Read Sharp 37AM-12H (serv.man9) Technical Bulletin online
Sharp Electronics (UK) Limited
Originator AvW Supervisor Approval Date / / Reference PJCHDLCK MK2
Revision
White – Carry out as required, Yellow – Carry out as required and whenever the unit comes in for service, Red – Carry out on all units
CTV970208
Month of Issue:
Classification: White
TELEVISION TECHNICAL BULLETIN
Page 1 of 1
MODELS
37AM23H
37AM12H
37AT25H
51AT15H
SYMPTOM Unit stuck in the child lock mode.
CAUSE
Incorrect PIN number or data corruption.
ACTION
To reset the child lock mode, follow the procedure given below.
1. Switch the television on ( Mains switch ).
2. Press the volume down button on the television and the child lock button on the
2. Press the volume down button on the television and the child lock button on the
remote control simultaneously.
3. Press the mode button on the remote control.
4. Using the channel up and down buttons, move to the child lock position.
5. Press the mode button again.
6. Select a new PIN ( Do not forget it ).
7. Select exit and press mode again.
4. Using the channel up and down buttons, move to the child lock position.
5. Press the mode button again.
6. Select a new PIN ( Do not forget it ).
7. Select exit and press mode again.
Note that this procedure is shown in the service manual.
Alternativly the NVM can be reprogrammed by changing the following locations.
Location
Purpose
Default
C5
Password on/off
00
C6
First Digit of PIN number
05
C7
Second Digit of PIN number
05
C8
Third Digit of PIN number
05
C9
Forth Digit of PIN number
05
To turn off the child lock function change location 0B to 98 and back on again to B8.
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