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M992 DELL IS THE MARK IN THE CHASSI.
CESAR VARGAS HELP YOUR
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VT21B-DG Schematic
CN201 slcon15p 1 2 +5V +12V BD280 C280 100nF 50V 1 MO 2 3 4 IC280 KS24C080 8 7 6 5 R280 100 1/6W 8 R282 SCL G1 7 W_PROTECT 6 R284 100 1/6W +6.3V +80V B 4 5 3
+12V
+5V_1 R281 100 1/6W
H_FLB SDA V_SYNC_OUT 1.5K
9 1/2W 10 11
R220 12K RESET C207 Delete on CF21M 100nF 50V MO 1/6W
ZD201 MTZ7.5C
C201 100nF 50V
C202 100UF 16V
+5V_1 CLAMP
12 SCL 13 SDA R211 3.3K 1/8W R209 3.3K 1/8W R200 3.3K 1/8W R243 15K 1/6W R242 15K 1/6W R240 2.7K 1/6W R238 2.7K 1/6W S1 41 40 DC_FOCUS 15 14
IC201 KS88P6232N 1 42
ABL
W_PROTECT 2 BNC_DSUB R215 4.7K 1/8W 3 H_LIN 4 TILT C210 47UF 16V C208 100nF 50V MO C209 1uF H_SUBSIZE H/V_ADJ 9 X-RAY C216 10NF 50V C220 4.7uF 50V R229 1K 1/8W KEY1 R231 1K 1/8W R230 R228 1/6W 1/6W 200 13 200 14 KEY2 USBDM USBDP R270 R271 R272 R227 18 H_SYNC_IN 100 1/6W 19 20 ABL 100 1/6W C212 100pF MO MO 50V R225 1M 1/6W C211 1nF 50V 100 100 1.5K 1/6W 15 1/6W 16 1/8W 17 12 +5V D254 1N4148 R219 3.3K 1/8W R233 4.7K 1/8W 11 10 50V R221 10K 1/8W 8 R218 R216 4.7K 1/8W OTHER R214 10K 1/6W 3.9K 6 1/8W 7 19NS 2.2K 5
W_PROTECT BNC/DSUB
S1 GND
C284 100pF 50V
C283 100pF 50V
CN209 slcon1p 1
H LIN DETECT_12V TILT
RESET C281 S2 S3 39 S2 38 37 S3 R203 150K 1/6W 10nF 100V P 1 CN210 slcon1p
H_SUBSIZE RESET H/V_ADJ S RAST
S4 S5 36 R210 35
16
100 1/6W
S4 S5 S_RASTER 34 LED 24MHZ Q1 R206 4.7M Q0 1/6W C204 33pF 50V C203 33pF 50V 30 R239 100 1/6W DEGAUSS 3 SDA SCL 5 DDC_DATA DDC_CLK DDC_CLK R204 100 1/6W BB 24 23 CC R278 100 1/6W SOG_SYNC ZD280 V_SYNC_OUT UZ6.2BSB ZD281 UZ6.2BSB ZD282 UZ6.2BSB ZD284 UZ6.2BSB ZD283 UZ6.2BSB ZD285 UZ6.2BSB 22 CN203 slcon8p OEM R222 R205 3.9K 100 1/6W AA 1/6W S_RASTER 8 DDC_DATA 6 7 5 5 4 H_SYNC_IN H_SYNC_OUT R207 56 56 1/8W 1/8W 4 4 3 29 R237 100 1/6W SOG_SYNC R236 100 1/6W 2 CN211 slcon5p 3 2 2 1 V_SYNC_IN CN212 slcon5p 1 DDC5V 1 +12V +5V X201
CN202 slcon16p SYNCMASTER
X-RAY ABL
LED OSC IN OSC OUT 33 32 31
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
KEY1 KEY2 VDD USBVCC
DEGAUSS SDA SCL
USBDM USBDP GND
DDC DATA DDC CLK CLAMP BB AA CC
28 27 R208 26
HSYNCIN VSYNCIN VSYNCOUT
25
17
R226 V_SYNC_IN
21
H SYNC OUT
SOG IN
ZD286 ZD203 UZ6.2BSB C213 100nF 50V ZD204 UZ6.2BSB C214 100nF 50V BD202 B BD203 B BD204 B BD208 B DDC5V +5V_1 +5V LED A BD207 B BNC_DSUB BD206 B BD205 B D202 1N4148 CLAMP 1N4148 ZD236 UZ4.7BSA 2 USBDM 3 USBDP 4 5 R283 270 1/6W OP201 LTL-10233W B 2 KEY2 4 5 KEY1 3 2 UZ6.2BSB D201 H_SYNC_OUT CN205 slcon5p 1 CN204 slcon10p 1
+5V
6 7
13
D281 R250 100 1/6W 1 H_SYNC_OUT R251 100 1/6W V_SYNC_OUT R252 H_SIZE D250 1N4148 3 30 2 VSYNC-IN SDA 31 H_HV-IN V_Focus 32 R267 1/8W 56 R266 HlockOut SCL 1/8W 56 C250 100nF 50V C251 10nF 100V P Q252 R273 10K 1/8W B CC E C272 10NF 50V R274 560 1/8W C256 10nF 100V P H_FOCUS 12 Hfly C258 100pF 500V R255 2.2K 1/8W H_FLB C260 C257 1nF 100V P 16 Isense HEHTcomp 17 E 100nF 50V MO 15 Reg-In VEHTcomp 18 C259 10uF 16V R256 90K 1/4W MF 14 19 C264 16V 47uF B C Q254 C265 13 Href VAGCCAP 20 470nF 63V MP Comp VRB VGND C254 4.7uF 50V R254 1K 1/8W C253 