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TM-1500PS
SERVICE ADJUSTMENTS
TOOLS AND FIXTURES FOR
ADJUSTMENT
PRIOR TO STARTING
ADJUSTMENT
@
Dismount the top cover, rear cover and bottom lid.
@
Perform sufficient warm-up of the TV set and testers.
(for 30 minutes or more).
@
Unless specified otherwise specially in [ADJUSTING STEP]
given below, perform adjustment after setting the switches
and VRs on the front panel to the following -positions:
BLUE CHECK
: OFF
COLOUR OFF
: OFF
PULSE CROSS:
OFF
UNDER SCAN
: OFF
SYSTEM SW
: PAL
INPUT SELECT
: VIDEOA
CONTRAST
: CLICK position
BRIGHT
: CLICK position
CHROMA
: CLICK position
PHASE
: CLICK position
@
Regarding the list of the layout of adjusted parts, refer to
[ADJUSTMENT LOCATION] in [SCHEMATIC DIAGRAM}.
ADJUSTING STEP
POWER PCB
DC voltmeter or digital voltmeter
Oscilloscope
Pattern generator (PAL)
- If monoscope signal can be output, it is possible to perform
further accurate adjustment.
- The signal should be input to VIDEO A.
Color thermometer
- Adjustment is possible without it.
If available, however,
further accurate adjustment is possible.
Short jumper
10kQ resistor
In addition to the above, the following tools are necessary
to adjust the purity and convergence.
Magnetic eraser
Silicon bond (KE4866)
REICHLOCK or G2 bond
Measuring
Adjustment
PATTERN
GENERATOR
Adjustment of
B1 VOLTAGE
R913(B1
DC VOLTMETER
or
DIGITAL
VOLTMETER
POWER PCB
ADJUSTMENT) | 2.
. Input the total black signal.
Adjust the B1 adjust VR (R913) so that the voltage
between TP-91 and TP-E (7-) becomes DC 110V.
. Confirm that the B1 voltage scarcely changes even
when the input signal has been changed.
(No.50343) 11
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