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Theory of Operation
CAD-256 is a multisync color monitor. Its operation frequency horizontal is from 3OKHz to 64KHz and vertical is from 50Hz to 1OOHz. The circuitry are composited of 3 boards which are main board, switching mode power supply board and CRT board. Now detail the theory of operation in following paragraph. 1. The Main Board : The board contains horizontal deflection circuit vertical deflection circuit and signal processing circuit.
A. Horizontal Deflection :

The H. sync from pc or signal generator is input via R300 to IC U301 pin 16. IC U301 normalization the polarity of the sync. The output of the sync is negative polarity which is sent out from U301 pin 11.0300 is protecting diode for the IC U301. R329 and C317 is a high pass filter for the H. sync. The sync is fed through R329 and C317 to IC U301 pin 1. R330, R329 are bias resistors for the signal. IC U301 internally has two monostable multivibrator, their function is for H. phase control and AFC. The external RC of U301 pin 2 is for phase control. SVR304 is for 48KHz and SVR305A is for 64KHz, they are internal phase adjustment V/R. The R311, C320 in IC U303 pin 3 decide the time constant of pseudo H. sync generator for AFC circuit. Pin 4 of U303 is the input pin of flyback pulse from FBT for AFC circuit. C322 in IC pin 5 is the sawtooth generation capacitor for flyback pulse. In IC pin 6 C323 is the filter capacitor for AFC detector. The AFC output current is output at IC pin 7, through R334 to correct the oscillation frequency. The H. oscillator is a RC oscillator, R335 SVR306 and C326 decide the free running frequency. With the F to V voltage from IC U301 and U302 it can run multifrequency. R336 is the discharge capacitor for the oscillator. The output driver duty cycle is decided by the DC bias of pin 11 or by R341, R340, R393, Q320. The H. driver output is from pin 12 of IC U303. Q303 is the driver transistor which acts as a switch. During the time Q303 is driven on, energy is stored in the primary of T301. When Q303 off, energy is released through the secondary of T301 to drive the H. output transistor Q304. Q304 also acts as a switch. When Q304 is on, yoke current flows through L302, L303, C339 and yoke through Q304 to ground. During this period of time the scanning is from center of CRT to the right edge of CRT. Then Q304 is switched off, the scanning current reversed to charge the tuning capacitor C330, C337 which forms a tank circuit with the inductance of FBT and yoke. The time when the current of yoke from max. to zero the voltage on the capacitor is changed to max. This is called flyback. Durng this period of time the scanning is from the right edge back to the center of CRT. Then the trning capacitor is discharged through yoke until the yoke current reaches its negative max. It contributes the scanning from the center of CRT to the left edge of CRT. By the time yoke current wants to charge the tuning capacitor, damping diode conducts, the scanning current reduces to zero. During this period of time the scanning is from left edge of CRT to center of CRT. By the time when yoke current nearly reaches zero the output transistor is driven on again, A scan cycle is finished. The cycle repeats. L302 is the linearity coil, C339, C344, C342 is the "s" correction capacitor. The power MOSFET Q309 is switched on when H. frequency below 48KHz and Q3IO is switched on when frequency below 35KHz, they are used to correct the linearity difference by the change of the frequency. Pin 4 of FBT is B input for the H. deflection. C332, C331 are the by pass capacitors. Pin 5 supplies the AFC pulse. Pin 6 is for ABL control. Pin 8 is the negative supply for spot killer and brightness control. FBT pin 9 is for holddown, feedback for switching mode power control and supply voltage for blanking circuit.

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This monitor uses diode modulation circuit for H. deflection. This circuit porvides DC control of H. width and pincushion. The vertical parabola is taken through the IC U402 pin 5 and pin 9 by the subtraction of vertical waveform. The output is then amplified by the other half of U402, the output is at pin 1 of U402. The V. parabola and H. H. sawtooth then is compared by IC U403 to generate PWM pulse to drive the bridge coil L301 of diode modulator. It will generate a AM V. parabola on the H. scanning which will correct the pincushion. Q306 is the driver transistor, D319, C333, Q305, R349, D318, R345, R349 are clipper circuit which limits the pulse amplitude on the collector of Q306. The DC bias on pin 3 of U403 can decide the H. width. The DC bias is setting by R379, VR302, SVR302, SVR303 and SVR300. SVR300 is for 31.5KHz, SVR302 is for 35K, 38KHz, SVR303 is for 56K, 64K, they are internal setting VRS. The V. parabola is output from pin 7 of U402. R447, R420, R417, R419, Q401, Q402 and U301 which control the amplitude of parabola for different operation mode and frequency. R440, ZD401, C421, C417 provide the + 15VDC supply for U402, U403. Q312 is an emitter follower.
B. Vertical Deflection :

