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Pioneer CLD-1750 Service Manual

Pioneer CLD-1750
77 pages
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WY)
PIONEER’
The
Art
of
Entertainment
ervice
ORDER
NO.
ARP2457
CD
CDV
LD
PLAYER
CLD-1750
CLD-1750
HAS
THE
FOLLOWING
:
ype
|
HB
|
AC220V,
240V(Switchable)*
*
Change
the
connection
of
the
power
transformer’s
primary
wiring.
®
This
manual
is
applicable
to
the
CLD-
1750/HEZ
and
HB.
®
For
HB
type,
refer
to
page
94.
@
For
the
mechanism
adjustments
,
refer
to
the
service
manual
ARP2308
for
CLD-
1600.
®@
Ce
manuel
pour
le
service
comprend
les
explications
de
réglage
en
frangais.
®@
Este
manual
de
servicio
trata
del
método
ajuste
escrito
en
espanol.
CONTENTS
1.
SAFETY
INFORMATION:
+:-+ssessceeseeceeseceeeeeenes
2
7.
ADJUSTMENTS
-vecseccsecescccesccecenssesceesessuss
70
©
LABEL
CHECK
stscoeii
ccsntenspocvensuns
dascaveudeaeaecest
2
REGLAGES
225
case
once
seectuand
dabeeedeccacesedeas
ters
78
3.
EXPLODED
VIEWS,
PACKING
ASUSTES
«teetesessasieseecandectsciecaedesdainadassveees
86
AND
PARTS
LIST
«siverssecszrssccecesessvecavesbenrans
3
8.
FOR
HB
TYPE
-eesecceeceeceecscescencescessnveecueouns
94
A
PCB
LOCATION
-2)-se-setitbeveeniacecnciticalar
cases
19
9.
SPECIFICATIONS
:-++0+ssceeceeccescesecseeaveeeseens
95
5.
SCHEMATIC
AND
PCB
CONNECTIONS
10.
PANEL
FACILITIES
:++----++-s-eeeeeeeeeeeeeeeee
seen
97
DIAGRAMS
Deer
eee
cceereenes
ress
seeeetecenscereseesse
20
&
PCB
PARTS
LIST
1sixieed
oot
iis
icasastbinsieins
61
PIONEER
ELECTRONIC
CORPORATION
4-1,
Meguro
1-Chome,
Meguro-ku,
Tokyo
153,
Japan
PIONEER
ELECTRONICS
SERVICE
INC.
P.O.
Box
1760,
Long
Beach,
California
90801
U.S.A.
PIONEER
ELECTRONICS
OF
CANADA,
INC.
300
Allstate
Parkway
Markham,
Ontario
L3R
OP2
Canada
PIONEER
ELECTRONIC
[EUROPE]
N.V.
Haven
1087
Keetbergiaan
1,9120
Melsele,
Belgium
PIONEER
ELECTRONICS
AUSTRALIA
PTY.
LTD.
178-184
Boundary
Road,
Braeside,
Victoria
3195,
Australia
TEL:
[03]
580-9911
©
PIONEER
ELECTRONIC
CORPORATION
1992
IFJ
APR.
1992
Printed
in
Japan

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Pioneer CLD-1750 Specifications

General IconGeneral
Video OutputComposite Video
Dimensions17.1 x 14.5 x 4.3 inches
Weight11.5 lbs
Laser TypeSemiconductor Laser
Laser Wavelength780 nm
Video Output Level1.0 Vp-p (75 ohms)
Power Consumption30 W
Number of Channels2
Dynamic Range96 dB
Total Harmonic Distortion0.003%
Output Voltage2.0 V
TypeCD Player
Audio Output2-channel
Harmonic Distortion0.003%
Frequency Response20 Hz - 20 kHz

Summary

1. SAFETY INFORMATION

Laser Safety Warnings

Various warnings and details about the laser diode for safe operation.

Label Identification

Identifies and shows various warning labels attached to the unit.

3. EXPLODED VIEWS, PACKING AND PARTS LIST

Exterior Section Parts List

Lists and illustrates parts for the exterior section of the player.

Front Panel Section Parts List

Lists and illustrates components for the front panel assembly.

Top View Section Parts List

Lists and illustrates components visible from the top view of the unit.

Internal Assemblies Parts List

Lists parts for major internal assemblies like mechanism and clamper.

Base Section Parts List

Lists and illustrates components for the base section of the player.

Mechanism Assembly Parts List

Lists and illustrates components for the mechanism assembly.

Chassis Section Parts List

Lists and illustrates components for the chassis section of the player.

Servo Mechanism Base Parts List

Lists and illustrates parts for the servo mechanism base section.

