Sharp rt 3838 h service manual

Page 1

= OPTONICA

SERVICE MANUAL

R T8838 H

DE] DOLBY SYSTEM ®

4 "Dolby" and the "Double of Dolby Laboratories.
* Manufactured under licence from Dolby Laboratories.

ELECTRONIC TAPE
PROCESSOR

MODEL
RT-3838H

[ln the interests OI user-safety the set should be restored to its original condition and only parts identical to

those specified be used."

SPECIFICATIONS

Type: 4-track 2-channel stereo Cassette tape
recorder/ player deck with builtin
Dolby noise reduction system

Power source: AC llO/220/240V, 50/60 Hz

Power consumption: 18 Watts

Semiconductors: l-LSI (Large Scale Integrated Circuit)
7~lC (integrated Circuit)
59-Transistor
34Diode
Z-LED (Light Emitting Diode)

Dimensions:
Width. 442 mm (173/8")
Height: 144 mm (Bell/16")
Depth: 357 mm (14-1/16)
Weight: 9 kg (199 lbs)
Tape: Philips standard compact cassette tape

Wow & flutter:
Frequency response
Use of normal tape:
30 ~ 13,000 Hz
under D|N45 500
Use of FeCr tape:
30 ~ 16,000 Hz
under D|N45 500

0,15% (DIN45 500)

Use of MAXELL UDXLII tape:

30 ~ 15,000 Hz

under DIN45 500

Better than 50 dB, for normal tape
(weighted) at LlNE~IN, without Dolby
Noise Reduction.

Dolby NR effect: 10 dB lat over Ski-l2)
Input sensitivity and input impedance:

S/N ratio

Microphone: 0.2 mV
l6.8l< ohms)
Line 50 mV (54k ohms)

Record/playback socket
O.lmV/l< ohm
Output level and loaded impedance:

Headphones: 89 mV
(0' VU), 8ohm
Line: 775 mV ('OVU)
50k ohms

Record/playback socket.
775 mV (0 V0)

SHARP CORPORATION OSAKA, JAPAN