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Alignment Instructions

 

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1. Azimuth Adjustment

 

Connect a scope or VTVM to the right channel PRE-AMP OUTPUT 
jack. Insert a test tape (TEAC MTT-114, 115) into the unit. Adjust the 
Azimuth adjusting screw for maximum output into the right channel. 
(See figure 1 R/P HEAD.)

 

2. Tape Speed Adjustment

 

Connect  scope,  VTVM  and  FREQUENCY  COUNTER  to  the  right 
channel  PRE-AMP  OUTPUT  jack.  Insert  a  Test  Tape  (MTT-111  3 
kHz) into the unit. Adjust the tape speed adjusting screw for a  3 kHz 
value in the frequency counter. (See fig. 1 DC F.G. Servo Motor.) 

3. Output Level Adjustment 

Connect scope and VTVM to the TP-2 and Ground (L-ch and R-ch). 

Insert a test tape MTT-150 (Dolby level calibration tape 200 nwb/m) 
into the unit. Adjust the P 104 (left) and P 204 (right) for a 580 mV 
reading. 

4. DNL adjustment

 

Connect a scope to the PRE-AMP OUTPUT jack. Set the unit for a 
PLAY  function,  then  depress  the  PAUSE  button,  DNL  switch,  ON. 
Adjust  the  VR  501  (L-ch),  VR  601  (R-ch)  so  that  the  level  of  high 
frequency  noise  is  at  a  minimum  on  the  scope.  (See  fig.  1,  DNL 
P.C.B.)

 

Recording

 

1. OSC Frequency Adjustment

 

Connect  the  scope  and  frequency  counter  to  the  terminals  of  the 
erase head. Set the unit for recording. Adjust L 1 so that there is an 
OSC frequency value of 105 kHz on the frequency counter. (See fig. 
1 Power P.C.B.)

 

2. Bias Trap Adjustment

 

Connect the scope and VTVM to the TP-3 and Ground. (See fig. 2.)

 

Set the unit for recording. Adjust the L 104 (L-ch) and L 204 (R-ch) so 
that the level on the VTVT is at a minimum. (See fig. 2.)

 

3. Bias Current Adjustment AF 

Generator 
333 Hz 

1 kHz 
0 dB - 1 V 
Attenuator -
95 dB Unit 
Mic. Input L 

V.T.V.M. 
Scope 

Connection should be made as above. Set the unit for recording. For 
Fe 203, adjust C 133 (L-ch), C 233 (R-ch) to flat level at between 333 
Hz  and  10  kHz.  For  Cr02,  adjust  C  134  (L-ch),  C  234  (R-ch)  to  flat 
level at between 333 Hz and 12,5 kHz. (See figure 2.) 

4. Dolby NR Bias Trap Adjustment 

Connect the VTVM and scope to the test point pin on the Dolby 
P.C.B. (See figure 1). 

Set  the  unit  for  recording.  Dolby  NR  switch  "ON"  position.  Adjust  L 
303 (L-ch), L 403 (R-ch) for the minimum indication on the VTVM.

 

5. Input Sensitivity Adjustment AF 

Generator 
333 Hz 
0 dB - 1 V 
Attenuator 
-70 dB Unit 
DIN Input 


TP-2 
V.T.V.M. 
Scope 

Connection  should  be  made  as  above.  Set  the  unit  for  recording. 
Record level controls (P 103, P 203) set at maximum. Adjust P 102 
(L-ch), P 202 (R-ch) for 580 mV reading at TP 2 (L-ch, R-ch). (See 
figure 2.) 

6. Level Meter Adjustment

 

Connection  should  be  made  as  for  ADJUSTMENT  5.  When 
ADJUSTMENT  5  has  been  completed  (580  mV  rading  at  TP  a), 
adjust P 107 (L-ch), P 207 (R-ch) for +3 VU reading on level meters 
(L-ch, R-ch). (See figure 2.)

