Sony TC-755A Bedienungsanleitung Seite 13

Note: Do not use ordinary cellophane tape as it tends to spoil
recording tapes. Also avoid using magnetized scissors or razor
blades. Magnetized instruments will cause a "click" or "pop" at
the spliced portion.
Take care not to unnecessarily touch the tape. Even unvisible
traces of grease and sweat from your fingers will hinder a good
sticking.
TROUBLE CHECKS
The following chart will help correct any trouble which could occur
with the recorder. Ifthe trcuble persists after you have made these
checks, consult your Sony dealer or Sony Service Station.
The » button does not lock.
@ Thread the tape without slack and set the tension arms in vertical
position.
Tape does not move when depressing the function button.
@Check PAUSE lever setting.
No sound during playback
@Ensure that the REC TIMER LOCK lever is in the left position.
@Set the MONITOR selectors at TAPE.
eCheck amplifier input setting.
@Check amplifier volume control.
@Check PB LEVEL control setting.
Unclear or distorted recording or excessive wow and flutter
@Clean heads and tape path.
@Check if the reels are warped.
Severe hum or noise
@ Use shielded connecting cables.
@Ensure that cables are not near transformers, generators or ac
power cord.
Too low microphone sound
eCheck microphone impedance.
@Set the MIC ATT switch at "0".
Oscillation occurs from the connected speaker when trying to
record
@The input selector on the amplifier should be set according to
the source being recorded.
If the amplifier input selector is set at AUX when recorder LINE
OUT jacks and the amplifier AUX input jacks are connected,
oscillation may occur.
@Keep the microphone away from the speaker or reduce the vol-
ume of the amplifier.
PRINCIPAL FEATURES
@An ac servo-controlled capstan drive motor
@ Three heads and three motors
@Tape bias and equalization selectors to obtain the maximum
characteristics according to the type of tapes: newly-issued Sony
Ferri-Chrome Tape, Sony SLH tape and regular tape
@Timer-activated recording and playback
@FET amplifier directly coupled to the playback head
@Closed-loop/dual capstan tape drive
@Logic-controtled function buttons
@ Microphone attenuation switch for excessively high sound levels
@High performance F & F (Ferrite and Ferrite) heads
SYM PHASE Emblem
The designation "SYM PHASE" symbolizes the parallel head gap
of the F & F heads, which prevents phase shifts during recording
or reproduction of orginal souce materials.
SPECIFICATIONS
Power requirements 110, 127, 220 or 240 V ac (adjustable)
50/60 Hz
Power consumption 110 W
Semiconductors 11C, 2 FETs, 56 transistors
40 diodes
7 1/2 ips (19 cm/s), 3 3/4 ips (9.5 cm/s)
6 hours total at 3 3/4 ips, stereo recording
with 1,100 m tape (10 1/2-inch reel)
2 min. 30sec. with 740 m tape
(10 1/9-inch reel)
Tape speeds
Recording time
Fast winding time
Reels 10 1/2 inches or smaller
Track system 4-track 2-channel stereo
Heads Record head 1, playback head 1
erase head 1
Motors Ac servo-controlled capstan motor . . 1
8-pole induction reel motors...... 2
Bias frequency 160 kHz
Equalization NAB standard
Signal-to-noise ratio 58 dB with Sony Ferri-Chrome Tape
Total harmonic distortion
0.8%
With Sony Ferri-Chrome Tape
30-27,000 Hz at 7 1/2 ips
30-18,000 Hz at 3 3/4 ips
With SLH tape
30-25,000 Hz at 71/2 ips
30-16,000 Hz at 3 3/4 ips
With regular tape
30-20,000 Hz at 7 1/2 ips
30-13,000 Hz at 3 3/4 ips
+0.07% at 71/2 ips, +0.10% at 3 3/q ips
Frequency response
Wow and flutter
Inputs Microphone inputs ......... 2
sensitivity 0.2 mV (— 72 dB)
for low impedance microphone
Line inputs .............. 2
sensitivity 0.06 V (— 22 dB)
input impedance 100 kohms
Outputs Line outputs ............. 2
output level 0.435 V (— 5 dB) at
load impedance of 100 kohms, with
PB LEVEL controls set to detent position
with PB LEVEL controls set to MAX
0.775 V (0 dB)
Suitable load impedance higher than
10 kohms
Headphone output.......... 1
suitable load impedance 8 ohms
Record/playback (DIN) connector
Input impedance less than 10 kohms
Output impedance less than 10 kohms
Dimensions Approx. 17 1/g x 17 3/4 x 8 3/4 inches
(w/h/d)
(Approx. 435 x 451 x 221 mm)
Including projecting parts and controls
Weight Approx. 52 lb 15 oz (24 kg)
Supplied accessories Reel adaptor RAD-11. ,2
10 1/2-inch reel ..... 1
Connecting cord... .2
Head cleaning tip. ...1set
Design and specifications are subject to change without notice,
@For the customer in Europe
The TC-755A equalizer is adjusted to NAB standards. If you want
CCIR standard equalization, consult your nearest Sony dealer.
13