Sony TC-FX205 - Leakage Test

Recording system 4-track 2-channel stereo
- Fast-forward and rewind time |
. | Approx. 100 sec. (with C-60 cassette)
Bias frequency 105 kHz
Signal-to-noise ratio (NAB, at peak level)
PE | (Sony HF-S)
Total harmonic distortion a: _
- 1.0% (with Sony METAL-ES cassettes)
Frequency response |
. DOLBY NR OFF .
¢ With TYPE IV cassette (Sony METAL-ES)
20-17,000HZ | : ; ;
30 - 15,000 Hz (+3 dB)
30 - 13,000 Hz (+3 dB, 0 VU recording)
30 - 15,000 Hz (DIN) |
e With TYPE Il cassette (Sony UCX)
20 - 17,000 Hz
30 - 14,000 Hz (+3 dB)
30 - 14,000 Hz (DIN)
e With TYPE | cassette (Sony HF-S)
20 - 16,000 Hz |
30 - 13,000 Hz (DIN)
Wow and flutter 0.08% WRMS (NAB)
+0.2% (DIN)
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Inputs Microphone inputs (phone jacks) ©
Sensitivity 0.25 mV (-70 dB)
For a low-impedance microphone ©
Line inputs (phono jacks) »
Sensitivity 77.5 mV (-20 dB)
Input impedance 47 kilohms
Outputs Line outputs (phono jacks)
Output jeve!l 0.44 V (-5 dB) at load
impedance 50 kifohms
Load impedance over 10 kilohms
Headphone output (stereo phone jack)
Output fevel —28 dB at a
load impedance of 8 ohms
Generai
Power requirements .
7 AEP model: 220 V ac, 50/60 Hz
(240 V ac adjustable by authorized
Sony personnel)
UK model: 240 V ac, 50/60 Hz
(220 V ac adjustable by authorized
Sony personne!)
US, Canadian model: 120 V ac, 60 Hz
E model: 120 or 220—240 V ac adjustable,
50/60 Hz
Power consumption
8 watts -
_ Dimensions Approx. 430 x 105 x 250 mm (w/h/d)
a (17 * 44/, x 97%, inches)
i ni og te including projecting parts and controls
Weight Approx. 3.3 kg (7 Ibs 5 02)
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SAFETY CHECK-OUT (US Model)
After correcting the original service problem,
perform the following safety check before releasing
the set to the customer: |
Check the antenna terminals, metal trim, ‘‘metallized”’
knobs,. screws, and all other exposed metal parts for
AC leakage. Check leakage as described below.
LEAKAGE TEST
The AC leakage from any exposed metal part to
earth ground and from all exposed metal parts to any
exposed metal part having a return to chassis, must
not exceed 0.5 mA (500 microampers). Leakage
current can be measured by any one of three
methods. |
1. A commercial leakage tester, such as the
' Simpson 229 or RCA WT-540A. Follow the
manufacturers’ instructions to use these instru-
ments.
2. ° A battery-operated AC milliammeter. The Data
- Precision 245 digital multimeter is suitable for
thisjob. . -
3. Measuring the voltage drop across a resistor by
means of a VOM or battery-operated AC volt-
meter. The “limit” indication is 0.75 V, so
analog meters must have an accurate low-
voltage scale. The Simpson 250 and Sanwa
SH-63Trd are examples of a passive VOM that
is suitable. Nearly all battery operated digital
multimeters that have a 2 V AC range are
suitable. (See Fig. A)
To Exposed Metal
Parts on Set
AC
voltmeter
(0.75 V)
= Earth.Ground
Using an AC voltmeter to check AC leakage.