Gebruiksaanwijzing /service van het product ISO XFR-75W van de fabrikant Genius
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Monitor Models: 1493 1793 1993 2093 2793 3693 S S E E R R V V I I C C E E M M A A N N U U A A L L Safety Isolating Transformer Models: ISO XFR-75W ISO XFR-100W.
COPYRIGHT 2002 CERONIX All rights reserved. © ® ISO 9001:1994 Certified through TÜV Management Service. Recognized under the Component Program of Underwriters Laboratories Inc., the Canadian Standards Association, and TÜV Product Service. Compliance to the following Standards: IEC 60950, CAN/CSA-C22.
This manual is specifically written to aid the service technician, repairing CERONIX Models 1493, 1793, 1993, 2093, 2793, and 3693 color monitors. ABOUT THIS MANUAL The power supply trouble shooting section describes methods used to power up various monitor circuits, when there is a fault in the monitor, which disables the power supply.
TABLE OF CONTENTS About This Manual............................................................................................................. Table of Contents.........................................................................................
Video Amplifier Circuit, Function, Description................................................................. Video Amplifier Circuit Description and Schematic......................................................... Video Board Power Supply and Arc Protect Schematic.
Monitor Simplified Block Diagram. This block diagram gives a broad view of the circuit organization of the 1493, 1793, 1993, 2093, 2793, and 3693 monitors. The blocks with the bold outline represent circuits which provide these monitors with a wide range of operating conditions without the need for adjustment.
! FUSE 3A-T 75VA Apply power to the monitor and the drive electronics. Mains Power ISOLATION TRANSFORMER Attached to the monitor chassis. GREEN / YELLOW WIRE Installation Instructions For The XX93 Monitors. Unpack the monitor. Install the monitor in the enclosure.
! Instructions d´installation des écrans XX93. 1. Un fusible á fusion lente de 3 amp (pour le courant du champ magnétique d´adjustement) et un transformateur d´isolation de 75 VA sont le minimum requis pour utiliser nos écrans dans un produit. 2.
! Installationsanweisungen für die XX93 Monitore. Schließen Sie den Monitor im Gehause an. Für Details, Folgen Sie den Installation-Anweisungen, Vom Lieferanten der Antriebelektronik. Prüfe daß die folgenden Drähte ordentlich verbunden sind; Grüne Draht vom CRT aquadag zum Video Schaltpult.
5 INPUTS Standard Video Configurations, available, are: A. Positive Analog, DC Coupled. To Amp. Video Gnd .6mA Monitor Min. Typ. Max Video Source D-A 1. 75 Ω 75 Ω CERONIX XX93 Monitor Electrical Specification. Black level Saturated color 1.00V 1.02V 1.
6 Min. Max. Min. Max. Min. Max. Min. Max. Min. Max. Min. Max. The Sync signals may be of either polarity and separate or composite. 2. High input voltage Low input voltage Horizontal sync pulse Vertical sync pulse Horizontal frequencies: Vertical frequencies: 2.
7 Min. Max. Min. Max. Min. Max. Min. Max. Min. Max. Min. Max. Min. Max. Min. Max. Min. Max. Min. Max. 9300°K 9300°K 9300°K 9300°K 6. Environmental Operating temperature Storage temperature Operating humidity Storage humidity 0° C 70° C 85° C -20° C 20% 80% 10% 95% CERONIX XX93 Monitor Electrical Specification.
8 CERONIX XX93 Monitor Electrical Specification. 7. Picture tube 1493-CGA/VGA/SVGA 1793-SVGA Inch Inch mm mm 13.2 335 16.1 409 11.1 281 12.9 328 8.3 211 9.
The Beam Current Buffer converts the, high impedance low current, beam current signal into a low impedance voltage. This voltage is applied to the auto bias IC through a 200 ohm resistor.
The aging of the picture tube (CRT) not only affects the balance of the cathode cutoff voltage, which is corrected by the auto bias circuit, but it also affects the gain of the CRT.
H I J K 11 The CRT for the 1493, 1793 and 2093 monitors have a 90° deflection angle. The 1993 incorporates 100° while the 2793 CRT has 110° and the 3693 has 111° deflection angles. These picture tubes have integral implosion protection and a EHT of 25KV.
M N O 12 P The main function of the Flyback Transformer (FBT) is to generate a 25,000 volt (EHT) potential for the anode of the picture tube. This voltage times the beam current is the power that lights up the phosphor on the face of the picture tube.
The Horizontal Size Control circuit has four inputs: Q 13 R S 1. H SIZE ----------- Horizontal raster size --------- Diode modulator 2. V SIZE ----------- Vertical raster size ------------- Vertical control 3. V RAS. POS. --- Vertical raster position ------- DC current to V.
The Load consists primarily of the horizontal flyback circuit. The power supply will not operate without the load since the voltage that sustains the power supply comes from a secondary in the power transformer and depends on some primary current to generate secondary current.
