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 313 guests and 
2 members online.
Categories
Information
Featured Product
Home >> PHILIPS >> FWC700/22 Service Manual
 
 0 item(s) in your cart 

PHILIPS FWC700/22
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 FWC700/22 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
 EVOLUTION REVOX Service Manual by Sergey Yakushenko;
Excellent, fast delivery, excellent product. Good luck!
 DP-86DA MITSUBISHI Service Manual by Sam Kapasi;
This manual is for the usa model only. But it is clear , accurate and comprehensive, including board layouts and schematics. I found it extremely useful for my mitsubishi dp-86da, but the same diagram would also work for the realistic lab5000 and hi fi 80. Thanks.
 TYPE 2904 BANG&OLUFSEN Service Manual by Wayne Ezyk;
Great to have extra resources for Service Manuals, Now days you can really not trouble shoot efficiently without one , Wayne at IRIONS TV & ELECTRONICS REPAIR Clearwater , Fl. 33755 727-446-7955
 A-103 TEAC Service Manual by Mike Dunn;
For five bucks you can barely buy a hamburger. Or for the same five bucks you can buy a service manual. Much more useful. (and better for your health, depending on where you buy your hamburgers). Yes, there are free manual sites out there, but if they don't have what you want, you have to pay. And five bucks isn't much. Not for full specs, schematics and adjustment and parts replacement procedures. My only criticism is that grayscale illustrations aren't well rendered, but I've seen worse. Schematics and text are clear. I'll be happy to purchase from here again. Mike mikeinthemountains@gmail.com
 CJV55 PIONEER Service Manual by Joseph Dulick Jr;
Impressively thorough. Even the simple operators manual helped me "fix" one of the 2 CD players in the unit. This unit reads CD's from the top so they should be installed in the magazines "upside down" from typical CD players. The CD player service manual helped me unjam a stuck carriage because somebody transported the box laying down loaded with CD's. A little lens cleaning & the player now works well! Thanks for you help at a great price! Joe

Text excerpt from page 61 (click to view)
9A-3

9A-3

Brief introduction
General 1. Playback Mode Signal from the playback head Deck A or Deck B is selected and fed through by the Mode Selector IC7710 (HEF4952BT). The signal is amplified by amplifier IC7720 (AN7323S) before feeding to the IC7740 (HEF4952BT) and out to the AF Board via connector 1701. 2. Recording Mode Recording Signal is selected and fed through by the Mode Selector IC7710 (HEF4952BT) which is then amplified by the amplifier IC7720 (AN7323S). The amplified output signal will pass through IC7730 (HEF4952BT) for record equalization and back to IC7710 (HEF4952BT) before registered into the Rec/PB Head of Deck B. 3. Dubbing Mode In Dubbing mode, signal from the playback head Deck A is selected and fed through by the Mode Selector IC7710 (HEF4952BT) which is then equalised for playback mode by the amplifier IC7720 (AN7323S) so that a flat response is obtained after the pre-amp. The equalised signal will then follow the same path as in the Recording mode. 4. Mode Selector The Mode Selector IC7710 (HEF4952BT) caters for 4 inputs signal, namely Playback Signal from Deck A, Playback Signal from Deck B, Recording Signal and Dubbing Signal. Amplifier PB/REC Amplifier IC7720 (AN7323S) is for the purpose of amplifying the Playback and Recording signal from the Mode Selector. Automatic Level Control (ALC) ALC circuit consists of resistors (3760, 3765, 3766, 3767), capacitors (2762 , 2763) and control by transistor 7787 (BC847B). ALC limits the amplifier output to a constant value when input signal becomes too large, thus limiting recording current to below saturation level, to prevent recording distortion. 18. Amplifier IC7640 (NJM4560M) 7. Muting Circuit (For Non-Dolby version only) Switch S4 of the IC7740 (HEF4952BT) is for the purpose of muting the output during Recording mode. During Recording mode, S4 is closed and shorted to the ground. 8. IC7740 (HEF4952BT) The function of the IC7740 (HEF4952BT) is to change time constant between 120us Ferro (IEC I) and 70us Chrome (IEC II) during playback mode. It will automatically determined whether the tape type is 120us Ferro (IEC I) or 70us Chrome (IEC II). This IC will switch to Flat Gain during the Recording mode. 9. IC7730 (HEF4952BT) The function of the IC7730 (HEF4952BT) is to change gain and time constant according to tape type and recording speed to boost recording current at higher frequency during recording to compensate for head loss. It will automatically determined whether the tape type is 120us Ferro (IEC I ) or 70us Chrome (IEC II). 10. Bias Level Bias Level making use of the Variable resistor (3773) for adjusting the optimal level of the bias current for Ferro or Chrome. 19. Muting Circuit The muting circuit which consists of transistors 7788, 7789 and 7790 (BC847B) is for the purpose of muting the output during Recording mode. The Amplifiers 7640A & 7640B (NJM4560M) in the Dolby circuit is for the purpose of amplified the Recording signal.

