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SERVICE ADJUSTMENTS
ADJUSTMENT PREPARATION:
1. You can make the necessary adjustments for this unit with
either the Remote Control Unit or With the adjustment
tools and parts as given below.
2. Adjustment with the Remote Control Unit is made on the
basis of the initial setting values, however, the new setting
values which set the screen to its optimum condition may
differ from the initial settings.
3. Make sure that AC power is turned on correctly.
4. Turn on the power for set and test equipment before use, and
start the adjustment procedures after waiting at least 30
minutes.
5. Unless otherwise specified, prepare the most suitable reception
or input signal for adjustment.
ADJUSTMENT EQUIPMENT
1. DC voltmeter (or digital voltmeter)
2. Oscilloscope
3. Signal generator (Pattern generator) NTSC
4. Remote control unit
5. TV audio multiplex signal generator.
6. Frequency counter
ADJUSTMENT ITEMS
Adjustment item
B1 POWER SUPPLY
VIDEO / DEF. CIRCUIT
IF VCO
RF. AGC
FOCUS
V. SIZE
H. POSITION
Adjustment item
WHITE BALANCE
Low Light
High Light
PICTURE
SUB BRIGHT
SUB CONTRAST
MTS COLOR
SUB TINT
No. 51964
6. Never touch any adjustment parts which are not specified in the
list for this adjustment - variable resistors, transformers,
condensers, etc.
7. Presetting before adjustment.
Unless otherwise specified in the adjustment instructions,
preset the following functions with the remote control unit:
User mode position
MENU ITEM
VIDEO STATUS
BASS/TREBLE/BALANCE
TINT / COLOUR / PICTURE
BRIGHT / DETAIL
MTS
Adjustment item
MTS CIRCUIT
MTS INPUT LEVEL check
MTS STEREO VCO
MTS SAP VCO
MTS FILTER check
MTS SEPARATION
PURITY / CONVERGENCE
Purity
Static / Dynamic convergence
AV-20320
AV-20321
PRESET VALUE
STANDARD
CENTER
CENTER
STERO
11
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