Pioneer dcz 72 service manual

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The future of sound and vision.

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EJ313151?
31w
gag EE £2.22;- ORDER NO.
ARP1689
STEREO DOUBLE CASSETTE TAPE DECK AMPLIFIER
MODEL DC~Z7Z HAS FIVE VERSIONS:
Type Power requiremenl Export destination
HB ACZZUV.240V(swiihcabIe). Uniied Kingdom
HE AC220V.240V(swiillcableM European confluent
HEZ AC220V.240V(swithcabIe)x WesI Germany
SD ACIIOV,120V-127V,220V,240V(swiihcable) Kingdom OI SaudiArabia and general markel
YP ACZWV only Australia , .\

-Change The jumper wires OI assembly boards.

uThis manual is applicable to the DC-Z72/HB and HE types.

0 For HE type,refer to pages 71-72.

0 For the other types,refer to additional service manuals.

oCe manual pour Ie service comprencl Ies explications en Iraneais de réglage.
o Este manual de servicio trata deI métode ajuste escrito en espafiol.

CONTENTS

1.8PECIFICATIONS ------------------------- 2 6.ADJUSTMENTS -------------------------------- 54

2.P.C.BOARDS LOCATION -------------- 3 REGLAGE ..... 53

3.EXPLODED VIEWS,PACKING AJUSTE .-
AND PARTS LIST .............................. 5 7J0 INFORMATION .......................... 58

4.SCHEMAT|C DIAGRAM AND 8.FOR HE TYPE ................................. 71
P.C.BOARDS CONNECTION 9.CONNECTIONS -------------------------------- 73
DIAGRAM .......................................... 1g IO.PANEL FACILITIES .................... 75

5.ELECTRICAL PARTS LIST --------- 49

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

PIONEER ELECTRONICS SERVICE INC. PO. Box 1760, Long Beach, CaIiIDrnia 90801 U.$.A.

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

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

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

© PIONEER ELECTRONIC CORPORATION 1989 yv ng989 primed in Japan,

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I [3-272

1. SPECIFICATIONS

Cassette tape deck amplifier: DC-Z72

AMPLIFIER SECTION

Continuous Average Power Output is 27 Watts per chan-
nel, min., at 8 ohms from 40 Hertz to 20,000 Hertzv with
no more than 0.3% total harmonic distortion.

'Measured pursuant to the Federal Trade Commissions Trade
Regulation rules on Power Output Claims for Amplifiers.

50 W + 50 W (l kH1,TiH,Dt 1 /0, 8 ohms)
50 W + 50W (1 kHz, THE. 1%, 8 ohms)
....... 290 W .
33 W + 33 W
(1 kHz, TiH.D. l %, 8 ohms)
Graphic equalizer frequency band ............ ,. 100 Hz, 330 HZ.
1kH2, 3.3 kHz, 10 kHz, :7 dB
Hum and Noise IDIN, continuous Power/50 le

Music power
DIN music power,
Peak music power ,,,,,,,,,,,,,,
Continuous power output IDINI.

PHONO ........................................................... 68 dB/GO dB
Total Harmonic Distortion
(40 Hz to 20,000 Hz, 15 W, 3 ohms)" ........ No more than 0.2%
Tape Deck Section
Systems ,r 4 track, 2~channel stereo

Heads ..... Recording/playback head x 1
Playback head x 1

Erasing head x 1

Mororuwn. DC servo 2 speed motor x 2

No more than 0.09% IWRMS)
.. Approximately 95 seconds
(060 tape)

Wow and Flutte
Fast Winding Time.

Frequency Response I- 20 dB recordingl: . s. . V
Normal tape i 35 Hz to 14,000 Hz :6 dB

CrOz tape 35 Hz to 15,000 Hz :6 dB
Signal-tornoIse ratio

Dolby NR OFF ............................................................ 56 dB
Noise Reduction Elfect

Dolby B type NR ON ...................... More than 10 dB (at 5 kHz)

Furnished Parts
Operating instructions
Remote control unit
Dry cell batteries

............ l
. l

Miscellaneous
Power requirements
U.K. model .................................. a.c. 240 Volts -, 50/60 Hz
Other destination models
............... AC 110/120 - 127/220/240 V lswitchablel 50/60 HZ
Power Consumption .................................................... 185 W
Dimensions ............................ 360 (W) x 271 (H) x 334 (D) mm
1473/16 (W) X 13-1/8 [H] x 1041/16 ID) in
Weight (without package) .. 7,9 kg (17 lb 7 all

Accessories
EP Adaptor ........................................................................ 1

. Specifications and design sub/eat to possible modification without
notice due to improvement .

' ' Measured 8y Audio Spectrum Analyser.