Sangean WR-2, Service Manual

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1. ALIGNMENT FOR AM/LW IF
a. Required Instruments:
AM IF Sweep Generator with scope
b. Alignment Procedure
Mode Adjustment Procedure
(1) Press the power button to turn on the radio.
(2) Connect the input terminal of AM IF sweep generator in series with a
resistor of 1.2k ohm to the TP3 and TP4.
(3) Connect the RF output terminal of AM IF sweep generator to another test
point TP35.
(4) Adjust T1 to have a max. output with a marker frequency of 450 kHz on
AM T1
the sweep scope.
c. Instrument Connection
T1
TP4 TP3
100uF
IN
OUT
1.2K
Ω
TP3
RF
TP4 TP35
450KHz Marker
AM IF Sweep Generator
ALIGNMENT INSTRUCTIONS
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