Power Led Error Code Definition - Panasonic G20 Series Troubleshooting Handbook

POWER LED
ERROR CIRCUIT MONITORED
CODE
Scan Drive Circuit and
Connection between the SC
7 BLINKS
board and the SM(SU/SD)
board.
Sustain Drive Circuit and
8 BLINKS Connection between the SS
board and the Panel.
Discharge Control Circuit
9 BLINKS
(IC9300)
10 BLINKS
12 BLINKS AUDIO AMP

Power LED Error Code Definition

CONDITIONS TRIGGERING
THE SHUTDOWN
Missing Vsus.
Abnormality of the scan circuit output, the 15V_F, the
scn_pro, and Vscn circuit.
Loose or open Connection between the SC board and the
SM(SU/SD) board (SC41, SC42, SC46).
Open or loose connection between connectors SC2/P2
Wrong diagnostic by the A board
Abnormality of the Sustain drive circuit.
Open or loose connection between the SS board and FPCs
from the panel (SS61, SS64, SS21, SS24 and SS58).
Open or loose connection between connectors C10/C20
Wrong diagnostic by the A board
Failure of IC9300
Abnormalities of the F+15V.
Reasons:
•
The P board is not generating the F+15V
• SUB Voltages are affected by the K board or by
metal object present in the SD card slot..
Shorted Vsus (By the SS board or SC board).
Shorted Vda (By the panel, C1, or C2 board)
Wrong diagnostic by the A board.
Abnormalities of the Audio AMP
LIST OF BOARDS POSSIBLY CASUSING THE FAILURE
MOST
2 OCCASIONALLY
ND
COMMON
SC SM Panel+SC+SM
SS Panel A
¤ ¤
A
SS SC A - P
¤ ¤
A
RARELY
A
C2
¤
K
¤
Slide 5