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Wells-Gardner The Prismatic K7000, Руководство по обслуживанию

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Wells-Gardner The Prismatic K7000 Скачать руководство пользователя страница 15

Содержание The Prismatic K7000

Страница 1: ......

Страница 2: ...ation All rights reserved 2 VIDEO CHARACTERISTICS Bandwidth 3 db 12 MHz typical Rise Time Less than 50 nanoseconds Overshoot max 5 MECHANICAL The 19 monitor is also available in universal mount bracke...

Страница 3: ...WITH MANUFACTURER RECOM MENDED PARTS THESE PARTS ARE IDENTIFIED BY SHADING AND BY 6 ON THE SCHEMATIC DIAGRAM AVERTISSEMENT POUR MAINTENIR LE DEGRE DE SECURITE DE L APPAREIL NE REMPLACER LES COMPOSANT...

Страница 4: ...agonal tuning tool adjust ment This control must be adjusted slowly if necessary until the picture or test pattern attains the correct hori zontal proportions 8 VERTICAL HOLD CONTROL VR5 Adjust this c...

Страница 5: ...ows a ring assembly in which each of the rings of the purity ring pair has two tabs one long and one short With some ring assemblies of this type the zero correction position is with the long tab of o...

Страница 6: ...y the magnetic field maximizes Red and blue beams move to the left and right See Fig 5 Variation of the angle be tween the tabs adjusts the convergence of red and blue vertical lines 3 When both 4 Pol...

Страница 7: ...n See Fig 9 a and b 3 Use three rubber wedges tapered rubber wedges are used for a purpose 4 The position of each rubber wedge is shown in Fig 7 5 Do NOT force the permanent wedges in They are to be i...

Страница 8: ...its center of rotation Adjust the brightness control VR6 to obtain the waveform shown in Figure 10 Now remove the scope probe 8 Slowly turn the screen control CW until the raster is just visible The c...

Страница 9: ...less Each photograph is numbered These numbers correspond to the circled numbers on the schematic diagrams Photographs 12 13 14 15 and 16 are of the red signal at various points along the red video c...

Страница 10: ...o have available the model number of the monitor being serviced and the schematic diagram of the monitor being serviced 6 Replacement parts may be ordered from the Service Department between 7 00am an...

Страница 11: ...CAUSE OF IC4 SHORTEDIC4 OVERLOAD B REGULATOR IC4 PINS 1 4 SHORTED CONDITION SHORTED 0 11 FOR EXAMPLE I IC40K CHECK FUSE ING VARIAC DECREASE AC INPUT IF FUSE IS OPEN CHECK ZERO THEN SLOWLY INCREASE FO...

Страница 12: ...r l R302 IS PRESENT ONLY ON 19K7600 ANO 191 7900 SE RIES MONITORS 12 VR9 200 VR4 200 ALTERNATE CIHCUIT FOR R101 LATER PRODUCTION II V RTJCAL SlZt R92 I 2 2W HORIZONTAL OUTPUT DEFLECTION YOKE FOCUS I...

Страница 13: ...sync separator and a feedback signal at pin 1 derived from the horizontal output Slight differences in frequency and phase of the two signals Wm ca se the AFC to generate a correction voltage at pin 2...

Страница 14: ...is applied to pin 4 of IC3 the vertical output IC Output current from IC3 pin 2 flows through the yoke to cause vertical deflection During upward deflection current flows out of pin 2 through the yoke...

Страница 15: ...4 1 4 1 4 DO NOT MEASURE DIODE NO ANODE CATHODE IC NO 1 2 3 4 D1 8 5 9 1 TERMINAL D2 8 5 9 1 NUMBER D3 8 5 11 0 1 3 0 4 3 0 163 5 D4 8 5 11 0 2 2 0 6 8 12 2 125 2 D5 0 9 10 7 3 2 7 6 7 23 6 0 D6 0 9 1...

Страница 16: ...ICI IC2 IC3 R vcc VERT DEFLECTION G 8 VOLTAGE PULSE 1WIDTH BOOSTER ADJ FIG 11 17 CLAMP PULSE SEPARATION IC4...

Страница 17: ...R208 c _r R211 BLU g 3KB a 3 VE 4H 207 I I 17 I R210 85X0221C VR201 C201 VR202 R202 J 0 c 0201 RZO E rnRED c J I ICUTOFF RED DRIVE P201 ______ VR R204 205 VR203 V 204 c202 v R203 GRN c J GRN CUTOFF DR...

Страница 18: ...0e ca 0 N c R211 0201 R210 V I I r J E B I 0202 KG E I C P201 I I I J Q _ Ri020 B BB t 1 REDO R204 R212 0 r_1 N i N N __ _ RED t ___ t R201 GRN t ___J R203 BLU N Q 0 CUT OFF RED DRIVE CUT OFF GRN DRIV...

Страница 19: ...I 0 R83 Cl4 I R23 t I R48 R74 0 R38 R22 c J I I R43 c J 0 n 0 2 Rl8 c k I I C45 R49 R42 02 c t35 P447 y 0 0 Cl LJQ4 0 05 0100 _ _ _ _ _ _ 011 C27 T 9 _ _ _ _ DE J I BET I s R40 R4 OB D R44 I R p c J...

Страница 20: ...r I L VR101 FRONT CONTROL BOARD P485 ORIOi ORI02 OR103 RED GREEN BLUE PI01 l I1 ILU GRN R 0 WHT DSW101 TEST FIG 15 85X0170 A PIO 8 a ai I 1 1 nR OS 1 _ ___ F 9 c yRt04 I...

Страница 21: ...25 066X0089 001 D1 Boost 047X0786 S11 Myr 1 10 SOV 01 086XO 113 501 TRSTR NPN 2N3904 080X0099 5S7 Disc 220 10 Z5F 02 086XO113 501 TRSTR NPN 2N3904 080X0098 048 SPF 20 2KV NPO 03 086XO 113 501 TRSTR NP...

Страница 22: ...934 56K Ohm 5 0 25W R80 340X3056 934 5 6 5 o sw 340X2562 934 5 6K Ohm 5 0 25W R81 340X2150 934 15 Ohm 50 o 0 25W 340X2102 934 1 0K Ohm 5 0 25W R82 340X3821 934 820 Ohm 5 0 5W 340X2224 934 220K Ohm 5...

Страница 23: ......

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