Operation Check - Akai ACR-224MMU Service Manual

Cd/mp3/wma/usb/mmc/sd-receiver
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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
FM
MW
MW
FM Stereo
FM/MW
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 (65.0, 74.0MHz) (87.5, 108.0 MHz)
1000 kHz (522, 1620 kHz)
1mV
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.
FR.
SPE.
DUMMY
ANTANNA
VTVM
AM SG
ACC (DV14.4V)
BACK UP (14.4V)
FRONT
SPK.
GROUND
POWER ANTANNA
MAIN UNIT
ANT
MPX
STEREOS
MODULATOR
FM SG

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