Pioneer xdz 55 t service manual

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(U) PIONEER

The Art of Entertainment

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STEREO TWIN CD CASSETTE DECK AMPLIFIER

XD-ZEET

XD - 255T HAS THE FOLLOWING :

ORDER No.
ARP2407

Type Power Requlrement Remarks
HE ACZZOV- 230V. 240V (Switchable) *
HB AC220V-230V, 240V (Switchabie) *

HEWZIW AC220V-230V, 240V (Switchable) *

* Change the jumper wires of assembly board.

0 This manual is applicable to the HE, HB and HEWZIW types.

' As to the HB and HEWZIW types, refer to page 82.

r This product is a component of a system.

0 As to the MECHANISM DESCRIPTION, refer to the PD-Z74T service guide (ARP2144).
0 The adjustment for XD -255T is the same with that for XD-254T.

' For adjustment refer to ADJUSTMENTS FOR XD-254T, XD-284T, DC-294, 00-284 and
DC~Z74" IARPZ140I.

CONTENTS
1' SAFETY [NFORMAT'ON .................................... 2 4' PCB PARTS LIST ............................
2. EXPLODED VIEWS, PACKING AND 5. FOR HB AND HEWZIW TYPES
PARTS LIST ----------------------------------------- 3 s. PANEL FACILITIES
a. SCHEMATIC DIAGRAMS AND PCB CONNECTION 7. SPECIFICATIONS ---------
D'AGRAMS ................................................... 23

PIONEER ELECTRONIC CORPORATION 471. Meguro irChome. Meguroiku, Tokyo 153. Japah

PIONEER ELECTRONICS SERVICE INC. PO. Box 1760, Long Beach. CaiIfomIa 90801 U S A

PIONEER ELECTRONICS OF CANADA, INC. 505 Cochrane Drlve. Markham, OntarIO L3H 8E3 Canada

PIONEER ELECTRONIC [EUROPE] N.V. Haven 1087 Keelbergiaan i. 9120 Melseie. Belqum

PIONEER ELECTRONICS AUSTRALIA PTY. LTD. 1787184 Boundary Road. BraCSIde. VICtorIa 3195. AusIIaIIa TEL [03] 58079911

© PIONEER ELECTRONIC CORPORATION 1992 DFG JAN 1992

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XD-255T

1. SAFETY INFORMATION

RT (FOR EUROPEAN MODEL ONLY)

a VAROI - a WARNINGI
AVATTAESSA JA SUOJALUKITUS DEVICE INCLUDES LASER DIODE WHICH
OHITETTAESSA OLET ALTTIINA EMITS lNVlSIBLE INFRARED RADIATION
NAKVMATTOMALLE LASERSATEILVLLE WHICH IS DANGEROUS TO EVES. THERE Is
ALA KATSO sATEESEEN, A WARNING SIGN ACCORDING TO PICTURE
LASER 1 INSIDE THE DEVICE CLOSE TO THE LASER LASER
KWH I DIODE Picture 1
? ADVERSEL Lasersatellyn V Warning sign lOr
USYNLIG LASERSTRALING VED ABNING vam'wsme'kk laserrad'amn
NAR SIKKERHEDSAFBRYDERE ER UDE AE IMPORTANT
FUNKTION UNDGA UDSAETTELSE FOR THIS PIONEER APPARATUS CONTAINS
STRALING- LASER 0F CLASS 1
SERVICING OPERATION OF THE APPARATUS
SHOULD BE DONE By A SPECIALLV
L VARNING! -_ INSTRUCTED PERSON.
OSVNLIG LASERSTRALNING NAR DENNA _
DEL AR OPPNAD OCH SPARREN
AR URKOPPLAD, BETRAKTA EJ STRALEN 7 LASER D'DDE CHARACTER'STCS 7

MAXIMUM OUTPUT POWER: 5 mw
WAVELENGTH: 7807785 nrn

LABEL CHECK (TWIN type) - Additional Laser Caution

1. Laser Interlock Mechanism
The ON/OFF status of the U (5601) and L (5603)
switches for detecting the disc clamp state is detected
by the system microprocessor, and the design prevents
laser diode oscillation when both switches U and L are
OFF (high level).
© Thus, the interlock will no longer function it switches
U (5601) and L (5603) are deliberately shorted.
Laser diode oscillation will continue if pins 2 and 3 of
CXA1471S (lC101) are connected to ground or pin 20
is connected to high level (ON) or the terminals of
0101 are shorted to each other (fault condition).

2. When the cover is opened. close viewing of the
objective lens with the naked eye will cause exposure
to a Class 1 laser beam.

HE, HEWZIW and HB types

Littlfsllliitm flimu CAUTION

AMIME IIAII sixxmn 5115 WI" ANS wsim nsmunm

tittiertcgsllm :23:i§§lfll§§§l£.ll INVISIBLE LASER

CLASS 1

WMNGI RADIATION WHEN OPEN,
Mum - MII-IuIUM mun IImIIu I-mmwna nII Im- an AV 0 ID EX P 0 s U R E

I. mm w W." .I urkwwllfl

I........VI.II...,..,...U... mm... mm TO BEAM ARW1023

LASER PRODUCT

ARWIOZI

HE and HEWZIW types HB type HE, HB and HEWZIW types