Maintenance; Specifications; Troubleshooting - Teac W-850R Owner's Manual

Double auto reverse cassette deck
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MAINTENANCE
The heads and tape path should be cleaned and
demagnetized periodically.
Cleaning Tape Path
© Apply head cleaning fluid* to a cotton bud or soft
cloth, and lightly rub the heads, capstan and all
metal parts in the tape path.
@ Also clean the pinch roller using rubber cleaning
fluid*.
* Both
are available
in TEAC
Tape
Recorder
Cleaning Kits HC-2 and RC-2 in the U.S.A. or TZ-
261 in other areas.
Pinch Roller
Capstan
Erase Head
Record/Play Head
Demagnetizing Heads
Be sure that the power is off. then demagnetize the
heads using a TEAC E-3 demagnetizer. For details of
its use, read its instructions.
TROUBLESHOOTING
Basic troubleshooting of a cassette tape deck is
similar to troubleshooting
any other electrical
or
electronic
equipment.
Always
check
the
most
obvious possible causes first. To give you a few
ideas of what to look for, check the following:
© No power: Is the power cord connected?
© No audio output: Have all connections been made
correctly?
e@ Low
sound
quality:
Are
the
heads
dirty or
magnetized? Are you using good quality tape?
Has the correct NR System been selected?
@ Impossible to enter the record mode: Are the
record protection tabs of the cassette in place?
@ Impossible to enter the record mode: Are the
record protection tabs of the cassette in place?
© Impossible to record from the LINE IN terminals: Is
a microphone connected?
SPECIFICATIONS
Track System: 4-track, 2-channel stereo
Heads:
4; Deck |; 1 Erase and 1 Record/
Playback (rotating)
Deck Il; 1 Erase and 1 Record/
Playback (rotating)
Type of Tape: Cassette tape C-60 and C-90
(Philips type)
Tape Speeds: 4.76 cm/sec (1-7/8 ips)
9.5 cm/sec (3-3/4 ips; in Hi-Speed Dub)
Motors: 2 DC Servo motors (1 ea. Deck)
Wow and Flutter (WRMS): 0.06%
Frequency Response (Overall, -20 dB):
25 — 19,000 Hz, Metal tape
25 — 18,000 Hz, CrO2 tape
25 — 17,000 Hz, Normal tape
Signal-to-Noise Ratio (Overall):
59 dB (NR off, 3% THD Level, Weighted)
69 dB (Dolby B NR on, over 5 kHz)
79 dB (Dolby C NR on, over 1 kHz)
Fast Winding Time: Approximately
110 seconds for
C-60
Inputs: Line: 97 mV, 50k ohms
Mic: 0.38 mV, 200 ohms
Outputs: Line: 0.52 V for load impedance of 50k
ohms or more
Headphones: 1 mW/8 ohms
Power Requirements:
120/230 V AC, 50/60 Hz
(General Export Model)
120 V AC, 60 Hz (U.S.A./Canada Model)
230 V AC, 50 Hz (Europe/UK Model)
240 V AC, 50 Hz (Australia Model)
Power Consumption : 15 W
Dimensions (W x H x D):
435 x 144 x 284mm
(17-1/8" x 5-11/16" x 11-3/16")
Weight (net): 4.8 kg (10-9/16 Ibs.)
Standard Accessories:
Input-output connection
cords
© Specifications were determined using metal tape
except as noted.
© Improvements may result in specification or
feature changing without notice.

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