5 6 7 8 9 4 3 2 1 0 5 6 7 8 9 4 3 2 1 0 BB CC DD EE FF GG HH II JJ KK LL MM NN OO PP AA BB CC DD EE FF GG HH II JJ KK LL MM NN OO PP AA 1,000uF 1 H. S. +12V GND I BEAM 1N4937 250V 1N4937 3.3nF 12 LM393 + 1/2 SCREEN + HORIZONTAL WIDTH CONTROL 510 Ω Posistor Inrush Current Limit 10.
ABCD E F G H I J 2 3 4 5 6 7 ABCD E F G H I J 1 2 3 4 5 6 7 1 9 282 285 287 290 291 294 300 301 302 305 307 308 310 311 312 313 315 317 321 309 319 303 320 227 237 238 224 220 234 263 262 240 272 0.
5 6 7 8 9 4 3 2 1 0 5 6 7 8 9 4 3 2 1 0 BB CC DD EE FF GG HH II JJ KK LL MM NN OO PP AA BB CC DD EE FF GG HH II JJ KK LL MM NN OO PP AA 1,000uF 1 H. S. +12V GND I BEAM 1N4937 250V 1N4937 3.3nF 12 LM393 + 1/2 SCREEN + HORIZONTAL WIDTH CONTROL 510 Ω Posistor Inrush Current Limit 10.
ABCD E F G H I J 2 3 4 5 6 7 ABCD E F G H I J 1 2 3 4 5 6 7 1 9 282 285 287 290 291 294 300 301 302 305 307 308 310 311 312 313 315 317 321 309 319 303 320 227 237 238 224 220 234 263 262 240 272 0.
QQ RR SS 0 1 2 3 4 5 6 7 QQ RR SS TT UU VV WW WW VV UU TT YY XX ZZ 0 1 2 3 YY XX ZZ 4 5 6 7 4 Hs +16V +127fV +12V +120V Source 12 +12V DAG GND 5 .1uF Red Video Amplifier GND 560 Jumper GND +12V Green Video Amplifier 560 3 15 816 837 2SC 3467 K3 7 PN2907A 17 1.
1 2 3 4 1 2 3 4 P N M L K P N M L K 1N4007 PCB, 800 H400 1N4007 1.8K 12 45 67 89 1 0 1 1 1 2 13 14 15 16 17 18 19 1 2 3 4 5 6 7 8 13 14 20 A64 942 3467 943 945 2.
1 2 3 4 1 2 3 4 PN M L K PN M L K 1N4007 PCB, 800 H400 1N4007 1.8K 1 2 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 12 345 67 8 13 14 20 A64 942 3467 943 945 2.
Safety Critical Components for XX93 Monitors. X-radiation is produced by electrons colliding with the phosphor and shadow mask at the front of the picture tube. The X-radiation emanating from the front of the picture tube is highly reduced due to the shielding affect of the leaded glass face.
102 CPC1027 D2 HH8 6,800pF ±5%, 100V, Film ! Sicherheit Kritische Bestandteile für Monitoren XX93. PRODUKTSICHERHEIT ANMERKUNG: Bestandteile gekennzeichnet durch das Symbol ! haben Sie die speziellen Eigenschaften, die zur Sicherheit wichtig sind.
∆ Bd.# Part No. Bd. Sch. Ref. Description A B C D E F G H I J K L M N O P Q R S T U V W X Com. PRICE CERONIX XX93 Monitor Part List 45 A CPA4233, 1493-CGA B CPA4235, 1493-CGA C CPA4200, 1493-VGA D C.
∆ Bd.# Part No. Bd. Sch. Ref. Description A B C D E F G H I J K L M N O P Q R S T U V W X Com. PRICE CERONIX XX93 Monitor Part List 46 A CPA4233, 1493-CGA B CPA4235, 1493-CGA C CPA4200, 1493-VGA D C.
∆ Bd.# Part No. Bd. Sch. Ref. Description A B C D E F G H I J K L M N O P Q R S T U V W X Com. PRICE CERONIX XX93 Monitor Part List 47 A CPA4233, 1493-CGA B CPA4235, 1493-CGA C CPA4200, 1493-VGA D C.
∆ Bd.# Part No. Bd. Sch. Ref. Description A B C D E F G H I J K L M N O P Q R S T U V W X Com. PRICE CERONIX XX93 Monitor Part List 48 A CPA4233, 1493-CGA B CPA4235, 1493-CGA C CPA4200, 1493-VGA D C.
∆ Bd.# Part No. Bd. Sch. Ref. Description A B C D E F G H I J K L M N O P Q R S T U V W X Com. PRICE CERONIX XX93 Monitor Part List 49 A CPA4233, 1493-CGA B CPA4235, 1493-CGA C CPA4200, 1493-VGA D C.
∆ Bd.# Part No. Bd. Sch. Ref. Description A B C D E F G H I J K L M N O P Q R S T U V W X Com. PRICE CERONIX XX93 Monitor Part List 50 A CPA4233, 1493-CGA B CPA4235, 1493-CGA C CPA4200, 1493-VGA D C.
