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Horizontal Width Adjustment
\
(1)Receive the monochrome
circular pattern.
(2) Set
the
Brightness
and
Contrast
to
maximum.
(3) If the picture is too wide+
Cut J401.
If the picture is too narrow*
Short J401.
Important Note:
If J401 is cut, its gap must be more than
5mm to prevent sparks.
'40'=0rethan5mm
High Voltage Check
(1)
Connect a high voltage probe to anode lead
of the picture tube.
(2) Receive the monochrome
circular pattern.
(3) Set
the
Brightness
and
Contrast
to
maximum.
(4) High voltage must be 25KV * 1KV.
MAIN UNIT
/
/
a
n
K2X
u
IC81 O
I
MEMORY
- .
..
SW
F=l"
II
POWER / DEF. UNIT
Clock Frequency Confirmation
/
(1) Receive the most clearest station in your area.
(2) Connect Quartz Counter to IC800 pin-1 9 and the ground.
(3) Connect diode(l S1 555) between IC800 pin-36 and IC800 pin-37.
I
IC800(CPU)
DIODE (1S1 555)
(4) Disconnect the AC power plug from the mains to reset the CPU(IC800).
(5) Reconnect the AC power plug to the mains, and switch on the TV set.
CPU is in the Clock Adjustment
mode.
(6) Confirm the OSC frequency is 32 Hz.
(7) Disconnect
diode from the CPU, and disconnect
the AC power plug from the
mains to reset the
CPU.
Clock Adjustment mode is reset.
.
–18–
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