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Modern Monitor Circuits & Fault Finding (vol 1)
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Modern Monitor Circiuts & Fault Finding (vol 3)
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Title: Modern All About Monitor
Author: Manahar Lotia, Pradeep Nair
Number of pages: 180
Edition: 1995
Language: English
Table of Contents
Chapter 1 – Introduction to Monitor
a. Monitor Basics
   • Pixels • Resolution • Raster Graphics • Interlacing
   • Non-interlaced Display • Frame Rate • Video Bandwidth
   • Synchronizing Signals (Horizontal Scanning Frequency) &
     (Vertical Scanning Frequency)
b. Picture Tube
    • Monochrome CRTS • Magnetic Deflection • Resolution
    • Shadow Mask •Slot Mask (Aperature Grille) • Screen Curvature
    Screen Size and Image Size  Aspect Ratio  Image Control
c. Display Basics
     Character Mapping  Character Boxes (Character Attribute)
 Block Graphics  Bit-Mapped Graphic (Graphic Attributes)
     Video Page  Television as monitor  Video Controller
     Graphic Co-Processors  True Resolution
Chapter 2 – Video Display Hardware
      Text Mode and Graphic Mode
a. Adapters and Displays
      Video Cards/Display Card  Card Basics
      Display Standards and Compatibility 
      Memory Required by Your Video Board?
b. Monochrome display adapter (MDA, 12/08/81)
c. Colour Graphics Adpater (CGA, 12/08/81)
d. Hercules Graphics Card (HGC, 1982)
e. Enhanced Graphics Adapter (EGA, 10/09/84)
f. Professional Graphics Adapter (PGA, 10/09/84)
g. Digital vs Analog
h. Video Graphics Array (VGA, 02/04/87)
i. Super VGA
j. VGA and TV (PAL)
k. 8514/A Display Adapter
l. Extended Graphics Array (XGA, 30/10/90)
m.Monitor Types
Digital and Analog Monitors
n. Dual Display Adapt
o. Monochrome
TTL Monochrome Composite Monochrome •VGA Monochrome
Multiscanning Monochrome
p. Colour Monitors
Composite Colour RGB Enhanced RFB VGA Monitor
Multiscanning Colour Display
q. Paper-white Monitor
r. Sizing Problem
s.Special Purpose Monitor
Laptop Display (LCD Display, Gas-Plasma Display, Dual Monitor Systems)
A4 (Full page) /A3 Display
Video Speed
t. Video Speed
8-bit vs 16-bit Video Ram (VRAM) Copying BIOS to RAM and Shadow RAM Intelligent Video Adapters Video Accelerators
Local Bus Video Faster Drivers
u. Monitor Affects Our Health
X-Radiation Ultraviolet Radiation ELF Radiation Effect on Eye (Anti-glare system)
v. Upgrading/Buying New Display System
Upgrading Display Adapter (How to remove PC’s Cover, Installation of a Video Adapter, How to Replace PC’s Cover)
Upgrading a Monitor
Buying a Monitor (Compatibility, CRT Quality. Flicker and Snow
Pincushioning/Barrel Distortion)
w. Monitor Care
Monitor CleaningPreventing Phospohr Burn-in in Monitors
tecnical repair book

Chapter 3 – Monitor Servicing & Video Troubleshooting
a. Display Problem
b. CRT Controller – Motorola 6845
c. CRTC 6845 Pin Description
ProcessorCRT Control Display Memory and Character generator addressing Other Pins
d. CRTC 6845 Internal Register
e. Monochrome Display Adapter
f. Composite Monochrome Monitor
Service Information ( Brightness, Vertical Adjustments, Horizontal AdjustmentsDeflection yoke assembly adjustment, Focus adjustment) g. Circuit Description Video Amplifier Drive and Output Sync Separation Pedastal Clamp Circuit Horizontal Processor Circuit Vertical Processor Circuit Horizontal Output/Transformer Blanking Clip h. Troubleshooting
Chapter 4 – Introduction to Computer
a. Computer System
     Computer Hardware (Central Processing Unit(CPU), Peripheral Devices)
     Computer Software
     Computer Liveware (Humanware)
b. Working of a Computer System
c. Parts of a Computer System
     System Unit (Main Case)
     Outside Main Unit (indicators (LED), Power-on LED, Hard disk Activity
      LED, Turbo Mode LED, Switches, Power-on Switch, Reset Switch
      Turbo Switch, Key Lock)
d. Inside Main Unit
Power Supply
Motherboard (CPU or Microprocessor, Memory, RAM, ROM Cache Memory, Virtual Memory, Expansion Slots)
Storage Device (Floppy Disk, Hard Disk, Physical Information of a Hard Disk
Input Devices ( Keyboard, Mouse, Scanner)
Output Devices (Monitor/Visual Display Unit (VDU), Printers)
e. Connecting Cables to Computer
The power cord The keyboard cableThe printer cable
Monitor cable
f. Operating System
Operating System (OS) (Memory Management, CPU Management
Disk Management, Input/Output (I/O) Management, User Interface)
g. Introduction to DOS
System Floppy and Files
Disk Organisation
h. Switching on Computer
i. Working with your Computer
j. DOS Commands
Internal Commands (Directory (DIR), Wildcard Characters)
External Commands (Format, Diskcopy)