∆ Bd.# Part No. Bd. Sch. Ref. Description A B C D E F G H I J K L M N O P Q R S T U V W X Com. PRICE CERONIX XX93 Monitor Part List 51 A CPA4233, 1493-CGA B CPA4235, 1493-CGA C CPA4200, 1493-VGA D C.
∆ Bd.# Part No. Bd. Sch. Ref. Description A B C D E F G H I J K L M N O P Q R S T U V W X Com. PRICE CERONIX XX93 Monitor Part List 52 A CPA4233, 1493-CGA B CPA4235, 1493-CGA C CPA4200, 1493-VGA D C.
∆ Bd.# Part No. Bd. Sch. Ref. Description A B C D E F G H I J K L M N O P Q R S T U V W X Com. PRICE CERONIX XX93 Monitor Part List 53 A CPA4233, 1493-CGA B CPA4235, 1493-CGA C CPA4200, 1493-VGA D C.
∆ Bd.# Part No. Bd. Sch. Ref. Description A B C D E F G H I J K L M N O P Q R S T U V W X Com. PRICE CERONIX XX93 Monitor Part List 54 A CPA4233, 1493-CGA B CPA4235, 1493-CGA C CPA4200, 1493-VGA D C.
∆ Bd.# Part No. Bd. Sch. Ref. Description A B C D E F G H I J K L M N O P Q R S T U V W X Com. PRICE CERONIX XX93 Monitor Part List 55 A CPA4233, 1493-CGA B CPA4235, 1493-CGA C CPA4200, 1493-VGA D C.
∆ Bd.# Part No. Bd. Sch. Ref. Description A B C D E F G H I J K L M N O P Q R S T U V W X Com. PRICE CERONIX XX93 Monitor Part List 56 A CPA4233, 1493-CGA B CPA4235, 1493-CGA C CPA4200, 1493-VGA D C.
∆ Bd.# Part No. Bd. Sch. Ref. Description A B C D E F G H I J K L M N O P Q R S T U V W X Com. PRICE CERONIX XX93 Monitor Part List 57 A CPA4233, 1493-CGA B CPA4235, 1493-CGA C CPA4200, 1493-VGA D C.
∆ Bd.# Part No. Bd. Sch. Ref. Description A B C D E F G H I J K L M N O P Q R S T U V W X Com. PRICE CERONIX XX93 Monitor Part List 58 A CPA4233, 1493-CGA B CPA4235, 1493-CGA C CPA4200, 1493-VGA D C.
∆ Bd.# Part No. Bd. Sch. Ref. Description A B C D E F G H I J K L M N O P Q R S T U V W X Com. PRICE CERONIX XX93 Monitor Part List 59 A CPA4233, 1493-CGA B CPA4235, 1493-CGA C CPA4200, 1493-VGA D C.
∆ Bd.# Part No. Bd. Sch. Ref. Description A B C D E F G H I J K L M N O P Q R S T U V W X Com. PRICE CERONIX XX93 Monitor Part List 60 A CPA4233, 1493-CGA B CPA4235, 1493-CGA C CPA4200, 1493-VGA D C.
∆ Bd.# Part No. Bd. Sch. Ref. Description A B C D E F G H I J K L M N O P Q R S T U V W X Com. PRICE CERONIX XX93 Monitor Part List 61 A CPA4233, 1493-CGA B CPA4235, 1493-CGA C CPA4200, 1493-VGA D C.
∆ Bd.# Part No. Bd. Sch. Ref. Description A B C D E F G H I J K L M N O P Q R S T U V W X Com. PRICE CERONIX XX93 Monitor Part List 62 A CPA4233, 1493-CGA B CPA4235, 1493-CGA C CPA4200, 1493-VGA D C.
∆ Bd.# Part No. Bd. Sch. Ref. Description A B C D E F G H I J K L M N O P Q R S T U V W X Com. PRICE CERONIX XX93 Monitor Part List 63 A CPA4233, 1493-CGA B CPA4235, 1493-CGA C CPA4200, 1493-VGA D C.
7.5V BIAS LINE MASTER GAIN & BLANKING +12V 200 Ω 3.6K 2 16 12 +ANALOG ENABLE RED VIDEO INPUT 2. POSITIVE GOING ANALOG MODE. MG 11 1 15.8K 15.8K 75.0 Ω 75 Ω C5346 RED channel shown 270 Ω 15KHz 0 Ω Saturated Color (.70V) Black Level (0V) VIDEO AMPS 7.
1.62K 604 Ω 1.21K 1.21K B o R o G o GAIN M + EN A IN B G IN R IN R R R G A - BL 4-7VDC 5-9Vpp 61,B4 Vs U Blanking & Beam Current Limit R VC 4 RED INPUT VC 3 GND 0VDC 56V 28,D3 Hs 6 5.6V to 1.1V, NEGATIVE ANALOG, DC COUPLED, VIDEO INTERFACE CIRCUIT DESCRIPTION.
