Nikko Gamma I - Page 7

DISASSEMBLY
Note: Three digit numbers circled in this chapter (C)) are
represented by a (*) in the parts listing.
Cabinet Cover Removal
Remove eight tapping screws from the top and both sides
of the metal cover as shown in Photo 1.
Bottom Plate Removal
Remove nine tapping screws from the bottom of the
unit and lift away.
Power Transformer Removal
1. Remove two tapping screws (8, 9) (Photo 2).
2. Remove two tapping screws (10, 11) (Photo 2).
3. Disconnect all the power transformer cables before
lifting
out
the
power
transformer.
Photo
1
* To reassemble, reverse the procedure.
Front Panel Removal
1. As indicated in Photo 2, disconnect three LED con-
nectors from the LEDs mounted on the front plate 1
by
pulling
them
backward.
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7
2.
Remove
POWER
knob
from
the
front
of
the
unit
pubes
;
by
pulling
it
forward.
Using
a
hexagon
wrench,
remove
TUNING
and
OUTPUT
LEVEL
knobs
from
the
front
of the unit. re“ eee
3.
Remove
two
nuts
(1,
2)
(Photo
3)
and
lift
out
front
eecee
panel.
a
* Toreassemble, reverse the procedure.
Meter and Meter Lamp Replacement
1. Using Jong nose pliers, remove two push rivets (2, 3)
(Photo
2).
pHa
2. Lift “BACK GND G2 PLATE” (1) (Photo 2) up and.
out of the unit.
3. Remove clamp spring before removing meters.
4. To replace meter lamps, disolder A & B (Photo 4).
* To reassemble, reverse the procedure.
{F and MPX/Regulator Circuit Parts Replacement
1. Remove “BACK GND G2 PLATE” (1) (Photo 2).
2. Remove four tapping screws (4 — 7) (Photo 2). Using
a soldering iron, disconnect one cable (A) (Photo 2)
from the wire wrapping pin. Lift the IF circuit board
for service.
3. {f necessary, disconnect three cables as follows:
Two cables (B & C) (Photo 2) from the wire
wrapping pins and One cable (C) (Photo 4) from
the bottom of the front end.
Dial Lamp Removal
1. Remove lamps from the REFLECTOR (light guide
acrylic resin plate). (Photo 2)
‘ To reassemble, reverse the procedure.
Photo 4