SC/SS
(“42: SN)
“42/50: PSS
“55/60/65: P
A
Missing F15V (As a result of Shorted Vsus/Vda)
Incomplete or interrupted
Boot Program execution
of PEAKS IC (IC8000).
Fast
3 BLINKS
#4 Not
Often
#3 Occasionally
#2
#1 Suspect
A
SC
(“42: SN)
An increase or reduction of the Energy Recovery
Circuit output (MID).
Shorted SUB5V.
Open or loose connection between SC and A boards
(SC20(SN20)/A20).
Open or loose connection between connectors of A and C
boards.
SC Energy Recovery
Circuit
6 BLINKS
A
Failure of IC9300.
Discharge Control Circuit
DDC (IC9300)
9 BLINKS
A
“42/50: PSS
“55/60/65: SS
Abnormality of the sustain drive circuit.
Open or loose connection between the SS/SS2 Boards
and FPCs from the panel (SS5# – SS5# – SS5#).
Sustain Drive Circuit and
Connection between the
SS(PSS) board and the
Panel.
8 BLINKS
A/Panel
“42/50: PSS
“55/60/65: SS
SC
(“42: SN)
SU/SD
(“42: SN)
Missing Vsus. ( Open or loose connection between
connectors SC2(SN2)-P2. )
Abnormality of the scan circuit output, the 15V_F, Vad, and
Vscn circuit.
Open or loose Connection between the SC board and
the SU/SD board (SC41, SC42, SC46).
Defective panel.
Scan Drive Circuit and
Connection between the
SC board and the SU/SD
board.
7 BLINKS
A
Defective A board.
IC8000 Internal problem
13 BLINKS
Speakers/
Subwoofer
A
Defective Speaker/Subwoofer.
Pinched Speaker Wire.
Audio Amp. Circuit
12 BLINKS
A
Over Voltage Condition of SUB5V or SUB3.3V.
Low voltage or SUB3.3V
SUB3.3V_Sense (OVP)
10 BLINKS
“42: SN
50/55/60/65: A
“42/50: PSS
“55/60/65: P
Missing P15V.
P15V from the P board
2 BLINKS
A
Read error.
Wake up error of IC9300.
Panel Information SOS
Communication problem.
1 BLINK
LIST OF BOARDS POSSIBLY CASUSING THE FAILURE
CONDITIONS TRIGGERING
THE SHUTDOWN
CIRCUIT
MONITORED
POWER LED
ERROR
CODE
Power LED Error Code Definition (TC-P**S60)
Slide 7