2.15K 2.15K 1.87K 1N4148 10 R VC 4 RED INPUT 11.5-12.5V VC 3 GND U B o R o G o GAIN M + EN A IN B G IN R IN R R R G A - BL 4-7VDC 5-9Vpp 62,B4 Vs 5 VC G GREEN INPUT 6 B VC BLUE INPUT 1.62K 15.8K GND +12V 261 293 260 244 245 076 604 Ω 1.21K 1.62K ST 2.
1N4148 10 R VC 4 RED INPUT VC 3 GND B o R o G o GAIN M + EN A IN B G IN R IN R R R G A - BL 5 VC G GREEN INPUT 6 B VC BLUE INPUT 288 271 278 286 1N4148 270 GND 277 284 1N4148 268 276 4 TTL BL B GND Controls XRC5346A R B 241 16 13 5 12 3 96 1 1 +12V 274 PN2222 275 272 GND 292 281 280 283 21 1 4 15 7 8 0 Ω 218 105 Ω 270 Ω 270 Ω .
1 14 Bias Control Line from Auto Bias IC +12V C5346 VIDEO INTERFACE 2SA1370 2SC3467 301 Ω K2 1.50K K34 3904 681 Ω K6 1.49K 40.2K K19 K9 5.62K 885 MPS2907 18 K14 + NE592 7 606 K7 Ω K11 945 16V +9.25V line K4 15 Ω B14 140 Ω K16 560 Ω K17 12.
PART OF AUTO BIAS 17 1.49K B14 1.0K 40.2K 606 NE592 .1uF 140 1370 18 FDH400 2SA 1370 1 3 12 14 10 7 8 5 SOT Blue Video Amplifier 5.62K +12V GND 16 MPS2907 2SA 560 301 18 3 21 0 12.1K 15 K14 K15 K16 K17 K19 K8 K11 1.62K K1 K7 K9 GND BIAS CONTROL LINE 950 951 934 1nF 956 958 954 2.
From MAIN PCB +12V +127fV +120V Source +16V FIL. 870 872 Grid Pulse Vs -23 to -27Vdc 10V p-p 95uS 874 1.87K 1N4937 847 857 + 876 100K FDH400 FIL. +12V +16V +127V TC 8 TC 1 TC 4 GND TC 2 TC 11 TC 12 Fil. GND 868 GND 1N4005 848 1uF 846 50V FIL. +120V 150 875 1/2W cc Ω .
The auto bias circuit performs all of its sensing and bias corrections during the sixteenth to the twenty first horizontal cycle, after the vertical sync pulse. Before the sixteenth cycle, the SW in the auto bias IC is open ( SW in "C" position).
Vertical Osc. O/S, LA7851 pin 16 16H Dly. 1N4148 028 379 PN2222 384 389 0 Ω +12 V 098 383 CS=.45" Retrace Boost GND CS=.74 22K 200K 62K 510 Ω 006 0 Ω 100A 4 7 100 PN2222 6.8K 099 3 1 2 P 091 4H Dly. 1N4148 025 8H Dly. 1N4148 027 381 15.8K Autobias Delay .
Vs 2.2 to 2.7Vdc 4.2Vp-p 360uS Vs 7.8 to 8.8Vdc 8.4Vp-p 95uS 68.1K C1 LM324 1/4 LM324 1/4 LM324 1/4 +12V Line 100K R G B 3.3K 909 Vs 9 to 10Vdc 9.6Vp-p 95uS 2.7K 884 888 TC 10 1N4148 8 + AUTO BIAS CIRCUIT 11 13 9 10 12 14 15 7 6 5 4 16 17 18 19 1 2 32 0 21 22 GND Vcc Blue Blue GND CA3224E AUTO BIAS IC +10V .
+24V SYNC VIDEO GAME CRT H V VERTICAL CONTROL OSCILLATOR VERTICAL CONTROL & HORIZONTAL H. H. REMOTE CONTROLS HORIZONTAL Size Control DIODE Modulator FBT LOAD ISOLATION Transformer DOUBLER VOLTAGE SWITCHING REGULATOR Raw DC 320V +52V to +129V -200V Driver Output 3 Interface DY DY H s V LA7851 I.
+2.5V + Video Amp. +7.5V +12V One of three input circuits. C5346 +12V FLYBACK PULSE SIGNAL CONDITIONING CIRCUIT 072 PN2222 MASTER GAIN HORIZONTAL BLANKING 207 .047uF 253 1N4148 + 5 LM393 1/2 7 6 + LM393 1/2 1 VERTICAL BLANKING 2 +2.5V D +6V BEAM CURRENT LIMITER beam current From FBT Total To CRT VIDEO INTERFACE 200 Ω 3.
BLANKING, MASTER GAIN, AND FAULT CIRCUIT DESCRIPTION. 76 Horizontal blanking ( ) is added to the gain line by transistors 072 . This transistor pulls down on the gain line when the flyback pulse is high.
