English dropdown-ico

Manual Speco Technologies VM-1201

16 pages 0.39 mb
Download

Go to site of 16

Summary
  • Speco Technologies VM-1201 - page 1

    MODEL ： VM-1201 REVISION ： A0 DATE ： MAY. 21. 2001 DOCUMENT NUMBER ： SER VICE MANUAL ...

  • Speco Technologies VM-1201 - page 2

    W ARNING ========== For continuous protection against radiation, s hock and flame, replace only with same type and rating components specified in the approved sheets. Disclaimer Speco T echnologies makes no representation or warranties, either expressed or implied, with respect to the contents hereof and specifically disclaims any warranties, m erc ...

  • Speco Technologies VM-1201 - page 3

    2.4 VER TICAL DEFLECTION BLOCK.........................................……………………..………... 8 2.5 HORIZONT AL DEF LECTION BLOCK.............................……………………............……... 8 3. TROUBLESHOOTING INSTRUCTIONS............................................……………...…….….. 9 3.1 NO DISPLA Y , NO ...

  • Speco Technologies VM-1201 - page 4

    Audience This service manual is primarily for system / service engineers, distributors and dealers. It carries the assumption that the reader understands the basic operating concepts. Purpose This manual contains reference data for Speco T echnologies monitor . It gives information regarding the operating principles of monitors, as well as technica ...

  • Speco Technologies VM-1201 - page 5

    1.1.2 Signal Input Requirements ‧ Connector For CVBS ： BNC terminal T ype ： composite video input Level ： 1.0Vp-p Synchronous ： 0.3 V Luminance ： 0.7V Polarity ： Positive bright Impedance ： 75 ohms 1.1.3 Power Input Requir ements ‧ Operating V oltage Range ： 90 ~ 264 V AC at 50 / 60 ± 3Hz ‧ Input Current at 90 V AC Operating ...

  • Speco Technologies VM-1201 - page 6

    • • • • • T emperature ： 25 ± 5 ℃ Magnetic field ： No additional magnetic field in near side AC line Input ： 100 ~ 240 V AC ± 10%, 50/60 ± 3Hz W arm-up T ime ： 30 minutes min. after power on and signal applied Ambient light ： 400 to 600 lux. 1.2.1 Display Quality ‧ Display area (monoscope pattern) ： full scan ‧ V ideo ...

  • Speco Technologies VM-1201 - page 7

    ‧ Picture geometry ：≦ 2.5% ‧ Picture centering ：≦ 6mm ‧ Size stability ： Picture luminance from 5 FL to max., the size shall be less than 2.5% (with full white pattern) ‧ Swing and jitters ： Swing and jitters are not allowed (viewed at 50cm from eyes to screen). ‧ Focus ： (viewed at 50cm from eye to screen, contrast adjusted ...

  • Speco Technologies VM-1201 - page 8

    This section describes each functional block of the monitor . 2.1 Main Power Supply Block • • • • • • • • • • • • AC power input ： AC socket Line input noise / EMI filtering ： Line filter T902 ; X-Cap C901, C902. Y -Cap C903, C904, C905. Over current protection ： Fuse Power on/of f control ： Power switch AC to DC con ...

  • Speco Technologies VM-1201 - page 9

    • • • • • • Snubber circuit ： Snubber C907, D902, R902. Primary side self-powering circuit ： D903,C914. Output 13.5 volts for vertical & horizontal drive circuits ： D904, C915. Output 27.5volts for horizontal deflection circuit ： D906 ,C916. 2.2 V ideo input block Signal input buffering and switch ‧ CVBS Input buf fer ： ...

  • Speco Technologies VM-1201 - page 10

    black level is stored at pin7 by C404. The slici ng level is stored at pin6 by C403 and decided by R403. 2.3.4 Phase detector: The phase detector circuit is connected to pin8. The circuits are activated depending on the voltage of pin18 and the state of the Sync pulse noise detection circuit, C405, C406, R405. 2.3.5 Supply (pin9, 10 and 16) : U401 ...

  • Speco Technologies VM-1201 - page 11

    • • • • Flyback generator ： ‧ U301 pin6 is the output of the flyback generator that when driven, jumps from low to high condition C305 transfers the jump to pin3 V ertical size control ： VR301, R312, R308. 2.5 Horizontal Deflection Block Horizontal drive buf fering ： Driving source-U401 pin11. Driving transistor -Q40, to pull high t ...

  • Speco Technologies VM-1201 - page 12

    3.1.5 If driving pulses at U901 pin6 and drain of Q901 are correct but voltage at U901 pin 7 low than threshold voltage --causing U901 to stop and restart periodically , check and repair following circuits. Power transformer T901 bad; D903 short-circuit/opened. 3.2 No Display , power output normal. 3.2.1 Check and fix FBT B+ ： If no B+ （ 27.5V ...

