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8-4
TROUBLESHOOTING
Check the connection of
Main PCB.(CN01)
Normal?
Yes
No
Yes
Plug the unit
Power Failed (Dead),
No display?
Check the button beep.
Touch the Clear button,
Can hear the beep
sound?
Replace the
Main PCB
No
Reconnect.
If defective
harness,
replace or fix
1
No
No
Check the connection of
Power Cord. Normal?
Reconnect. If
defective
harness,
replace or fix
2
3
Check the AC input of Main
PCB.
- Main PCB CN01(Pin 1 and 3)
120V AC?
No
Yes Replace the
Main PCB
4
No
Yes
Check the connection of L
and N at Terminal block.
Normal?
Reconnect.
Replace the
Main PCB
5
Содержание LRG4111ST
Страница 41: ...Composition of control 6 1 1 Wiring Diagram ...
Страница 44: ...6 4 Composition of control NFC PCB P N EBR78789101 Buzzer PCB P N EBR76332902 ...
Страница 66: ...8 19 TROUBLE SHOOTING Symptom Check Point 1 Key not working 2 F3 Error 1 Check the Electrical Wiring ...
Страница 70: ...2034 2050 203L 203R 2051 2006 2501 260M 2001 260B 260K 2043 2042 2044 2381 2385 3106 CONTROLLER PARTS EV ...
Страница 74: ......