27nF 100V P C R253 5K 1/4W MF 9 PLL1F EWout 24 8 RO Xray 25 R285 KSC945-Y C252 0.82NF 50V MO 7 Hgnd Hout 26 B R264 120K C 1/6W C286 10NF 100V P 10 H-pos VOUT C266 11 HVFocus VCAP 22 150nF 100V P 21 R261 10K 1/8W R275 10K 1/8W R276 47K 1/6W AQ19N* ONLY CF21 : R286 = Jumper E 23 V_OUT +12V +14V Q253 EW_OUT 6 CO GND 27 MO 5 PLL2C Bout 28 R268 4.7K 1/8W R265 1.2K 1/8W C270 100nF 50V C268 10uF 100V E Q251 KSA733-Y E B C Q250 KSC945-Y 4 FC1 VCC 29 AQ19N* ONLY BD201 +12V SCL B SDA IC250 TDA9112 R269 1/6W 100 V_FOCUS +12V C269 10uF 50V C285 100nF 50V MO 1N4148 D282 SB020
8 JP332/JP575/JP594 JP586/JP698 Delete on 21" 9 10
JP221/JP538/JP539/JP540/JP541/JP551/JP552/JP553/JP554 JP561/JP562/JP580/JP584 Delete on 21"
27K 1/8W
CN206 slcon13p +5V ABL CN207 slcon3p 1 H_DRIVE TEMP 2 3 4 5 TEMP 1 2 3
+5V
6 RESET 7 SDA 8 SCL 9
9
C255 1uF 63V MP
22K 1/6W
R286 22K 1/6W
KTA1281-Y C
-14V
10 11 12
B
+12V
13
10
ZD287 ZPD5,6
R277 2.2K 1/8W
C273 100UF 16V
KSC945-Y
VT21B-DG Schematic
VarTech Systems - 11529 Sun Belt Ct.- Baton Rouge, LA 70809 - Phone: 225-298-0300
160-007 - Page
1
9 IC250, #24
10 IC250, #23
13 2.20 V (IC250, #11, 32)
16 3.42 V (IC201, #33)
17 3.16 V (IC201, #32)
CH1 P-P = 2.20 V CH1 RMS = 2.776 V
CH1 P-P = 3.42 V CH1 RMS = 2.500V
CH1 P-P = 3.16 V CH1 RMS = 2.560 V
VT21B-DG Schematic
VarTech Systems - 11529 Sun Belt Ct.- Baton Rouge, LA 70809 - Phone: 225-298-0300
160-007 - Page
2
+12V
+30V
+350V
+80V
14
D598
HIGH_VOLTAGE SCREEN FOCUS(RED)
L502 4.7uH C503 470uF 16V 105C RGP02-12(T) L501 33uH 1 EY503 EYE1.5 C513 2.2uF D505 C504 100uF 16V +6.3V -210V 9 8 ZD520 10 D523 1N4148 6 11 Q520 E AA B C 3 14 G1 D521 1N4936GP D520 1SS244 R520 1/4W 75K C506 15 220nF 63V 16 MP C520 15nF 250V P R521 270K 1/4W R522 1/4W 17/19NS OTHER 200K MF 150K R523 1M 1/2W R524 8.2K 1/4W MF X-RAY R525 1.2K 1/4W MF C562 47uF 50V R505 8.2K 1/8W D503 R506 5.1K 1/6W D561 1N4148 1N4148 D522 D532 C H_DRIVE D501 R501 1.5K Q450 KSA733-Y 1/8W C501 56nF 100V P +12V D451 C B 17/19NS 6.8uF OTHER 4.7uF R450 E C452 4.7nF 100V P C453 680pF 50V MO R453 1/8W 18K D453 R454 1.5K 1/8W R455 12K C454 1nF 50V C456 1nF R490 H_SUBSIZE 18K 1/4W MF ONLY 10K OTHER OPEN EW_OUT R402 1.2K R459 24K 1/4W MF 1/4W R460 12K 1/4W MF R462 H_SIZE R461 4.7K 1/4W 18K 1/4W MF Q451 D478 1N4148 KSC945-Y B C E E C464 33nF 250V P R465 100 1/2W B C462 27nF 100V P R464 1K 1/4W C E G Q454 SFP9634 D R467 2.2 1/2W C460 27NF 100V P 19NS D454 1SS244 Q453 KSA733-Y D456 UF5404L-5709 P FU 100V 1.2nF C467 R303 C310 5.60NF 100V P 0.9 2W WW R305 1.5K 1/4W C309 TILT P Q452 KSC945-Y B C R463 1K 1/4W C463 47uF 25V 100V PP C458 10NF 50V 1/6W 750 1/6W C457 100V MO 330pF 560pF 7 OPEN R457 10K 8 1/8W C459 100nF 50V MO R468 4.7K 1/8W L400 33uH HS401 SUPLVAL R313 ZD450 UZ12BM S C465 10NF 500V C466 10uF 250V 105C R315 1/4W 17IS 150 OTHER 120 150 17IS 6.2K 17/ 19NS 7.5K OTHER 6.8K R302 1/4W MF 6.2K R304 330 1/2W H_LIN 100V 56nF 5 0-5v_2 GND1 GND2 12 9 GND3 6 R440 33 1/2W IC403 Vcc1 Vcc2 AN5452 4 0-5v_1 AN5451 10 11 1 2 Vcc3 3 7 8 C440 3.3uF 50V 3 2 1 (TILT) CN409 slcon3p +12V R441 33 2W MO 1/4W 8.2K MF C301 1000uF 16V 105C C302 100nF 50V MO D301 UF4001(T) C303 220uF 35V 105C