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RF-2900LBS
Procedure
To remove—.
Remove—.
Shown in fig—.
20
7
Preselect Circuit Board
Screw (3 x 10)
16
Screw (3 x 16)
|
16
Indicator
Unsolder
17
* 1. Turn the tuning knob fully counter-clockwise.
* 2, Turn the tuning capacitor shaft fully counter-clockwise.
«3. Turn the tuning shaft fully counter-clockwise.
* 4, Set the dial scale at the position, as shown in fig. 12.
* 5. Refer to dial scale removal instruction.
*« 6. Loosen the two (2) screws (V) for the dial scale gear, as shown in fig. 13.
* 7. Set the catch of dial scale gear to the start point of dial scale, as shown in fig. 14.
* 8. Turn the tuning shaft fully counter-clockwise.
* 9. After mounting the PC board (IF, RF circuit), turn the dial scale by pushing the catch of dial scale and set the start
point of dial scale to the catch of cabinet, as shown in fig. 15.
* 10. Tighten the two (2) screws (W) for the dial scale gear, as shown in fig. 15.
BLOCK DIAGRAM
TELESCOPIC
ANTENNA
Diode
Switching
AM/SW
Leet]
RF GAIN
COUTROL
CERAMIC FILTER
"Yrsour
REC OUT
.
Cie
CERAMIC
=
ee
ee
ee ee
Re
a
a
ee
OO
eee
FILTER
vt
.
t
wa
[| TUNE/BaTT
METER
o
METER
°
9
|
|
ai
AMP
ts
;
|
a
!
osc
DE-EMPHASIS.
Ste
BASS
TREBLE
a
Sis
2
a
N
(77
om
mame
AH
AGC
oacc
[O
|
Y
VOLUMI
a
wet,
|
AM DET
be)
UME:
'SW Ist/
|
EP/EXT SP
AF AMP
CERAMIC FILTER
iM
@—-O--——+-—- 4
a
w e f
teas
3
IBFO PITCH|
q
°
CONTROL
Lo
sy
&
(IMP 82)
{C302
COUNTER DISPLAY
POWER AMP
COUNTER
camel earn ae
s.iemiz
7
erysTat |
24#O
boesecee
Fig. 18
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