Teac C-1 Service Manual page 5

SERVICE DATA
Mechanical
Tape Speed Deviation
Tape Speed Drift
Wow and Flutter
Pinch Roller Pressure
Reel Torque
Fast Winding Time
Electrical
Frequency Response
Signal to Noise Ratio
Erase Efficiency
Channel Separation
Crosstalk Between Adjacent Tracks
Total Harmonic Distortion
3,000 Hz +30 Hz
15 Hz
Playback: 0.06% (WRMS)
0.12% (RMS)
Record/Playback: 0.09% (WRMS)
0.15% (RMS)
Take-up: 500g +20 g(16.9 oz. to 18.3 02.)
Supply: 250g +20¢(8.1 0z. to 9.5 02z.)
Take-up: 44 +4 g-cm (0.56 to 0.67 oz-inch)
Supply: 7 to 10 g-cm (0.10 to 0.14 oz-inch)
Fast Forwind/Rewind: 100 to 150 g-cm (1.4 to 2.1 oz-inch)
70 seconds for MTT-501 (C-60)
Refer to frequency response limits charts on page 19 and 23
Playback method: CrO, & FeCr tapes: 51 dB (min.)
NORMAL tape: 47 dB (min.)
Record/Playback method: CrO, & FeCr tapes: 48 dB (min.) (UNWTD)
54 dB (min.) (WTD)
NORMAL tape: 45 dB (min.) (UNWTD)
51 dB (min.) (WTD)
With Dolby Noise Reduction used for recording and playback, S/N
ratio is improved by 5 dB at ] kHz and 10 dB at frequencies over 5 kHz.
65 dB min.
35 dB min. (at 1 kHz)
~ 40 dB min. (at 125 Hz)
2.0% or iess w/3 types of tape
NOTE: e Improvements may result in Specifications and Service Data changes.
e
Value of "dB" in the Data refers to 0 dB = 0.775V, except where specified. If a Test Set or AC
Voltmeter calibrated to 0 dB = 1 V is to be used, appropriate compensation should be made.
:
i