Qy287 Card - Mitsubishi Electric MELDAS 60 Series Maintenance Manual

1.18 QY287 Card

[Block diagram]
[Explanation of functions]
The QY287 card is used for the 10.4-type color LCD display. The card converts the video signals
output from the RX212 card into color LCD signals. The QY287 has no sections to be set.
[Connector layout diagram]
[Explanation of LEDs]
Name
12V
LCD
5V
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1. EXPLANATION OF MODULE FUNCTIONS
Function
Inverter output voltage check
LCD power voltage check
Internal output voltage check
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1.18 QY287 Card
VIDEO →
RGB signal
conversion
TEFG
CBP18
LED1
CF02
LED2
LED3
LCD
F1
CBC14
Status
Color
When During
normal error
Green Lit Not lit
Green Lit Not lit
Green Lit Not lit
II-32
LCD signal output
Backlight power
Backlight ON/OFF
(12V)
(LCD)
(5V)
Fuse 3.2A
Fuse 3.2A
Daito Communication HM32
Daito Tsushin HM32
Soldered type
Soldered type
(cannot be replaced)
(cannot be replaced)
Correspondence for error
Contact the Mitsubishi Service Center
Check 24VDC voltage
Contact the Mitsubishi Service Center