Operation Check - Akai ACR-47MP Service Manual

Pll synthesizer stereo radio with compact disc player digital
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GENERAL SPECIFICATIONS OF SIGNAL
Standard frequency
Signal output
Modulation
AF output level
Power source voltage
AF load impedance
Balance
Tone
The signal strength read in this section is voltage on the antenna.
2-SPEAKER
FRONT
SPK.

OPERATION CHECK

FM
MW
LW
FM
MW
LW
MW
FM Stereo
FM/MW/LW
DC 14.0V (Backup voltage is the same as this)
4 ohm pure resistance
Center position of level
Center position
4-SPEAKER
RL.
SPR.
FL.
SPK.
DISTORTION
VTVM
METER
98.1 MHz (87.5, 108 MHz)
1000 kHz (522, 1620 kHz)
200 kHz (144, 288 kHz)
1 mV
5 mV
5 mV
400 Hz
30% MOD.
1 kHz
75kHz DEV.
46% for L only or
R only pilot level 8%
Test Diagram
2-SPEAKER
4-SPEAKER
RR.
SPK.
FRONT
SPK.
FR.
SPE.
DUMMY
ANTANNA
VTVM
AM SG
5
ACC (DV14.4V)
BACK UP (14.4V)
GROUND
POWER ANTANNA
MAIN UNIT
ANT
MPX
STEREOS
MODULATOR
FM SG

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