Sharp 25RM100N color TV - Service mode entry_Power supply and Horizontal Output Circuit Diagram. How to initialize the settings
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* Before
putting unit into the service mode, check that customer adjustments are in the
normal mode. Use the reset function in the video adjustment menu to ensure
customer controls are in their proper (reset) position.
* Once in the
service mode, press the
Ch-up / Ch down button on
the remote controller
or at the
set. The service adjustment number
will vary in increments
of one, from "S01" to "OP2.
* Press the
Vol-up / down button to adjust the data number.
To enter the
service mode and exit service mode.
# While pressing
the Vol-up and Ch-up buttons at the same time, plug the AC cord into a wall
socket. Now the TV set is switched on and
enters the service
mode.
# To exit the service
mode, turn the television off by pressing the power button.
RF AGC Adjustment
1. Receive a
good local channel.
2. Enter the
service mode and select the service adjustment "S08".
3. Set the data
value to point where no noise or beat appears.
4. Select another
channel to confirm that no noise or beat appears.
Note 1 : You
will have to come out of the service
mode to select another channel.
Note 2:
Setting the data to "00" will produce a black raster.How to initialize the TV
Holding down
both the Vol-up/CH-down buttons
on the TV
set at service
mode for more
than 2 seconds
will automatically write the above initial values into IC2101.
SMPS (Power Supply Regulator) & H-OUT SCHEMATIC _ CLICK ON THE PICTURES TO MAGNIFY
