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AV-14AM
SERVICE ADJUSTMENTS
BEFORE STARTING SERVICE ADJUSTMENT
1. There are 2 way of adjusting this TV:
REMOTE
CONTROL
UNIT
conventional
method
components.
2. The setting (adjustment) using the REMOTE CONTROL
UNIT is made on the basis of the initial setting values.
The setting values which adjust the screen to the
optimum condition can be different from the initial setting
values.
3. Make sure that connection is correctly made to AC power
source.
4. Turn on the power of the TV and measuring equipment for
warming up for at least 30 minutes before staring adjustment.
5. If the receive or input signal is not specified, use the most
appropriate signal for adjustment.
MEASUREMENT INSTRUMENT
AND FIXTURES
1. DC voltmeter (or digital voltmeter)
2. Oscilloscope
3. Signal generator (Pattern generator) [PAL / SECAM / NTSC]
4. Remote control unit
BASIC OPERATION OF SERVICE MENU
1. TOOL OF SERVICE MENU OPERATION
Operate the SERVICE MENU with the REMOTE CONTROL UNIT.
2. SERVICE MENU ITEMS
With the SERVICE MENU, various settings (adjustments) can be made, and they are broadly classified in the following items of settings :
" 1. IF
･･････････････････････
" 2. V/C
････････････････････
" 3. DEF ･･････････････････････
" 4. VSM PRESET ･････････････
" 5. PRESET ･･････････････････
" 6. TURBO TIMER ････････････
12
One is with the
and
the
other
is
using
adjustment
parts
For entering/adjusting the setting values (adjustment values) of the IF circuit.
For entering/adjusting the setting values (adjustment values) of the VIDEO/CHROMA circuit.
For entering / adjusting the setting values (adjustment values) # of the DEFLECTION circuit.
For setting the values of BRIGHT, STANDARD, and SOFT.
(VSM : video status memory)
This is used when the PRESET MODE is adjusted. [Do not adjust]
For quick setting the values of TIMER COUNT-adjustable not only by minutes but also by second.
If it is on, the time in TIMER mode changes from 1 minute into 1 second temporarily.
If you turn the TV power off, this setting becomes OFF automatically. (applicable to OFF TIMER,
ON TIMER, AUTO SHUTOFF). [Should be OFF]
6. Never touch parts (such as variable resistors, transformers
and condensers) not shown in the adjustment items of this
the
and
service adjustment.
7. Preparation for adjustment (presetting):
Unless otherwise specified in the adjustment items, preset the
following functions with the REMOTE CONTROL UNIT.
PICTURE MODE (VSM)
TINT / COLOUR / BRIGHT /
CONT / SHARP
VNR
BLUE BACK
AUTO SHUT OFF
ADJUSTMENT ITEMS
Adjustment item
B1 POWER SUPPLY
FOCUS adjustment
IF circuit adjustment
VIDEO/CHROMA circuit
adjustment
No. 56091
BRIGHT
Refer to VSM
OFF
OFF
OFF
Adjustment item
DEFLECTION circuit
adjustment
VSM PRESET adjustment
PRESET adjustment
PURITY / CONVERGENCE
Adjustment
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