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ADJUSTMENTS
PANEL voltage adjustment
Power voltage adjust for TTL panel
The power voltage should be adjusted and checked when changing the panel or power board
*NOTE:
ADJUSTMENT KNOB
1. Setting input source to RGB mode.
2. RGB mode pattern is all white pattern.
3. Follow the panel label voltage to adjust VR (Va=75V, Vs=175V, -Vy=-80, Vset_up=220V)
4. Check voltage between "check point" and ground.
5. Adjust sequence VA, VS, -Vy and Vset_up
Panel exchange the main power board adjust voltage for each Mode:
Digital Voltage meter the negative(-) to get main power board:(GND) PCB pin.
1. Digital Voltage meter the anode(+) to get main power board: (Va) CN805 or CN806 Va Connect pin.
Adjust VR (Va) = 75 ±0.3Vdc
2. Digital Voltage meter the anode(+) to get main power board: (Vs) CN803 or CN804 Vs Connect pin.
Adjust VR (Vs) = 175 ±0.3Vdc
First issue 06 / 03
MAIN POWER BOARD
15
Vs ADJ
V
-Vy ADJ
Vset ADJ
Va ADJ
GND PO INT
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