Pioneer ct 737 service manual

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PIONEER"

The future of sound and vision.

Scfiicc
Wanna] f?

ARP1 547

STEREO CASSETTE TAPE DECK

CST-737-
CT-737 AND CT-737-S HAVE TWO VERSIONS:

Applicable model
TYDB CT-737 CT:;37 Power requirement Export destination
HEM o o AC220V. 240v (switchable) * European continent
H8 0 - AC220V. 240V (swilchable) * United Kingdom

* Change the primary wiring of the power Transformer.
OThis manual is applicable to the HEM and HB types.
0 For the CT-737/HB and CT-737-S/HEM types, refer to page 52.
o The CT- 737- S is the same as the CT- 737 except for the color.

0 Ce manuel pour le service comprend les explications en frangais de réglage.
o Este manual de servicio trata deI método ajuste escrito en espanol.

CONTENTS

I. SPECIFICATIONS .................... 2
2. PANEL FACIFITIES ................... 3
3. PACKING .......................... 7
4. EXPLODED VIEWS AND PARTS LIST ...... 3
5. SCHEMATIC DIAGRAM ................ 15
6. RC. BOARDS CONNECTION DIAGRAM ..... 19
7. ELECTRICAL PARTS LIST .............. 23
8. ADJUSTMENTS ...................... 31
8. REG RAGE ......................... 38
s. AJUSTE ........................... 45
9. FOR CT-737/HB AND CT-737-S/HEM TYPES. . 52

PIONEER ELECTRONIC CORPORATION 4-1, Meguro 1 -Chome Meguro-ku. Tokyo 153. Japan

PIONEER ELECTRONICS SERVICE INC. P. O. Box 1760. Long Beach Calilornia 90801 U. S A.

PIONEER ELECTRONICS OF CANADA, INC. 505 Cochrane Drive Markham, Ontario L3H 8E3 Canada

PIONEER ELECTRONIC [EUROPE] N. V. Keetberglaan 1. 2740 Beveren. Belgium

PIONEER ELECTRONICS AUSTRALIA PTY. LTD. 178- 184 Boundary Road. Braeside. Victoria 3195, Australia TEL: [03) 580-9911

SI© APR. 1988 aned in Japan

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i. SPECIFICATIONS

Systems ................ 4 track, channel stereo
Heads ........... Hard parmalloy recording/playback
combination head it

Erasing headziFerrite held) V

Motors .............. DC servo capstan motor x
DC reel motor at

DC auxiliary motor x |

Wow & Flutter .................. 0.023%[WRM5I
. 2 0.03%(DINI
Fast winding time ........ Approximately 80 seconds
(050 lope)

Frequency response (- 20 dB recordlngl
Metal tape t .. .......... 20 H! to Zl.DOOHz
Chrome tape . . ......... 20 Hz to 20,000 Hz

Normal tlpe ............... 20 Hz to 20,000 Hz
Signal-to-noise raun

DOLBY NR OFF .
Noise Reduction Effect

DOLBY NR 3 type ON . . More than 10 dB (at 5 kHz)

DOLBY NR C type ON . . More than 19 dB (at 5 kHz)
Harmonic distortion . No more than 0.5% (0 dB)

........ More than 55 dB

input ....................... LlNE: 53 rnV
(input impedance: 56 km
Output .......................... LINE: 316 mV

(Output impedance: 52 ml
Headphones: 0,8 mw
(Load impedance an Vfi Max.)

Miscellaneous

Power Requirements ........... AC 240V, 50/60 Hz
Power Consumption . . . . ................... 22w
Dimensions ...... 420M) x 133.5IH) x 372(0) mm
Weight [without pack-9e) ............ , t . . . 73 k9
Accessories

Operating instructions
Connecting cords t . .

NOTE:
Spa-dimer Druids-91 Mien tumble modificatimt without
notice, due to improvements,

2. PANEL FACILITIES

F RONT PANEL

w-i-m- crrw

0:0

M: "any

0 POWER switch

Turn the power on.

Aher the power is turned on, the dotted lines in the level
meter flash (or approximately 4 seconds until the circuits
of the unit have stabilized. The unit will not operate during
this time even if one o! the operation buttons is pressed,

8 Cassette door OPEN/CLOSE button

NOTE:

If Ihe cam doork do We the unit it turned OFF, M the
pawl! is man turned 0N. me cassette door my open lid dose
the! fleeing m ol the apereo'on buttons. This ms when the
rniaapmceslor rant: the door medians" to its illitini flute Ind
does not indium my mdiunfliom'ng a! the unit,

9 COUNTER selectors

To reset the displayed tape counter or time counter

information.

RESET

Resets ti» counter indication to "0000."

MODE:

Selects one oi the following two counter modes.

t Normnl tape counter

Yime counter (displays the elapsed playback or recording
time)

1/ J/J/JJ/ it/

o TAPE RETURN button

This button is used in the rope counter mode to fast forward
or rewind the tape to a point near the counter reading
"0000.

a noun! NR selectors

DNIOFF:
Used to turn the Dolby NR system circuits ON or OFFt

BIC:
Via the ONIOFF switch in the ON position, Dolby B or C
cln be selected with this switch.

6 MPX FILTER switch
This switch '5 effective only during recording with Dolby NR.

0 REC LEVEL control

@ REC BALANCE control

3)