Sanyo C28ER57 Service Manual page 9

INITIALISATION (Important Notice)
When you replace a memory IC (IC802), it is
necessary to initialise the IC as following step.
A. Initialisation
Press and hold the normalisation button
remote control handset and press the programme +
button on the TV set.
P
The IC will be initialised automatically to set the following
data.
User control data
Colour : Centre
Brightness : Centre
Contrast : Maximum
Sharpness : Centre
Text. Bright : Centre
Bass : Centre
Treble : Centre
Balance : Centre
Volume : Step 12
Service data
K1 : +000
K2 : +000
ST ID : +000
ATT : +004
MAX : -096
MIN : +010
The initialised service data of items K1, K2, MAX and
MIN should be modified to the manual set data
shown above.
For how to modify, refer to next step.
B. Service Mode
1. To entre the service mode, press and hold the
Function button
F
and press the programme + button
set.
The following OSD appears on the screen.
ADJUST DATA
K1 +000
K2 -006
ST ID +000
ATT +004
MAX -050
MIN -075
SCREEN VOL
CPU Ver 1.0
F3SEV
Manual set data
-> +001
-> -001
-> -050
-> -075
on the remote control handset
on the TV
P
2. Select the desired service item by using the Function
button
3. Change the data by using the Level + or - button
on the 4. To return to TV mode press the Recall button
on the remote control handset.
Service mode description
K1, K2 : For adjustment of stereo separation
ST ID : Mode setting for A2 stereo judgement
ATT : Attenuation of FM sound
To equalise sound levels between FM and
Nicam.
MAX : Setting of sensitivity for switching Nicam to FM
mode
MIN : Setting of sensitivity for switching FM to Nicam
mode.
SCREEN: For screen adjustment
NOTE:
The items K1, K2, ST ID and ATT are invalid
adjustments for a model which does not have an A2
stereo decoder.
The items MAX and MIN are invalid adjustmens for a
model which does not have a Nicam decoder.
These items allow modifications to the set data, but
there is no effect in performance.
-9-
on the remote control handset.
F
.
+000 : Fast mode
+001: Normal mode
+002: Fast -> normal mode
To make one horizontal scanning line.