Taxan Super Vision IVm Service Manual Download Page 1 | Manualshive

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Summary of Contents for Super Vision IVm

Page 1: ...I c C SERVICE MANUAL r i I I i 1 12 COLOR DISPLAY SUPER VISION DOtlIDrYl M TM SUPER VISION fbJ3JillJlflnlJ I1J...

Page 2: ...Crom AC supply The picture tube used in this monitor employs integral implo sion protection Replace with a tube at the same type number Cor continued safety Do not IiCt picture tube by the neck Han dI...

Page 3: ...s on do not attempt to short any portion of the circuit This shorting may cause damage to thetransistors in the monitor as lal 4 When servicing the H V area be certain tl lat the C R T anode is safely...

Page 4: ...display and the computer into AC outlets 2 Set the color mode switch on the rear panel 3 Connect the signal input terminal sm the rear panel to the computer using the optional cable 4 Turn on display...

Page 5: ...nal HOW TO SET COLOR MODE 1 Set ing the colarmade The color mode switch a five switch DIP unit is on the rear panel Set it as follows according to your computer 1 Mode 1 Color mode switch Color I OPEN...

Page 6: ...t in order to obtain maximum performance in display when you use with AT T PC6300 PC6300 PLUS computer and compatibles Curl at top Turn H HOLD counter clockwise Turn HoPOSI clockwise D 2 Small screen...

Page 7: ...site ne gative 3 Setting the signal color display mode Turnin g of the TEXT switch on the front of the unit changes the display to single color mode Super Vision monitor can now be used as a monochrom...

Page 8: ...LEDI POWER SWITCH PUSH ON PUSH OFF TEXT SWITCH BRIGHTNESS CONTRAST COLOR MODE SWITCH VERTICAL SIZE FOCUS HORIZONTAL SIZE VERTICAL POSITION VERTICAL LINEARITY VERTICAL SYNC ORIZONTALPOSITION HORIZONTA...

Page 9: ...e V HOLD control for astable image See illustration 4 1 7 FOCUS Adjust the focus for the sharpest image See illustration 6 1 8 V LIN Adjust the y LlN control so the height of characters is even over t...

Page 10: ...distortion appears on the right and left edge portions of their screen areas as shown in Fig 1 The distortion on the right and left screen portions can be minimized by turning the SIDE PCC potentiome...

Page 11: ...ly flops 5 The image is blurred 6 Character heights on the screen are not 7 uniform c There is nQ image 8 The screen is dark 9 Problems BJ BlJ 2J C lEIJ gTI E5J m G l1 HH H H H HH HHH HHHHH D I II Adj...

Page 12: ...ust the SCREEN control to fully counters lockwise 1 E 5 Set the BRIGHT control at the clik stop position CqNTRAST control t6 Min then turn on the service switch S601 1 E 6 Turn the screen adjustment c...

Page 13: ...er o Fig 1 1 NOTE Tilting the front block by 45 CD helps when re assembling back cover Fig 1 2 2 SERVICING THE POWER SUPPLY BLOCK 1 Remove the screw Fig 1 2 2 Disconnect power supply Connectors I II I...

Page 14: ...ig 3 1 Fig 3 2 4 PWB holder m LJ will open both side and pull out the main PWB Fig 3 2 5 Re assemble in reverse order d 4 PICTURE TUBE REMOVAL The main PWB must be removed before attempting to remove...

Page 15: ...PUT H lrHN _ SYNC MIXER V IC102 J INTERLACING CONTROL VR301 IC30t IC302 J B BUFFER 0161 L t BRIGHT CONTROL VR140 0171 t BLANKING CIRCU T 0143 BLUE OUTPUT AMP 0853 01156 SIDE PCC CONTROL N i VR640 PCT...

Page 16: ...L 0853 0856 w w a CONTRAST CON BRIGHT CONTROL u II TROL VR141 VR140 0171 f en IPIN DISTORTION J PCT 1 CONTROL VR640 1702 u SYNC INPUT a l rHN _ Ho SYNC 6 Vrms 500 900 V MIXER Bt ANKING CIRCUI T V 0143...

