Onkyo DXV 500 Service Manual

Page 1

DX-VSOO

Ref. No. 3526

ONKYO SERVICE MANUAL

CD CDV LD

COMPATIBLE PLAYER
MODEL DX-V500

SATETY-RELATED COMPONENT WARNING TABLE OF CONTENTS

COMPONENTS INDENTIFIED BY MARK A ON
THE SCHEMATIC DIAGRAM AND IN THE

PARTS LIST ARE CRITICAL FOR RISK OF FIRE
AND ELECTRIC SHOCK. REPLACE THESE Exploded "'6" Packing and Pans list ------
CONPONENT S WITH ONKYO PARTS WHOSE Schematic and pcb connection diagrams
PART NUMBERS APPEAR As SHOWN IN THIS

Specifications ......................................................................... 2
IIIII 3
17

MANUAL Pcb pans list". .43
MAKE LEAKAGE-CURRENT OR RESIST ANCE sefdigmm new" 47
MEASUREMENTS TO DETERMINE THAT Adjustments --------------------- .....49
EXPOSED PARTS ARE ACCEPTABLY IC information... ..... 59
INSULATED FROM THE SUPPLY CIRCUIT information. ____ 70
BEFORE RETURNING THE APPLIANCE TO .

Block dIagram ........................................................................ 71

THE CUSTOMER

ON KYO®
Alllllll BIIMPIIHENIS

Page 2

SPECIFICATIONS

General

System ......................................... LaserVision Disc system and
Compact Disc digital audio system

Laser ................... Semiconductor laser wavelength 780 nm

Power requiremen ..................... AC 120/220 V, 50/60 Hz

(automatic select)

Power consumption

Weight ...... .i 7.7 kg
Dimensions 455 (W) x 407 (D) x 138 (H) mm
Operating temperature +SC ~ +35C
Operating humidity .. 5% - 85%

(There should be no condensalion of moisture.)

Video characteristics (2 pairs)

Format ........................................................ NTSC specifications
Video output
Level 1 Vp-p nominal,sync.negative,tenninated

Impedance 75 Q unbalanced
...... RCA jacks
S VIDEO output (2 pairs)
Y output level . 1 Vp-p (75(2)
. 286 mVp-p (759)
..... S VIDEO jacks
Audio characteristics (2 pairs)
Output level
During analog audio output ................................ 200 mes
(1 kHz, 40%)
During digital audio output . 200 mes
(l khz, -20 dB)
Jacks ................................................................. Both RCA jacks
Number of channels .................................................... 2 (Stereo)

Digital Audio Characteristics

Frequency response 4 Hz - 20 kHz

SN ratio 115 dB (EIAJ)

Dynamic range 96 dB (ElAJ)

Total harmonic distortion Below 00035%

Wow and flutter Below measurable limit

(2 0.001% W.PEAK) (EIAJ)

LD is in compliance with EIA].

Other terminals

Optical digital output Optical digital jack
AC-3 RF OUT .................... RCA jack
Accessories

Remote control unit .................................................................. 1
Size "AAA" (IEC R03) dry cell batteries . . 2
Video card .. . 1
Audio cord .. 1
Power source plug adapte . 1
Power cord ................... i 1

Instruction manual .................................................................... 1

NOTE :
The specifications and design of (his product are subject to
change without notice, due to improvement,

Page 9

DX-V500

Refer to

2.7 CARRIAGE ASSY

Reler to

26 LOADING MECHANISM SECTION

_11_

Page 45

DX-V

I PD021282 (MOTHER ASSY IC101)

- MECHANISM CONTROL IC
0 Pin Function
No. Pin Name l/O Function
1 VCC I Power supply pin. Apply 5V t 10%.
2 RFCOHH O ELF" :gicflgnégiggsignzlfglfiuct/v inner ciircuit gain up. others are High.
3 MUTE 0 Audio mute control signal output of audio system. L : Release MUTE . H : MUTE
4 SRDMUTE O Mute control signal output tor A63. Release MUTE during playback. L : Release MUTE, H : MUTE
5 TILT ON 0 (For debugging)Tilt operation inlormation. H 2 during operation for checking tilt operation.
a TILTERR I AID This signal is AID convened as the tilt servo control input. Control the tilt motor so that this signal becomes 2.5V.
7 TBALERR l A/D Tracking error balance signal input. This signal is NO converted as the tracking offset control input.
8 SLDERR ' A/D gigs] signal is NO convened as the slider servo control input. Control the tilt motor so that this signal becomes
9 SLDPOS I A/D :ggugnggsétmggjetection switch input. Detect the position by reading A/D input value which each switches are
10 XFOK I Focus seNo lock signal input. L : Lock . H : Unlock Use for lock detection of locus servo.
11 SINGLE I ATTT SW of rear panel use torthe single modeThis information transmit to mode control by communication.
L: Single H : Normal
12 TBALDRV o PWM Emmi Itirel-téacking offset signal to PWM output. then use for auto tracking onset. 91o usec period. tri-state
13 XCD 0 LD/CD switch signal output pin. L: CD H: LD
14 XPLAY 0 Signal output during spindle servo. L : during servo H :during acceleration, brake and stop
15 SQOUT I Command data input from DSP. Read out SUBQ,
16 COIN Command data output to DSP.
17 COCK O DSP reading/writing command clock output pin. read at rising edge.
18 SLDDRV o PWM Slider control signal output pin. 5V=FWD. 0V=FIEV. 2.5V=STOP 910 usec period. tri-state control H. L 2
19 SI1 I Data input Irom the mode control IC.
20 $01 0 Serial data output to the mode control IC.
21 SCK1 I [0 Clock for serial communication with the mode control IC. Becomes input mode without communicate with the
mode control IC.
22 T20 IINT :racking error zero cross signal input pin. Monitor this signal when searching track count in the miss clamp
etection.
23 SHAKE I /O Hand shake signal for data communication with the mode control IC. Each microcomputer controls input/output
by bilateral data line,
24 TILTDRV I IO afimgll'lfontrol output pin. 0.5V - tray IN. OUT/tilt DOWN, UP 2.5V - STOP Use for tilt servo that tilt drive is
25 XANA O Digital/Analog audio switch signal output. L : Analog H : Digital
26 XPBV I Playback vertical sync. signal input of LD/CDV. L :during vertical sync.
21 CNVss I Ground pin for AID conversion.
28 XRESET I Reset signal input. L: Reset H : Release reset Mode control is controlled.
29 XIN I DMHz clock oscillation input pin,
30 XOUT O 9MHzclock oscillation output pin.
31 N.C. 0 Not used.
32 GND l Ground.
33 SW1 I
34 SW3 I Switch input for Loading/Tilt position detection
35 SW2 I

_62_