Technics SLCH 510 Service Manual

Page 1

ORDER NO. ADQ407191CS

Service Manual

@fiOépr DIGIT/lL compact Disc Player

mmuuma MASH SL'CHS10

run-unsung hols. shaping

SB-CH5-10A 55.9H510A Colour
(K) ................ Black Type
SL-CH510 sr-cusm Area

Suffix for Area Colour

Model No.
Europe, Asia, Lalin

(E) America. Middle Near (K)

East and Africa and
Oceanla

Remote Control RS-CH51D SE-CHSl 0
Transmitter

Because of unique interconnecting cables,

when a component requires service, send System' SC-CH 51 D
or bring in the entire system. '

. RAEO113Z MECHANISM SERIES

Specifications
I Audio Notes:
lica ub h in utn t'ce.
DA converter 1 bit 2 DAC MASH SpeCI lions are 3' 186th c ange WI 0 0
Weight and dimensions are apmeImate.
I Pickup
Wavelength 780 nm

. I General . *1
H a k .
Dimensions (w x H x D) 270 x89 x266 mm MAS '5 a tradem ' Of NTT

Weight 1.9 kg
1
System Tuner/sound processor Compact disc player Amplifier Cassette Deck Speakers
SC-CH510 ST-CH51O 'SL-CH510 SE-CH510 RS-CHSlO 7:2 SB-CH51OA

.Made in PAES
.. Made In NABEL

:1: 2: For Europe ......
For olher areas

Technicsi

Page 2

SL-CH51O

I Contents

0 Handling Precautions .for Traverse Deck
0 Precaution of Laser Diode

0 Block Diagram
OAbout the Self-Diagnostic Mode
0 Location oi Controls .. 0 Automatic Adjustment Results Display Function
O Listening to Compact Discs . , I Troubleshooting Guide
0 Operation Check and 0 Function of lC Terminals .
Main Component Replacement Procedures ............ 0 Replacement Parts List
O Measurements and Adjustments 0 Cabinet Parts Location
OSchematic Diagram ............. O Loadiong Unit Parts Location .
0 Printed Circuit Board Diagram.
Owiring Connection Diagram .

17~19

NOTE:
Refer to the service manual for Model No. SE-CH51O (ORDER No. ADS407197C8) for information on Accessories, Stack-

ing the Components", Connections and Packaging".

I Handing Precautions for Traverse Deck

The laser diode in the traverse deck (optical pickup) may break down due to potential difference caused by static electricity of clothes
or human body. '
So, be careful of electrostatic breakdown during repair of the traverse deck (optical pickup).

, V ' bl ' t
0 Handling of traverse deck (optical pickup) (5320:5535 °'

1. Do not subject the traverse deck (optical pickup) to static elec-
tricity as it is extremely sensitive to electrical shock.

2. To prevent the breakdown of the laser diode, an anti-static
shorting pin is inserted into the flexible board (FPC board).
When removing or connecting the short pin, finish the job in as
short time as possible.

3. Take care not to apply excessive stress to the flexible board

Optlcal pickup

Lens (Do not touch)

FPC

(FPC board).
4. Do not turn the variable resrstor (laser power adjustment). It Be sure [0 short "113 mm
has already been adjusted. (Use me shorting pin or clip)
0 Grounding for electrostatic breakdown prevention on sunning
1. Human body grounding ' """" t r """" 3
Use the anti-static wrist strap to discharge the static electricity 5 E i 9 5
from your body. " ' '

2. Work table grounding
Put a conducive material (sheet) or steel sheet on the area
where the traverse deck (optical pickup) is placed, and ground
the sheet.
Caution:
The static electricity of your clothes will not be grounded through
the wrist strap. 80, take care not to let your clothes touch the
traverse deck (optical pickup).

iron plain or some metal:
to conduct olaclrlclly

I Precaution of Laser Diode

CAUTION: This product utilizes a laser diode with the unit turned "on", invisible laser radiation is emitted from the pick up lens.
Wave length: 780 nm
Maximum output radiation power from pick up: 100 pW/VDE

Laser radiation from the pick up unit is safety level, but be sure the followings:

1. Do not disassemble the pick up unit. since radiation from exposed laser diode is dangerous.
2. Do not adjust the variable resistor on the pick up unit. It was already adjusted.

3. Do not lock at the focus lens using optical instruments.

4. Recommend not to look at pick up lens for a long time.