Electrical Adjustments; Equipment Necessary For Adjustment; Special Implements For Electrical Adjustment; Standard Setup - JVC TK-C553U Service Manual

2.1 EQUIPMENT NECESSARY FOR ADJUSTMENT

Instrument
Oscilloscope
Vectorscope
Frequency counter
Multimeter
TV monitor

2.2 SPECIAL IMPLEMENTS FOR ELECTRICAL ADJUSTMENT

1 Gray scale chart <Part No. : GS2L>
Reflective type

2.3 STANDARD SETUP

• For convenient adjustment of the lens to the proper angle, remove the dome cover.
• Set the dip switch on the (SW board S306) L/L to OFF and TERMINATION also to OFF.
Test pattern
3200K halogen lamps
2-1
SECTION 2

ELECTRICAL ADJUSTMENTS

Capable of measuring 100MHz or higher bands and calibrated.
Must be calibrated.
Readable in 8 or more digits. Constancy of 0.1 ppm/1 × 10
Input impedance of 10 MΩ or higher and calibrated.
Color type instrument with a 75 Ω video input.
2 Color bars chart <Part No. : GC-2A>
W Y
TK-C553
Condition
–7
Cy G Mg R B
L
Reflective type
Terminal base
assembly
75 Ω
terminator
Vectorscope
AC 24 V
or more at 0°C to 40°C and calibrated.
3 Color bars chart <Part No. : CC-2T>
W Y Cy G Mg R B
L
Transmissive type
75 Ω
terminator
WFM Color monitor
Oscilloscope