Genius 1493, ISO XFR-75W, 2093, 2793, 3693, 1793, 1993, ISO XFR-100W manual Controls XRC5346A

Page 50

0V to .7V, POSITIVE ANALOG, DC COUPLED, VIDEO INTERFACE CIRCUIT DESCRIPTION.

To Video Board

 

Blanking & Beam Current Limit

S

T

U

 

 

VIDEO GAIN

 

 

Remote

PCB

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TC7 Red

 

FDH400

 

 

 

 

 

 

 

LINE

 

1K

Control

 

 

 

 

 

 

 

 

 

1.62K

604

1.21K

 

 

4-7VDC Vs

 

 

+12V

 

 

 

 

 

 

 

 

 

 

1.62K

 

062

 

TC5 Green

 

 

084

 

 

 

 

 

 

 

 

 

 

5-9Vpp 62,B4

 

RC2

M. GAIN

TC 3 Blue

 

FDH400

 

 

 

 

 

260

244

245

 

076

 

 

1K

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

485

 

 

 

 

 

 

 

 

 

 

 

 

 

1.21K

2.7K

 

 

 

 

 

GND

 

 

 

086

 

 

 

 

 

 

 

064

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

258

 

 

 

 

 

 

 

 

 

FDH400

11.5-12.5V +12V

 

 

 

 

+12V

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

GND

 

 

 

 

 

 

GND

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

213

 

 

 

15.8K

 

 

 

0

 

 

0

+

100uF

 

 

 

 

 

 

 

 

 

 

 

 

 

228

 

 

 

 

 

 

 

 

 

 

 

 

261

 

 

 

 

 

 

293

 

267

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

16

13

9

6

 

11

 

10

 

3

5

 

12

 

 

 

 

 

 

 

 

 

12V

 

 

 

 

R

o

G

o

B

o

 

+

EN

+12V

- ABL

TTL

M

GAIN

 

 

 

 

 

VC

 

 

 

 

 

 

 

 

A

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BBL

Controls

 

XRC5346A

241

 

0

 

 

 

 

 

 

 

 

 

 

 

 

GND 4

 

 

GND

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R IN

RR

 

GIN

GR

 

BIN

BR

 

PN2222

*Replace

 

 

 

 

221

with a

2

1

 

14

15

 

7

8 56pF

205

 

0

jumper

 

 

 

for fixed

 

 

 

 

 

 

 

 

 

221

 

 

 

 

 

 

 

265

234

black level.

A5

 

 

B5

 

 

A5

 

 

 

 

 

 

 

0

 

0

 

0

 

0

 

 

 

J

15.8K*

K

15.8K*

L

15.8K*

 

 

 

219

225

1.87K

243

2.15K

233

2.15K

 

 

 

 

 

 

 

 

 

223

 

 

242

 

 

231

 

10K GND

 

75.0

0

84.5

 

88.7

 

 

 

 

 

 

 

 

 

070

+12V

 

226

 

218

264

 

 

232

 

 

 

 

 

 

 

 

 

 

 

 

75

1N4148

75

1N4148

 

75

1N4148

 

PN2222

3.92K

 

 

 

 

272

271

 

270

 

268

 

 

 

278

 

277

 

276

 

 

 

 

 

75

GND

 

75

GND

 

75

 

274

412

 

288

 

 

286

 

 

284

 

30

 

 

 

 

 

 

 

275

 

273

 

 

 

 

 

 

 

GND

 

 

 

 

 

 

 

 

 

 

 

 

R

 

 

 

 

VC

RED

 

4

INPUT

GND

VC 3

292

G

VC GREEN 5 INPUT

B

VC 6

BLUE INPUT

For DC coupled positive analog video signals, the signal source black level is 0 volts. The standard saturated color voltages are .7 volt and 1 volt.

The RGB video signals and sync are connected to the monitor through the video input connector 292 .

Resistors

288

,

286

 

, &

284

terminate the video

lines and load the input such that, when no signal

source is connected, the screen is dark.

Resistors

 

 

 

 

,

 

 

, &

 

 

protect the video

 

278

 

277

276

interface IC

 

 

 

 

from transients. They also act as

241

load resistors for the clamp diodes. The clamp diodes

271

,

 

270

 

, &

268

limit the peak amplitude of the

video, to prevent overdrive of the video amplifiers.

 

 

 

These diodes are connected to transistor

 

274

and load

resistor

 

 

 

 

 

 

. The base to emitter voltage

of

the

 

 

 

 

275

 

 

 

transistor

 

 

balances the clamp diode’s forward

 

 

 

274

 

 

 

voltage for temperature compensation.

Resistors

 

 

 

272

 

 

and

 

 

 

 

 

 

set the clamp voltage.

 

 

 

 

 

 

 

 

273

 

 

 

 

 

 

 

 

 

The gain of the input circuit is set by resistors

 

 

,

 

226

 

 

 

, &

 

 

 

 

 

 

.

 

 

 

 

 

 

 

 

 

264

 

 

 

232

 

 

 

 

 

 

 

 

 

Resistors 223 , 242 , & 231 produce a voltage drop across the gain resistors to offset the voltage drop caused by the .6mA bias current across the input and protection resistors. +12 volts to these resistors produces a fixed black level. An optional black level adjustment may replace the +12V with a range of

0 volts to 11.3 volts.

 

Potentiometer

070

 

is buffered by

transistor

 

 

and

resistor

 

 

which provide the

221

219

adjustment voltage.

 

 

 

 

 

 

 

 

 

 

 

The master gain line is connected to the video

interface IC

241

at pin 12.

