Philips FW-C780/22/37 Servise Manual page 59

9A-1
ETF7 TAPE MODULE
(Dolby Version)
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
Tapedeck wiring (Double deck)
TO ETF BOARD
CONNECTOR 1770 (ND) 14P
CONNECTOR 1740 (DB) 14P
REC
REC
REV
FWD
CRO2
MODE
SW
TAPE DECK
MOTOR
Mechanism B
TO ETF BOARD
CONNECTOR 1710 (ND) 5P
CONNECTOR 1720 (DB) 6P
OPTIONS / VARIANTS TABLE
MODULE ETF7
VARIANT 1 2
FEATURES DB/DD/FR ND/DD/FR ND/DD/FF
Deck configuration double double
Deck type (Tokyo Pigeon) CWE CWE
Autoreverse yes (B) yes (B)
Auto Replay no no
Motor configuration single single
Auto tape type selection yes yes
Dolby type B Noise Reduction yes no
19 kHz pilot suppression yes no
Normal / High speed dubbing yes yes
Cue/Review & Fwd/Rewind yes yes
DB = Dolby B NR
DD = Double Deck
FF = Non-Autoreverse
FR = Autoreverse Deck B
ND = Non-Dolby
SD = Single Deck
9A-1
CRO2
TO ETF BOARD
CONNECTOR 1730 (3P)
3
double
CWE
no
yes (A+B)
single
yes
no
no
no
yes
Mechanism A