Yamaha crx-e200 Service Manual page 11

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AM Adjustment
Connection Diagram (Measuring instruments)
1) Sensitivity verification
Adjustment item
Step
Verification of
1
sensitivity
Verification of auto
2
tuning
TE
L 13942296513
* : Execution of FACTORY PRESET (Refer to page 7.) will facilitate setting reception frequency for adjustment.
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(This should be done after FM adjustment.)
AM
AM SG
dummy
antenna
GND
Signal (ANT IN)
AM ANT
1080kHz
1kHz
Modulation off
AM ANT
60dBµ
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2 9
8
AM loop antenna
L
AM ANT
TUNER
R
P. C. B.
REC
OUT
Reception Adjustment
frequency point
1080kHz
* (B-2)
Q Q
3 6 7 1 3
30 16
1 15
.
Adjustment of discriminator balance
9 4 2 8
ACVM
DIST. M
Oscilloscope
Test point
Rating
AM ANT
S/N should be 20dB at frequency
of 1080kHz.
Check to ensure that the voltage at
the ANT terminal is 54dBµ or less.
Auto reception should be avail-
able when the tuning key is moved
UP and DOWN.
1 5 0 5 8 2 9 9 4
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co
RX-E200
9 9
2 8 9 9
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