LM393 + 1/2 HORIZONTAL BLANKING 0VDC 56Vpp 62,D6 Hs 4.5-5.3V 5Vpp 16,E5 Vs 2-3VDC 4Vpp 63,C4 Vs +12V PN2222 .047uF 1 3 VERTICAL GND 368 1.8K 1N4937 078 080 093 270 Ω 081 072 248 252 253 250 211 210 6.8K 251 6.8K 1.8K 207 208 1K 1.8K GND 1N4148 7 5 6 4 8 2 MPS2907 212 2.
GND 47nF Interlace (15KHz) 254 10uF 259 + 254 PN2222 257 100K 247 33K 256 200K .047uF 318 355 1/4 LM339 13 11 10 + 356 3.92K 1.5-2VDC 59,D6 357 .05VDC 7V pp 60,C5 Vs,Hs 255 246 200K 1K 358 H s 355 355 Horizontal Sync 2 VC 1 Vertical Sync 322 6.8K 6.8K GND V s 270 Ω 270 Ω 1.
LA7851 Vertical Oscillator Vertical Sync LA7838 One Shot Clamp 5V Current Source 401 1uF Retrace Booster 385 Vertical Yolk + 390 393 392 391 388 Linearity Fine Tuning Vertical 403 375 6V +23V to +27V .
RC4 483 482 486 500 Ω 750 Ω 1K Vertical Raster Position Vertical Size RC8 RC6 RC3 Remote Control Board .1-.3VCD 3.8Vpp 17,E5 Vs 4-6VDC 2.8Vpp 18,D5 Vs 5.5-6.5V 1.4Vpp 23,F4 Vs GND 18 17 GND 410 VERT. OSC. ± SYNC INPUT VERTICAL VERTICAL OSCILLATOR OSC.
2SC3467 390 Ω , 2W 1N4148 1N4148 4.5-5.3V 5Vpp 16,E5 Vs 16 14 15 GND 370 22K V. Ref. GND 408 15.8K 11 12 13 GND Boost Vert. Out Thermal Protection 1N4005 397 .1uF 395 0 Ω 404 407 372 371 200K 200K PN2222 373 PN2222 411 Vertical Linearity Circuit 382 406 405 DECREASES TOP AND BOTTOM VERT.
HORIZONTAL DEFLECTION CIRCUIT DESCRIPTION. 3,300pF-38KHz 12 2.7K 1uF + -.2VDC 1.5Vpp 04,E6 Hs 7.3-8.7V 4Vpp 02,D6 Hs 7.3-8.7V 4Vpp 03,D6 Vs 3-4VDC 1.4Vpp 05,E6 Hs 2.4-3.4VDC 06,E6 0Vpp 1 6 4 5 2 3 GND 1 18 10K 1uF + 45K 8.8K 22K 12K 0 Ω 202 I2 I3 I12 I7 344 347 I6 GND 6,10 9 25K I5 350 351 2 7 8 6.
HORIZONTAL DEFLECTION SCHEMATIC. 5.5-6.3V 3.6Vpp 08,E6 Hs 3-7VDC .2Vpp 07,E6 Hs 5-6VDC 7Vpp Hs 09,E6 +800Hz 680 Ω 9 10 7 8 I10 13 14 15 16 DISCHARGE HORIZONTAL OSCILLATOR H. V+ 9.31K 1K 33K .01uF I8 I9 345 346 415 LA7851 H.Fo ADJ. 17 +200Hz +400Hz F G 340 Ω 170 Ω E I14 I15 I16 10.
The diode modulator controls the horizontal yoke current which affects the horizontal size. This is accomplished by the diode forward current. In effect, the diode shorts out the horizontal width coil to the extent of the diode forward current during the previous horizontal trace time.
Hs 107V or 127VDC 120Vpp 32,F6 H Size 250Vpp Min. Max. 5.6-6.2VDC 1-1.7V 34,B2 Vs 5.6-6.2VDC 2-3.6Vpp 33,B2 Vs Hs 4VDC 30Vpp 35,H7 H Size 20VDC 200Vpp Min. Max. 4-19VDC 27Vpp 36,J7 Hs Vs 4VDC 11V pp 37,I6 H Size 20VDC 15V pp Min. Max. 2-2.5 VDC 4.4Vpp 39,B3 Hs 0.
1/2W, CC 470 Ω .33uF 500 1N4007 507 2,200pF 512 509 2SC3467 505 36K 511 2.2M Ω 510 2.2M Ω 514 200K Ω 503 191K 504 1.00M Ω 501 1K Ω GND V+ 1KV 515 330pF 518 CPT1556 12 3 4 500V 502 0 Ω SCREEN 12-18V DC 50Vpp 29,F6 Vs EHT 10 GND Filament 1 332 433 453 8 7 5 4 3 2 FLYBACK TRANSFORMER 2 1 3 4 V- Horizontal Drive 434 1.
91 01 1 1 2 1 3 Retrace Booster GND Boost Drive Vert. Out Thermal Protection LA7838 Vertical Deflection 377 603 601 607 4.7 Ω 610 3.3 Ω 608 4.7 Ω 609 606 602 380 470uF 605 1.2 Ω 604 611 FR205 TIP31A +24V + TIP31A TIP32A FR205 382 1N4007 8 +24V 605 604 607 606 609 608 610 611 E C B Vertical Amp.