 

 


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Title: Modern All About Printers
Author: Manahar Lotia, Pradeep Nair, Bijal Lotia
Number of pages: 352
Edition: 1996
Language: English

Table of Contents

Chapter 1 - Printers
a. Image Formation Method
b. Printing Mechanism
Impact Printers Non-Impact Printer
c. Some Common Printers
Daisy – Wheel Printer Chain PrinterDrum Printers Dot-Matrix
Color Dot-Matrix Printer Inkjet Printer Color Inkjet Laser Printers
Thermal Printers LCS and LED printers Chapter 2 - How Printer Work a. Dot-Matrix Printer b. Inkjet Printer c. Thermal Printer d. Color Thermal Printer e. Paper Handling Friction Feed Automatic Sheet Feeder Roll Feed Pin-Feed and Tractor Feed Paper Control
Chapter 3. Working of a Laser Printer
a. Introduction 
b. Image Formation System
 Photosensitive Drum  CLEANING of the OPC Drum
 CONDITIONING of the OPC Drum 
     WRITING of image on the OPC Drum
  DEVELOPING of the image on the OPC Drum         
  TRANSFER of the image on the OPC Drum
  FUSING of the image (OPC Drum to the paper) 
c. Paper Pickup / Feed system 
 Paper Path         
d. Mechanical Drive 
e. Machine Control System 
f. Interface system 
g. Power Distribution  


Chapter 4 - PC-Printer Interface
a.  Plain ASCII Data
b. Printer Control Code/Escape Code/Embedded Commands
Diablo/QUME Printer Control Codes Epson/IBM Printer Command CodeColor Command Epson 24-pin CommandsLaserjet Printer Control Code Graphic Bit Image Data
c. Page Description Language (PDL)
Postscript Postscript Level-2 HP-PCL (Printer Control Language)
d. Printer Sharing
Chapter 5 - Serial-Parallel Interface
a. Parallel Interfacing
Uni & Bi-Directional Parallel Port  History of Parallel Port
     Parallel Connectors  Port Address  Register Function
     Parallel Port Signal  Parallel Port Performance
b. Serial Interfacing
     Synchronous Communication Asynchronous Communication
    Parity Bits  Serial Hardware ( 8250-16550A, Chipsets)
     Upgrading 16450 to 16550  Serial Interface Connectors 
     Bits Rates  Serial Port Address  Serial Port Register Function  Interrupts  Serial Port Signal  A Communication Session
Chapter 6 - Printer Consumables
a. Paper
b. Envelopes
c. Adhesivelables
d. Overhead Transparencies

Chapter 7 - Fronts/Typefaces
a. Typeface vs Front
    Point Size Stroke weight Type Style
b. Parts of a Typeface
c. Types of Typeface
     Serif  Sans Serif  Display
d. Different Typeface Formats
     Bit-Mapped/Raster  Vector/Stroke Typefaces  Outline Typefaces
     POSTSCRIPT/Type-1 Front  PCL  TrueType
e. Expert Character Set
f. Points for Better Typography
     Typeface  Size/Leading  Hyphenation/Justification/Alignment
     Word spacing  Letter spacing  Hyphenation  Tracking  Kerning      
g. Adding Typefaces
 Front Cartridge  Downloadable Front
h. Window Character Set
 ANSI Character Set  OEM (IBM) Character Set

Chapter 8 - Choosing/Upgrading/Performance Boosting
a. Reasons to Upgrade a Printer b. Buying a Printer
c. Upgrading the Printer 
     Removing the old Printer  Connecting the new Printer
d. Performance Boosting
 Hardware Print Spooler  Software Print Spooler  MS Windows Print Manager
e. Adding Fonts under Windows 
    Adding TrueType fonts  Adding Type-1 fronts
f. Adding Memory to Your Laserjet Printer
    Installation instructions
g. Adding a Postscript Cartridge to your Laserjet Printer
    Installation Instructions
h. Installation a color Inkjet Printer  Installation Instructions
printer repair book

