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 233 guests online.
Featured Product
Home >> HITACHI >> CPX2102MS Service Manual
 0 item(s) in your cart 

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, German, French
Price: $4.99

Description of HITACHI CPX2102MS 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, German, French

Not yet ready
You must purchase it first

Customer Reviews
There are currently no product reviews.
Other Reviews
 AX-66BK JVC Service Manual by Timothy Hertz;
I liked the price plus it had everything i needed to service the tv. thankyou Tim Hertz
 PL-510A PIONEER Service Manual by salvatore sciuto;
The manual is excellent, well detailed, and divided into two parts. Received very quickly. Thank you.
 B6D41A PHILIPS Service Manual by Hubert Havenith;
a solid deal - quick and without any problems. I life in europe - with downloads no loosing time once again
 LC320EM82S EMERSON Service Manual by david terpstra;
got exactly what i ordered in a very timely manner. will use again for other manuals
 SA5360 TECHNICS Service Manual by Peter Sumsky;
I'm happy. Good quality. Very helped me with my work..............................

Text excerpt from page 31 (click to view)
7-2. OCP/F.B. terminal (pin 1) : Oscillator and constant voltage control circuit.
The Oscillator makes use of charging and discharging of C1 incorporated in the hybrid IC and generates pulse signals to determine the OFF-time of the MOS FET. The constant voltage control of a switch mode power supply is performed by fixing the OFF-time of the MOS FET (=50 sec.) and changing the ON-time in the PRC(Pulse Ratio Control) operation. Fig. 6 show how the oscillator works when the hybrid IC operates without control of constant voltage. When the MOS FET is on, the capacitor C1 is charged to the constant voltage (=6.5V). On the other hand, voltage drop (VR5) is caused in the OCP/FB terminal(pin 1) by the flow of drain current across R5. This voltage is the a sawtooth voltage like ID and almost the same voltage as applied to VR5 is applied to No. 1 terminal. When the No. 1 terminal voltage reaches the threshold voltage Vth(1)=0.73V, the Comp.1 operates and the comparator of the internal oscillator is reversed to turn off the MOS FET. When the MOS FET turn off, charging of C1 is released and C1 starts discharging by the internal resistor R1. C1 voltages decrease in accordance with the slope which is determined by the discharging time constants of C1 and R1. When C1 voltages decrease to around 3.7V, the oscillator output is reversed again and the MOS FET turns on. Then, C1 is quickly charged to around 6.5V. The MOS FET continues oscillation by repeating this operation. As described above, the time determined by the slope of VR5(ID) is the ON-time of the MOS FET. Also, the fixed time determined by C1 and R1 is the OFF-time of the MOS FET. The fixed time is adjusted at around 50 sec. by function trimming of R1.

Fig. 6 Oscillating operation of switch-mode power supply


You might also want to buy


Owner's Manual

Complete owner's manual in digital format. The manual will be available for download as PDF file aft…
Parse Time: 0.13 - Number of Queries: 112 - Query Time: 0.025