Aiwa XS-DV335 Service Manual page 41

<FM Adjustment>
Make sure that the wirings/connections as shown in the diagram below are established before FM adjustment.
9. Tracking Check
Requirements
Measuring instruments: Millivoltmeter
Test point: Lch, Rch, GND
(1) Adjust the S.S.G. setting as follows: carrier at 98.0MHz, distortion rate at 75kHz, and output
level at 72dBuV.
(2) Check that the millivoltmeter indicates approximately 250mV or below.
10. Separation Check
Requirements
Measuring instruments: Millivoltmeter
Test point: Lch, Rch, GND
(1) Adjust the S.S.G. setting as follows: carrier at 98.0MHz, distortion rate at 67.5kHz, and output at 72dBuV.
(2) Switch the S.S.G. to PILOT ON, and set at PILOT 7.5kHz.
(3) Check that the S.S.G. outputs only from Lch and that the difference between Lch and Rch at that time
indicates 12dB or below.
(4) Check for Rch in the same manner.
11. Auto-Stop Function Check (FM)
Requirements
Test point: Lch, Rch, GND
(1) Adjust the S.S.G. setting as follows: carrier at 98.0MHz, distortion rate at 75kHz, and output at 40dBuV.
(2) Start the tuning search mode, and check that the auto-stop function is applied at 98.0MHz.
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Standard Signal Generato r
SET
TP
Lch
Rch
GN D
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Connected to each measuring instrument.
AC MILLIVOLTM ETE R
CH1
Lch
GN D
GND
Rch
AC MILLIVOLTM ETER
CH1
Lch
GN D
GN D
Rch
CH2
CH2