R307 100 1/6W R306 1 1/2W C306 R314 1/4W MF R301 1/4W 15K MF 2K 17/19NS 2.4K 17IS 2K OTHER 2.2K C312 1uF 63V MP 1uF 63V MP +12V C307 100nF 100V P C308 1000uF 16V 105C C550 100pF 50V R553 1.5K 1/4W (4.99V) REF +210V (11.68V) VCC D303 1N4148 1 HS301 heat_sink 1/6W H_FOCUS E Q553 KSC2316-Y V_FOCUS 1 R668 1N4148 R456 75K 1/6W (7.54V) GND 5 +5V 1 (2.43V) CMP VF R312 1.2 4 (1.3V) RC 1/2W FU IC301 VOUTPUT KA2142 VCC_H C451 6.8uF 50V R452 330K 1/6W D452 1N4148 R451 4.7 1/4W C450 100uF 16V 75K 1/6W IC402 KA3843B C B C305 2 E 4.70NF 100V P R309 8.2K 1/6W R308 10K 1/6W D551 1N4148 E Q301 KSC945-Y 3.3K 1/6W D302 1N4148 V_SYNC_OUT B +14V_V R311 1K 1/6W R310 V_FLB C551 150nF 100V P C R555 4.7K 1/2W Q551 TIP29C HS508 heat_sink C552 220nF 100V MP R557 100 3W MO 5 6 8 1N4148 D450 1N4148 1N4148 B R526 10K 1/8W C510 100V P OTHER OPEN +30V -14V 1nF E Q521 2N3904 1N4148 C502 10nF 100V P R502 12K 1/6W R558 100 1W MO C507 100nF 50V 1/6W 6.2K R527 HTC_ FBT +80V R561 12K 1/6W R531 470K 1/4W MF R532 270K 1/4W MF 1N4148 ZD521 UZ7.5BM H/V_ADJ 1 R504 390K 1/6W C509 47UF 16V R509 5.1K 1/6W HS504 heat_sink 1 2 C508 47UF 16V 1 EY501 SNAME EY502 EYE2.2 1 EY512 EYE1.5 2N6520 4 5.6K 1/6W 12 B R507 +30V 13 1K 1/8W R508 1.5K 1/8W R510 C Q503 2N3906 470 1/6W R512 0.33 1W WW 5 7 UZ-4.7B R503 E B E C505 10nF 50V TL494CN IC501 Q502 C 2N3904 GUR460L-5700 D504 B 1N4148 C511 1nF 2KV PP D507 GUR460L-5700 C514 680PF R511 6.8 1/4W G S Q504 2SK2761-01MR R515 33K 1/4W C512 47uF 50V C516 220uF 100V 105C 7 8 D509 UF4004 1 EY505 EYE1.5 6 9 BD532 D 4 D508 RGP02-16E C515 680PF 5 10 1KV 12 1KV D510 UF4004 BH27-00027A R516 33 7W CE 3 11 350V L503 1 EY504 SNAME 2 14 1 15 T501 HITACHI
FOCUS(WHT) -210V SCREEN
EY508 1 EYE1.5 EY510 EYE1.5 1 1
EY509 EYE1.5
12
13
SK530 SSG-102B2
EY511 1 EYE1.5
1
EY507 EYE1.5 EY550 SNAME R560 1
D530 RGP02-12(T)
5.1K 1/6W
C531 3.3uF 50V
C530 2.2uF 350V
1
EY506 SNAME ABL
V_FLB
+350V
R596
1/2W
33K
17/19NS 150K 21" JUMPER C533 100NF 250V MP C532 2000NF 100V P SCREEN C599 10nF 500V R598 1/4W 180K
C598 10nF 500V
R599 1/2W 300K 17/19NS180K 19MS 240K OTHER 220K
R597 1/2W 19MS 30M OTHER 15M 1 EY599 SNAME CN501 CC
D599 RGP02-12(T)
C540 T502 EE 1916(5P) 1 R541 180K 1/2W R543 470K 1/2W 4 R542 180K R556 47 1/2W D553 1N4148 C559 E B Q552 TIP30C +12V 100pF 1KV CC R550 470K 1/2W CC 1nF 1KV +350V
2
(2.49V) (0.23V)
SENSE
3
11
C304 1uF 50V Vin+ R316 1.2 1/2W FU EY301 EYE2.2 EY302 EYE2.2 1 R551 4.3K R552 120K 1/6W B C D552 1N4148 Vcc_L GND VinF.G
1/2W
19MS OTHER
6
17/19NS
OUT
2
3
4
5
6
7
8
9
10
C
HS509 heat_sink R545 12K 1/6W B E D540 1N4148 R546 1K 1/8W R547 1K 1/8W C Q540 KSP44
+12V
+12V
3
R466 2.7K 1/4W
OTHER 27K
V_OUT
OTHER RG10 H_FLB
CN401 slcon4p 1 EY409 EYE1.5 +29V C461 220pF 1KV T402 EI-2820 Delete on 21" R435 TCO slcon1p 1 CN407 slcon1p 1 R401 3W MO 100 19NS 82 CN408 slcon1p 1 CN416 slcon1p CN417 slcon1p 1 1 R403 CM 5W 33ohm OTHER OPEN R400 19NS 82 OTHER 5.6 17NS 10 1 E 4 5 C406 330nF CN415 slcon1p CN420 2 7 R406 10 1/2W 1 +80V D401 UF4004 8 C404 C401 100uF 100V 105C Q401 R404 H_DRIVE 220 1/6W SKS4N20 G S C402 100pF 500V OTHER 560 C403 1nF 500V C407 330nF 100V MP D408 UF4001(T) R409 3W MO 1.2 R444 3.3 