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 333 guests online.
Categories
Information
Featured Product
Home >> PHILIPS >> CDR779/00 Service Manual
 
 0 item(s) in your cart 

PHILIPS CDR779/00
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 PHILIPS CDR779/00 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:

Not yet ready
You must purchase it first

Customer Reviews
There are currently no product reviews.
Other Reviews
 2100 MARANTZ Service Manual by Mike van de Panne;
Super manual it contains all the things you need to service your Marantz 2100.
 NVMS1 PANASONIC Service Manual by Allan Walker;
A very easy to understand and use manual. Well worth the money.
 CT-20G11CU PANASONIC Service Manual by GERARD MILLER;
Very good information with clear drawings. Thanks!
 6X TANDBERG Service Manual by Fredric Weiss;
The ease of this purchase was a good start. The content of this manual was exactly all I needed to retore my Tandberg 64. All of the mechanical and electrical information is contained in the manual and the quality of the document makes reading the data easy. The exerience with the resource has made this my prime source for technical data.
 TA-1120A SONY Service Manual by Joe Black;
Owner-manuals.com is the best Possibility to give vantage HIGH CLASS Elektronic COMPONENTS a new Life.Thanks alot for your perfekt Service.

Text excerpt from page 59 (click to view)
GB 60

8.

CDR779

Faultfinding Guide
becomes reversed. This results in a current flow through the tranformerâs secondary winding via the diodes, electrolytic capacitors and the load. This current is also ramp shaped but decreasing. TimeDEAD phase : when the stored energy has been supplied to the load, the voltage from the secondary windings falls below the output voltage(held constant by the electrolytic capacitors) plus the threshold voltage of the diodes. The current in the secondary winding stops flowing. At this point, the drain voltage of the MOSFET is not yet zero because C2609 between drain and source contains a certain charge. This charge will start a sine-shaped ringing together with the transformerâs self-induction. The oscillator will start a next cyclus which consists of the described three phases. The time of the different phases depends on the mains voltage and the load. TimeDEAD is maximum at an input of 400VDC and minimum load, it will be zero at an input of 100VDC and overload.
V2 Vosc

capacitor at the Vcc pin will discharge because the primairy auxiliary voltage, coming from winding7-9 is below the Vcc voltage. At some moment during t2, the primary auxiliary voltages reaches the same level as Vcc. This primary auxiliary voltage now determines the Vcc voltage t3: regulation The output voltage of the power supply is in regulation t4: overload When the output is shortened, the supply voltage of the circuit will decrease and after some time drop below the lower threshold voltage. At that moment, the output will be disabled and the process of charging the Vcc capacitor starts again. If the output is still shorted at the next t2 phase, the complete start-and stop sequence will repeat. The power supply comes in a hiccup mode.

16V 12V 10V Vc2134 0V Vcc

V1 0

20mA Icc 1mA

Vcomp Vsense

Vgate
OUTPUT

Vdrain

short Vo 0 t1 t2 t3 t4

Idrain

Idiodes

Figure C : Start-up sequence
CL 06532151_020.eps 271100

Ton

Tdiode Tdead

CL 06532151_021.eps 271100

Figure 8-12 8.2.5 Regulation Figure 4 shows the most relevant signals during the regulation phase of the power supply. The oscillator voltage ramps up and down between V1 and V2. The voltage at the current sense terminal is compared every cycle with the output of the error amplifier Vcomp. The output is switched off when the current sense level exceeds the level at the output of the error amplifier. TimeON phase : A drain current will flow from the positive supply at pin 1 through the transformerâs primary winding, the MOSFET and Rsense to ground. As the positive voltage at pin 1 of the transformer is constant, the current will increase linearly and create a ramp dependent on the mains voltage and the inductance of the primary winding. A certain amount of energy is stored in the transformer in the form of a magnetic field. The polarity of the voltages at the secundary windings is such that the diodes are non-conducting. TimeDIODE phase : When the MOSFET is switched off, energy is no longer supplied to the tranformer. The inductance of the tranformer now tries to maintain the current which has been flowing through it at a constant level. The polarity of the voltage from the transformer therefore

Figure 8-13

You might also want to buy

$4.99

CDR779/00 PHILIPS
Owner's Manual

Complete owner's manual in digital format. The manual will be available for download as PDF file aft…
>
Parse Time: 0.159 - Number of Queries: 112 - Query Time: 0.031