Teac C-1 - Section 1; Table of Contents

TABLE OF CONTENTS
1. Parts loGation. 2. s26 vacaulek. dad ace odie lek SES 3 6-2 DC voltage (+15 V) adjustment ............ 18
6-3. Playback performance ...............000. 19
2 Specifications and service data .............. 4 6-3-1 Record/playback head azimuth adjustment . 19
6-3-2 Specified output level setting .......... 19
3: Test equipment coach ec eb be ee es 6 6-3-3. Frequency response — Playback—....... 19
3-1 Ordinary tools and equipments ............ 6 6-3-4 — Signal to noise ratio — Playback ~....... 20
3-2 Special tools and jigs... .......-..02.0-. 6 6-3-5 Headphone output level checks ......... 20
3-3. TEAC testtapes.............-..-02004. 6 6-4 Monitor performance ..............00-. 20
6-4-1 Minimum input level checks ........... 20
4 Illustrated disassembly procedures ............ 8 6-4-2 Specified RECORD control setting ...... 20
4-1 Caseand front panel ................0.0. 8 6-5 PEAK LEVEL meter adjustments .......... 21
4-2 Tape transport chassis .............-0.-4. 8 6-5-1 PEAK LEVEL meter calibration
4-3 Cassetteholder........ 0.0.00. 00 0.00008. 9 —Record—.... 2... .. eee eee eee 21
4-4 Reel tablesand brakes .................. 9 6-5-2. PEAK LEVEL meter calibration
4-5 Headsand pinchrollers ................-.- 9 — Playback -—.. 2.0... ce ee eee 21
4-6 Capstanmotor .......... 0.000000. 0 eee 10 6-6 Recording performance .............-0-. 21 a
4-7 Capstan ass’ys (including lubrication) ........ 10 6-6-1 Bias trap adjustment ................, 21
4-8 Reelmotors................ 000000005 1] 6-6-2 Record bias setting adjustment ......... 22
6-6-3 Record level setting. .............-.. 22
5 Mechanical checks and adjustments ........... 11 6-64 Distortion checks ...............-4. 22
5-1 Cassette holder timing adjustment .......... 11 6-6-5 Frequency response — Overall — ........ 23
5-2 Head solenoid position adjustment.......... 12 6-6-6 Signal to noise ratio — Overall -~ ........ 23
5-3. Pinch roller solenoid position adjustment ..... 12 6-6-7 Erase efficiency ..............0.08. 24
5-4 Capstan motor switch position adjustment .... 13 6-6-8 Channel separation ..............0.. 24
5-5 Record safety switch position adjustment ..... 13 6-6-9 Adjacent track crosstalk measurement . 24
5-6 Brake solenoid position adjustment ......... 14 6-6-10 REC MUTE function check ........... 25
5-7 Capstan assembly thrust adjustment ......... 14 6-6-11 Dolby NReffect measurement ......... 25
5-8 Pinch roller position balance. ............. 15 6-7 Adjustment and test point locations......... 26
5-9 Pinch roller pressure 2.2... 0... eee eee 16
5-10 Adjusting height of pinch roller guides and 7. Block diagram: «010 accep ee daa ew eee 27
REC & PLAY head... 2.0... ....0.0.. 16
5-11 Tape path alignment ................-0. 17 8 -Levelidiagram 024 2206s oa. alee eds 28
5-12 Tape speed adjustment ................. 17
5-13 Reel motor torque adjustment ............ 18 9 Voltage and frequency setting............... 29
: 9-1 Voltage selector setting procedure .......... 29
6 Electrical checks and adjustments ............ 18 9-2 AC power line frequency adaptation ........ 29
6-1 General preliminary information ........... 18
6-1-1 General notice .. 2.2... ee ee eee 18
6-1-2. Preparations ................-00-- 18
* Noise reduction circuit made under license from Dolby ]
Laboratories. The word “Dolby”? and the Double-D
symbol are trademarks of Dolby Laboratories.