1/2W C433 100nF 50V MO C412 220nF 63V MP EY413 SNAME EY412 SNAME 1 1 HS409 SUPLVAL E D R405 330 1/2W 27nF 100V P 19NS D402 1 SB540L-5705 EY411 EYE1.5 HS402_1 heat_sink 3W MO slcon1p 1 3 6 100V MP R407 1.2 1 slcon1p CN421 1 R408 10 3W MO 1 1 1 3W 100 MO CN414 slcon1p 1 C405 T401 19NS EI-2519 2.7mH EYE1.5 EY420 100V MP B 1 C Q402 2SC5584 2SC5583 FJL6820 EY415 1 EYE1.5 HS402 SUPLVAL EY401 SNAME EY402 SNAME EY403 SNAME EY404 SNAME EY405 EYE1.5 1 19NS 2.2NF OTHER 2NF 19NS 2.7NF OTHER 2NF C411 MPS 400V 120nF 17/NS 100NF 17/19/IS 100NF OTHER 120NF 1K 1/8W C B Q408 KSC945-Y 1.2K 1/6W R423 D406 UF4007 10F150S C408 2.5KV PP 2nF C409 2.5KV PP 2nF D405 UF4007 VR401 vr3 100ohm 47 R413 1/2W 47 R412 1/2W AQ19FS: DELETE D403 1 SDS10U150S CN412 330nF 330 5 4 3 2 1 1/2W C468 100pF 2KV HORZ-DY L403 3 4 5 4 EY440 SNAME 21" 3.5uH(BH26-00071A) 19NS 3.9uH 1 1K 1/8W C 3 R434 Q412 KSC945-Y R433 B E 17HS 560NF 19NS 680NF OTHER 470NF 19NS 1.2uF OTHER 1uF 19NS 180NF 19MS/IS 120NF OTHER 100NF C418 400V 68nF P R427 18K 1/6W Q411 R420 Q406 SKS10N20 D G S S G S D G Q407 SKS10N20 G S Q403 R414 100K 3W MO D407 UF4004 1K 1/8W R424 18K 1/6W E C B Q409 KSC945-Y 1.2K 1/6W R431 S3 R430 S2 SKS10N20 S Q404 SKS10N20 R422 1K 1/8W R425 18K 1/6W Q410 E KSC945-Y 1.2K 1/6W C B R429 S1 G R421 1K 1/8W R426 18K 1/6W E 1.2K 1/8W KSC945-Y C B R432 S4 1.2K 1/8W S5 1 2 6 7 8 9 R428 18K 1/8W
7
1
EY408 SNAME
2
1
17HS 300NF 1 SNAME EY441 19NS 300NF OTHER 180NF
BD401 1.2UH,3.5_5.7MM L402 17/19/NS 2.7mH OTHER 3.5mH
EY410 SNAME 1 MO 2W 150 D404 UF4007 R410
C410
B
500V 1NF CN411 1
C414 1uF 250V MPS C415 560nF 250V MPS C416 300nF 250V MPS Q405 SKS10N20 D D D
C417 150nF 250V MPS
OTHER EI-2218 2.5MH
8
R411
75ohm CE 5W
C413 400V 120nF MPS 17HS 120NF 19MS 120NF OTHER 100NF
6
5
OTHER SB340
4
17/19NS OTHER 1ohm
VT21B-DG Schematic
VarTech Systems - 11529 Sun Belt Ct.- Baton Rouge, LA 70809 - Phone: 225-298-0300
160-007 - Page
3
2 IC402, #6
3 Q454, drain
4 Q401, Gate
5 Q401, Drain
6 Q402, Base
CH1 P-P = 10.96 V CH1 RMS = 6.180 V
CH1 P-P = 11.6 V CH1 RMS = 6.944V
7 Q402, Collector
8 T402, #8
11 IC301, #6
12 Q504, Gate
14 580 V (T501, #1)
CH1 P-P = 580 V CH1 RMS = 278.2 V
VT21B-DG Schematic
VarTech Systems - 11529 Sun Belt Ct.- Baton Rouge, LA 70809 - Phone: 225-298-0300
160-007 - Page 4
Main Part Schematic
CEPHEUS PROJECT POWER CIRCUIT WARING: BEFORE SERVICING THIS CHASSIS,
CAUTION WARNING: 1. THE AREAS MARKED WITH A IN THE SCHEMATIC "THIS EQUIPMENT CONTAINS SAFETY
READ "X-RAY RADIATION PRECAUTION,SAFETY
CRITICAL COMPONTS ALL PARTS SHOWN IN THE SHADED AREAS OF THE SCHEMATICARE SAFETY REPLACE SAFETY CRITICAL COMPONENTS ONLY WITH MANUFACTURERS RECOMENDED PARTS LIST FOR EXACT REPLACEMENTS". NOTE 1. RESISTANCE IS SHOWN IN OHM K=1000, M-1000000. RATED POWER OF RESISTOR NOT NOTED IN SCHEMATIC DIAGRAM IS 1/6W.
PRECAUTION, PRODUCT SAFETY NOTICE".
DIAGRAM AND THE PARTS LIST DESIGNATE COMPONENT WHICH HAVE SPECIAL CHARACTERISTICS IMPORTANT FOR SAFETY AND SHOULD BE REPLACED ONLY WITH TYPES IDENTICAL TO THOSE IN THE ORIGINAL CIRCUIT OR SPECIFIED IN THE PARTS LIST. BEFORE REPLACING ANY OF THE COMPONENTS, READ CAREFULLY THE "PRODUCT SAFETY NOTICE".
