SHARP DV550X Repair Manual

$7.99

SHARP DV550X - It's a complete service manual, and it's in PDF format. It contains circuit diagrams ( schemas ) etc. It also usually contains parts catalog. After placing order we'll send You download instructions on Your email address. See below for delivery information

The manual is available only in language(s): English

Link to manual will be sent on Your email address after You place order.

This product was added to our catalog on Monday 07 May, 2007.

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Adam Solitro - 12/24/2007

Hi guys, Thank you for the fast and reliable service that your company offers. Great Work :)

Jacek Madej - 08/30/2008

Hi! love you!! schematics circuit best scan electronics area ...a have old radio grundig c8000 seek from net ... very done... hello best regard Edi from Poland

matt wilschke - 03/07/2008

Essential for popping the top open and cleaning and replacing what needs repalced. One note: the Ornamental Panel is attached with some adhesive as well as screws and faders so don't be shy about prying it open.

Jim Carrier - 08/02/2006

Outstanding and fast service! I received service manual in a moment after order. Thanks to this manual I can use my printer again!

Jeff Lewis - 07/24/2006

Received the Hitachi user manual. Happy happy happy! Thanks again.

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Click to see text excerpt from the manual

DV-500D/DV-550
DV-550W/DV-550X
FLOW CHART NO.10 SYSTEM CONTROL TROUBLESHOOTING(6)
The disc tray cannot be opened and closed.
Is the supply key signal(KEY-1) fed to pin(95) ofNoCheck lines between at AD connector and TB
IC504?connector.
Yes
No
Is the signal input from Pins (70), (69) of IC504 to
Check between IC701 and IC504.
Pins (2), (4) of IC701?
Yes
Check AT 8V line.
NoNo
Is the loading motor drive voltage output from Pins
Is 8V voltage applied to Pins (3), (8) of IC701?
(9), (7)of IC701?
Yes
Yes
Replace IC701.
No
Is the loading motor drive voltage applied to Pins
Check between IC701 and AG connector.
2, 3 of AG connector?
Yes
Is the voltage applied from AG connector toNoCheck between AG connector and mechanical
loading motor?relay PWB and between mechanical relay PWB
Yesand loading motor.
Check engagement of mechanism and gear and
check for damage.
FLOW CHART NO.11 FOCUS TROUBLESHOOTING(1)
Focus failure.
Remove the disc. Dose the optical pickup move upNoSee FLOW CHART NO.14 FOCUS TROUBLE-
and down?SHOOTING(2) Focus failure.
Yes
YesYes
Set the disc. Does the pin(27) of IC303 output theNoIs the input waveform at pins(57),(58),(59) and (60)
FE waveform?of IC303 present?
No
Is the output waveform at pins(17) and (18) of
IC301 present?
No
Check the connection of optical pickup cable.
If OK, optical pickup is defective.
FLOW CHART NO.12 FOCUS TROUBLESHOOTING(2)
Focus servo does not function.
No
Check lines between at pin(27) of IC303 and all
Is the FE waveform at pin(38) of IC707 present?
the way up thru to pin(38) of IC707.
Yes
NoCheck the power circuit line of IC707.
Is the output waveform output at pin(43) of IC707?
If OK, IC707 is defective.
Yes
Is the focus drive waveform output from pin(17) orNoIs the supply voltage of 8V fed to pin(21) of IC-
(18) of IC702?702? If OK, IC702 is defective.
Yes
Is the output waveform applied to pin(2) or (4) ofNoCheck lines between the AB connector and all
AB connector from IC702?the way up thru to IC702.
Yes
Check the connection of optical pickup cable.
If OK, optical pickup is defective.
10-3