Pioneer XR-P270C Service Manual

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Manual fo ss
RRV 1703
STEREO CD CASSETTE DECK RECEIVER
XR-P270C
XR-P170C
THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S).
Type | Model Power Requirement The voltage can be converted by the
XR-P270C | XR-P170C following method.
| O | 0 _| AC110 - 127/220 - 240 With the voltage selector
RDXY | O [| OO _ | AC110~- 127/220 - 240V With the voltage selector
AC110 — 127V/220 - 240V With the voltage selector
AC110 - 127V/220 — 240V With the voltage selector
CONTENTS
1. SAFETY INFORMATION .........:.ccccssssssetessseteeseserees 2 7. GENERAL INFORMATION ............cccccccsessscssesereses 50
2. EXPLODED VIEWS AND PARTS LIST .................. 3 LAN CPABUS ficensvch chacdcsssdeevecaescadh sdea duvacvevacsstavetoete ces 50
3. SCHEMATIC DIAGRAM ...........:ccccesssessesssessrecetsees 16 Msdod NG wcccesvseveceteteceetictie dott astediciateiavsPactess 50
4. PCB CONNECTION DIAGRAM ..............2scccsseceseeees 30 Th:2: DISPLAY sestcsesssacivss ceeds dsaiesvtuivasteasrioee 61
5: (PEB- PARTS LIST: sicccscrcsesebssacssecsuxivecesecticersavacsatendees 38 7:2 ‘DIAGNOSIS ‘ecssesccsascieececicacietdccesades ov eesevesnscatad 62
6. ADJUSTMENT ........ eee eceeeeesecessseceeseeneesreenseeses 44 7.2.1 DISASSEMBLY ...........cecescccsesereeseeeeee 62
7.2.2 TROUBLESHOOTING .............cccccceeeee 64
7.3 BLOCKDIAGRAM ...........::csssscsessscesseseessseseses 68
8. PANEL FACILITIES AND SPECIFICATIONS .......... 69
PIONEER ELECTRONIC CORPORATION 4-1, Meguro 1-Chome, Meguro-ku, Tokyo 153, Japan
PIONEER ELECTRONICS SERVICE, INC. P.O.Box 1760, Long Beach, CA 90801-1760, U.S.A.
PIONEER ELECTRONIC [EUROPE] N.V. Haven 1087, Keetberglaan 1, 9120 Melsele, Belgium
PIONEER ELECTRONICS ASIACENTRE PTE. LTD. 501 Orchard Road, #10-00 Lane Crawford Place, Singapore 0923
© PIONEER ELECTRONIC CORPORATION 1996 T-FFK OCT. 1996 Printed in Japan

Pioneer XR-P270C Specifications

General

CD Player	Yes
Type	Stereo System
Speaker Configuration	2-Way
Tuner Type	AM/FM
Power Source	AC Power

Summary

Safety Information

Additional Laser Caution

Details the laser interlock mechanism and potential exposure risks.

Exploded Views and Parts List

2.1 Packing

Illustrates packing components and lists related parts.

2.2 Exterior (1/3)

Shows an exploded view of the exterior components (part 1 of 3).

2.5 CD Loading Mechanism Section

Details the disassembly and parts of the CD loading mechanism.

2.6 Servo Mechanism Assy

Lists parts and shows an exploded view of the servo mechanism.

Schematic Diagram

3.1 Overall Connection and TRANS ASSY

Shows the overall system connections and the TRANS ASSY schematic.

3.5 AF Assy

Schematic diagram for the AF (Audio Frequency) assembly.

3.6 Power Assy

Schematic diagram for the power supply assembly.

3.7 Display Assy, LCD Assy and Lamp Assy

Schematics for display, LCD, and lamp assemblies.

PCB Connection Diagram

4.1 TRANS ASSY

PCB connection diagram for the TRANS ASSY.

4.3 Motor Assy, SW Assy and CD Assy

PCB connection diagrams for motor, SW, and CD assemblies.

4.6 Power Assy, CD SW Assy and LED Assy

PCB connection diagrams for power, CD SW, and LED assemblies.

PCB Parts List

List of Whole PCB Assemblies

Comprehensive list of all PCB assemblies and their part numbers.

Contrast of PCB Assemblies

Compares PCB assemblies across different models, highlighting differences.

Power Assy

Lists semiconductor, coil, capacitor, and resistor parts for the Power Assy.

M LCD Assy

Lists semiconductor and component parts for the LCD Assy.

Adjustment

6.1 Tuner Section

Adjustment procedures for FM and AM tuner sections.

6.2 Cassette Deck Section

Adjustment procedures for the cassette deck section, including tape speed.

6.3 Power Section

Adjustment procedure for the Vp voltage in the power supply section.

6.3 Test Mode

Guide on how to enter and exit test modes for CD functions.

General Information

7.1 Parts

Lists key IC parts and their functions, with pin assignments.

IC LC75394NHE (AF Assy)

Specific IC details: block diagram, pin functions, and related components.

IC LA9240ML (CD Assy)

Specific IC details: block diagram, pin functions, and related components.

7.2 Troubleshooting

Detailed troubleshooting steps for common system failures and error codes.

7.3 Block Diagram

Overall block diagram of the power supply system.

Panel Facilities and Specifications