13. Motor Speed (For FR versions only) During High speed dubbing, a feedback signal from the uP through pin 03 of the IC7610 (HEF4094BT) will trigger the transistors 7622 (BC847B) and 7616 (BC857B) to cause a change in the voltage level between High and Low, thus changing the speed of the motor. 14. IC7610 (HEF4094BT) IC7610 (HEF4094BT) is a Shift Register use for issues the logic for cmos switch ICs (HEF4952BT) via 1A0, 2A1 and 2A2. It also issues logic to On/Off SOL_A, SOL_B and MOT. Recording speed is controlled via NS/HS.

Dolby Circuit (For sets with Dolby B NR version only) 15. IC7630 (CXA1551M) IC7630 (CXA1551M) in the Dolby circuit is a Dolby Noise Reduction Type B IC for the Playback and Recording signal. Noise Reduction ON/OFF are controlled by DOLBY, which is from CLK, direct from uP. After clocking in DATA, CLK is set to HIGH/ LOW for NR OFF/ON. 16. 19kHz Filter The 19kHz filters 5631 & 5632 (LXD-210) in the Dolby circuit is for the purpose of filtering the 19kHz Pilot Tone (for Tuner signal only) of the Recording signal. 17. Level Adjust

5.

6.

The Variable resistor 3635, 3636,3641 and 3642 in the Dolby circuit is for adjusting the playback level of the Dolby reference (400Hz , 200nWb/m). Transistor 7631, 7632 are ON to enable adjustment of 3641, 3642 during Playback Deck A. Transistor 7633, 7634 and 3635, 3636 are active for Playback Deck B.

NOTATIONS & ABBREVIATIONS USED IN THIS DOCUMENT CR Chrome (IEC type II) DB DD DM FE FF FR Gnd x HSD ND NR NSD PB REC S/A SD SM Dolby NR type B Double Deck Double Motor Ferro (IEC type I) Non-Autoreverse Autoreverse Deck B Ground x High speed dubbing Non Dolby Noise Reduction Normal speed dubbing Playback Record Sub-assy Single Deck Single Motor

11. Bias Symm (For Dolby B NR version only) Bias Symm making use of the Variable resistor (3785) to adjust the bias current for the left and the right channel to be equal. 12. PB Switch Playback Switch which consists of the FETs 7785 (For Dolby B NR version only) & 7786 (J111) is for the purpose of providing a virtual ground for the Rec/PB Head (Deck B) during Playback mode. During the Playback mode, the FETs are turn on and shorted pin 2 and 4 of connector 1720 to the ground. During Recording mode, the FETs are turn off to allow the oscillator signal to be superposition onto the Recording signal for recording.

You might also want to buy

$4.99

FW-C700/22 PHILIPS
Owner's Manual

Complete owner's manual in digital format. The manual will be available for download as PDF file aft…
>
Parse Time: 0.126 - Number of Queries: 109 - Query Time: 0.024