STR-WX7
E Model
Australian Model
SERVICE MANUAL
FM STEREO/FM-AM RECEIVER
MICROFILM
SPECIFICATIONS
STR-WX7 is the tuner and amplifier
section in MHC-WX7AV.
Amplifier section
The following measured at AC 120, 220, 240 V 50/60 Hz
DIN power output (Rated) (FRONT)
120 + 120W (6
Ω
at 1kHz DIN)
Continuous RMS power output (Reference)
FRONT SPEAKER: 150 + 150W
(6
Ω
at 1kHz, 10% THD)
CENTER SPEAKER: 60W
(8
Ω
at 1kHz, 10% THD)
REAR SPEAKER: 40 + 40W
(8
Ω
at 1kHz, 10% THD)
Inputs
MD/VIDEO 1 IN (phono jacks): voltage
450/250mV, impedance 47k
Ω
AV INPUT AUDIO (phono jacks):
voltage 250mV, impedance 47k
Ω
MIX MIC (phone jack): sensitivity 1mV,
impedance 10k
Ω
Output
MD/VIDEO 1 OUT (phono jacks):
voltage 450/250mV, impedance 1k
Ω
PHONES (stereo phone jack): accepts
headphones of 8
Ω
or more.
FRONT SPEAKER:
accepts impedance of 6 to 16
Ω
CENTER SPEAKER:
accepts impedance of 8 to 16
Ω
REAR SPEAKER:
accepts impedance of 8 to 16
Ω
SUPER WOOFER:
Voltage 1V, impedance 1k
Ω
AV INPUT VIDEO (phone jack): 1Vp-p,
75
Ω
Outputs
MONITOR OUT (phone jack): 1Vp-p,
75
Ω
5Tuner section
FM stereo, FM/AM superheterodyne tuner
FM tuner section
Tuning range
87.5 – 108.0MHz
Antenna terminals
75
Ω
unbalanced
Intermediate frequency
10.7MHz
AM tuner section
Tuning range
Middle Easten models:
531 – 1,602kHz(with the MW interval set at
9kHz)
5.95 – 17.90MHz (with the SW interval set
at 5kHz)
Australian, Thai models : 531 – 1,602kHz(with the AM tuning
interval set at 9kHz)
530 – 1,710kHz (with the AM tuning
interval set at 10kHz)
Other models:
MW :
531 – 1,602kHz(with the MW tuning
interval set at 9kHz)
530 – 1,710kHz (with the MW tuning
interval set at 10kHz)
SW :
5.95 – 17.90 MHz (with the SW tuning
interval set at 5kHz)
Intermediate frequency
450kHz
Antenna
AM loop antenna
External antenna terminal
— Continued on next page —
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