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MODEL TPR-216EE,UK
AIWA
ADJUSTMENTS
OF
RADIO
SECTION
1. Instruments Required
=
Locations of Main Parts
Signal Source
1. RF Signal generator (AM, FM).
2. IF sweep generator (Centered 455 kHz/468 kHz for AM
.
Li0s
and 10.7 MHz for FM).
» Lea
ss
ee
=
3.
Loop antenna
l
tay
wii
Hl |
4. Capacitor 8pF
Output !ndicator
1. V.T.V.M.
L
EARTH
Kn
.
(FM ANT COIL)
[ANTENNA
|
2. Oscilloscope
TO-1(EM
TRIMMER)
©) ANT TRIMMER
8
Regulator Adjusting Steps
1. AM (MW)
1st:
IF
2nd:
RF frequency range
3rd:
RF tracking
2. SW
Ist:
RF frequency range
2nd:
RF tracking
3. LW
1st:
RF frequency range
2nd:
RF tracking
me
2nd:
RF frequency range
AN-IF Alignment
3rd:
RF tracking
Step
signal source
Adjust
Adjust for
+
| cial
gees
Step
Signal source
Set signal to
indicator
Set radio dial to
Adjust
Adjust for
AM signal gen.
V.T.V.M.
Loop antenna
MW 515 kHz
AM det.
515 kHz
L108
(Modulated)
output tab
{Low end)
(OSC coil)
1650 kHz
AM det.
1650 kHz
TC-6
,
(Repeat steps 1 and 2 to obtain frequency range.)
600 kHz
AM det.
L105
a
a
masa eas
(Modulated)
output tab
600 kHz
(ANT coil)
|
Maximum
|
Sf
ena
antenna
Pe
tl
Modulated)
pee tab
1400 kHz
(ANT trim.)
Maximum
TP-|
(TEST POINT)
TC-2
{FM OSC TRIMMER)
TC-4
(SW OSC TRIMMER)
'
P
T
T
igs
TC-HXSW ANT
TRIMMER}
(LW
(FM OSC COIL)
()
(S|
ay rv)
(SWANT COIL)
(|
L
Lio
Lio?
108
{SW OSC COILYMW
OSC CONXLW
OSC COIL)
&
IF
BLOCK
rales 0 i
PUL
BLU
CFT40x(AM IFT}
Qo
SS
JFTso0i(RATIO-
IF Tase(RATIO-P)
¥
Alignment
indicator
Oscilloscope
AM det.
output
tab
Set signal to
Set radio dial to
Sweep centered
455 kHz EE model
468 kHz UK model
(Repeat steps 4 and 5 minimize tracking error, and also step 3 if necessary.)
SW-RF Alignment
[Signal source
Step
Signal source
Set signal to
mngiester
Set radio dial
Adjust
Adjust for
re
——:
'ta
:
AM det.
5.8 MHz
L107
iiowaray | (08Cceid
.
18.5 MHz
AM det.
18.5 MHz
TC-4
2
| Antenna terminal
(Modulated)
output tab
(High end)
(OSC trim.)
(Repeat steps 1 and 2 to obtain frequency range.)
SW 5.8 MHz
(Modulated)
Maximum
Maximum
:
5.8 MHz
AM det.
L104
Antenna terminal
(Modulated)
output tab
5.8 MHz
(ANT coil)
|
Maximum
18.5 MHz
AM det.
TC-3
Antenna terminal | (Modulated) | _outputtas | 189 MI
(ANT trim)
_Meximum
(Repeat steps 4 and 5 to minimize tracking error, and also step 3 if necessary.)
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