Service Adjustment With Replacing Memory Ic(Ic801) - Sanyo CP21SE1(V) Service Manual

Service Adjustments with Replacing Memory IC(IC801)
Note: The CPU (IC201) and memory IC (IC801) store the service adjustments data and controls data for each
circuit.When the Memory IC(IC801) 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 on the TV set for more than 2 seconds. The following picture appears on the
screen.
4.
Press the MENU on the TV set while the above On-Screen Display is still on the screen. The following picture
appears on the screen.
5.
Switch off the TV set by pressing the Power Switch button on the TV set while the above On-Screen Display is
still 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
- Colour system
[2] Required Service Adjustments
Readjust the following service adjustments.
Adjustments
RF AGC
Horizontal centre
Vertical Position
Vertical linearity
Vertical-S correction
Gray scale
Further adjustment please refer to page 14 and 15.
CLR
CLR
(displayed in red color)
: No executed
: Cancelled
: Cancelled
: 10/63 steps.
: OFF
: AUTO
Service Mode No. & Item
Item 105, RF DELAY ADJ
Item 18, H-PHA (PAL)
Item 16, V-SHIFT
Item 12, V-LIN
Item 14, V-SCO
Item 167 ~ 171
-
Press and hold for more than 2 seconds
(displayed in yellow color)
-
-7-
+
C H
+
C H