/4
TOVIS CO., LTD.