Technics SLDV 170 Service Manual

Page 1

ADOOOS1 14C2

Service Manual

SB-PS75

DVD Changer
SL-DV17O

Because of unique interconnecting cables, when a component
requires service, send or bring in the entire system.

Specifications

Discs played Section
DVD-Video disc: 8/12 cm single-sided, single-layer

8/12 cm single-sided, double-layer
8/12 cm double-sided, double-layer
(One layer per side)
Compact disc (CD-DA, VIDEO CD): 8/12 cm disc

Audio Section

Traverse Deck: RD-DACO31 -A
Mechanism Series
Colour
(S) .......... Silver Type
Area
(EG) ........ Europe.
System SC-DV170
Sound Processor SH-DV17O
Tuner/Amplifier SA-DV170
DVD Changer SL-DV170
Cassette Deck RS-DV170
Front Speakers* SB-EH760
Center Speaker" SB-PC75
Surround Soeakers* SB-PS75
*: Made in Spain.
Video Section
Signal system: PAL (PAL60/NTSC)
Output level:
Composite Video; 1 Vp-p (75 O)
S-video Y; 1 Vp-p (75 (2)
S-video c; 0.300 Vp-p (75 :2) PAL

0.286 Vp-p (75 Q) NTSC

DA converter: Delta-sigma DAC Pickup Section
Frequency response: Beam source: Semiconductor laser
CD audio; 4 - 20 kHz: 1 dB Wavelength: 668 nm
DVD (Ilnear audio); 4 - 22 kH211 dB
(43 kHz sampling) General
4 - 44 kHZ+1. *3 dB Dimensions (WxHxD): 293x89><288 mm
(95 kHZ sampling) Mass: 2.5 kg
Notes: Specifications are subject to change without notice.
Mass and dimensions are approximate.
A WAR N | NG

This service information is designed for experienced repair technicians only and is not designed for use by the general public.

it does not contain warnings or cautions to advise non-technical individuals of potential dangers in attempting to service a product.
Products powered by electricity should be serviced or repaired only by experienced prolessional technicians. Any attempt to service
or repair the product or products dealt with in this service information by anyone else could result in serious injury or death.

Technics®

© 2000 Matsushita Electric Industrial Co., Ltd. All
rights reserved. Unauthorized copying and
distribution is a violation of law.

Page 2

CONTENTS

Page

1 Note- ------- 2
2 Precaution of Laser Diode ------------------------------------------------------ 2
3 Handling Precautions tor Traverse Deck -------------------------------- 3
3.1. Handling of optical pickup ---------------------------------------- 3

3.2. Grounding for electrostatic breakdown preventio

4 Location of Controls -----------------------------------------------
5 Operation Checks and Component Replacement

Procedures ----------------------------------------------------------------------------- 4
5.1. Checking for the DVD module (1) P.C.B
5.2. Checking for the operation P.C.B.

5.3. Checking for the main P.C.B. 6
5.4. Checking for the DVD module (2) P.C.B. ------------------------ 6
5.5. Replacement for the traverse ass all ------------------------------- 7
5.6. Replacement for the disc tray ----------------------------------------- 9
5.7. Disassembly and reassembly for mechanism base drive
unit ------------------------------------------------------------------------------ 10
5.3. Replacement for the motor ass 51! --------------------------------- 17

1 Note

Page
5.9. Replacement for the traverse motor ass Sill. optical pickup
and spindle motor ass Sill ---------------------------------------------- 17
6 To Supply Power Source ----------------------------------------------------- 20
7 Schematic Diagram Notes ---------------------------------------------------- 21

8 Schematic Diagram ............
9 Printed Circuit Board Diagram

10 Type Illustration of ICS, Transistors and Diodes .................. 45
11 Wiring Connection Diagram .................................................. 46
12 Block Diagram ---------------------------------------------------------------------- 47
13 Terminal Function or |c5 ...................................................... 53

13.1. IC401 (M38504M6209F):

System Control ------------------------------------------------------------ 53
14 Replacement Parts List --------------------------------------------------------- 54
15 Cabinet Parts Location
16 Loading Unit Parts Locatlo

17 Traverse Unit Parts Location

Refer to the service manual for Model No. SA-DV170 (ORDER No. AD000511202) for information on Accessories and

Packaging.

2 Precaution of Laser Diode

Caution:

This unit utilizes a class 1 laser. Invisible laser radiation is emitted from the optical pickup lens when the unit is turned on:

1.Do not look directly into the pickup lens.
2. Do not use optical instruments to look at the pickup lens.

3. Do not adjust the preset variable resistor on the optical pickup.

4. Do not disassemble the optical pickup unit.

5. If the optical pickup is replaced, use the manufacture s specified replacement pickup only.

6. Use of control or adjustment or performance of procedures other than those specified herein may result in hazardous radiation
exposure.

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CLASS 1
LASER PRODUCT

(Back of product)

Page 61

SL-DV170

16 Loading Unit Parts Location

parts apply the specified greace to the
areas marked "xx" as shown in the

drawing.

NOte;When changing loading mechenism
Ref.No.

$7 325

Part No.
FiFKXEMaOL

346

Traverse Unit

Note : We do not supply those items of parts marked :3.

321 356

325
61

325 ->§

301