AC line User supplied Isolation Transformer V- GND +52V to +127V + + LOAD H Dy & EHT VIDEO 142 SECONDARIES 136 166 137 V REF. Error Amp. Comp. OSC. ENABLE DRIVER 115 C5184 (-200V) FET V- FLYBACK DIODE GND Res. + V+ SIMPLIFIED POWER SUPPLY CIRCUIT, FUNCTION, DESCRIPTION.
The regulator IC has a built in reference voltage which is used by the error amplifier to set and hold the V+ constant. Solder connections on the J PRA are used to adjust V+ in steps of ±1.5V. The FET drive circuit avoids this problem by sensing flyback diode conduction.
The FET 136 works together with the transformer 166 to provide a low resistance current path from V- to GND. This low resistance coupled with no large voltage times current products is what makes the power supply efficient. Resistor 137 provides a means for sensing the FET current.
1N4937 1N5954B 1N4937 3.3nF 510 Ω D 27 5 .1-.5VDC .5-.8VDC 3-4VDC 3Vpp 47,D2 0VDC 27Vpp 57,F1 Hs 1-4VDC 12Vpp 50,E2 0.1VDC 1Vpp 51,F1 3-5VDC 5Vpp 52,F1 No DVM 300 Vpp 40,G1 0 Ω 198A 100uF 12 10 193K 12 4.67K 13 5.7-6.3VDC 16.3-19VDC OUTPUT 1 2 4 3 15 16 14 5 6 7 8 11 10 9 V- +7.
Equipment Setup For Repairing The Model XX93 Monitor. +17.1 DVM OSCILLOSCOPE ISOLATED DUAL 1A DC POWER SUPPLY CERONIX Model XX93 115 VAC Test Generator or Signal Source TRANSFORMER VARIABLE 1-4VDC 12Vpp 50,E2 No DVM 320 Vpp 40,G1 0 to 30V 0 to 30V ISOLATION TRANSFORMER Represents the XX93 board part number.
+17.1 DVM 115 VAC 1-4VDC 12Vpp 50,E2 No DVM 320 Vpp 40,G1 0 to 30V 0 to 30V { { { No. LTR.No. X X X-Y VDC X- Y V WAVEFORM X-Y VDC TP-REF. Vp-p Sync. No LTR.No . X-Y VDC X- Y V X-Y VDC TP-REF. Vp-p Wellenform X X Sync. { Hs - 5uS/div. Vs - 2mS/div. Ausrüstung Gegründet Für Die Reparatur Des Monitors Des Modells XX93.
SAFETY FIRST; Use only one hand when working on a powered up monitor to avoid electrical shock. POWER SUPPLY, TROUBLE SHOOTING TIPS. If the V+ crowbar zener 181 is shorted, a fault exists in the power supply which permitted the V+ line to exceed +160V.
Trouble Shooting Handbook The information that is written in this handbook is to help repair XX93 Monitors. Color problems. No video with power. No V-H sync.
Problem Probable Solution No Picture. Tests 1. 2. 3. 4. 5. The vertical booster pulse supplies part of vertical sync to the auto bias IC 927 . With no sync to pin 8 of 927 , vertical blanking is not reset. Note; Blanking should be > 5V. Measure blanking voltage on jumper 215 .
169 , 181 . Problem Probable Solution Retrace Lines . Tests 1. 2. 3. If any of the voltages are not in the listed voltage range, replace IC 927 . Measure voltage, auto bias IC 927 pins 2, 4, & 6 for 5.5V to 6.5V. 927 Also measure voltage, pins 3, 5, & 7 for 1.
.033uF, 854 1N4005 1N4005 62K,852 G2 GREEN 10 11 13 14 15 16 17 18 19 20 GAPS GND BLUE FIL. FIL. RED G1 903 0 Ω , 904 10uF 1K 855 100K, CF RED 853 0 Ω , 898 0 Ω , 896 0 Ω , 897 .015uF 901 0 Ω , 902 10uF 895 H400 899 906 + 7 6 5 8 9 10 11 12 1 5 6 7 8 9 10 11 12 2.
.033uF, 854 1N4005 1N4005 62K,852 G2 GREEN 10 11 13 14 15 16 17 18 19 20 GAPS GND BLUE FIL. FIL. RED G1 903 0 Ω , 904 10uF 1K 855 100K, CF RED 853 0 Ω , 898 0 Ω , 896 0 Ω , 897 .015uF 901 0 Ω , 902 10uF 895 H400 899 906 + 7 6 5 8 9 10 11 12 1 5 6 7 8 9 10 11 12 2.
SETUP AND CONVERGENCE PROCEDURE CAUTION: To avoid electrical shock, take care not to touch the yoke conductors or push against the anode cap. Use a knife to brake free the magnetic rings on the yoke, which are usually locked with red varnish. Bring the adjustment tabs on each pair of magnetic rings in line for the starting point.
