Sharp OPTONICA RT-2050H Service Manual

RT-2
APFS
[JU ][ cosy system | ©
"Dolby" and ''Double-D" symbol are trade marks of Dolby
Laboratories Inc. Manufactured under license from Dolby
Laboratories Inc.
MODEL
SPECIFICATIONS
Type:
Power Source:
Power consumption:
Semiconductors:
Dimensions:
Weight:
Input circuitry:
Output circuitry:
Tape:
Tape speed:
RT-2050H
In the interests of user-safety the set should
be restored to its original condition and only
parts indentical to those specified be used.
AC operated 4-track 2-channel Solid- Record/playback
state Stereo Cassette Tape Record/ time: 60 minutes (C-60)
Playback Deck with Built Dolby Recording system: AC bias system (84kHz)
"B" type Noise Reduction & Full- Erasing system: AC erasing
automatic Stop System Fast Forward &
AC 110/220/240V, 50/60Hz Rewind time: 100 seconds (C-60)
16 watts Wow & Flutter: 0.18% (DIN 45 500)
41-Transistor, 2-FET, 52-Diode, 0.058% WRMS
2-Silicon Controlled Rectifier, 3-Light Frequency response: Normal tape;
Emission Diode 30 — 13,000Hz (DIN 45 500)
18-3/8"(W) x 13-15/16(D) x 5-3/4''(H) 30 — 13,000Hz + 3dB
[467mm(W) x 354mm(D) x 146mm(H)] CrO2 or Fe-Cr tape;
22.4 lbs. 30 — 14,000Hz (DIN 45 500)
(10.2kg) 30 — 14,000Hz + 3dB
Microphone jack 300 — 2k ohms x 2 S/N ratio: Better than 52dB, For normal tape
Line input jack 50k ohms x 2 (Weighted) at LINE-IN; without Dolby
Record/playback noise reduction.
socket 40k ohms x 2 Dolby N.R. effect: 10dB (at over 5kHz)
Headphones output Input sensitivity &
jack 8 ohms x | input impedance: Microphone 0.2mV @300 ohms
Line output jack 50k ohms x 2 Line 70mV @50k ohms
Record/playback Record/playback
socket 470k ohms x 2 socket 4mV
Philips Standard compact cassette tape Output level & loaded
1-7/8 ips impedance: Headphones 2mW (0dB) @8 ohms
(4.8cm/sec) Line 580mV(0dB) @50k ohms
Record/playback
socket 580mV(0dB) @470k ohms