ETF8 TAPE MODULE
9-1
9-1
CONNECTORS ASSIGNMENTS:
CONNECTOR 1701
INTERCONNECTION TO AF BOARD
1
REC-L
Record input left
2
REC-R
Record input right
3
GND A
AF Ground
4
TAPE-L
Playback output left
5
+12V
D.C. supply (+12V) for AF electronics
6
TAPE-R
Playback output right
7
-CMOS
Negative d.c. supply (-9V) for controlling JFET J111
CONNECTOR 1703
INTERCONNECTION TO AF BOARD
1
GND M
Motor Ground
2
+MOTOR
D.C. supply (+12V) for tape deck motor & solenoid
CONNECTOR 1706
INTERCONNECTION TO FRONT BOARD
1
CR_IN
Deck sensing Chrome Tape
2
AD1
Deck sensing switches output voltage / Deck EOT
3
+5V
DC supply (+5V) for deck status ADC network (ref to microprocessor’s supply)
4
GND _P
Control & Oscillator Ground
5
CLK
HEF4094BT shift register Clock line
6
DATA
HEF4094BT shift register Data line
7
STROBE
HEF4094BT shift register Strobe line
CONNECTOR 1710
TAPE HEAD CONNECTIONS
1
GND A
R/P Head left channel positive
2
ERASE HEAD
Pb Head return ground shield
3
R/P HD Rch
R/P Head right channel positive
4
Common
Erase Head
5
R/P HD Lch
Erase Head ground
CONNECTOR 1760
DECK CONTROL INTERFACE
1
Vcc 12V
Deck / Motor supply
2
PHOTO
Photo sensor output (tape movement indication)
3
GND_M
Deck / Motor ground
4
MODE
Mode switch (head engagement)
5
Sol_supply
Solenoid supply
6
CR_IN
Chrome tape detection switch
7
REC FWD
Record tab protection status switch (forward)
8
REC REW
Record tab protection status switch (reverse)
TABLE OF CONTENTS
Connector assignment ........................................................ 9-1
Tape Module Wiring ............................................................. 9-2
Tape Mechanism electronics ............................................... 9-2
Tape adjustment / Check Table ........................................... 9-3
HEF4094BT Functional Block & Application Logic Table ... 9-3
ETF8 Board layouts - Components & Chips ....................... 9-4
ETF8 Circuit diagram .......................................................... 9-5
Exploded Views & mechanical parts list ............................. 9-6
Electrical parts list ............................................................... 9-8
Содержание MCM22
Страница 55: ...10 5 10 5 BLOCK DIAGRAM Universal Loader ...
Страница 63: ...LAYOUT DIAGRAM TOP VIEW FOR ORIENTATION ONLY 10 13 10 13 ...
Страница 64: ...LAYOUT DIAGRAM BOTTOM VIEW FOR ORIENTATION ONLY 10 14 10 14 ...
Страница 75: ...MCM7 Exploded View_3139 119 37681_dd wk0407 1105A 1105B 1105C 1105D 12 1 12 1 SET MECHANICAL EXPLODED VIEW ...