2. DRAWING A NUMEROUS MEASUREMENT OF THIS MONITOR MATTERS THAT DEMAND SPECIAL ATTENTION IS FOLLOWING 1)DO NOT USE YOUR INSTRUMENT BETWEEN PRIMARY GROUND (SYMBOL ) AND SECONDARY CIRCUIT.
2. CAPACITANCE IS SHOWN UF AND NOT NOTED CAPACITANCE IS SHOWN PF. 1UF=1000000PF. RATED VOLTAGE OF CONDENSER NOT NOTED IN SCHEMATIC DIAGRAM IS 50V. 3. ABBREVIATION AND SYMBOL MO:R-METAL-OXIDE WW:R-WIRE WOUND FU:R-FUSIBLE MF: R-METAL FILM MO:C-MONOLYTIC NPO:C-NPO PP:C-POLYPROPYLENE MP:C-M.POLYESTER MPP : C-METAL POLYPROPYLENE T:C-TANTALIUM SECONDARY GROUND BD651
+12V
19"FST DEL R650 390 1/4W B
+14V Q670 KTA1281-Y C E +14V_V
2)DO NOT USE YOUR INSTRUMENT BETWEEN SECONDARY GROUND (SYMBOL ) AND PRIMARY CIRCUIT.
AVERTTISSMENT: " CE RECEPTEUREST EQUIPE DE COMPOSANTS CRITIQUES POUR LA SECURITE TOUTESLES PIECES INDIQUEES DANS LES ZONES OMBREES DU SCHEMA SONT CRITQUEPOUR LA SECURITE DE LAPPAREIL NE REMP LACER LE FABRICANT DONT LE FONCTIONNEMENT EST CRITITE QUE PAR DES PIECES RECOMMANDEES PAR LE FABRICANT CONSULTER LA NOMENCLAYURE DES PIECES POUR TROUVER."
P:C-POLYESTER PRIMARY GROUND
KA78R12 2 Vout Vin 1 R672 R673 2.7K 1/6W
4. THE SECONDARY VOLTAGE IS READ WITH SSVM FROM INDICATED POINT TO SECONDARY GROUND ( )
C652 220UF 16V
3 GND Vc
4
47K 1/6W
THE PRIMARY VOLTAGE IS READ WITH SSVM FROM D670 INDICATED POINT TO PRIMARY GROUND ( ). C653 5. THIS SCHEMATIC DIAGRAM IS SUBJECT TO CHANGE WITHOUT NOTICE FOR FURTHER IMPROVEMENT. EY6 +12V EYE2.2 HS651 EY61 EYE2.2 1 heat_sink 100nF 50V Q671 KSC945-Y E 1 R674 10K 1/8W C B BZX79C5V6
B
CC:R-COMPOSITION
IC651
+12V
R603 33 1/2W D602 1N4148 R604 C 10K 1/8W B TO DEGAUSSING COIL 1 RL601 G5PA-1 3 3 2 2 4 E Q601 KSC1008-Y DEGAUSS R651 4.7K 1/8W 33269T IC650 MC7805CT INOUT GND C650 100UF 16V C651 10NF 50V BB +14V_I +5V
1 slcon3p 3 CN601
POS601 J503P61D4R5Q270S 17NS/19MS 10ohm 19NS 4.5ohm OTHER 9ohm CN602 slcon1p EY607 TH601 EYE2.2 D601 D5SB60 2 3 1 4 HS602 heat_sink WITH PFC 450V 220uF EY608 19NS D5SB60 OTHER D3SBA60 EYE2.2 1 1 R670 240K 1/2W C607 220uF 450V R671 240K 1 1/2W CC C611 220pF 1KV D604 UF4007 EYE1.5 EY613 5 14 CC C610 10nF 500V B ZD631 P6KE200ATA R606 100K 1/2W R607 120K 1/2W 3 EY614 EYE1.5 4 15 1 16 D641 UF5404 +14V HS606 heat_sink C641 1000uF 16V R676 2.2K 1/8W D642 UF1G C642 1000uF 16V 7 IC601 DP308P 4 F_B DRAIN 1 BD604 D606 TVR10G 8 11 1 SNAME EY616 12 105C C 1 R677 1K 1/8W 2 17 (JP691) BD603 1.2UH,3.5*5.7MM 1 T601 19NS EER4042 D640 18 1 EY615 EYE1.5 UF4004 C654 1000uF 16V 105C +14V_I
OTHER ER3942
CN603 slcon1p
1
SKC-084
1
R609 1.2 1/2W
6
13
E B Q672 KTA1281-Y R675 0.56 1/2W +6.3V
2 3
GND 9 Vcc SYNC 5 C612 100pF HS601 heat_sink CN604 slcon5p 1 5 4 D605 1KV CN608 slcon1p
10 D644 RG10Z-V1 C643 470UF 16V
-14V
R608 6.8K 3W MO D645 31DF6 UF4007 HS60 heat_sink +80V R644 56K 1/2W CN609 slcon1p D646 UF4004 +29V C644 220uF 100V 105C
EY609 EYE2.2 EY610 EYE2.2
1
1 EY611 EYE2.2 1 EY612 EYE2.2
R688 10K 1/8W
3
1
2 1
