TO ENTER SERVICE MODE
- Turn 'ON' the receiver, and Disconnect 'AC' power supply. {Unplug the power cord from AC wall socket}
- Press and Hold 'Volume (-) button on the TV control panel, and re-plug it to AC power.
- Service Mode Menu will appear on the screen like this.
_________________________________________________________________________________
080 ATT
O7 00000111
_________________________________________________________________________________
Here: 080 = Item Number: ATT = Title: 07 = Hex Data & 000001111 - 8 bit binary data.
_________________________________________________________________________________
- Press {Ch Up or Ch Dn} key to select the desired service menu item.
- Press {Volume (+/-) to increase or decrease the data sequentiality. The number keys (0 to 7) toggle only their respective bits, between (1) and (0), and are used to change the sub-address. For example: to change bit [5]:
----------------------------------------------------------------------------------------------------------------------------------
(b7) (b6) (b5) (b4) (b3) (b2) (b1) (b0)
0 1 0 1 0 1 1 0 <---------------8 bit binary data.
To select, use {Channel Up | Channel Dn}.
NB: Using (+) or ( - ) is not recommended due to possible rapid changes.
_________________________________________________________________________________
To "EXIT" form service mode, press "Menu" button.
When EEPROM IC is replaced, check the bus data to confirm they are same as below. The standard Menu should be checked and be set up or re adjusted according to the procedures described. Initial set up data {080;081;082;087 & 088} are fixed.
No
|
TITLE
|
INITIAL REFERENCE DATA HEX
|
INITIAL SET UP DATA HEX
|
INITIAL SETUP DATA BINARY
|
FUNCTION
|
080
|
ATT
|
07
|
07
|
00000111
|
Attenuation – MTS input level (3-0)
|
081
|
SPC
|
20
|
20
|
00100000
|
Spectral-High seperation
(5-3)
|
082
|
WDB
|
20
|
20
|
00100000
|
Wide band low seperation (5-0)
|
083
|
SCO
|
00
|
00
|
00000000
|
Sub Colour (Not available)
|
084
|
STI
|
00
|
00
|
00000000
|
Sub-Tint (Not available)
|
085
|
SB
|
00
|
00
|
00000000
|
Sub-Bright (not available)
|
086
|
SSH
|
00
|
00
|
00000000
|
Sub-Sharpness (not available)
|
087
|
OP1
|
09
|
09
|
00001001
|
B4:26-1,b3W/HDMI-1, LCDb1, b1-0
|
088
|
OP2
|
00
|
00
|
00000000
|
B1:Aspect 16:9-1, 4:3-0
|
1Co
|
00000000
|
Not used
|
|||
1FF
|
Not used
|
||||
200
|
1R01
|
00
|
00
|
00000000
|
ROM connection data.
|
298
|
2R48
|
00
|
00
|
00000000
|
ROM connection data.
|
PROGRAM CODES
The microprocessor use in this model is a multi-purpose type, and used in several other models. To ensure proper operation and the correct features for a particular model, the program codes must be correct.
The Option data 1 (No.087 OP1) should be hexadecimal 09 (00001001 binary)
Option Data 2 (No.088 OP2) should be hexadecimal 00 (00000000 binary)
