LENCO C1102, Service Instruction

Page: 2 / 41

Contents
Electrical Alignment Instructions
Page
-
Technical data
................................................................................ 3
-
Playback
......................................................................................... 4
1. Azimuth Adjustment
2. Tape Speed Adjustment
3. Output Level Adjustment
4. DNL Adjustment
-
Recording
...................................................................................... 4
1. OSC Frequency Adjustment
2. Bias Trap Adjustment
3. Bias Current Adjustment
4. Dolby Nr. Bias Trap Adjustment
5. Input Sensitivity Adjustment
6. Level Meter Adjustment
7. Record Current Adjustment
8. Peak Indicator Level Adjustment
9. ALC Balance Adjustment
-
Electrical Adjustment Procedure
.......................................... 5+6
1. DC F.G. Servo Motor
2. RIP Head (Azimuth)
3. Dolby P.C.B.
4. DNL P.C.B.
5. Power P.C.B.
6. Pre Amp. P.C.B.
Mechanical Alignment Instructions
Page
- Tape Speed................................. 7
- Wow 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 Stop P.C.B. ...................... ..................................................... 24
- DIN/RCA Jack P.C.B. ............... ..................................................... 25
- Power Supply P.C.B. (Bottom View) .............................. 26
- Power Supply P.C.B. (Top View) ................................... 27
- LED P.C.B. ............................... ..................................................... 28
- Peak Level LED P.C.B. ............ ..................................................... 28
- PRE P.C.B. (Bottom View) .............................. 29
- PRE P.C.B. (Top View) ................................... 30
- Dolby P.C.B. (Bottom View) ............................. 31
- Dolby P.C.B. (Top View) ................................... 32
- Push SW P.C.B. (Bottom View) .............................. 33
- Push SW P.C.B. (Top View) ................................... 34
- DNL P.C.B. ............................... ..................................................... 35
- Exploded drawings ................... ............................................... 36+37
- Exploded and Lubrication drawings ......................................... 38+39
Wiring Diagram..........................
40
Electrical Circuit Diagram
......................................... 40