CASIO TV350C
Manual de Servicio

Video Detection Coil Adjsutment * Open soldering pad IF. Pattern Signal generator generator TV-350 Set Low-pass filter

Oscilloscope

Input TP2

Output TP3

R=180 ohm C=0.01 µF Input Input Connection Point Pattern generator Signal generator Input Signal Color bar 38.9MHz 41 ± 3dBµ Adjust Output Connection Low-pass filter Oscilloscope Output Point Result

TP2

T200

TP3

Adjust for DC level at mini-

AFT Coil Adjustment * Open soldering pad IF. Sweep generator TV-350 Set

Oscilloscope

Voltmeter

Input TP2

Output TP4

Sweep generator

TP2

38.9 ± 5MHz (Sweep) Marker: T201 38.9MHz 70dBµ

Voltmeter Oscilloscope

TP4

Adjust for 1.8 ± 0.2V reading on voltmeter. Confirm that the marker is at the middle of S-curve on oscilloscope.

Contrast Adjustment * Open soldering pad IF. Pattern generator Signal generator TV-350 Set Low-pass filter Input TP2 Output TP5 R=100 ohm C=2700 pF Pattern generator Signal generator
�6�

Oscilloscope

TP2

Color bar 38.9MHz 70dBµ

Adjust step form wave to read VR300 Oscilloscope TP5 0.75 ± 0.05 Vp-p.