1. 2. 3. 4. 5. 6. 7. 10. 11. 8. 12. 9. SETUP UND KONVERGENZ PROZEDUR Benutzen Sie eine scharfes Messer, um die magnetischen Ringe auf dem Joch frei zu bremsen, die normalerweise mit rotem Lack gesperrt werden. Holen Sie die Justagetabulatoren auf jedem Paar magnetischen Ringen in der Zeile für den Ausgangspunkt.
CERONIX, INC. 13350 New Airport Road Auburn, California 95602-7419 REPLACEMENT PARTS PURCHASE ORDER FORM CERONIX Part No. Description Price Quantity 1 2 3 4 5 6 7 8 9 10 11 12 BILL TO STREET & N0. CITY STATE ZIP SHIP TO STREET & N0. CITY STATE ZIP Phone No.
DEGAUSSING COIL ATTACHMENT SPECIFICATION. For The Model 1493 Video Monitor . Use degaussing coil part number CPS1766. With the degaussing coil leads centered on the bottom of the CRT, FORM THE COIL to avoid the remote control board. ATTACH THE GROUNDING STRAP FIRST.
Degaussing Coil & Grounding Strap Attachment Specification. For The Model 1793, 1993, 2093 Video Monitor. Yoke Connector. Plugs in main board left side of flyback transformer. Degaussing coil Connector Plugs in main board left side of fuse. Ground Connector.
Degaussing coil Connector Plugs in main board left side of fuse. Degaussing Coil & Grounding Strap Attachment Specification. For The Model 2793 and 3693 Video Monitor. Blue Red Brown Yellow Yoke Connector. Plugs in main board left side of flyback transformer.
Highpot, For Shock Hazards, Circuit Description. For the models 1493,1793, 1993, 2093, 2793, and 3693 video monitors. The MONITOR is connected to the enclosure ground via the signal cable, monitor support hardware, and the protective earth ground wire.
Highpot, Für Schock Gefahren, StromkreisBeschreibung. Für die Modelle 1493,1793,1993,2093,2793, und 3693 videomonitoren. Maschine, in der der Monitor benutzt wird. Der MONITOR wird an den Einschließung Erden über das Signalkabel, Monitor Stütze Hardware und den schützende Erde Erdungsdraht angeschlossen.
Wire Routing Instructions. Attach the protective earth , green / yellow, ground wire . Fold remote cable to clear CRT and add wire tie. Rout yoke wires over CRT neck. Shorten EHT wire and add wire tie. Shorten focus wire and add wire tie. Rout G2 wire aroun d CRT socket, shorte n with loop, and add wire tie.
23456789 1 0 1 2 1 3 1 4 1 5 1 6 1 7 1 8 1 9 2 0 1 4.67K J14 J6 J7 J17 J9 J10 J11 J1 2 J8 J2 J4 J3 J1 J13 J5 130 Ω Ω Ω Ω J15 J16 J18 POWER SUPPLY RESISTOR ARRAY. "J" P/N CPR0501 JC JD JA JB V- 1/2 Raw DC 17V V- i Sense FET Source +17V V- O.
110 Precision Resistor Arrays (PRAs). P/N CPR0510 Video Amplifier Resistor Array "K Film" K B C E 1234 13 14 15 16 17 18 19 20 1 2 3 4 5 6 7 10 11 12 13 14 8 9 NPN E NE592 Output B NPN 9.25V LINE GND VIDEO INPUT AUTO BIAS 127V LINE PNP E CAP.
111 Precision Resistor Arrays (PRAs). P/N CPR0511 Video Amplifier Resistor Array "BLUE Film" BLUE B C E 1234 13 14 15 16 17 18 19 20 1 2 3 4 5 6 7 10 11 12 13 14 8 9 NPN E NE592 Output B NPN 9.25V LINE GND VIDEO INPUT AUTO BIAS 127V LINE PNP E CAP.
2 3 VW X YZ 1 2 3 1 9 VW X YZ Vertical Amp. PCB CPB1615 1 2 3 4 5 6 7 8 9 10 11 12 13 605 604 607 606 609 608 610 611 E C .
DRIVE SIGNALS to the MONITOR INPUT voltage and waveforms, work sheet. CERONIX 13350 New Airport Road Auburn, CA, USA 95602-7419 Fax (530) 888-1065 Company name: Date: VIDEO: For the following measurements use an oscilloscope.
DECLARATION OF CONFORMITY C. CERONIX 13350 New Airport Road Auburn, California 95602 USA Manufacturer: Component Color Monitor. Models: 1493-CGA, 1493-VGA, 1493-SVGA. 1793-VGA, 1793-SVGA. 114 Equipment: 1993-VGA, 1993-SVGA. 2093-CGA, 2093-VGA. 2793-CGA, 2793-VGA.
ISO XFR-75W SAFETY ISOLATING TRANSFORMER ISO XFR-100W Models: 115.
