Hitachi CML176SXW, Service Manual

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2.9 Audio Technical specification (CML178SXW B Only)
2.9.1
2.9.2
General Description:
Output power : 1W + 1W maximum
Total harmonic distortion : Less than 1% (except speakers distortion)
Input signal sensitivity : 0.5Vrms for full output
Input impedance : /- 5%
Frequency response range : 100Hz – 20
K
Hz (except speakers response)
Difference of L and R output : Less than 2dB
Electrical characteristics (Tamb=25
°
)
Audio amplifier(USE Panasonic VK-723A Audio Analyser. )
Spec. Item Audio Input Freq.
Min. Typ. Max.
Comment
Input Voltage(V) - 5 -
Input Current(m A) - 500 800
Audio Voltage Gain 500mVrms 1KHz - - 6dB Volume Max.,load 4 Ω
Frequency Response 500mVrms 300Hz-20KHz -10dB - +10dB Volume Max.,load 4 Ω
Signal to Noise ratio 500mVrms 1KHz - - -40dB Volume Max.,load 4 Ω
Total harmonic distortion 500mVrms 1KHz 1% except speakers distortion
Cross talk 500mVrms 1KHz - - -30dB Volume Max.,load 4
Ω
Output Watt. 500mVrms 1KHz - - 1W Volume Max.,load 4 Ω
Volume Control - - - Analog
2.9.3 Speakers
2.9.4
Maximum power : 1W per speaker (max)
Impedance : 4ohm +/- 15 % @ 1
K
Hz 1.0Hz
Frequency response range : 300Hz – 20
K
Hz (S.P.L. – 10dB)
Total harmonic distortion : Less than 5% @ 0.125W 1
K
Hz
Headphone output
Output power : 1.6mW for 32ohms Headphone
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