Sony HMK-70 Service Manual

SPECIFICATIONS
FM TUNER SECTION A-M TUNER SECTION
: Frequency range: MW 530 to 1,605 kHz
Frequency range: 87.5 to 108 MHz LW 150 to 350 kHz
Antenna terminals: 75 ohms unbalanced
Antenna: MW/L.W Built-in ferrite rod antenna
300 ohms balanced f ee ; :
and external antenna jack
Intermediate frequency: MW/LW 468kHz
Sensitivity: MW 48 dB/m (250 uV/m), built- .
Signal-to-noise ratio: 65dB in antenna
26 dB (20uV), external antenna
LW 52dB/m (400 nV/m), built-
Intermediate frequency: 10.7MHz
Usable sensitivity: 7dB (2.2uV), S/N=30dB
Capture ratio: 2dB
Selectivity: 50dB in antenna
Image rejection:
40dB
" 45 dB (180,V), external antenna
Lf rejection: 90 dB
Signal-to-noise ratio: MW/LW 50dB
A-m suppression:
50dB
Harmonic distortion;
MW/LW 0.8% at 400 Hz
Frequency response:
20 to 15,000 Hz
Image rejection: . MW
40dB at 1,900 kH~
.
LW 50dB at 160 kHz
Harmonic distortion: Mono: 0.5% at 400 Hz
Stereo: 1.0% at 400Hz I-f rejection: MW 40dB at 1,000 kHz
: LW 40cB at 240kHz
Fm stereo separation: Better than 35 dB
19 kHz, 38 kHz
. suppression: 45 dB 2
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SERVICE MANUAL
7B Ae