Studer a 820 mch 1995 schematic

Page 1

STUDER A820 MCH MKII

Up-date to the service manual Studer A820 MCH

UP-DATE Tape Deck Section 6

Power Supply ................ 1.820.353.82
Mains Soft Start Board .. 1.820.830.84
Stabilizer : 15V / + 24V ..... 1.820.873.82
MP-Unit Tape Deck Control MCH .. 1.820.781.31

1.820.773.83
1.820.771.84
1.820.822.81
1.820.869.81

Tape Lifter Control .....
Motor Tacho ................
Spooling Motor Control
Power Fail Sense Board

Capstan Control Unit 1.820.764.28

Capstan Motor Drive Amplifier PCB. .820.774.26/1.820.774.27

Tacho Sensor Electronics PCB ............................... 1.021 .695.86
UP-DATE Master Section 7

MP-Unit Master MCH ............ 1.820.784.25

1.820.738.85
1.820.768.83
1.820.768.85

Parallel Remote interface .....
Tape Deck Display Driver PCB
Tape Deck Display Driver PCB

UP-DATE Audio Section 8

1.820.782.26

1.820.718.83
1.820.723 l Page 8/27
1.820.717] Page 8/39
1.820.703.81
1.820.814.81
1.820.808.83
1.820.821.81
1.820.783.27
1.820.817.81
1.820.707.81

MP-Unit Audio Control ......
Communications Controller

Block Diagram Multichannel Bus Driver.
Block Diagram Bus Converter
Basis Board Audio .
Line Amplifier with Trafo ..
Reproduce Preamplifier 80H ..
Time Code Read Unit ........
MP-Unit VU Panel MCH.
Master Keyboard Audio
Audio Alignment Key Board

UP-DATE Accessories Section 9

1.328.250.81
1,328,251 .81

Tape Deck Remote Control Cabinet (Parallel)
- Tape Deck Remote Control PCB .......................

1.328.255.81
1.328.257.81

Tape Deck Remote Control Module (Parallel) ..
- Connector Board ........................

1.328.253.00
1.328.290.00
1.810.762.83

Varispeed for Remote Control Only .....
Varispeed Control Module
- Varispeed Control PCB .....

1.328.275.00
1.328.276.21

Remote Timer (RS232) ......
- CPU Board ......................

EDITION 07/09/95

Page 2

STUDER A820 MCH MKII

..1.328.270.00
..1.328.213.81
1132827224

Remote Timerl Lap Mode Display
- Stabilizer PCB ........
- Timer Driver PCB

Remote Control Cabinet (Serial) ..1.328.210.81
Remote Control Module (Serial). ..1.328.220.81

COnkiII-nw DfD 1 009 01.) Q1
Uu ...............................

7 vluullll-vl I CAN... .VN.

- Remote Control Driver PCB. 1.328.211.25
- Remote Control Display PCB 1,328.212.81
Autolocator Module. .. 1.328.230.82
Autolocator Cabinet .. 1.328.240.82

..1,328.213.81
..... 182823382

- Stabilizer Board
- Pushbutton Board...

Audio Remote Control 8CH .....
Audio Remote Control 24CH
- MP-Unit VU Panel ..................

.. 1.328.501.00/1.328.536.00 / Page 9/65
1.328.503.00/1.328.537.00 / Page 9/65
............................................ 1.820.783.27

Parallel Remote Channel Control Interface .. ........ 1.328.500.00
- Basis Board VU-Panel
DC Connverter 5,6V ......

MP-Unit Audio Remote |F....

- Audio Parallel Remote IF .V ..... 1.328.506.00
- Connector Pre-Wired ........ ,.1.328,507.00
- KB Audio Remote Par. 8CH + M ..... 132850800
- KB Audio Remote Par. BCH .................................................................... 132850900
UP-DATE Spare Parts Section 10
Labels Remote
Prepared and edited by: Copyright by STUDER Professional Audio AG
STUDER Professional Audio AG Printed in Switzerland
Technical Documentation Order no, 10273830 (Ed. 0995)
Althardstrasse 30
CH-8105 Regensdort - Switzerland We reserve the right to make alterations

STUDER is a registered trade mark of STUDER Professional Audio AG, Regensdorf

EDITION: 07/09/95