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37

FL Display 1.6: 

FL Display (Main Unit) will 
display "GOOD" as 
"FL Display 1.6" shown.

To initialize, press and hold 
main unit [OPEN/CLOSE]
then press remote control 
key [   10].

If firmware software update 
completes successfully:

"Firmware update is completed,
please open the tray and
remove the disc."

GUI Display 1.3:

Step 5 
Eject the disc and power off main 
unit.

Step 6
Power on the unit and do system 
initialize.

Update process finish.

38

This section illustrates the checking procedures when upon detecting the error of “F61” and/or “F76” after power up of the unit. It is
for purpose of troubleshooting and checking in SMPS P.C.B.. 

Set cannot Power ON:

Condition 1: With 
Standby LED on

1

2

1

Solder crack,dry joint ,short 
circuit,open circuit,etc

AC cord

AC Inlet P5701

1 Faulty AC cord, loose 

connection

2

2

Solder crack,dry joint ,short 
circuit,open circuit,etc

2

P5701 solder crack, dry joint 
etc

Faulty IC2900 (No +12V 
output)

Set can Power ON 
then F61

Set can Power ON 
then F76

Set can Power ON 
working normally for 
sometime then F61

Condition 2: With 
Standby LED Off or 
flickering

3

1

3 F1 Fuse open

Fuse F1

DC-DC circuit

1 Thermal Diode D5706

2 Photocoupler PC701

1 Transformer T5701

2 Photocoupler PC701

1a Pin 14/15 shorted to pin 12/13

1b Fan unit defective

1a Loose connection at CN100 

(No +23V), check cable 
connection between CN100 & 
H2016.

1b No +6V voltage output at pin3, 

IC106.

1d Q100 faulty (No +5V voltage

output at pin1,2,5 & 6).

1e Q107 & D114 faulty (No +9V 

voltage).

1c L125 open circuit.

1a

1b

Improper contact between 
D5706 to heatsink
OTP (thermal) protection 
trigger prematurely

1f IC107 faulty (No +3.3V voltage

output at pin1).

1g K102, K105, K304 open circuit 

(+3.3V line going to Panel 
P.C.B. at CN203).

1) Refer to Fig. 1. SMPS P.C.B.

Refer to Fig. 1. SMPS P.C.B.

Refer to Fig. 1. SMPS P.C.B.

Refer to Fig. 1. SMPS P.C.B.

Refer to Schematic Diagram of
SMPS Circuit (Item 17.5) for 
terminal pin count on primary and 
secondary terminals

SMPS Circuit (Item 17.5)

2) Refer to Schematic Diagram of

1) Refer to Fig. 2. Main P.C.B.

Main Circuit (Item 17.3)

2) Refer to Schematic diagram of

1 Regulator IC IC2900

39

Fig. 1. SMPS P.C.B.

40

Fig. 2. Main P.C.B.