Saturday, August 04, 2012

SANYO VIZION - DP32746 SERVICE MODE



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.
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                                                              080                                          ATT
                                                               O7                                      00000111
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Here: 080 = Item Number:  ATT = Title:  07 = Hex Data & 000001111 - 8 bit binary data.
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  • 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.
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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)