CF21MS=JUMPER C608 33uF PFC CIRCUIT (Wiyhout PFC use JP709/710/711/712) R601 1/2W 150K R602 1/2W 150K D703 1N5397GP C614 2.2nF 125V C649 470pF 1KV C706 100nF ZD706 UZ16BM BD602 ZD705 1 5 C602 1000nF 275V MP EY704 SNAME B 1 1 EY703 SNAME HSD701 heat_sink B 2 L701 C702 220nF C701 4 3 17/19NS OTHER 470NF FUSEHOLDER FG601 EY601 SNAME EY602 SNAME R701 0.33 4 2 LC601 IM-L03A2-P 1 3W WW 1 1 R702 9.1K 1/4W MF C705 1nF 100V P ZD630 1 AC INPUT 90V ~ 264V 1 R712 10 EY603 EYE2.2 EY604 EYE2.2 1/6W MTZ7.5C D620 1N4148 4.7nF 100V P 330 1/8W 275V MP 1000nF C703 560PF 50V 63V MP IC701 MC33260P 1 FEED VCC8 2 V 3 OUT 7 G R703 1/6W 10 R721 47K 1/6W HSQ701 heat_sink R706 680K 1/2W C621 100nF R620 105C 270 1/4W 100V P 3 4 2 C622 R621 H_DRIVE S R705 680K 1/2W T620 BH26-30302S C620 1uF 50V 1 5 D621 1N4148 C656 100nF 50V D704 1N4148 D 07N60S5 (MULTI:2SK761) Q701 BD652 D701 MUR460 R704 680K 1/2W UZ12BM 50V MO C708 22uF 50V 105C R711 10 1/4W FU R649 1/2W 470K CC R655 1/2W 470K CC +14V_I R656 100 1/2W D650 RGP02-12(T) 50V 105C C609 100nF 50V MO ZD601 MTZJ27D-T-72 R605 1.2K 1/4W C613 2.2nF 125V D647 RG4C
1
C645 470UF 35V 105C
+210V C646 47UF D702 TVR10G 10 8 1 6 EY705 SNAME 250V 105C R628 180K 1W CC C629 10nF 500V
C603 2.2nF 125V
C604 2.2nF 125V
ER-2828 T701
C627 2.2nF 100V P R629 6.8K 1/6W
IC620 LTV817M-SM ANODE COL R623 C655 10nF 100V P C624 22nF 100V P R622 1.5K 1/8W CATHODE EMT 1K 1/8W
C625 100uF 16V R625 220K 1/6W C628 15nF 100V P
BD653 1.2UH,3.5*5.7MM L601 1
K R624 220 1/4W A
IC621 TL431CLP R R626 2K 1/4W MF R627 200 1/4W MF
CT
6 GND
4 SENSE 5 SYNC
MO
Q620 C KSC945-Y B
R631 2K 1/8W CC
E
R630 2K 1/8W
VT21B-DG Schematic
VarTech Systems - 11529 Sun Belt Ct.- Baton Rouge, LA 70809 - Phone: 225-298-0300
160-007 - Page
5
1 368 V (IC601, #1)
VT21B-DG Schematic
VarTech Systems - 11529 Sun Belt Ct.- Baton Rouge, LA 70809 - Phone: 225-298-0300
160-007 - Page
6
Video Part Schematic
+5V +5V 12V +5V 5V Q105 KTA1281-Y C E CG control
19
L106 4.7uH C128 10nF 50V MO IC103 S5D2509X09-S0 1 2 BD109 1.2uH B R123 30M 1/4W CC 3 R128 5.6K 1/10W R129 12K 1/10W 1C 4 1D R130 6.8K 1/10W 5 1E 6 1F R132 1K 1/10W SDA 7 1G 8 1H 9 1I SCL R133 1K 1/10W C129 100PF 50V MO C130 100PF 50V MO 10 1J 11 1K 12 1L R137 Delete R138 F_CONT C131 100nF 25V MO R136 4.7K 1/10W 10K 1/10W C132 1uF 50V H_CG C133 1uF 50V 12V Highlight Zone Use JP103/JP105/JP106 L100 27uH OSDSW +5V +5V +5V CLP L102 1.5uH C114 100pF 50V C115 100UF 16V IC101 C142 100UF 16V +5V C104 470uF 16V C113 220uF 16V L101 0.47uH R106 68 1/4W 12V_B 10K 1/10W V_CG 1M H_FLB 1N 13 2N 14 2M 15 2L 16 R144 3.9K 1/10W ACL_ADJ C137 4.7uF 50V 2K 17 2J 18 R142 330 1/10W R143 220 1/10W V_BLK C100 100PF 50V MO 2I 19 R141 330 1/10W OSDSW 2H 20 R140 330 1/10W BOSD 2G 21 1B 2F 22 R139 330 1/10W ROSD GOSD ZD103 BZX79C5V6 24 1A 2E 23 INT R120 10K 1/10W B B BD111 C134 100nF 25V MO
C135 100UF 16V
R121 47K 1/10W
C140 100UF 16V
CN104 slcon2p 1 +5V 12V 2 R145 10 1/2W R146 10 1/2W Vcc1 Vcc2 1 2 Vcc3 IC106 AN5451 3 7 8 10 11 GND2 GND3 R148 56 2W MO 6 slcon4p CN103 12 9 R147 C138 47uF 16V CN105 slcon2p 1 2 (3711-002348) 56 2W MO 1 2 3 4
B R122 1.5K 1/10W C Q106 KSC945-Y E C122 220UF 16V C123 100nF 25V MO