Chapter 9 - Troubleshooting
a. Preventive Maintenance
b. Troubleshooting
c. Troubleshooting Dot-Matrix Printers
Printer not printing properly/Printer does not  print at all Printer does not work; dead printer
After printing some characters, printer stops
    Non-uniform printing density/Printing is faint
Printing is uneven or intermittent
A black/white horizontal line along each line/Missing dots during printing
READY light on the control panel flickers, nothing is printed
ON LINE light on the control panel flickers, nothing is printed
Alternate lines are printed backwards Texts is printed but output is mixed-up
Self-test pattern is not proper Printer does not print during self-test
Print styles changes during printing Printers does not change to the correct mode
Part of the text or complete text is printed in italics or as graphics
Some characters are not printed properly Horizontal tabs are not printed properly
Full page width is not printed Printer prints wider than the paper width
Strange dot patterns appear in a graphic printout
Printer stops while printing graphics Text appear as random graphics characters
Difficulty in paper loading Printer runs out of paper when printing a long document
Irregular or No paper feed Label gets stuck on the roller
Printout contains blank lines or all lines appear in one line
“Printer not ready” or “No paper” message is displayed by the computer
“No print is connected” is displayed by the computer
Some program that use printer, when started stops the computer
Change in the DIP switch settings is ignored BASIC language CR, LF problem Problems with screen dumps
Carriage does not move after power-on No ribbon feed
End of paper is not sensed and printing continues without paper
Control panel switches (FF, LF, ONLINE, etc) not working
White horizontal lines in the graphic printout Vertically shaky image
d. Printer Interface problems
Loopback/Wrap Plug Tests
Diagnosing Serial Communication Problems
(Port Conflict, Interrupts Conflict, Check Handshaking Signals, Disappearing Character, Device Timeout Error)
Chapter 10 - Laser Printer Troubleshooting
a. System Test
     System Self-Test  Engine Test  The Service Test  HP IIIP Service Mode
b. Printer Message
 Printer Status Messages  Printer Attendance Messages
     Printer Error and Service Message
 c. Image Defects
     Blank Page  Black Page  Faint Print  Vertical White Lines
     Vertical Black Lines  Faulty Registration  Horizontal Black Lines
     Smeared Print  Repetitive Defects  Image Skew
     Improperly Sized Image  Character Voids  Background
     Ghosting  Back of Page Dirty  Paper Curl
Chapter 11 - Plotters
a. Plotter size
b. Types of Plotters
c. Single Pen & Multiple Pen Plotters
     Advantage of Multiple Pen Plotter  Drawback of Multiple Pen Plotter
d, Flatbed and Drum Plotters
 Flatbed/Drum/Electrostatic/Thermal/Laser/Pencil Plotters.
e. Plotter Control Language
f. Paper for the Plotter
g. Pen for the Plotter
h. Plotter Installation

Chapter 12 - Some DOS Commands
a.Graphics
b.Print
c.Mode
Configure Parallel Printer Configure Serial Port Mode (Redirect Printing)
Mode (Display Device Status)
Chapter 13 - Programmers Reference & BIOS Error Codes
     Some Important BIOS Data Area  BIOS Interrupts  Interrupt 05h (Print Screen)
 Interrupt 0Bh (Serial Port 2)  Interrupt 0Ch (Serial Port 1)
 Interrupt 0Fh (Parallel Port)  Interrupt 14h (Serial Communication)
 Interrupt 17h (Parallel Printer Interface)  Interrupt 21h (DOS Services)
 Interrupt 02h (Multiple Interrupt)
a. BIOS Error Codes
 IBM BIOS Error Beep Code (9xx-Parallel Printer Adapter Error Codes
       10xx-Alternate Parallel Printer Adapter Error Codes, 11xx-Serial (COM1:) 
       Communication Error Codes, 12xx-Serial (COM2:, COM3: and COM4:) 
       Communication Error Codes, 14xx-Parallel Adapter/Matrix Printer Error, 
       15xx-SDLC Communication Adapter Error, 20xx-BSC (Binary Synchronous 
       Communication) Adapter Error, 21xx-Alternate BSC Adapter Error, 
       29xx-Color Matrix Printer Error 33xx-Compact Printer Error,
       51xx-Portable Printer Error, 76xx-4216 Page Printer Adapter Error)
14.  Appendix - A
15. Appendix - B
16. Index
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Title: Modern Monitor Circuits & Fault 
          Finding (Volume III)
        Author: Manahar Lotia 
        Number of pages: 16
        Edition: 1995
        Language: English

