Philips FW-C28 - ETF7 Tape Module

ETF7 TAPE MODULE
(Non-Dolby Version)
9-1
9-1
PCS 103 373
TABLE OF CONTENTS
Tape Module Wiring & variation table ....................... 9-1
Block diagram ............................................................ 9-2
Brief Introduction ....................................................... 9-3
Connector assignment............................................... 9-4
Tape deck electronics & Tape adjustments ............... 9-5
ETF7 Non-Dolby board layouts ................................. 9-6
Analog Circuit diagram .............................................. 9-7
Servo Circuit diagram ................................................ 9-8
Exploded views & parts list........................................ 9-9
Electrical parts list.................................................... 9-13
DB = Dolby B NR
DD = Double Deck
FF = Non-Autoreverse
FR = Autoreverse Deck B
ND = Non-Dolby
SD = Single Deck
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
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
ND/DD/FR ND/DD/FF
2701 , 2702 150pF 270pF
2703 , 2704 100pF 220pF
2717 , 2718 10nF 15nF
2727 , 2728 470pF 1nF
3616 10k 1k
3618 6k8 -
3620 10k trimmer -
3622 - 10k trimmer
3672 4k7 -
3676 47k -
3688 680R -
3723 , 3724 15k 18k
3727 , 3728 5k6 6k8
3729 , 3730 3k3 4k7
3743 , 3744 1k5 2k2
3745 , 3746 3k3 5k6
3754 , 3755 1M 47R
3769 12k 8k2
3772 6k8 5k6
3774 15k 8k2
6614 1N4148 -
7616 BC857B -
7622 BC847B -
Variations table for Analog Circuit
Autoreverse
Non-autoreverse