ETF7 TAPE MODULE
(Dolby Version)
9A-1
9A-1
TABLE OF CONTENTS
Tape Module Wiring & variation table ..................... 9A-1
Block diagram .......................................................... 9A-2
Brief Introduction ..................................................... 9A-3
Connector assignment ............................................. 9A-4
Tape deck electronics .............................................. 9A-5
Tape adjustments .................................................... 9A-6
ETF7 Dolby Board Component layout .................... 9A-7
ETF7 Dolby Board Chip layout ................................ 9A-8
Analog Circuit diagram ............................................ 9A-9
Servo Circuit diagram ............................................ 9A-10
Dolby Circuit diagram ............................................ 9A-11
Exploded views & parts list .................................... 9A-12
Electrical parts list .................................................. 9A-15
REC
FWD
CRO2
REC
REV
MODE
SW
TAPE DECK
MOTOR
TO ETF BOARD
CONNECTOR 1710 (ND) 5P
CONNECTOR 1720 (DB) 6P
TO ETF BOARD
CONNECTOR 1770 (ND) 14P
CONNECTOR 1740 (DB) 14P
TO ETF BOARD
CONNECTOR 1730 (3P)
Tapedeck wiring (Double deck)
+
–
H
L
CRO2
Mechanism B
Mechanism A
DB
=
Dolby B NR
DD
=
Double Deck
FF
=
Non-Autoreverse
FR
=
Autoreverse Deck B
ND
=
Non-Dolby
SD
=
Single Deck
OPTIONS / VARIANTS TABLE
MODULE
ETF7
VARIANT
1
2
3
FEATURES
DB/DD/FR ND/DD/FR ND/DD/FF
Deck configuration
double
double
double
Deck type (Tokyo Pigeon)
CWE
CWE
CWE
Autoreverse
yes (B)
yes (B)
no
Auto Replay
no
no
yes (A+B)
Motor configuration
single
single
single
Auto tape type selection
yes
yes
yes
Dolby type B Noise Reduction
yes
no
no
19 kHz pilot suppression
yes
no
no
Normal / High speed dubbing
yes
yes
no
Cue/Review & Fwd/Rewind
yes
yes
yes