  • Speco Technologies VM-1201 - page 13

    Appendix A. Spar e Parts List Location Parts Number Description F901 28-1 100-0006 Fuse, 2A/250V , slow blow D901 06-3100-0005 Diode 3A, 600V , RS407 D902 06-1 100-0001 Diode, 1.5A, 800V , BA159 D501, D502 06-1 100-0023 Diode, 3A, 800V , FR107 D903, D904, D301 06-1 100-0014 Diode, FR1005 D906, D401 06-1 100-0058 Diode, 2A, 600V , FR205 Q901 08-3100 ...

  • Speco Technologies VM-1201 - page 14

    Appendix B. Schematics and PCB Layout Diagram 1. Schematics Page 1 -- Main Board, V ideo Board. 2. Schematics Page 2 – Power Supply , Video Amplifier 3. PCB Layout -- V ideo Board, Cir cuit T race 4. PCB Layout -- Main Board, Silk Screen 13 ...

  • Speco Technologies VM-1201 - page 15

    1234 56 A B C D 6 5 4 3 2 1 D C B A Title Number Revis ion Size B D a t e : Sh ee t o f F i l e : G2 5 G4 7 K 2 HGND 4 HEAT 3 G1 1 6 J501 CRT SOCKET VR501 2MB R515 330K R6 4.7 1/4W 1 2 3 W204 C210 47U/200V R225 680K R222 8.2K 2W R223 1.5K 1/2W R224 150K C214 1U/25V 1 2 3 W205 R221 1K Q205 2SC2688 C217 47U/25V B+ 12.9V S201 SP ARK GAP PLU G AC SO CK ...

  • Speco Technologies VM-1201 - page 16

    123456 78 A B C D 8 7 6 5 4 3 2 1 D C B A Title Number Re vision Size D a t e : F ile: D r a wn B y : 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 U401 TDA2579 C411 103 R217 15K R410 2.2K R406 18K R416 680 Q402 2SC1815 R417 1K C407 100U/25V R418 47 Q401 IRF740 R408 12K C408 1U R411 33K C410 .15 C409 2700P R411 30K VR401 H-HOLD R409 270 C416 22U/50V ...

Manufacturer Speco Technologies Category Computer Monitor

Documents that we receive from a manufacturer of a Speco Technologies VM-1201 can be divided into several groups. They are, among others:
- Speco Technologies technical drawings
- VM-1201 manuals
- Speco Technologies product data sheets
- information booklets
- or energy labels Speco Technologies VM-1201
All of them are important, but the most important information from the point of view of use of the device are in the user manual Speco Technologies VM-1201.

A group of documents referred to as user manuals is also divided into more specific types, such as: Installation manuals Speco Technologies VM-1201, service manual, brief instructions and user manuals Speco Technologies VM-1201. Depending on your needs, you should look for the document you need. In our website you can view the most popular manual of the product Speco Technologies VM-1201.

Similar manuals

A complete manual for the device Speco Technologies VM-1201, how should it look like?
A manual, also referred to as a user manual, or simply "instructions" is a technical document designed to assist in the use Speco Technologies VM-1201 by users. Manuals are usually written by a technical writer, but in a language understandable to all users of Speco Technologies VM-1201.

A complete Speco Technologies manual, should contain several basic components. Some of them are less important, such as: cover / title page or copyright page. However, the remaining part should provide us with information that is important from the point of view of the user.

1. Preface and tips on how to use the manual Speco Technologies VM-1201 - At the beginning of each manual we should find clues about how to use the guidelines. It should include information about the location of the Contents of the Speco Technologies VM-1201, FAQ or common problems, i.e. places that are most often searched by users in each manual
2. Contents - index of all tips concerning the Speco Technologies VM-1201, that we can find in the current document
3. Tips how to use the basic functions of the device Speco Technologies VM-1201 - which should help us in our first steps of using Speco Technologies VM-1201
4. Troubleshooting - systematic sequence of activities that will help us diagnose and subsequently solve the most important problems with Speco Technologies VM-1201
5. FAQ - Frequently Asked Questions
6. Contact detailsInformation about where to look for contact to the manufacturer/service of Speco Technologies VM-1201 in a specific country, if it was not possible to solve the problem on our own.

Do you have a question concerning Speco Technologies VM-1201?

Use the form below

If you did not solve your problem by using a manual Speco Technologies VM-1201, ask a question using the form below. If a user had a similar problem with Speco Technologies VM-1201 it is likely that he will want to share the way to solve it.

Copy the text from the picture

Captcha
New picture

Comments (0)