OPTION MENU SETUP
FUSES
- Disconnect the HD-4001.
- Place the remote control on the 'TV' layer.
- Select 'Menu" display by pressing "TV-Menu" button Once.
- Press the number buttons [2,0,7,0] in sequence to select the "Option Menu".
- Press "Adjust Up | Dn" buttons to select "Initialize"
- Press "Enter".
==============================
Initialize
Power Restore: Off
Component Port:
Direct Key Mode:
Version - GM32: xxxx/xx/x-xx
Version H8S:xxxx/xx/x-xx
==============================
Protection circuit
- LT-3280D & LT-3780D has two protection circuits and some fuses. If the protection circuit work, the LED turns to Standby mode. The protection operation can be confirmed by the blinking of Blue Power LED. The content can be confirmed by the number of blinking within one cycle.
Name
|
Number of blinks
|
Fault location
|
cause
|
Remark
|
Short 1
|
1
|
Power-sub 1 or panel
|
Excessive current on the 120V line.
|
Only LT-3780D
|
Power-sub 2 or panel
|
The 24V line on the Power-Sub2 is low.
|
Only LT-3280D
|
||
Short 2
|
2
|
Power or Main or Panel [Only 18V or P5V]
|
The voltage of any of the following output lines is low.
18v
P5V
AMPVCC ‘17V’
4.5V
A3.3V
D3.3V
AD3.3V
D2.5V
A1.8V
|
Check the fuses on Power Board {F9G2, F9G3, F9G5, F9G8}
|
Part No
|
Rated value
|
PCB
|
Remark
|
F9A1
|
6.3A
|
POWER
|
AC LINE
|
F9G2
|
500mA
|
S8V line, S8V line for S5V
|
|
F9G3
|
1A
|
24V line for S8V and S5V
|
|
F9G4
|
500mA
|
24V line for S8V & S5V
|
|
F9G5
|
1.6A
|
24V line for AMP VCC.
|
|
F9G6
|
4A
|
24V line for 18V
|
|
F9G7
|
1A
|
24V line for P5V
|
|
F9G8
|
500mA
|
24V line for 4.5V
|
|
F910
|
1A
|
IC 920 is broken
|
