Uniden Harry User manual

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SERVICE MANUAL
HARRY

ALIGNMENT PROCEDURE
Alignment of P.LL
1. Test Equipment Required
DC Power Supply : 8V(DC
Oscillator
2. Alignm ent Procedure
Step Preset to Adjustment Remarks
1TX40CH L702 Connect a DC Voltmeter to VCO.
Adjust L702 for 4.5V ± 0.1V reading on the DC Voltmeter.
2RX 40cH L701 Ditto
3. Alignm ent Points
DC Voltmeter
: 10.2419 MHz
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H AR RY 1

Alignment of FM PCB
Test Equipment Required
DC Power Supply (DC 8V FM SG 450KHz
Oscilloscope AC Voltmeter 2
Oscillator DC Voltmeter
2. Alignm ent Procedure
PA : OFF
Step Preset to Adjustment Remarks
1
RX
FM SG : 3mV out
1kHz, ± 15kHz
dev.
L601 Connect a DC Voltmeter to between TP601 and GND.
Adjust 1601 for 4.5 ± 0.1V reading on the DC Voltmeter.
Check if voltage value is 150—350 mV.
2
TX
Osc : 10mV
1kHz
VR601
middle
position
Adjust VR601 for 4—9 mV reading on the AC Voltmeter.
1
UT-JttZ H ARRY 2

Alignment of Transmitter Section
1. Test Equipment Required
DC Power Supply (DC 13.8 V Dummy Ioad50£2
OSC : 1 kHz RF power meter
Deviation meter
2. Alignment Procedure
Step Preset to Adjustment Remarks
1
CH 19
AM
Mod. 500mV
input
L6 and L9 Connect the RF power meter to Antenna jack.
Adjust coils for maximum reading on the RF power meter.
2No. Mod.
CH19 L6 Adjust L6(CW for 4.0W reading on the RF power meter.
3Ditto VR2 Adjust VR 2 so that the 4th LED just turns on.
4
Mod. 30mV
input
CH 1
FM
VR601 Adjust VR601 for ± 3kHz dev. reading on the déviation
meter.
Nöte : After Alignm ent, lock with paraffin the area of LS and L9.
3. Alignm ent Points
и т - з « г HARRY 3

Alignment of Receiver Section
1. Test Equipment Required
DC Power Supply : DC 13.8V
5.5. G.
2. Préparation for Alignm ent
5.5. G. : 1kHz 30% Mod.(AM
1kHz ± 1.5 kHz Dev. (FM
Output impédance : 8Q
Squelch : Min (Counterdockwise
3. Alignm ent Procedure
Dummy load : 50Q
Frequency : 27.185 MHz
Attenuator : OdB = O.SpV
Step Preset to Adjustment Remarks
1AM
CH 19
volume : Max.
Ll.2 ,3
and L11
Connect the S.S.G. to antenna jack and AF VTVM to
External speaker (J3 .
Adjust coils for maximum reading on the AF VTVM
2Ditto VR4
Set the S.S.G. attenuator to -3dB and adjust the output
power to 5mW. (If the adjusting range is underthe desired
power, set VR2 to the minimum. If the one is over the
desired power, set it to the maximum.
3AM
CH 19
No MOD VR3' Set the S.S.G. to 1000mV output level.
Adjust VR3 so thatthe4th LED just turns on.
4
AM
CH 19
Vol. : Max
Squelch : Max
VR1 Adjust VR1 so that squelch just breaks.
5FM
CH 19 L601 Set the S.S.G. to 100pV output level. Adjust L601 for 4,5 + 0.2V reading on the DC Voltmeter.
4. Alignm ent Points
UT.J22Z HARR Y 4

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HOTES:
. RESISTANCE VALUES ARE SHOVN IN OHMS UNLESS
OTHERVISE NOTED. (K-KILO OHM. M*MEG OHM
2. RESISTOR WATTAGES ARE 1/8V UNLESS OTHERVISE
NOTED.
3. CAPACITANCE VALUES ARE INOICATED IN MICRO FARADS
UNLESS OTHERVISE NOTEO. tP-MICRO-MICRO FARADI
5. VOLTAGE IN ΠD SHOVS TX CONDITION.
6. VOLTAGE IN NO. MARK SHOVS RX CONDITION.
DES1GN.BT DRAWN.BY UNIDEN NO.
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HOOEL NO.
H A R R Y
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