Specifications & Service Data - Teac A450 Service Manual

1. SPECIFICATIONS & SERVICE DATA
1
Equalization
Head Configuration
3
Erase Efficiency
Channel Separation
Crosstalk between
Adjacent Tracks
Total Harmonic Distortion
Electrical
Frequency Response
Signal to Noise Ratio
Pinch Roller Pressure
Reel Torque
Fast Winding Time
End-stop Activate Time
Motor
Bias Frequency
Operating Position
Power Requirements
Outputs
(level and impedance)
Refer to frequency response limits charts on page 18 and 24.
Playback method: 47 dB minimum
Record/Playback method: BIAS/EQ 1: 47 dB minimum
BIAS/EQ 2, 3: 45 dB minimum
With Dolby Noise Reduction used for recording and playback,
S/N ratio is improved by 5 dB at I kHz and 10 dB at frequencies over 5 kHz.
5 dB minimum
30 dB minimum (at I kHz)
40 dB minimum (at 125 Hz)
4-track, 2-channel stereo
Two: Erase and Record/Playback
Cassette tape, C- 0 and C-90 (Philips type)
4.8 cm/s (1-7/8 ips)
Microphones: Min. input level: — 7 dB ±2 dB (10 Kohms or more)
Line: Specified input level: — 5 dB (50 Kohms)
Min. input level: —15 dB +2 dB
DIN*: Min. input level: — 35 dB ±2 dB
DOLBY FM/COPY: -15 dB ±2 dB
Line out: Max. output level: — 3.5 dB ±1 dB (50 Kohms)
Specified output level: — 5 dB
Headphones: Specified output level: — 21 dB ±2 dB (8 ohms)
EQ 1: 3180 s + 70 gs (for CrO 2 tape)
EQ 2: 3180 gs + 70 gs (for FeCr tape)
EQ 3: 3180 gs + 120 gs (for regular Hi-Fi tape)
1/2-track, 1 -channel Erase Head
1 /4-track, 2-channel Record/Playback Head
Hysteresis synchronous outer-rotor motor
100 kHz
Horizontal
11 7V AC, 0 Hz (U.S.A./Canada Models)
100/1 17/220/240V AC, 50/ 0 Hz (General Export Models)
220V AC, 50 Hz (Europe Models)
18 W
9.5 kg (21 lbs) net
SERVICE DATA
Mechanical
Tape Speed Deviation
Wow and Flutter
SPECIFICATIONS
Track System
Heads
Type of Tape
Tape Speed
Inputs
(level and impedance)
3,000 Hz +30 Hz
Playback: 0.07% (WRMS)
Record/Playback: 0.10% (WRMS)
400 g±20g (13.5 ~ 15.0 oz)
Take Up: 40 ~70 g-cm (0. ~ 1.0 oz-inch)
Fast Forward: 100 g-cm (1.4 oz-inch) or more
Rewind: 100 g-cm (1.4 oz-inch) or more
100 seconds for C- 0
4 seconds±2 sec.
BIAS/EQ 1: 2.5% (maximum)
BIAS/EQ 2: 2.5% (maximum)
BIAS/EQ 3: 2.5% (maximum)
NOTE: • Improvements may result in Specifications and Service Data changes.
• Value of " dB " in the Data refer to 0 dB = 0.775V, except where specified. If a Test Set or
VTVM calibrated to 0 dB = IV is to be used, appropriate comprensation should be made.
Power Consumption
Weight
* Pursuant to DIN Standards