Rack Section Parts List

Lists and illustrates parts for the rack section of the player.

Pickup Assembly Parts List

Lists and illustrates components of the pickup assembly.

Packing Parts List

Lists all parts required for packing the player.

4. PCB LOCATION

Printed Circuit Board Locations

Identifies the location and composition of main PCB assemblies.

5. SCHEMATIC AND PCB CONNECTIONS DIAGRAMS

Schematic Diagram Conventions

Explains symbols, abbreviations, and notations used in schematic diagrams.

Overall Wiring Diagram

Shows the complete wiring connections between major components and boards.

SYPS Assembly Schematic

Provides the schematic diagram for the System Power Supply (SYPS) assembly.

Pickup Assembly Schematic

Lists and illustrates components of the pickup assembly.

AFM/Spindle D Section Waveforms

Displays signal waveforms for the AFM and Spindle D sections.

D. Audio Section Waveforms and Voltages

Lists pin voltages and shows waveforms for the D. Audio section.

ASCB Board Assembly (Part 3/4) - D. Audio Section

Schematic diagram for the ASCB board, focusing on the D. Audio section.

ASCB/SW1 Board Assemblies - D. Audio Section

Schematics for ASCB (part 4/4) and SW1 board assemblies, including D. Audio.

Video Section Waveforms

Displays signal waveforms for various ICs in the video section.

ASCB & FG Board Assemblies Schematics

Schematics for ASCB (part 2/4) and FG board assemblies.

FLKY Assembly Schematic

Schematic diagram for the FLKY (Fluorescent Lamp & Key) assembly.

HEPB Assembly Schematic

Schematic diagram for the HEPB (Headphone) assembly.

SHKY Assembly Schematic

Schematic diagram for the SHKY (Shuttle & Key) assembly.

PSWB Assembly Schematic

Schematic diagram for the PSWB (Power Switch) assembly.

6. PCB PARTS LIST

List of Assemblies

Lists major assemblies with their part numbers.

Semiconductors

Lists semiconductor components used on various PCBs.

Switches and Relays

Lists switches and relays used on PCBs.

Coils, Filters, and Resistors

Lists inductors, filters, and resistors used on PCBs.

VDTB BOARD ASSEMBLY

VDTB Board Components

Lists semiconductors, coils, and capacitors for the VDTB board.

SCRT BOARD ASSEMBLY

SCRT Board Components

Lists semiconductors, relays, coils, resistors, and capacitors for the SCRT board.

PSWB ASSEMBLY

PSWB Assembly Components

Lists components for the Power Switch (PSWB) assembly.

FLKY ASSEMBLY

FLKY Assembly Components

Lists components for the Fluorescent Lamp & Key (FLKY) assembly.

HEPB ASSEMBLY

HEPB Assembly Components

Lists coils and capacitors for the Headphone (HEPB) assembly.

7. ADJUSTMENTS

Test Mode Procedures

Explains how to enter, operate, and cancel the test mode for player adjustments.

TV SCREEN AND LED DISPLAYS IN THE TEST MODE

Test Mode Screen Displays

Illustrates and explains the various displays seen on the TV and unit during test mode.

7.2 REQUIRED INSTRUMENTS

Required Tools and Equipment

Lists all necessary tools and test equipment for performing adjustments.

7.3 ADJUSTMENT PREPARATION AND NOTES

Preparation Steps

Outlines preparatory steps before starting adjustments, including disc insertion.

7.4 ASCB BOARD ASSEMBLY ADJUSTMENT

ASCB Board Adjustments

Details specific adjustments for the ASCB board assembly with procedures and specifications.

7.5 ELECTRICAL ADJUSTMENTS

VDTB Board Electrical Adjustments

Details electrical adjustments for the VDTB board assembly.

8. FOR HB TYPE

Contrast of Miscellaneous Parts (HB vs HEZ)

Highlights differences in parts between HB and HEZ models.

SYPS Assembly Part Differences

Details specific part number differences for the SYPS assembly between models.

10. SPECIFICATIONS

General Specifications

Provides overall technical specifications for the player's system and laser.

Disc Specifications

Details specifications for LaserVision, PAL, NTSC, and Compact Discs.

Video and Audio Characteristics

Describes video output levels, audio output levels, and frequency response.

Other Terminals and Accessories

Lists terminal functions and included accessories.

7. Functions

Remote Control Functions

Details operations achievable via the remote control unit for various play modes.

Player Functions Overview

Summarizes player functions like display, playback modes, and special features.

11. PANEL FACILITIES

Front Panel and Remote Control Layout

Identifies and explains the function of buttons on the front panel and remote control.

Display Window Indicators

Indicator Functions

Explains the meaning of various indicators on the player's display window.

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