Table of Contents
Chapter 1 - Introduction to Monitor
Chapter 2 - BPL ER-40
         Dual Display (CGA/HGA) Monochrome Monitor using IC 
         SN7407N, TDA1170N, 6 Transistors & IC L200C in Regulated 
         Power Supply.
         * Circuit Diagram and Fault Finding
         * PCB Layout and Fault Finding
Chapter 3 - HCL (TRL Type)
         Dual Display MDA(HGA)/CGA Monochrome Computer
         Monitor using IC SN7407, TDA1170N, MC1391P, 15 Transistors
         and Opto-Couple 4N35 in SMPS Power Supply.
         * Circuit Diagram
         * Complete Fault Finding
Chapter 4 - Microtek (M-TEK) VGA
         VGA Monochrome Computer Monitor using IC EMC2000 413,
         LM1201N, MC1391, TDA1170 AND IC UC3842N in SMPS 
         Power Supply.
         * Circuit Diagram and Fault Finding
         *PCB Layout and Fault Finding
Chapter 5 - Monochrome
         Monochrome Computer Monitor using IC SN7407, 
         TDA1170N, 6 Transistors and IC SGS88648 in Regulated 
         Power Supply.
         * Circuit Diagram and Fault Finding
         * PCB Layout and Fault Finding
       
monitor repair book

Chapter 6 - Samsung VGA Colour
       VGA Colour Computer Monitor using IC KS74HCTLS86N, 
       TC4052BP/MC14052, TDA2593, TDA2653A, 3 x CA3046
       in Video Board and STR54041S in SMPS Power Supply.
       * Circuit Diagram
       *Complete Fault Finding       
Chapter 7 - TVM MD-7 VGA Colour
         VGA Colour Computer Monitor using IC TBP26542N/74S472N, 
         HA11235 and HA17624          
          in SMPS Power Supply.
         * Circuit Diagram
         * Complete Fault Finding
Chapter 8 - Vintron VGA
         VGA Monochrome Computer Monitor using IC HS74LS86P, 
         HA17555, MC1391, TDA1170N and SMPS Power Supply.
         * Circuit Diagram and Fault Finding
         * PCB Layout and Fault Finding
Chapter 9 - Wipro-NW
         Monochrome Computer Monitor using IC SN74136N, TDA1170N, 
        10 Transistors and IC IP338K8744 IN regulated Power Supply.
         * Circuit Diagram and Fault Finding
         * PCB Layout and Fault Finding
       
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Title: Modern Monitor Circuits & 
          Fault Finding (Volume 1)
        Author: Manahar Lotia, 
        Number of pages: 16
        Edition: 1995
        Language: English

Table of Contents
1. Introduction to Monitor
2. Circuit Diagram of Microtek 14” Monochrome “VGA”          
         Monitor Model: A1418T using IC EMC 2000 413, 
         TDA1175, LM1201N, LM1391N, 11 Transistors and 
         Switched Mode Power Supply Using FET 2SK371 & IC 
         UC3842N
3. PCB Layout of Microtek 14” Monochrome “VGA” 
         Monitor Model: A1418T using IC EMC413, TDA1175,
         LM1201N, LM1391N, 11 Transistor and Switched Mode
         Power Supply Mode Using FET 2SK371 & IC UC3842N
4. Complete Fault Finding of Microtek 14” Monochrome 
         “VGA” Monitor Model: A1418T using IC EMC2000 413, 
         TDA1175, LM1201N, LM1391N, 11 Transistors And 
         Switched Mode Power Supply Using FET 2SK371 & 
         IC UC3842N
5. Complete Fault Finding of TRL Monitor using IC SN7407,
         TDA1170N, MC1391P, 15 Transistors and IC 4N35 in 
         Switched Mode Power Supply
6. PCB Layout of TRL Monitor using IC SN7407, TDA1170N, 
         MC1391P, 15 Transistor and IC 4N35 in Switched Mode 
         Power Supply
7. Circuit Diagram of TRL Monitor using IC SN7407, 
         TDA1170N, MC1391P, 15 Transistor and IC 4N35 in 
         Switched Mode Power Supply
8. Circuit Diagram of PCL Monitor using IC 74SL125A, 
         SN7407N, TDA1170S, 11 Transistor and IC 4N25 in 
         Switched Mode Power Supply
9. PCB Layout of PCL Monitor using IC 74SL125A, 
         SN7407N, TDA1170S, 11 Transistors and IC 4N25 in
         Switched Mode Power supply
       
