Pioneer ct 301 service manual

Page 1

(L9 PIONEER

N

CIRCUIT & MECHANISM
DESCRIPTIONS
REPAIR & ADJUSTMENTS

STEREO CASSETTE TAPE DECK

T-BD
OT-sso

o CT-350 differs from CT-301 in style design (color).

Shown in this photo is Model (IT-301.

ORDER NO.
ARP- 513- O

0 Models CT-301 and CT-350 come in versions distinguished as follows:

Type Applicable mod-l Power requirement Export destination
cr-301 CT-350

HEM O O Aczzov (24ov)* European continent

H a O - Ac24ov (22ovr United Kingdom

HP 0 O A0240v izzoVI Australia

KU O O AC120V only U.S.A.

KC 0 - AC120V only Canada

D O O AC120V/220V/240V lswiichable) General export

Change the primary wiring of the power transformer.

a This service manual is applicable to the HEM type. For servicing of the KU type, please refer to
pp 51, 52.

0 Ce manuel d' instruction se refere au mode de réglage, en fracais.

0 Este manual de servicio trata del métoto de ajuste escrito en espanol.

PIONEER ELECTRONIC CORPORATION a 1 Meguro lichome, MeguIG-Ku. Tokyo 153. Japan
PIONEER ELECTRONIOS (USA) INc PO Eiox 1780 Long Beach Cawoma 904301 U.S.A.
TEL. [300] 421- 1404 (2131420 5814
:IONEEn ELECTRONIC [EunOpE] N. v. Keenberglaan 1 2740 Bax/even Belgium TEL. 03/ 775 28 DB
PIONEER ELECTRONICS AUSTRALIA DTY. LTD. 17B 1814 Boundary Road Braeslde Victor E 3195 Ausrrana
TEL: [0:1] 580-9911

YH © MAR. 1984 Printed in Japan

Page 2

c:r-301,:350

CONTENTS

1. SPECIFICATIONS .................... 2
2. FRONT PANEL FACILITIES ............. 3
3. DISASSEMBLY ...................... 4
4. PARTS LOCATION ................... 6
5. ELECTRICAL PARTS LIST .............. 7
6. PACKING .......................... 9
7, P.C. BOARDS'CONNECTION DIAGRAM . . . . 10
8. SCHEMATIC DIAGRAM ................ 13

1. SPECIFICATIONS

Systems ................... 4-week, 2-channel stereo
Heads ....... "Hard Permallov" recording/playback head x 1

"Ferrite" erasing head X 1
Motor ...................... DC servo motor x 1
Wow and Flutter ........... No more than 0.06% IWRMS)

No more than t0.18% IDINI
FastWinding Time . . . . Approximately 110 seconds (0-60 tape)
Frequency Response

-20dB recording:

Normal tape .................... 35 to 13000Hz

Chrome tape ................... 35 to 14000Hz

Metal tape . . . . 35 to 15000Hz
Signal-to-Noise Ratio

Dolby NR OFF .................. More than 57dB
Noise Reduction Effect

Dolby NR ON ............ More than 10dB (at 5kHzI
Harmonic Distortion ........... No more than 15% (Des)
Input
(Sensitivity)

MIC (L, RI ............... 0.3mV, 6mm diam. jack

(Source impedance IOan
LINE IINPUTI ........................ SOmV

(Input impedance 75km)

Output (Reference level)
LINE (OUTPUT) ...................... 330mV
(Output impedance 50km)

Furnished Parts

Operating instructions ........................ 1
Connection cord with pin plugs .................. 2

9. BLOCK DIAGRAM ................... 15
10. EXPLODED VIEW .................... 16
11. ADJUSTMENTS ..................... 23

R EG LAGE ......................... 29
AJUSTE ........................... 35
12. IC DATA .......................... 41
13. MECHANISM DESCRIPTIONS ............ 42
14. SUPPLEMENT FOR KU TYPE ............ 51

Subfunctions
o Dolby NR system ION/OFF) B type
I 3 position tape selector (NOFiM/CrO2 IMETAL)

0 Air damped eject function
a Full automatic stop function
u Timer stand-by function
a LED level meter
o One-touch recording
Miscellaneous
Power requirements
KU, KC models .................... ACiZOV, 60Hz
HEM model .................... AC220V, 50/60Hz
HB, HP models .................. ACZAOV, 50/60HZ
D, DIG model . . , . AC120V/220V/240V, 50/60H2 (switchablei
Power Consumption
KU, KC models ........................ 14 watts
HEM, HB, HP model ..................... 19 watts
D, DIG models ........................ 14 watts
Dimensions ............ 420 IWI x 120 H) x 238 (D) mm

16-9/16 (W) x 4-6/8 (HI x 9-3/8 (DI in

Weight (without package) ............. 3.8kg (8 lb 6 oz)

NOTE:

Specifications and the design subject to possible madifica»
(ions without notice due to improvements.