GENERAL (serv.man2). How to get into service mode - Sharp TV Technical Bulletin (repair manual). Page 6

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Sharp Electronics (UK) Limited
Reference AVW060599/1
Revision  1
White – Carry out as required, Yellow – Carry out as required and whenever the unit comes in for service, Red – Carry out on all units
CTV990504
Month of Issue: May 1999
        Classification:          White
TELEVISION TECHNICAL BULLETIN
Page 6 of 7
4BSA Chassis
DV3760H, DV3770H and DV5161H
1.  Connect a test pattern to the antenna terminal
2.  Tune to this signal
3.  Connect a jumper wire between terminals 3 (GND) and 6 (service) of connector TB on the Main PWB
4.  Press the MODE button on the remote control
5.  'SERV' will appear on the screen
6.  Remove the jumper wire
To select an adjustment use the channel up and down buttons
To change the data press the data buttons
The changes are stored automatically
Turn the set off at the mains to exit the service mode.
5BSA Chassis
37AM12H, 37AM23H, 37AT25H and 51AT15H
1.  Connect a test pattern to the antenna terminal
2.  Tune to this signal
3.  Turn the receiver off using the mains button
4.  Press the volume down and channel up buttons on the front of the receiver at the same time
5.  Keeping these buttons pressed, turn the mains on
6.  When the set starts up it will be in service mode - 'SERV' appears on the screen
7.  Release the two buttons
Use the channel up and down buttons to move between the options
Use the volume control buttons to change the data
The data is stored automatically at switch off
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