Teac CT-M342, Service Manual

Page: 10 / 52

SM-32PM P.8
VIII. WHITE BALANCE ALIGNMENT STEP
(Deqauss the picture by deqaussing coil if necessary)
1. Disconnect the any input signal,set the blue black OFF.
2. Enter to D HODE.
3. Adjust the RCUT,GCUT,BCUT value to 80,GDRV,BDRV to 45,BRTS to CO.
4. Adjust the BRIGHT,CONT to min.
5. Akjust the screen VR (on the FBT) until the show cannot just be screen.
6. Connect the VOLT meter ‘+’ to CRT BOARD G2,(-) to GND and get the reading value.
7. Adjust the screen VR lead the reading value reduce 25 + 5v
8. Adjust the BRTS set to F6,and set BRIGHT,CONT to mid.
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IX. SUB-BRIGHTNESS ALIGNMENT
1. Receive a Colour Bar Pattern.
2. Press PICTURE mode select BRIGHTNESS, CONTRAST adjust value to minimum.
3. Select BRTS in D-MODE.
4. Adjust value the brightness bar can just be seen.
X. FOCUS ALIGHMENT
1. Set the Brightness and Contrast to middle position.
2. Receive a Monoscope Pattern.
3. Adjust focus control to obtain sharpest picture.
¡C ¡C ¡C ¡C ¡C
XI. HIGH POT TESTING
1) Short the L-pole and N-pole of AC line cord.
2) Switch on the power switch of the TV Set.
3) Connect The High Pot Tester (-) to L and N pole, (+) to the
METAL PART of CABINET.
REMARK:
(1). If no other specity,the strength of input signal should
be 70dB + 10dB.
(2). The HIGH POT TESTER can have < + 5% tolerance.
Receive a Black and White Pattern.
Select Remote handset direct key (2) and (3) button adjust GCUT and BCUT to minimum
value,Press(1) button adjust RCUT to middle value.
Press Picture mode, select Brightness and Contrast adjust value to minimum.
Press handset direct key (2) button to obtain a yellow line.
Press handset direct key (3) button to obtain a white line.
Press handset direct key (-/--) button again.
Press CH button select GDRV and BDRV item adjust value to make the
picture unifoumlywhite (9300 K + 3JND).
TEST SYANDARD
CONDITION
SAFETY STD.
TEST STANDARN
FOR PRODUCTION
VDE,SAA 3.0KV 10mA / 1MIN
>3.5KV <10mA / >10 SEC.
UL 1.0KV 5mA / 1MIN
>1.25KV <5mA / >1 SEC.
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