 

7. Record Current Adjustment 

Connection  should  be  made  as  in  ADJUSTMENT  5.  Feed  -70  dB 
(333 Hz) into the DIN input. Set the record level controls (103/203) to 
maximum. 
Make  a  recording  (use  blank  tape)  then  playback  what  has  been 
recorded and adjust P 105 (L-ch), P 205 (R-ch) for Fe 203 Tape, P 
106 (L-ch), P 206 (R-ch) for Cr02 Tape so that the output at TP 2 has 
a value of 580 mV. (See figure 2.) 

8. Peak Indicator Level Adjustment 

Set the unit for recording. Feed -68.5 dB (1 kHz) into the DIN input 
Left and Right channels. 

Adjust P 2 until the peak level indicator lights up. (See fig. 2). 

AF Generator 
1 kHz 
0 dB = 1 V 
Attenuator 
-68.5 dB (1 kHz) 
DIN Input 


Unit 

9. ALC Balance Adjustment 

Disconnect  R  1  (or  cut  the  foil  pattern)  so  that  the  Bias  OSC  is 
stopped. Set the ALC switch to the "ON" position and keep the unit 
set at recording. Feed -50 dB (1 kHz) signal into the DIN input Left 
and Right channels. Adjust P 1 so that the value of the level meter on 
Left  and  Right  channel  will  be  the  same.  (See  figure  2  ALC 
BALANCE). 

AF Generator 
1 kHz 
0 dB = 1 V 
Attenuator -50 dB 
(1 kHz) Unit 
DIN Input 

Summary of Contents for C1102

Page 1: ......

Page 2: ...ow and Flutter 7 Mechanical Adjustment 8 9 1 Pinch Roller Pressure Measurement 2 Azimuth Head Location Adjustment 3 Tape Speed Adjustment Location Mechanical Parts List 10 14 Take up Torque 7 Fast Forward and Rewind Torque 7 Pinch Roller Pressure 7 Tape Speed Wow and Flutter 7 Azimuth Head Alignment 7 Electrical Parts List 15 21 Drawings Muting SW P C B 22 Reed SW P C B 22 Mic Jack P C B 23 Auto S...

Page 3: ...Line input PHONO plug Sensitivity 33 mV impedance 560 kOhms Max input voltage 3 3 V 4 Phono Input DIN DIN Plug connection 3 5 Sensitivity 200 mV impedance 3 3 mOhms Outputs for Dolby level 1 DIN plug pin 3 5 1000 mV impedance 15 kOhms 2 LINE output PHONO 1000 mV impedance 15 kOhms 3 Headphone output 200 mV impedance 8 kOhms Harmonic distortion 333 Hz for 0 dB VU Standard cassette 2 0 Ferri chrome ...

Page 4: ...and 10 kHz For Cr02 adjust C 134 L ch C 234 R ch to flat level at between 333 Hz and 12 5 kHz See figure 2 4 Dolby NR Bias Trap Adjustment Connect the VTVM and scope to the test point pin on the Dolby P C B See figure 1 Set the unit for recording Dolby NR switch ON position Adjust L 303 L ch L 403 R ch for the minimum indication on the VTVM 5 Input Sensitivity Adjustment AF Generator 333 Hz 0 dB 1...

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Page 7: ...sting nut B 1 87 with 1 mm vertical clearance Check whether the pinch roller is vertical to the capstan Tape Speed WOW and Flutter Note Before commencing the following alignments make sure that all parts in the tape path particularly the capstan pinch roller and head are cleaned with pure alcohol Head Azimuth Alignment 1 Connect the AC vacuum tube voltage meter to both chan nels of the Line out 2 ...