Circuit Description. The fuse 506 protects the mains wires and the control PCB. The power transformer has two internal 2 amp temperature sensitive fuses. Each primary half has one, built in, series connected fuse. A resettable fuse 507 is connected to the relay driver power supply.
Fuse, 507 CPR0431 .1uF, 250V 517 2.2nF 520 2.2nF P6KE27A 4742A 502 4007, 50V Connect ORG to RED for 230VAC output. 509 Output PCB 500 RED YEL White 3A SLOW BLOW FUSE CPR0425 YEL / GRN GRN - Ground 234.
240VAC or 120VAC Relay Control Output 240VAC or 120VAC 50 or 60 Hz Input Die Inputzeile Spannung, an der das MosFet einschält, wird durch das MosFet einschalten Spannung eingestellt (über 4v). Die Spannung fällt über Widerstände T509 , T505 , T504 und die zenerdiode T503 .
Installation Instructions. 1. Mount the unit on a, grounded, flat metal surface using at least two screws. Note; The mounting surface should not have holes larger than 0.2" diameter under the enclosure. 2. Connect the mains cable to the Molex plug mounted on the enclosure.
CERONIX CHASSIS. The ISO XFR-75W/-100W MUST be grounded by mounting on a grounded, conductive surface via at least two screws. Connector: AC Line AC Line or neutral WARNING: Mains power and ground connections must be made before power is applied to the ISO XFR-75W or the ISO XFR-100W Isolation Transformers.
CERONIX CHASSIS. INSTALLATION Isolierung Transformator des XFR75W und des XFR100W. Stecker: Wechselstromzeile oder -neutrales. WechselstromZeile. Hauptlinie Spannung Lagebestimmung Prefered für das optimale Abkühlen.
0.92" 3.66" 0.25" 0.56" 4 PL. 0.56" 4 PL. 2.94" 2.94" 6.38" 5.26" 4.75" 4.25" 0.25" 0.375" 2.10" .50" 2.10" 0.328" 0.933" 0.32" 0.45" MATERIAL: FINISH: TOLERANCE: DIMENSIONS IN INCHES.
0.325" 0.45" NOTE: When box is placed on a flat, the highest point shall not xceed 0.015". 0.200"DIA. Holes on a 0.375" grid. 20PL. 0.50" 0.35" 0.375" 0.933" 2.40" 0.45" 0.45" 0.55" 6.15" 5.
SAFETY FIRST; Always wear safety glasses when working on powered up electronic equipment. Use only one hand when working on a powered up ISO XFR-75W, ISO XFR-100W to avoid electrical shock. Equipment setup for trouble shooting the ISO XFR-75W, ISO XFR-100W Isolation Transformers.
Erden 100W 120V 2A Fuse 100W 120V Erden Vorrichtungen haben zum Lösen von Problemen mit dem 75W und dem 100W Isolierung Transformatoren benutzt. SICHERHEIT ZUERST: Um elektrischen Shock zu vermeiden, benutzen Sie nur eine Hand beim Arbeiten auf einem angeschaltenen Transformator 75W oder 100W.
Connect ORG to RED for 230VAC output. 502 509 Output PCB 500 520 517 RED YEL White 3A SLOW BLOW FUSE CPR0425 YEL / GRN GRN - Ground 234 765 Input GRY Blue 1 8 BLK WHT BRN G D S 514 + 508 519 Brown Inp.
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Een belangrijk punt na aankoop van elk apparaat Genius ISO XFR-75W (of zelfs voordat je het koopt) is om de handleiding te lezen. Dit moeten wij doen vanwege een paar simpele redenen:
Als u nog geen Genius ISO XFR-75W heb gekocht dan nu is een goed moment om kennis te maken met de basisgegevens van het product. Eerst kijk dan naar de eerste pagina\'s van de handleiding, die je hierboven vindt. Je moet daar de belangrijkste technische gegevens Genius ISO XFR-75W vinden. Op dit manier kan je controleren of het apparaat aan jouw behoeften voldoet. Op de volgende pagina's van de handleiding Genius ISO XFR-75W leer je over alle kenmerken van het product en krijg je informatie over de werking. De informatie die je over Genius ISO XFR-75W krijgt, zal je zeker helpen om een besluit over de aankoop te nemen.
In een situatie waarin je al een beziter van Genius ISO XFR-75W bent, maar toch heb je de instructies niet gelezen, moet je het doen voor de hierboven beschreven redenen. Je zult dan weten of je goed de alle beschikbare functies heb gebruikt, en of je fouten heb gemaakt die het leven van de Genius ISO XFR-75W kunnen verkorten.
Maar de belangrijkste taak van de handleiding is om de gebruiker bij het oplossen van problemen te helpen met Genius ISO XFR-75W . Bijna altijd, zal je daar het vinden Troubleshooting met de meest voorkomende storingen en defecten #MANUAl# samen met de instructies over hun opplosinge. Zelfs als je zelf niet kan om het probleem op te lossen, zal de instructie je de weg wijzen naar verdere andere procedure, bijv. door contact met de klantenservice of het dichtstbijzijnde servicecentrum.