H_FLB2
4 0-5v_1 H_CG +5V V_CG C124 10nF 100V P H_FLB1 GND1 5 0-5v_2
R126 470 1/10W
R125 2.7K 1/10W
R131 1K 1/10W B D101 1N4148
H_FLB2 C Q104 E 2N3904
80V 12V_A 12V
+5V
BD103 C108 15PF 50V MO C110 100nF 25V MO C111 100nF 25V MO B C112 470uF 16V DR03 BAV21 IC105 2412T RG06 150 1/10W 7 GND G-IN R-IN RR06 100 1/10W B-IN RG05 390 1/10W RB06 100 1/10W 10 VBB 11 VIN1 27 VCC 8 VIN3 9 VIN2 29 CG03 100nF 25V MO 1 VOUT1 2 GND1 3 VOUT2 4 GND2 5 VOUT3 6 C144 10NF 100V P Delete C116 10uF 100V HS2 heat_sink 105C R-OUT B-OUT RB08 22 1/10W RR08 22 1/10W LB01 0.15uH CR04 1uF 160V RR11 100 1/10W RG11 100 1/6W DG03 BAV21 DB03 BAV21 C117 10uF 100V 105C RR12 47 1/2W RR09 270K 1/4W RG09 270K 1/4W RB09 270K 1/4W
H H2IC1 G1G2G3 G4 IC2 4 5 6 7 8 9 10 11
SK106 AQ17NS
15 20
3BK 2 GK 1RK 1RK 2GK 3 BK
j_c11p
CRT1
DR01 1N4148
DG01 1N4148
DB01 1N4148 RR02 22 1/10W CR01 100nF 25V R104 100 1/6W
L107 1.5uH
IC102 KA2503 (1201-001693)
HS102 SUPLVAL
R105 100 1/10W BOUT 2E VCC 2F GOUT 2G GND 2H ROUT 2I 24 23 22 21 20 RB03 470 1/10W RG03 470 1/10W RR03 470 1/10W
1 CB02 100nF 25V MO CG02 100nF 25V MO CR02 100nF 25V MO ROSD ROSD 2 GOSD GOSD 3 BOSD BOSD 4 OSD-SW OSDSW 5 RIN 6 Vcc1 C105 100nF 25V MO C106 100nF 25V MO 7 Vcc3 G-OUT GCLP-C R-OUT RCLP-C B/U
32
C109 100nF 25V MO CR03 100nF 25V MO
31
CN101 slcon6p 1 2 3 4 5 6 DR02 1N4148 DG02 1N4148 DB02 1N4148 RB02 22 1/10W CB01 100nF 25V RG02 22 1/10W CG01 100nF 25V
1 2 3 4 5 6 7 8 9 10 11 +5V R151 10M 1/10W R152 10M 1/10W R153 10M 1/10W L105 1.5uH R112 10K 1/10W ACL_ADJ B R111 100 1/10W E R124 4.7K 1/10W R113 2.7K 1/10W B C Q101 2N3904 E R114 10K 1/10W R115 22K 1/10W Q102 C 2N3904 C119 100nF 25V MO C103 100UF 16V B 12
VCC 1A BIN 1B CLP 1C GIN 1D GND 1E RIN 1F VSSA 1G VCOIN 1H VREF 1I VICTL 1J VDDA 1K SDA 1L
30
RR05 390 1/10W
j_c11p 4 5 6 7 8 9 10 11 H H2IC1 G1G2 G3G4 IC2
H/V SK105 21" FST (3704-001142)
LR01 0.12uH
RG08 22 G-OUT 1/10W LG01 0.12uH
RG12 47 1/2W CG04 1uF 160V
FOCUS RB12 33 1/2W BD105 1.2uH CN12 6.3V 1 SCREEN
28
RB01 75 1/10W
RG01 75 1/10W
RR01 75 1/10W
12V_B
12V_B
12V_B
TEST 19 2J FBLK 18 2K C143 16V 100UF VSS 17 2L VDD 16 2M HFLB 15 2N VFLB 14 1N SCL 13 1M
gnd1
26 GND3 25
CG05 8pF 50V MO
CR05 8pF 50V MO
CB05 8pF 50V MO
+5V
8 GIN 9 B-OUT
CB04 1uF 160V DR04 BAV21 DG04 BAV21 80V DB04 BAV21 SK101 SK102 SK103 X3 DMS-200D
R108 1K R109 100 R110 100
1/8W V_BLK 1/6W SCL 1/6W SDA C107 10nF 50V MO
24 Vcc2 BCLP-C 23 BIN BLK 22 GND CLAMP 21 ABL RCT 20 SCL GCT 19
10
CB03 100nF 25V MO H_FLB1
RB05 390 1/10W
BD102
C125 1nF 2KV
SK108 S-23(1KV),5MM
C102 6.8nF 50V R101 6.8K 1/10W R102 12K 1/10W R103 6.8K 1/10W 12V_B
L104 1.2UH,3.5*5.7MM B L103 1.2UH,3.5*5.7MM
C101 680pF 50V MO R117 100
11
CLP RCUT GCUT
RR07 20K 1/6W
RG07 20K 1/6W
RB07 20K 1/6W
12 1/10W 13
RR04 47K 1/10W 1 A
IC104 LM2480NA H G F E 8
BD104 1.2UH,3.5*5.7MM
DR05 1N4148
DG05 1N4148
DB05 1N4148 DMS-200D DMS-200D
C126 100nF 50V
1
CN14
B
1
EY5 SNAME
RCUT
BD106 7 6 5 CR06 100nF 100V P CG06 100nF 100V P CB06 100nF 100V P G1 R127 220 1/2W 1 EY6 SNAME
RG04 1/10W 47K RB04 47K 1/10W
2 B 3 C 4 D