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Page 10: ...7 Decoration Plate Azimuth Hole 21W7473 1 A 18 Plate Rating 220 V 50 Hz 23M7885 1 A 22 Plate Rating 240 V 50 Hz 23M7890 1 B 1 1 Chassis Assembly 23S7191X 1 Consists of following B 1 1 Chassis Mechanism 23S7191 1 B 1 17 Metal Reel Shaft 22R7051 2 B 1 56 Stay Auto Stop PC Board 25W8271 1 B 1 67 Stay Flywheel Holder 25W7723 1 B 1 71 Shaft Pause Lever B 25W7718 1 B 1 74 Stay Basic 25W8172 2 B 1 83 Sha...

Page 11: ...7741 1 B 1 21 Rubber Brake 21W7201 2 B 1 22 Cushion Door 21W7199 1 B 1 23 Cushion Motor 21W7236 3 B 1 25 Holder Motor 23X7262 1 B 1 26 Bracket A Flywheel 23W8783 1 B 1 27 Bracket B Flywheel 23W8765 1 B 1 28 Arm Assembly Back Tension 23W8778X 1 Consists of following B 1 28 Arm Back Tension 23W8778 1 B 1 91 Felt Back Tension 24W7360 1 B 1 29 Arm A Assembly Fast Forward and Rewind 23W8794X 1 Consists...

Page 12: ...g Pause Lever B 26W7249 1 B 1 58 Spring Record Prevention Plate 26W7246 1 B 1 59 Spring Fast Forward 26W7250 1 B 1 60 Spring Rewind 26W7251 1 B 1 61 Spring Pinch Roller 26W7244 1 B 1 62 Spring A Push Shaft 26W7254 1 B 1 63 Spring Take up Pulley Arm 26W7245 1 B 1 64 Spring B Push Shaft 26W7253 1 B 1 65 Spring Door 26W7248 1 B 1 70 Shaft Record Prevention Plate 25W7707 1 B 1 73 Shaft Tape Changing A...

Page 13: ...8 1 B 2 49 Spacer 25W0744 1 B 2 4 Bracket Pin Jack 23X7301 1 B 2 5 Bracket Transformer 23X7302 1 B 2 6 Holder Microphone Jack 23X7290 1 B 2 7 Bracket Microphone Jack 23X7291 1 B 2 8 Holder Assembly VU Meter Box 23X7292X 2 Consists of following B 2 8 Holder VU Meter Box 23X7292 2 B 2 42 Pin VU Meter Box 25W7777 2 B 2 9 Plate Assembly VU Meter 23X7293X 1 Consists of following B 2 9 Plate VU Meter 23...

Page 14: ...crew M 3 X 6 FPM3306 1 L 1 15 Pan Head SEMS Screw M 3 X 6 CPM3306 4 L 1 16 Pan Head W SEMS Screw M 3 X 12 FPM3312 3 Steel Ball Ø 2 5 80S0025 2 L 1 18 Steel Ball Ø 3 80S0030 3 L 1 19 Nut M 2 NHM0020 3 L 1 20 Nut M 2 6 NHM0026 4 L 1 21 Nut M 3 NHM0030 1 L 1 22 Flat Washer M 2 0 4 t X Ø 5 WP82054 2 L 1 23 Flat Washer M 2 6 0 5 t X Ø 7 5 WP89075 3 L 1 24 Flat Washer M 3 5 0 5 t X Ø 7 WP8C075 9 L 1 25 ...

Page 15: ...nector Socket 5 P 3 5 mm 172M870 172M590 1 Connector Socket 3 P 3 5 mm 172M588 172M868 13 Connector Socket 5 P 2 5 mm 172M862 1 P 103 203 Slide Resistor 20 K D 139N724 2 DIN RCA Jack Board 1720800 1 Terminal Board 1720813 1 DIN RCA Jack P C B 1611581 1 MIC Jack P C B 1611266 1 Pre Amplifier P C B 1611263B 1 Dolby P C B 1611190 1 DNL P C B 1611020 1 Auto Stop P C B 1611585 1 Push Switch P C B 16115...

