Pioneer xrnm 3 v service manual

Page 1

Pioneer sound. vision. soul

Service
Manual

COMPACT MINI COMPONENT

X-NM3OVCD
XR-NM3V

THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S).

ORDER NO.
RRV2546

Type Model Power Requirement The voltage can be converted by
XR-NM3V the followmg method.
DDXCN O AC110-127V/220-230V/240V With the voltage selector
DLXCN/NC O AC110-127V/220-230V/240V With the voltage selector

o X-NM30VCD is combination of the following components.

Component Model Service manual Remarks
X-NM30VCD
STEREO VCD CASSETTE DECK RECEIVER XR-NM3V RRV2546 This manual.
SPEAKER SYSTEM S-NM3V RRV2555
CONTENTS
1_ SAFETY INFORMATION ...................................... 2 7 GENERAL INFORMATION ................................ 57
2. EXPLODED VIEWS AND PARTS LIST --------------- 3 7.1 DIAGNOSIS ---------------------- -- 57
3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM 12 7.1.1 ERROR DISPLAY ------ -- 57
4_ PCB CONNECTION DIAGRAM ......................... 34 712 POWER ON SEQUENCE ...................... 58
5. PCB PARTS LIST ---------- 48 7.1.3 CIRCUIT DESCRIPTION --------- -- 59
6. ADJUSTMENT --------------- 53 7.1.4 DISASSEMBLY/ASSEMBLY---- -- 60
7.2 PARTS .. 54
7.2.1 10 ----- -- 64
7.22 DISPLAY ................................................. 67

8. PANEL FACILITIES AND SPECIFICATIONS ------- 7O

PIONEER CORPORATION 4-1, Meguro 1-chome, Meguro-ku, Tokyo 153-8654, Japan
PIONEER ELECTRONICS (USA) INC. P.O. BOX1760, Long Beach, CA 90801-1760, U.S.A.
PIONEER ELECTRONIC NV Haven 1087, Keetberglaan 1, 9120 Melsele, Belgium

PIONEER ELECTRONICS ASIACENTRE PTE. LTD. 253 Alexandra Road, #04-01, Singapore 159936

©P|ONEEFI CORPORATION 2001
T -ZZK OCT. 2001 Printed in Japan

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X-NM3OVCD, XR-NM3V

1. SAFETY INFORMATION

This service manual is intended for qualified service technicians ; it is not meant for the casual do-it-
yourselfer. Qualified technicians have the necessary test equipment and tools, and have been trained
to properly and safely repair complex products such as those covered by this manual.

Improperly performed repairs can adversely affect the safety and reliability of the product and may
void the warranty. If you are not qualified to perform the repair of this product properly and safely, you
should not risk trying to do so and refer the repair to a qualified service technician.

IMPORTANT
THIS PIONEER APPARATUS CONTAINS
LASER OF CLASS 1.
SERVICING OPERATlON OF THE APPARATUS
SHOULD BE DONE BV A SPEClALLY
INSTRUCTED PERSON.

LASER DIODE CHARACTERISTICS
MAXIMUM OUTPUT POWER: 5 mW
WAVELENGTH: 760 . 800 nm

Additional Laser Caution

1. Laser Interlock Mechanism

The loading position detect switch (in CD mechanism
assembly) is set to "CLMP ON(CD CLOSE)" (ON:|ow
|eve|,OFF:high level) position, the system control
|C(|C7002) get the "CLMP" signal, and hand the laser
"LDON" signal to |C1101.

Then a laser diode can be lighted except when the level of
signal CLMP is low.

The interlock also does not function in the test mode*.
Laser diode oscillation will continue, if pin 9 ol TA2150FN
(IC1 101) on the RF AMP is connected to GND, or pin 10 is
connected to low level (ON), or else the terminals of
Q1101 are shorted to each other (fault condition).

. When the cover is opened, close viewing of the objective

lens with the naked eye will cause exposure to a Class 1
laser beam.

r : Relerto page 56.