Pioneer ct 940 service manual
This is the 23 pages manual for pioneer ct 940 service manual.
Read or download the pdf for free. If you want to contribute, please upload pdfs to audioservicemanuals.wetransfer.com.
Extracted text from pioneer ct 940 service manual (Ocr-read)
Page 1
(la PIONEER
Scfiice
CIRCUIT & MECHANISM '4 C
< . 1.9-1 .. ORDER NO.
Shown in this photo is Model CT-4o. ARP- 36 9- 0
DESCRIPTIONS
STEREO CASSETTE TAPE DECK
T-4I
CT-s4o
CT-ao
CT-740
CT-ED
CT-54o
CONTENTS
1. MODEL COMPARISONS ................. 2
2. BLOCK DIAG RAMS .................... 3
3. CIRCUIT DESCRIPTIONS ................ 8
4. MECHANICAL OPERATIONS ............. 18
p'ONEER ELECTRONIC CORPORATION 4-1. Meguro 1-Chome Meguro-ku Tokyo 153. Japan
DIONEER ELECTRONICS [USA] INC. 1925 E Dom: inguez St. Long Beach. Cal-fornna 80810 U. S A.
PIONEER ELECTRONIC [EUROPE] N. V. Keecberglaan 1 2740 Beveren. Be|gi um
FIONEER ELECTRONICS AUSTRALIA RTY. LTD. 178-184 Boundary Road, Braes de, V CCOTIB 3195. Austrata
YH © MAY 1983 Printed in Japan
Page 2
1 . MODEL COMPARISONS
The same tape transport mechanism and basic electrical circuits
are used in the CT-20, CT-30, CT-40, CT-540, CT-740, and CT-
940. The different features included in each model are listed in
Fig. 1-1 below.
CT-40 and CT-940 differ only in style design (color). The
mechanism and electrical circuits are identical.
The CT-740 differs from the CT-940 in that the tape counter
is a mechanical type, the Dolby NR system is type B only,
and the headphones output has been omitted.
The CT-30 differs from the CT-40 in that the MS (Music Search)
and REC MUTE functions have been omitted, and the tape
counter is mechanical.
The CT-20 differs from the CT-30 in that the Dolby NR system
is type B only.
The CT-540 differs from the CT-740 in that the MS and REC
MUTE functions have been omitted.
The export destinations for each model are listed in Fig. 1-2.
CT-40 CT-940 CT-740 CT-30 CT-20 CT-540
MS (Music Search) function 0 O 0 .. _ _
REC MUTE (Unrecorded blank creation) function 0 O O - _ ..
B 8: C types Dolby NR system 0 O - O - -
B type Dolby NR system - -- O - O 0
Electronic tape counter (four figures LED numeric dispaly) O O - - - -
Mechanical tape caunter (three figures) - - O O O O
Headphones output 0 O - O O -
Fig. 14 Different features list
1' Model
ypo Remarks
CT40 67-940 CT-740 CT-30 CToZO CT-540
KU O O O O O 0 USA. model
KC 0 - - - O O Canada model
HE - O O - - 0 European continent model
HB - O O - - 0 United Kingdom model
HP 0 O -- O O 0 Australia model
0 O O - O o 0 General export model
DIG - - - - O - US. Military model
Fig. 1-2 Export destinations list