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CONNECTORS ASSIGNMENTS:
CONNECTOR 1701
O0000
00 NOOR
WD
+
REC-L
_REC-R
GNDA
TAPE-L
+12V
TAPE-R
-CMOS
CONNECTOR 1703
1
2
GND M
+MOTOR
CONNECTOR 1706
OO
00000
NOoROND
=
AD2
AD1
+5
GND P
CLK
DATA
STROBE
CONNECTOR 1710
OoO0000
anRwon
=
B R/P HD L+
GNDA
B R/P HD R+
ERASE HEAD
GND A
CONNECTOR 1720
O00000
Onhwn
=
B R/P HD L+
B R/P HD L-
B R/P HD R+
B R/P HD R-
ERASE HEAD
GNDA
CONNECTOR 1730
1
2
3
PCS 101 085
A PBHDL+
GNDA
A PBHD R+
INTERCONNECTION TO AF BOARD
Record input left
Record input right
AF Ground
Playback output left
D.C. supply (+12V) in
Playback output right
Negative d.c. supply (-9V) for CMOS ICs
INTERCONNECTION TO AF BOARD
Motor Ground
D.C. supply (+12V) for tape deck motor & solenoid
INTERCONNECTION TO FRONT BOARD
Deck sensing switches output voltage / Deck
A EOT
Deck sensing switches output voltage / Deck
B EOT
DC supply +5V for ADC network
Control & Oscillator Ground
HEF4094BT shift register Clock line
HEF4094BT shift register Data line
HEF4094BT shift register Strobe line
DECK B HEADS CONNECTON (For ETF6... only)
R/P Head left channel positive
R/P Head return ground
R/P Head right channel positive
Erase Head
Erase Head ground
DECK B HEADS CONNECTON (For ETFS... only)
R/P Head left channel positive
R/P Head left channel negative
R/P Head right channel positive
R/P Head right channel negative
Erase Head
Erase Head ground
DECK A HEAD CONNECTIONS (For Double Deck versions only)
Pb Head left channel positive
Pb Head return ground shield
Pb Head right channel positive
CONNECTOR 1740
O00000
0000
=-OONOORWD
=
0.
REC REW
REC FWD
CrO02
PHOTO
B
SOLB
Vcc
MODE
GND M
H
L
CONNECTOR 1750
O00000
ora
hanh
Ccr02
PHOTO A
SOLA
Vcc
MODE
GND M
CONNECTOR 1760
O0000000
AN
oarhrhwah
=
REC REW
REC FWD
CrO2
PHOTO B
SOL B
Vec
MODE
GND M
CONNEGTOR 1770
oO
1@)
oO
ce)
oO
.e)
1@)
te)
1@)
Oo
1@)
.e)
1@)
AN
ooh
wh
—
REC REW
REC FWD
Cr02B
PHOTO B
SOLB
Vcc
MODE B
GND M
L
H
CrO2A
SOLA
PHOTO A
9-4
DECK B CONTROL INTERFACE (For ETFS... Double Deck only)
Record tab protection status switch (reverse)
[open=on
Record tab protection status switch (forward)
[open=on
Chrome tape detection switch
[open=Cr
Photo sensor output (tape movement indication)
Solenoid supply
Deck / Motor supply
Mode switch (head engagement)
Deck / Motor ground
H pin for motor
L pin for motor
: close=off]
: cClose=off]
: close=Fe]
[open=off: close=engaged]
DECK A CONTROL INTERFAC (For ETF5... Double Deck only)
Chrome tape detection switch
Photo sensor output (tape movement indication)
Solenoid supply
Deck/Motor supply
Mode switch (head engagement)
Deck/Motor ground
[open=Cr
[open=off
DECK B CONTROL INTERFACE (For Single Deck only)
Record tab protection status switch (reverse)
[open=on:
Record tab protection status switch (forward)
[open=on:
Chrome tape detection switch
[open=Cr:
Photo sensor output (tape movement indication)
Solenoid supply
Deck / Motor supply
Mode switch (head engagement)
[open=off:
Deck / Motor ground
DECK A & B CONTROL INTERFACE (For ETF6... only)
Record tab protection status switch (reverse)
[open=on:
Record tab protection status switch (forward)
[open=on:
Chrome tape detection switch deck B
[open=Cr:
Photo sensor output (tape movement indication)
Solenoid supply for deck B
Deck / Motor supply
Mode switch (head engagement)
[open=off:
Deck / Motor ground
L pin for motor
H pin for motor
Chrome tape detection switch deck A
Solenoid supply for deck A
Photo sensor output (tape movement indication)
[open=Cr:
: close=Fe]
: close=engaged]
close=off]
close=off]
close=Fe]
close=engaged]
close=off]
close=off]
close=Fe]
close=engaged]
close=Fe]
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