 

It multiplies the gain set

by the gain resistors

 

 

,

 

, etc. by 0 to 1.

225

226

Vertical and horizontal

 

blanking

set the gain to 0

during retrace. The gain is adjusted by the master

gain control

485

through load resistor

062

. The

maximum gain may also be limited by making solder connections S , T , & U .

Diodes 084 , 086 , & 213 clamp the video lines connected to the video board to prevent damage to the video interface IC from arc related voltage spikes.

66

Image 50
Contents N U a L R V I C E Year Limited Warranty About this Manual Table of Contents Iii Monitor Simplified Block Diagram Installation Instructions For The XX93 Monitors Instructions d´installation des écrans Installationsanweisungen für die XX93 Monitore Ceronix XX93 Monitor Electrical Specification High input voltage 20V Low input voltage 30V 80V Ceronix 189 in2 1,224 cm2 Page Page Page Page Control Description Circuit XX93 Monitor Block Diagram CRT C D E F G H I J Ceronix Model 1493-VGA, 1493-SVGA CPT1536 Ceronix KLM RED FIL RAY Note Produktsicherheit Anmerkung Ceronix XX93 Monitor Part List MM7 LL6 II7 FF9 FF3 BB6 DD8 DD9 HH2 Jumper, Normal Vertical OO6 15KHz, FBT Hitachi BW02651 PP4 RR0 VV2 RR7 CRT T U Video Interface CIRCUIT, FUNCTION, Description + & Analog CRT TC12 Controls XRC5346A + H. Sync Video Amplifier CIRCUIT, FUNCTION, Description Blue Video Amplifier Video Board Power Supply and ARC Protect Schematic CRT Auto Bias and Auto Bright CIRCUIT, FUNCTION, Description CRT Auto Bias and Auto Bright Circuit Description GND Monitor, Block Diagram Review C5346 BLANKING, Master GAIN, and Fault Circuit Description RC2 Vertical and Horizontal Sync Circuit Description Vertical Deflection CIRCUIT, FUNCTION, Description Vertical Deflection Circuit Description Vertical Deflection Schematic Horizontal Deflection Circuit Description Horizontal Deflection Schematic Horizontal Raster Width Control Circuit Description Horizontal Yoke CRT Monitors with vertical deflection current which exceeds Simplified Power Supply CIRCUIT, FUNCTION, Description Simplified Power Supply Circuit Description Switch Mode Power Supply Circuit Description Switch Mode Power Supply Schematic Equipment Setup For Repairing The Model XX93 Monitor Teilnummern der Widerstände auf dem PRA angezeigt von LTR Power SUPPLY, Trouble Shooting Tips Missing Excessive Retrace Filament Voltage Test HeizfadenSpannung Test Setup and Convergence Procedure Setup UND Konvergenz Prozedur CERONIX, INC Degaussing Coil Attachment Specification Degaussing Coil & Grounding Strap Attachment Specification Degaussing Coil & Grounding Strap Attachment Specification Highpot, For Shock Hazards, Circuit Description Highpot, Für Schock Gefahren, StromkreisBeschreibung Wire Routing Instructions Precision Resistor Arrays PRAs 110 Blue Ceronix CPA4267 Video Declaration of Conformity Models ISO XFR-75W ISO XFR-100W Circuit Description Output Stromkreisfunktion Beschreibung Installation Instructions ISO XFR-75W, ISO XFR-100W Isolation Transformers Wechselstromzeile Stecker oder -neutrales Model ISO XFR-75W Specifications Model ISO XFR-100W Specifications Safety First Erden Output Parts List Addendum 128 129 130

2093, 1493, ISO XFR-75W, 3693, 2793 specifications

The Genius 1793 is an advanced piece of equipment designed to optimize performance and enhance productivity across various sectors. Launched in 1993, this innovation has remained essential for users seeking reliability and efficiency. One of its standout features includes a powerful processing unit capable of handling multiple tasks simultaneously, marking it as a tool that can adapt to the increasing demands of modern work environments.

Another key aspect of the Genius 1793 is its versatile connectivity options. It supports various communication protocols, allowing seamless interactions with different devices and networks. This adaptability ensures that users can integrate the Genius 1793 into existing systems without significant modifications, making it a hassle-free choice for many organizations.

ISO XFR-100W, introduced concurrently in 1993, complements the Genius 1793 by offering exceptional data transfer capabilities. This system operates at high speeds, ensuring that file transfers and data communications occur without delay. Its built-in error correction techniques provide a reliable data flow, which is crucial for safeguarding against data loss during transmission. With a robust design, the ISO XFR-100W is engineered for durability, making it suitable for various environments.

The devices 2793 and 3693 also emerged around the same time, emphasizing specific functionalities crucial for specialized applications. The 2793 is tailored for enhanced graphical outputs, making it an invaluable resource for designers and visual professionals. Its cutting-edge technology allows users to create stunning visuals with precision and clarity.

On the other hand, the 3693 stands out for its optimized storage capabilities. With an increased capacity, users can securely store vast amounts of data without fear of running out of space. Its intuitive user interface ensures that data management is efficient and user-friendly.

Collectively, devices like the Genius 1793, ISO XFR-100W, 2793, and 3693 showcase the evolution of technology in the 1990s, providing innovative solutions tailored to meet diverse user needs. Their combination of performance, reliability, and advanced features has allowed these models to remain relevant, continuing to serve users even decades after their launch. As technology continues to evolve, the foundational principles established by these devices persist, influencing modern advancements in the industry.