monitor repair book

10. Complete Fault Finding of PCL Monitor using 
       IC 74SL125A, SN7407N, TDA1170S, 11 Transistors and 
       IC 4N25 in switched Mode Power Supply       
11. Complete Fault Finding of TRL Monitor using
         IC SN7407, TDA1170, MC1391P,15 Transistor, and IC 
         4N35/25 in Switched Mode Power Supply
12. PCB Layout of TRL Monitor using IC SN7407,
         TDA1170, MC1391P, 15 Transistor and IC 4N35/25 in 
         Switched Mode Power Supply
13. Circuit Diagram of TRL Monitor using IC 
         SN7407, TDA1170, MC1391P, 15 Transistor  and IC 
         4N/35/25 in Switched Mode Power Supply
14. Circuit Diagram of Monitor using IC SN7407N,
         7486, TEA2037, 12 Transistors and IC 4N35 in 
         Switched Mode Power Supply
15. PCB Layout of Monitor using IC SN7407N, 
         7486, TEA2037, 12 Transistor and IC 4N35 in 
         Switched Mode Power Supply
16. Complete Fault Finding of Monitor using IC 
         SN7407N, 7486, TEA2037, 12 Transistors and IC 
         4N35 in Switched Mode Power Supply 
17. Circuit Diagram of Bansal 14” Monitor using IC 
         74SL125A, SN7407N, TDA1170S, 11 Transistors and
         IC 4N25 in switched Mode Power Supply
18. Complete Fault Finding of Bansal 14” Monitor 
         using IC 74SL125A, SN7407N, TDA1170S,  11 Transistor
         and IC 4N25 in Switched Mode Power Supply
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Title: Modern Monitor Circuits & 
          Fault Finding (Volume II)
        Author: Manahar Lotia, 
        Number of pages: 22
        Edition: 1996
        Language: English
       
Table of Contents
1. Circuit Diagram & Fault Finding of ESSEN Flat 
     Screen Monitor Model: “SN-12MCG” using IC 
     TDA1170N, TDA1180P, 9 Transistors and 
     L78S15CV in Regulator Power Supply.
2. Circuit Diagram of MICROTEK 
      (DUAL) MDA(HGA) CGA Monitor using IC SN7407, 
      SN7406, TDA1170, 9 Transistors and Opto-Couple
      4N35/322A in Switched Mode Power Supply.
3. PCB Layout of MICROTEK 
      (DUAL) MDA (HGA) CGA Monitor using ICSN7407, 
      SN7406, TDA1170, 9 Transistors and Opto-Couple
      4N25/322A in Switched Mode Power Supply.
4. Complete Fault Finding of MICROTEK
     (DUAL) MDA  (HGA)/CGA Monitor using IC SN7407, 
     SN7406, TDA1170, 9 Transistors and Opto-Couple
     4N35/322A  in Switched Mode Power Supply.
5. Circuit Diagram & Fault Finding of HCL Monitor using 
     IC SN7407, SP8936/DM4LS86N, TDA1170N, LM1391N,
     11 Transistors and Opto-Couple 4N35 in Switched 
     Mode Power Supply.
6. PCB Layout & Fault Finding of HCL Monitor using IC 
      SN7407, SP8936/DM4LS86N, TDA1170N, LM1391N, 
      11 Transistors and Opto-Couple 4N35 in Switched 
      Mode Power Supply.
7. Circuit Diagram of TRL (DUAL) MDA (HGA)/CGA 
      Monitor using IC SN7407, TDA1170N, MC1391P, 15 
      Transistors and IC 4N35 in Switched Mode Power Supply.
8. PCB Layout of TRL (DUAL) MDA (HGA)/CGA
      Monitor using IC SN7407, TDA1170N, MC1391P, 
     15 Transistors and IC 4N35 in Switched Mode Power 
     Supply.
9. Complete Fault Finding of TRL (DUAL) MDA (HGA)/
      CGA Monitor using IC SN7407, TDA1170N, MC1391P,
      15 Transistors and IC 4N35 in Switched Mode Power 
      Supply.
10. Circuit Diagram of WIPRO Monitor Model: “DM-14” 
       using IC TDA1170N, TDA1180N, 6 Transistors and IC 
       TDA4600 in Switched Mode Power Supply Section.
monitor repair book

