Service Adjustments With Replacing Memory Ic(Ic802) - Sanyo CP25AF3T Service Manual

Service Adjustments with Replacing Memory IC(IC802)

Note: The CPU (IC801) and memory IC (IC802) store the service adjustments data and controls data for each circuit.
When the Memory IC(IC802) is replaced, some of the service adjustments should be readjusted to obtain the
best performance. The necessary service adjustments are carried out by using the RC handset. Please set
up the TV set with following steps [1] to [2].
[1] Initializing Procedure
1.
Put a new memory IC.
2.
Turn on the TV set.
3.
Press and hold the TV/AV Selector button on the TV set for more than 2 seconds. The following picture appears on
the screen.
MEMORY CLEAR
4.
Press the MENU button on the TV set while the above On-Screen Display is still on the screen. The following
picture appears on the screen.
This completes the initialization of memory IC.
Following shows the initialized contents of memory data by this procedure.
- Plug & play
- Inhibit data
- Ch skip data
- Sound volume data
- Volume Lock
- Tuning Lock
- Music Mode
- AV Start
- Language
- Colour system
- AV status
Video Status
ITEM
COLOUR
BRIGHTNESS
CONTRAST
TINT
SHARPNESS
Audio Status
ITEM
BASS
TREBLE
1
: No executed
: Cancelled
: Cancelled
: 10/63 steps.
: OFF
: OFF
: OFF
: OFF
: English
: AUTO
: When the memory IC replaced, the CPU writes the initial value of the AV Status
to the replaced memory IC as shown in below table.
PERSONAL DYNAMIC
34/63
33/63
63/63
31/63
31/63
PERSONAL
7/15
7/15
-11-
Press and hold for more than 2 seconds
NATURAL
34/63 34/63
33/63 36/63
63/63 63/63
31/63 31/63
54/63 31/63
MUSIC TALK
12/15 4/15
12/15 12/15
-
+
P
-
+
P
ECO GAME
31/63 28/63
33/63 33/63
40/63 50/63
31/63 31/63
24/63 31/63
NORMAL
7/15
7/15