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Sanyo AVM-1420MA Service Manual page 9

Uoc tda9370 with ntsc/pal-m / pal-n

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1. first color value set to 0, then Press "TEST" key on the Remote control unit of factory.
Press "0" to "9" key, (Mkey) and corresponding on-screen display will be appeared. But to enter M4-M9,
Must input passcord 828.
On TV screen "TEST" will be indicated, this means entered bus control mode.
And press following key, each function will be available.
3. may be intered TEST mode with remote control unit of user, press QV key and hold 4 seconds. and
then press MENU key, TV set may be entered TEST mode.
Remote Hand Unit keys
[M1]
[M2]
[M0]
[M1] menu
MENU0 Geometrical adjustment
Receive PAL standard Complete pattern signal.
Adjustment steps:
a) Adjust V. SLOPE, to the center horizontal line just appeare from half bottom shadow.
b) Adjust V. SIZE, to get 90% of vertical picture contents would be displayed on CRT.
c) Adjust V. SHIFT, the center horizontal line correspond to CRT vertical center.
d) Adjust H.SHIFT, to get the picture horizontal center correspond to CRT horizontal center.
Receive NTSC signal and repeat above [M0] and [M1] adjustment.
[M2] Menu
AGC Adjustment.
Receive 60dBμ(1mV)V
reduce gradually and just disappeared point.
[M3] Menu
CRTcut off and white balance adjustment.
Receive white signal.
a) CRT cut off adjustment.
1. Select "SC", then automatically vertical scan will be stopped.
2. Adjust SCREEN control on Flyback transformer to get the darkest single horizontal line (red,
green, or blue, sometimes shows more yellow, more purple or more white).
b) White balance adjustment.
1. Select RD/BD menu.
2. Adjust RD/BD to get colour temperature as x=281, y=311
c) Sub-Brightness adjustment. (Use stair case signal)
1. Select SB menu.
2. Adjust SB to get the darkest step being cutoff.
ICs Default Settings
[M3]
colour bar pattern signal,adjust AGC value(voltage from high to low),to noise
H
MENU1
V.SLOPE
V.SHIFT
V. SIZE
V.S
H.SHIFT
9
31
31
31
31
31

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