11. Complete Fault Finding of WIPRO Monitor Model: 
“DM-14” using IC TDA1170N, TDA1180P, 6, Transistors and IC TDA4600 in Switched Mode Power Supply Section.
12. Circuit Diagram & Fault Finding of WIPRO Monitor
Model: “MDM-14” using IC SN74136N, TDA1170N, 5 Transistors and Voltage Regulator IC L78S12 in Regulated Power Supply Section.
13. Circuit Diagram & Fault Finding of WIPRO Monitor 
       Model: “WSM-14” (REV-D)” using IC SN7406N,  SN74LS123N, TDA1170N, 
       5 Transistors & Regulator IC L78S12 in Regulated Power Suply.

14. PCB Layout of WIPRO Monitor Model: “WSM-14 
      (REV-D)” using IC SN7406N, SN74LS123N, TDA1170N, 5 Transistors
       and Voltage Regulator IC L78S12 in Regulated Power Supply Section.
15. Circuit Diagram of ZENITH 14” Monitor using IC 
       74SL125A, SN7407N, TDA1170N, 12 Transistors and Opto-Couple 
       4N35 in Switched Mode Power Supply.
16. Complete Fault Finding of ZENITH 14” Monitor 
       using IC 74SL125A, SN7407N, TDA1170N, 12 Transistors and 
       Opto-Couple  4N35 in Switched Mode Power Supply.
17. Circuit Diagram of MONOCHROME 14” Computer 
       Monitor With Audio Facility using IC TEA2017, 11 Transistors 
       and Regulated Power Supply.
18. Complete Fault Finding of MONOCHROME 14” 
       Computer Monitor using With Audio Facility using  IC TEA2017, 11 
       Transistors and Regulated Power Supply.
19. Circuit Diagram of MONOCHROME Monitor 
       Model: “DM-120MR” (CM-122MR)” Chassis no.  MM-21R using IC 
       TDA1170, TDA1180, 14 Transistors & Reg. IC L78S12CV in Regulated 
       Power Supply.
20. Complete Fault Finding of MONOCHROME Monitor Model: 
      “DM-120MR (CM-122MR)” Chassis no. MM-21R using IC TDA1170S/N, 
       TDA1180P, 14 Transistors & IC L78S12CV in Regulated Power Supply.
21. Circuit Diagram of MONOCHROME Computer Monitor Model:
      “TM-1289” using IC SN7406N, TDA1170S/N, 8 Transistors and Regulated 
       Power Supply Section.
22. Complete Fault Finding of MONOCHROME Computer Monitor Model:
      “TM-1289”  using IC SN7406N, TDA1170S/N, 8 Transistors and Regulated 
       Power Supply Section. 
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Title: Modern Colour Vga Monitor Servicing Manual
        Author: Manahar Lotia
        Number of pages: 37
        Language: English
Table of Contents
Chapter 1 - Important Service Safety Precautions
   Warning (Servicing the High Voltage System and Picture Tube
    X-Radiation & High Voltage Limits)
Chapter 2 - Description of Vga Colour Monitor
 General
   Power Circuit
   Mode Detecting Circuit
   Vertical Deflection Circuit
   Horizontal Drive Circuit
   Horizontal Output Circuit
    Video Circuit
   Signal Cable Input Connection
Chapter 3 - Block Diagram
Chapter 4 - Alignment Instructions
   B+ Adjustment, Horizontal Frequency Adjustment, 
    Horizontal Phase Adjustment,Vertical Frequency 
    Adjustment, Horizontal Centering Adjustment, Vertical
    Centering Adjustment, Side Pincushion Adjustment,
    Horizontal Linearity Adjustment, Vertical Linearity 
    Adjustment, Width Adjustment, Vertical Size 
    Adjustment, Focus Adjustment, Screen Adjustment,
    Static (Centre) Convergence, Dynamic Convergence, 
    White Balance Adjustment, CRT Tilt Adjustment.
monitor repair book

Chapter 5 - Troubleshooting Guide

Chapter 6 - Computer Display System
MONITOR, Picture Tube, Electron Gun, Horizontal/Vertical Deflection, 
    Persistence, Scanning, Raster Scanning, Interlacing/Non-interlacing, 
    Image generation, Monitor Interfacing, Monitor Types