Page 16: ...C1327U 1 T 6 7 Transistor 2SC1815GR 2 T 10 201 Transistor 2SC1000BL 4 102 202 2SC1681BL T 103 203 Transistor 2SC1327T 6 104 204 2SC732BL 105 205 T 106 206 Transistor 2SC1815GR 4 107 207 T 108 208 Transistor 2SC1327U 2 T 109 209 Transistor 2SC828S 2 T 110 210 Transistor 2SA564S 2 T 301 401 Transistor 2SC1327T 6 302 402 2SC732BL 303 403 P 1 Semi fixed Resistor 8 mm 1 K 138N026 1 P 2 Semi fixed Resis...

Page 17: ... 134 234 Carbon Resistor 3 3 K 1337332 2 R 135 235 Carbon Resistor 330 K 1337334 2 R 136 236 Carbon Resistor 47 K 1337473 2 R 137 237 Carbon Resistor 4 7 K 1337472 2 R 138 238 Carbon Resistor 1 K 1337102 2 R 139 239 Carbon Resistor 100 K 1337104 2 R 141 241 Carbon Resistor 1 8 K 1337182 2 R 142 242 Carbon Resistor 560 1337561 4 143 243 R 144 244 Carbon Resistor 12 K 1337123 2 R 145 245 Carbon Resi...

Page 18: ...0 µ 16 1203106 2 C 151 251 Electrolytic Capacitor 3 3 µ 25 1204335 2 C 302 402 Ceramic Capacitor 60 p 12D3600 2 C 306 406 Electrolytic Capacitor 3 3 µ 25 1204335 2 C 307 407 Electrolytic Capacitor 10 µ 16 1203106 2 C 20 Electrolytic Capacitor 10 µ 16 1203106 2 C 30 Electrolytic Capacitor 220 µ 6 3 1201227 2 C 31 Electrolytic Capacitor 10 µ 16 1203106 2 Dolby P C B Assembly 1611190X Dolby P C B 161...

Page 19: ...on Film Capacitor 0 0047 µ 1220125 2 C 314 414 Electrolytic Capacitor 10 µ 16 1203106 2 C 315 415 Myler Capacitor 0 1 µ K 1250104 2 C 316 416 Electrolytic Capacitor 47 µ 16 1203476 2 C 318 418 Myler Capacitor 0 1 µ K 1250104 2 C 319 419 Electrolytic Capacitor 10 µ 16 1203106 4 320 420 C 321 421 Myler Capacitor 0 01 µ K 1250103 2 C 322 422 Myler Capacitor 0 1 µ J 1254104 2 C 323 423 Myler Capacitor...

Page 20: ... 603 Carbon Resistor 680 1337681 2 R 504 604 Carbon Resistor 1 K 1337102 2 R 505 605 Carbon Resistor 680 1337681 2 R 506 606 Carbon Resistor 8 2 K 1337822 2 R 507 607 Carbon Resistor 1 K 1337102 2 R 508 608 Carbon Resistor 330 K 1337334 2 R 509 609 Carbon Resistor 100 K 1337104 2 R 510 610 Carbon Resistor 1 8 K 1337182 2 R 511 611 Carbon Resistor 330 K 1337334 2 R 512 612 Carbon Resistor 22 K 1337...

Page 21: ...1 B4B 1 2 ZD 1 Zener Diode BZ 240 1 R 1 Metal Oxide Resistor 560 1 W 1334561 1 R 14 Carbon Resistor 220 1337221 1 R 15 Carbon Resistor 820 1337821 1 R 16 Metal Oxide Resistor 10 1 W 1344100 1 C 1 Styrol Capacitor 1000 p J 1231102 1 C 2 Electrolytic Capacitor 100 µ 25 1204107 1 C 12 Electrolytic Capacitor 1000 µ 16 1203108 1 C 13 Electrolytic Capacitor 1000 µ 35 1200108 1 C 14 Electrolytic Capacito...

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