Shopping cart is empty
 
English Polski Spanish 
Search For a Manual
 

(e.g. AA-V20EG JVC, ZX-7 Sony )
PayPal 1000+ rating Secure, Encrypted Checkout.
 
Who's Online
There currently are 302 guests online.
Categories
Information
Featured Product
Home >> SONY >> DE451 Service Manual
 
 0 item(s) in your cart 

SONY DE451
Service Manual


Tweet about this product and get $1.00 of store credit for instant use!
  • Contains Circuit Diagrams
  • Download
  • PDF Format
  • Complete manual
  • Language: English
Price: $4.99

Description of SONY DE451 Service Manual

Complete service manual in digital format (PDF File). Service manuals usually contains circuit diagrams, printed circuit boards, repair tips, wiring diagrams, block diagrams and parts list. Service Manual ( sometimes called Repair Manual ) is used mainly by technicians.

If You just want to know how to use Your tv, video, mp3 player etc. You should look for Owner's Manual. After placing order we'll send You download instructions on Your email address.

The manual is available in languages: English

Not yet ready
You must purchase it first

Customer Reviews
There are currently no product reviews.
Other Reviews
 V-909RX TEAC Service Manual by Sam Palermo;
This scanned manual is well done in that most all the pages except for one is straight and clear- the way I would do them. One page was upside down but that happens. For the money that is charged on this site you get a pretty good deal. Now with complex repairs, I still prefer to us paper manuals which I have to buy at stereomanuals but the one I got here was much less than the $45 he was charging but this is a larger than normal manual for three different units. I am a picky manual user because I have used original manuals from Sony and Teac.
 RC666 SIEMENS Service Manual by Gabriel Popa;
Very useful service manual, was exactly what i needed.Good quality,reasonable price.Thank you.
 SC-3330 SANSUI Service Manual by Marc LO BONO;
Acurate informations inside the SM and I could repair my old Sansui SC-3330 without any problems. Thanks.
 7045 NAD Service Manual by Marc LO BONO;
I used it to repair a NAD 7030, but unfortunately, the 7045 is different ! But documentation was useful.
 STR-4800 SONY Service Manual by Marc LO BONO;
Content A4 and A3 format pages. Exactly what I needed to restore my old receiver.

Text excerpt from page 9 (click to view)
Focus/Tracking Gain Adjustment A servo analyzer is necessary in order to perform this adjustment exactly. However, this gain has a margin, so even if it is slightly off, there is no problem. Therefore, do not perform this adjustment. Focus/tracking gain determines the pick-up follow-up relative to mechanical noise and mechanical shock when the 2-axis device operate. However, as these reciprocate, the adjustment is at the point where both are satisfied. • When gain is raised, the noise when 2-axis device operates increases. • When gain is lowered, it is more susceptible to mechanical shock and skipping occurs more easily. This adjustment has to be performed upon replacing any of the following parts : • Optical pick-up • RV503 (Focus gain) • RV502 (Tracking gain) Normally, be sure not to move RV503 (focus gain) and RV502 (tracking gain).
C598 C503 48 C108 TP547

– Focus Gain Adjustment – Procedure : This adjustment is not performed. If focus gain RV503 is turned, set to mechanical center. – Tracking Gain Adjustment – (perform at normal operation)
[MAIN BOARD] (Side B)

1. Place the optical pick-up level, horizontally. (If the optical pickup is not level, the 2-axis device will be weighted and adjustment cannot be done.) 2. Connect the oscilloscope between TP514 (TEO) and TP533 (VC) on the MAIN board. 3. Set the disc (YEDS-18) and Press the ^ (+) key. 4. Turn RV502 slightly clockwise (tracking gain drops) and obtain a waveform with a fundamental wave (waveform has large waves) as in Figure 5-1 . 5. Turn RV502 slowly counterclockwise (tracking gain rises) until the fundamental wave disappears (no large waves) as in Figure 5-2. 6. Set RV502 to the position about 30 °counterclockwise from the position obtained in step 5. If RV502 contact point is more than 90 ° counterclockwise from mechanical center, tracking gain is too high. In this case, readjust from step 4. 7. Press ^ (+) or = keys and observe the 100 track jump waveform. Check that no traverse waveform appears for both ^ (+) or = directions. (See Figures 5-3 and 5-4.) It is acceptable if the traverse waveform appears only now and then, but if it appears constantly raise tracking gain slightly and check step 7 again. 8. Check that there is no abnormal amount of operation noise (white noise) from the 2-axis device. If there is, tracking gain is too high, readjust starting with step 4. The waveforms are those measured with the oscilloscope set as shown below. • VOLT/DIV : 50mV • TIME/DIV : 5mS • Waveform when tracking gain lowered. Fundamental wave appears (large waves).
0V

TP514 (TEO) TP533 (VC)
TP102 FB101 D105 C105

C205

D804

oscilloscope (DC range)

Fig. 5-1 • Waveform when fundamental wave disappears (no large waves).
0V

807 C520

TP306

Q101 Q201 D205

Fig. 5-2 • Waveform when no traverse waveform during 100 track jump. (Brake application is smooth because of adjustment.)

C208 L502

TP302 TP202

FB302
FB201 R521 TP521 TP522TP515TP508

0V

TP507 Q501 C525 R512 TP514 R519 C514 TP503 C501 (TEO) R517 TP509 TP502 TP511 R501 TP533 0 TP534 TP512 32 30 25 C599 R504 (VC) C517 R505 TP523 1 TP506 24 11 C512 IC501 20 C505 TP513 TP504 5 (RFO) C510 C506 17 8 C513 TP540 R549 C504 L508 C571

R502

R503

Fig. 5-3
100 track jump waveform

• Waveform when no traverse waveform during 100 track jump. (Brake application is poor because of adjustment.)

0V

100 track jump waveform traverse waveform

Fig. 5-4

–9–

You might also want to buy

$4.99

D-E451 SONY
Owner's Manual

Complete owner's manual in digital format. The manual will be available for download as PDF file aft…
>
Parse Time: 0.169 - Number of Queries: 109 - Query Time: 0.026