Chapter 7 - Working of a VGA Color Display
   Computer to Display Card, Display Card of Monitor       
Chapter 8 - Technical Information
    Analog, Aspect Ratio, Autosizing, Bandwidth, BitBLT (Bit-Block Transfer), 
     Blanking, Composite, Convergence, Colors, Digital Dot Pitch, Drift, Frame 
     Buffer, Graphics Co-processor, Horizontal Scanning Frequency, Interlacing,
     Multiscanning, Noninterlaced Display, Phosphors, Presistence, Pixels 
     Raster and Vector Graphics, Resolution, Retrace, Roping, Scan Rate, Size, 
     Slot Mask, Synchronizing Signals, Triad, TTL, Vertical interval, Vertical 
     Scanning Frequency, Video Adapter, Video Bandwidth, Autoswitching 
     Video Board.
Chapter 9 - Some Information About Indian Monochrome 
                   Vga Monitors
     TVSE TM-301, IOTA T-1448, Shivom Enterprise 1428 MVGA, Vintron          
       VIN-MV-1, Mtek
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Title: Modern Voltage Stabilizer Servicing
       (Introduction, Basic Principle & Repairing)
       Author: Manahar Lotia
       Number of pages: 129
       Edition: 2000
       Language: English
Table of Contents
Chapter 1 - Voltage Stabilizer-Introduction
a. Manual Voltage Stabilizer
b. Auto-cut Voltage Stabilizer
c. Automatic Voltage Stabilizer
d. Switches
e. Meters
f. Indicators
g. Semiconductor Devices
     Diodes  Zener Diodes  Transistors Thryistors  Integrated Circuits
Chapter 2 - Relay
a. Relay Construction of Relay
b. Relays in Circuit
c. Single, Double & Triple Pole Relays
d. Relay Classification 
e. Relay Operating Speed
 Hold Current  Operate Current  Non-operate Current
     Release Current  Service Life

Chapter 3 - Transformer
a. Things That Effect Inductance
b. Transformer
c. Types of Transformer 
Output Voltage (Step-up Transformer, Step-down Transformr)
 Core Type (Permeability, Electrical Resistivity, Laminated Iron Core, 
     Ferrite Core, Air Core)
 Usage (Voltage Potential Transformer, Power Transformer,
     Current or Series Transformer, Impedance or Coupling Transformer,
     Isolation Transformer, Auto Transformer)
Different Types of Windings (Layer Winding, Random Winding, Bifilar Winding)
Transformer Ratings (Watts/Volt-Ampere)
Applying DC to Transformer
Advantages of Transformer
Parts of a Transformer (Coil, Former/Bobbin, Core)
Chapter 4 - Basic Modules of a Stabilizer
a. Regulated DC Power Supply
 Step-Down Transformer
    Rectifier Circuit
    Filter Circuit
    Regulator Circuit
b. Step-Down Transformer
c. Rectifier Circuit
    Half Wave Rectifier
    Full Wave Rectifier
    Full Wave Bridge Rectifier
d. Filter Circuit
    Capacitor filter
    Inductive Filter (Choke/Coil)
    Combination Filters (LC Filter, Pi Filter)
e. Regulator
 Zener Regulator
    Shunt Regulator
    Series Regulator
f. Voltage Level Sensors
g. Voltage Comparators
    Comparator using a Transistor and a Zener Diode
    Comparator using Wheatstone Bridge
    A Practical Comparator Circuit
   Comparator using Op-Amp
Op-Amp as an Inverter Comparator
CMOS Comparator
h. Relay Drivers
Relay Driver using Single Transistor
Relay Driver using Two Transistor (Darlington Pair)
Relay Driver using Combination of PNP and NPN Transistor
Relay Driver with Inverter Transistor
i. Relay Chatter Preventer and Hysteresis
j. Schmitt Trigger
Complementary Schmitt Trigger
Schmitt Trigger from an Op-Amp
Chapter 5 - Cutouts and Protective Devices
a. Over Voltage Cutout
b. Cutout Adjustment
c. Fail Safe Overvoltage Cutout
d. Fail Safe Undervoltage Cutout
e. Over/Under Voltage Cutout using Transistors
f. Over/Under Voltage Cutouts using OR Gates
g. Fail Safe Over/Under Voltage Cutouts using NOR Gates
h. Over Voltage/Under Voltage Cutouts using IC CD4011
i. Cutouts using IC 747
j. Cutouts using Op-Amps
k. Fuse
 Fast Acting Fuse
     Slow Blow Fuse
l. Circuit Breakers
m. Delayed Operation
     Power Supply for Delayed Operation (Under/Over Voltage 
      Cutouts with TimeDelay using Op-Amps)
     Time Delay Indicator