ACL R116 100 1/10W ZD101 BZX79C5V6 C120 4.7uF 50V R118 100 1/10W 14
GCUT
BCUT
SDA C121 4.7uF 50V 15
BCT INT
BCUT 18
C127 4.70NF 500V
1 SK104 DSP-301N 1
EY7 SNAME
INT
EY2 EY1 SNAME SNAME 1 1
C118 10uF 100V
R107 100 1/6W
EY8 SNAME
16
17
BD101 1 CN13
H_SYNC_OUT 5V 12V 80V 6.3V GND G1 GND H_FLB V_BLK CLAMP SCL SDA ACL DC_FOCUS slcon15p CN102
1 2 3 4 5 6 7 G1 8 9 10 11 12 SCL 13 14 ACL 15 F_CONT SDA C136 10nF 50V MO R135 470 1/10W R134 1K 1/10W R119 2.2K 1/10W 1.2UH,3.5*5.7MM B BD108 80V 6.3V C141 100UF 16V C139 100UF 16V 12V 5V
+5V
H_FLB V_BLK
C B E Q103 2N3904
VT21B-DG Schematic
VarTech Systems - 11529 Sun Belt Ct.- Baton Rouge, LA 70809 - Phone: 225-298-0300
160-007 - Page
7
15 CRT Socket, Red, Green, Blue
19 IC103, #5, 24
20 R, G, B, Video
VT21B-DG Schematic
VarTech Systems - 11529 Sun Belt Ct.- Baton Rouge, LA 70809 - Phone: 225-298-0300
160-007 - Page
8
BNC Part Schematic
+5V +5V +5V +3.3V
+5V_DDC
DB51 1N4148
DG51 1N4148
DR51 1N4148
C151 100nF 50V MO
UPSTREAM slcon6p
1
C159 10uF 25V
C160 100nF 50V MO
ZD159 UZ-6.2BM CN104 slcon5p SELECTOR
2
5
USB_DM D_SUB tpcon15p 1 6 11 2 7 12 3 8 13 4 9 14 5 10 15
4 3
R
4
USB_DP
USB_DP
3
V C97 100nF 50V DDC_CLK RB51 75 1/6W RG51 75 1/6W RR51 75 1/6W MO RR52 10 1/6W IC1
BA7657S
B
24
1
G1 GND B1 H1
VCC G_O S_IN COM
22
3
RG52 10 1/6W RB52 10 1/6W
CG51 10uF 25V CB51 10uF 25V
23
2
ZD156 UZ-6.2BM R96 100 1/6W
4
21
20
5
19
6
18
7
8
UZ-6.2BM
UZ-6.2BM
UZ-6.2BM
10
+5V
+5V
+5V
C95 47PF 50V
RR54 10 1/6W RG54 10 1/6W
R2
CR52 10uF 25V CG52 10uF 25V CB52 10uF 25V 9
B_O H_O V_O V2 H2
17
16
15
11
14
12
B2
R-BNC
1
1P
1
EY101 SNAME EY102 SNAME EY103 SNAME EY104 SNAME EY105 SNAME
DB53 1N4148
DG53 1N4148
DR53 1N4148
RB54 33 1/6W
13
VT21B-DG Schematic
D_SUB JACK BNC JACK
G
+5V
5 6
ZD160 UZ-6.2BM
USB_DM
2
B H DB52 1N4148 DG52 1N4148 DR52 1N4148 BD151 1.2UH,3.5*5.7MM
ZD161 UZ-6.2BM
+3.3V
1
C98 10uF 25V
+12V +5V
R155 15K 1/6W R99 33 1/6W SELECTOR CN105 slcon9p
9
DDC_DATA R95 100 1/6W
CR51 10uF 25V
KA2507 R1 GND CTL R_O
QR52 2N5770
B
C
CR53 100nF 50V MO
8
7
S_RASTER
E
RR55 22 1/6W
RG55 22 1/6W
+5V
C96 100nF 63V MP R137 1K 1/8W QG52 2N5770
B
6
RIN
5
C152 47PF 50V
C
E
CG53 100nF 50V MO
4
GIN
3
ZD152 UZ-6.2BM ZD151 ZD153
ZD154 UZ-6.2BM ZD155
V1
R100 120 1/6W
RB55 22 1/6W R159
2
BIN
(17" SHORT)
+5V
1
GND G2 GND
C
33 1/6W R98 10K 1/8W R160 33 1/6W
B
CB53 100nF 50V MO
+5V
QB52 2N5770
E
SOG-OUT
IC3-1 MC74HCT14AN
14 VCC 2 14
IC3-2 MC74HCT14AN
VCC 4
G-BNC B -BNC H-BNC V -BNC
1
1P
1 IN
7 GND
IN
3 IN
7 GND
IN
H_SYNC
1
OUT
OUT
1
1P
1
1
1P
1
R97 100 1/6W
IC3-5 MC74HCT14AN
14 VCC 10
IC3-6 MC74HCT14AN
14 VCC 12
11 IN
7 GND
IN
13 IN
7 GND
IN
V_SYNC
OUT
OUT
1
1P
1
DB54 1N4148
DG54 1N4148
DR54 1N4148
RB53 75 1/6W
RG53 75 1/6W
RR53 75 1/6W
R154 100 1/6W
CN103 YBH254-16P ZD157 UZ-6.2BM ZD158 UZ-6.2BM C132 47PF 50V C133 47PF 50V BD150 1.2UH,3.5*5.7MM
1 2 B 3 4 5 6 7 8 9
+12V +5V
SOG-OUT
+5V_DDC
H_SYNC V_SYNC DDC_CLK DDC_DATA S_RASTER
10 11 12 13 14 15 16
VarTech Systems - 11529 Sun Belt Ct.- Baton Rouge, LA 70809 - Phone: 225-298-0300
160-007 - Page
9