Page 17: ...btained by the secondary rectifier 0940 following the passage through the output transformer T901 This IC has a built in overcurrent protection circuit 1 2 Video circuit 1 Color interface circuit Colo...

Page 18: ...rol VRS01 VRI311 VRS21 The R G B video signals composed by the color interface circu it pass thr ough the video buffer circuits and are entered in the respsctive R G B video output amplifiers where th...

Page 19: ...c com separator I High voltage position IC102 limit control v 0 IOscillation f Horizontal t Sync selector I switch S 101 L bit 5 I L 1 AFC circuit predrive AFC l I l 3 11 12 15 Horizontal drive 0 701...

Page 20: ...0702 By making 0702 conducting again while the current flows in this diode a periodic sawtooth current is allowed to flow in the horizontal coil L i r t a702 conduction Resonance Damper diode 11 630...

Page 21: ...roniza tion Abnormal hue Different luminance between horizontal and vertical dots of a character Bad focus Bad side distortion check B line horizontal output circuit check horizontal circuit CRT circu...

Page 22: ...riction circuit appeared Peripheral parts of Q701 Q702 peripheral parts of H OY and R730 R73a R737 Z0701 R736 C734 IC701 Check heater circuit Check each electrode voltage 13 V 0706 cathode CRT 31 0 V...

Page 23: ...l section secondary rectifier circuit 1 630 640U 170 voe 630 640E S 310 voe 630 64 B A 340 voe YES IC701 I ICS01 OS40 CS42 0942 I 2 31 630 640U 630 640E A B J S I Horizontal oscillator circuit output...

Page 24: ...C701 j YES 0602 Vertical output circuit output YES Check deflection yoke t NO Turn OFF service switch S601 i t f i IC701 C603 CSOS C604 CG17 C61S R607 Z060l Ra03 Check vertical R604 VS701 ZOS02 oscill...

Page 25: ...circuit input output NO Check contrast peripheral circuit Including 0140 voltages normal 0141 VR141 YES Q143 Blanking circuit input output NO 014 Dl0L D13LD16L voltages normal Cheek blanking cin uit...

Page 26: ...m 1 8 W 390 ohm 1 8W 470 ohm 1 8 W 470 ohm 118 W 470 ohm 1 8 W 680 ohm 1 8 W 820 ohm 118 W lk ohm 1 8 W 1k ohm 118 W lk ohm 1 8 W lk ohm 1 8 W lk ohm 1 8 W 1 5k ohm 118 W 1 8k ohm 1 8 W 2k ohm 118 W 2...

Page 27: ...73 45 Resistor R92l 3 9kohm 1 4 W Carbon film _0114175T 46 Resistor R728 6 8k ohm 1 4 W Carbon film 0114181T Resistor R734 6 8k ohm 114 W Carbon film 0114181 47 Resistor R738 30k ohm 114 W Carban film...

Page 28: ...F190319 90 Capatitor C926 Cll1 47 LF lG V Electrolytic F190320F 91 Capacitor C144 C746 C701 100 LF 16 V Electrolytic F190321F 92 Capacitor C613 220 LF 16 V Electrolytic F190322F 93 Capacitor C614 330...

Page 29: ...V 141 Capacitor C705 0 015 p F 50 V 142 Capacitor C302 C303 C604 0 022 p F 50 V Capacitor C713 0 022 p F 50 V 143 Capacitor C605 C731 0 033 p F 50 V 144 Capacitor C301 C922 0 047 p F 50 V 145 Capacito...

Page 30: ...Silicon 2331912 159 Diode 0120 SEL1324G silicon F530061 160 Diode 0720 EU02 Silicon F410551 161 Diode 0724 0940 AU2AM Silicon F4105 1 162 Oiode 0922 GFE10 Silicon F380661 163 Diode D722 D723 GFElOR Si...

Page 31: ...901 F901 PARTS LIST Ratings 2SC655C o 2SC655C o 2SC3179Y G 2SC2911 Sm 2SC3026 2So386A 2S01207 2So468C 2S01397 Heater choke coil 0 35 H Filter coil 22 H Filter coil 100 H Filter coil 3300 H Line filter...

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