Chapter 6 - Manual Voltage Stabilizer
a. A Simple Manual Voltage Stabilizer
b. Manual Up-Down Voltage Stabilizer
   Step-Up Mode  Step-Down Mode
c. Auto-Cut Voltage Stabilizer
d. Autocut Stabilizer using DPDT Switch
e. Autocut Stabilizer using Two Relay 
f.Converting Manual Stabilizer to Automatic Stabilizer 


monitor repair book

Chapter 7 - Automatic Voltage Stabilizer
a. Automatic Voltage Stabilizer abilizer using Single Relay
b. Automatic Stabilizer using Separate Sensor & Relay Driver Winding
c. Buck Boost Connections
d. Buck Boost Operations
e. Automatic Stabilizer using Two Relays
f. Automatic Voltage Stabilizers using Two Pole Relays
g. Automatic Stabilizer TIVICO TA-250
h. Automatic Stabilizer with Under/Over Voltage Cutouts using Two Relay 
i. Philips Two Relay Stabilizer 835/VS
j. Setting the Stabilizer
k.Philips Two Relay Stabilizer 835/VSP
l. 0.5KVA Autocut, Automatic Voltage 
  Stabilizer
m. 0.25KVA Automatic Voltage Stabilizer
n. Electronic AC Voltage Regulators
     Solid State Dimmers  Automatic Regulators
     Amplifier Type Automatic Voltage Regulator
o. Automatic Stabilizer using IC-747 
 Adjustment
p. Automatic Voltage Stabilizer using Three Relay (GEM)

Chapter 8 - Servo Stabilizer
a. Variacs or Dimmerstat
b. Servo Motors
c. Working Principle
d. Servo Controlled Systems
Variac and Buck boost transformer
     Sensor Circuit
     The Amplifier Circuit
     Servo Motor
e. Servo Controlled Stabilizers
f. Usiervo Controlled Stabilizer with Over/Under Voltage Cutout
     Protective Circuit
        
Chapter 9 - Important Points Regarding Servo Stabilizer
a. Aligning Automatic Stabilizer
   Aligning control circuit of Automatic Voltage Stabilizer having two Relays
    Aligning control circuit of automatic voltage stabilizer having three relays
b. Capacity if a Stabilizer
c. Use if Diode/Capacitor with Relay Coil
d. Relay Chatter & Hysteresis
e. Relay Driver without hysteresis
f. Snap Action
g. Use of MCB with Stabilizer
h. Spike Protection
i. Earth Connection
j. Use of Relay in a Stabilizer
  Deciding the relay voltage
    Relay Repair
    Reed Relay
k. Insulating varnish on transformer winding Variac
 Setting a Auto-cut stabilizer at auto cut position using a variac
l. Main Faults of a Automatic Voltage Stabilizer
m.Some important points about Transformer
     Transformer winding using winding machine
     Units associated with the transformer
     Advantage of a transformer  Transformer Loss
     (Eddy Current Loss, Hysteresis Loss, Copper Loss)
     Transformer without load
     DC supply with transformer
     Coil/Winding used in the transformer
     Identifying Auto Transformer Ends
n. Transformer Efficiency
o. Repairing a Burned/Defective Transformer
p. Tools required for transformer making
     Screw-Driver  Plier  Hammer  Wrench(Both End Open Wrench,
      Socket Wrench)  Wire Gauge
q. Important points to remember when making transformer
r. How to varnish the transformer
      Ideal Method  Common method of varnish application
s. Transformer Designing
     TPV (Turns Per Voltage)  Turns Per Square Inch  Bmax
     Core Area (A)  Frequency (F)
t. Constants
u. Transformer Design
v. Calculation
     Finding Secondary Wattage  Calculating Core Area
     Calculating Primary Wattage  Calculating Primary Current
     Calculating TPV value  Calculating total wire turns in primary
     Calculating total wire turns in Secondary 
     Finding Wire gauge (SWG) value (Example, Calculating Secondary 
      wattage, Calculating Core Area, Calculating Primary Wattage)
     Calculating Primary current
     Calculating TPV (Turns Per Volt)
     Finding total turns in primary winding
     Finding total turns secondary winding
w. SWG (Standard Wire Gauge)
     Current Carrying Capacity (in ampere) for Rubber/PVC insulated wire
     Using alternate wire when required wire gauge is not available
     Tinned Copper Fuse Wires
     E-I Lamination Size (Based on the commonly available core in the
       market)
x. Information about Transformer Winding using CRGO Core
y. SOME MORE IMPORTANT DATA

 

 

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