Vertical sync via R400 C401 input to pin 27 of IC U301. IC U301 internally normalizes the polarity of the sync. The "negative" sync is output from pin 12 of U301. The sync is input to IC U303 pin 19 via C403, while the other path is fed via C402, R403, Q403, R424, D405 to vertical oscillator for force synchronization. R425, C404 connect on IC pin 18 and IC internal circuit form a RC oscillator. IC U303 pin 16 is the output pin for V. sync, this signal is used to trigger the vertical output IC U401, the input pin is pin 2. R429, R430 supplies the DC bias for the sync, U401 pin 1 is + 12V power supply. Pin 4 is vertical size control input. When we change Q404 base voltage, we can control the vertical size. R426, R411, D401, D402, R410, D403, R409, R408, R407 R402, R412 and external control VR 401 are the parts for vertical size control. C411 in IC U401 pin 6 is the capacitor for ramp generator. Pin 7 of IC is AC and DC feedback control input. + 22V supply is at I C pin 8. The output of vertical can directly drive the yoke C419 is vertical S correction capacitor. R436 can decide the amplitude of yoke current. R435, SVR401, C418, R434 are V. linearity correction circuit. Q405, Q406, C420, R437, VR402 and R422 are vertical centering control circuit, which supply or sink current from yoke or adjust the centering. D406, C412 and IC 401 internal circuit form a pumb circuit which supply double of the supply for vertical retrace in order to shorten the vertical retrace time. C. Signal Processing Circuit: H. and V. sync is fed to U301. IC U301 discriminates the operation mode and sync pulse polarity detection and horizontal F to V converter and clamping pulse generation. H. F/V IC internally converts the frequency to voltage. The output is at pin 17 of U301. The output voltage of F/V can be set by SVR301. U302 pin 5.6.7. acts as a voltage limiter and pin 1.2.3. is a source follower. When no H. SYNC input or too low frequency H. sync, the F/V voltage is output at the lowest setting voltage 3.15V to avoid malfunction due to too low of the operation frequency. This F/V voltage is used to control the H. oscillator to meet multifrequency operation demand. Pin 24, 26 and crystal X301 with the internal IC circuit is a oscillator which supply the clock for IC internally usage. IC mode detector outputs are pin 28, 29, 30, 31, 32 and pin 1 which are separaly for 31.5K, 35K, 37K, 48K, 56K, 64K. IC pin 4.5.6.7.8.9. are outputs for 1024x768, 1024x768(1), 80Ox600, 64Ox480, 64Ox400, 64Ox350 which are used for vertical size control. IC pin 2,3 are detector output of vertical frequencies, pin 2 is low when V. frequency 65Hz and pin 3 is low when V. frequency 78Hz. These outputs are to control the H. width, H. phase, V. size and pincushion.

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2. S.M.P.S. Board

:

AC input voltage passes the EMI filter LF102, C102, ClOl, Cl03 is added to the bridge rectifier DlOl DlO4; ClOO, CIO5 are filter capacitors. IC UlOl is control IC for SMPS. The free running frequency is decided by Cl13 and R109 in IC pin 4 and 8. The monitor is a synchronized type its operation frequency is the same as the H. operation frequency. IC pin 1 is the frequency compensation input pin for error amplifier. R112, Cl15 are compensation RC. Pin 2 is the invert input pin of error amplifier which controls the output voltage. The error amplifier non- inverter input pin is internally connected to a 2.5V bias. IC pin 3 is the input of current sense, during the time the current exceeds the setting point, the IC output will be disable. This is to protect the power supply from overload or shorted circuit. The current detecting circuit are R108, R116, C116. Pin 5 is grounding pin. IC pin 6 is the output of driver which can directly drive power MOSFET. Pin 7 is the voltage supply pin for the IC. IC pin 8 is the reference voltage output pin. While AC is added to SMPS, DC is output at ClOO, RIO2 supplies the current for starting up of the IC. After started the power transformer supplies through R106, D106 for the normal operation. D107, R107, Cl07 D105, R105, Cl06 are snubber circuit which used to protect the power MOSFET during turning on and off. B output: FBT pin 9 output a voltage after divided is feedback to SMPS. This voltage is to control the SMPS during frequency or load change. TL431 (1C U121), Q121 and Tl21 are magnetic amplifier circuit which is used ot control the voltage need for different operation frequencies. The other voltage outputs circuit are feedback control through + 92V and + 22V by R137 and R144. The feedback is input to U123 which controls the photo coupler (U102) or to control the primary control IC UlOl to get a stable voltage output. + 12V is got from + 22V through U122 the 7812. 3. Video : R.G.B. video signal fed from pc or signal generator is add to video preamplifier IC U201. The video after amplification is output to final output stage for power amplification. All the three video cir cuit are identical, we just describe the R channel only. R signal is input through C201, C202 to IC U201 pin 4. R202 supplies the DC bias. R201 is the impedance matching resistor. IC pin 11 is the reference voltage output. IC pin 12 is the contrast control DC input pin, the DC level will change the P-P voltage. Pin 2, and 3 connection capacitor C208, C209 are high frequency by pass capacitors. The amplifier got two stages. At 2nd stage the clamping function is added. The clamping pulse is taken from IC U301 pin 10. After inverting by Q293 is added to IC pin 14. With the pulse and C207 in pin 5, it generates a DC voltage on C207. This is to sustain the black level of the video to a fix DC level. The pre-amplifier is output at IC pin 25. The pin 27 of IC is the emitter connection pin of the output amp- amplifier, or when we changes the impedance we can control the output video amplitude. IC pin 26 is the noninverter input of the comparator. clamp comparator. IC pin 24 is the inverter input of the clamp comparator. When we change the DC bias of pin 24 (by SVR 202), we can change the DC bias of the video output driver, that to say the DC-BUS of the output amplifier. Output stage Q202, Q2O1 which connected as a cascade power amplifier configuration. The gain of the amplifier is decided by R211 and R207. R208, C205 is the emitter peaking RC. L202, L201 also used as a frequency compensation. R209 is connected to + 12V which provides a DC bias for Q206. C206 is a filter capacitor. Q201 is connected as CE and Q202 is as a CB amplifier. Q203, Q204 forms a buffer to match the impedance between the power amplifier and CRT cathode. D200, R214, GAP201 are arcing protection parts.

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ABL: When CRT beam current exceeds the setting 45OgA, ABL output of FBT sinks the current so the voltage is pulled low, which makes Q291 conducts. It also makes Q292 driven on. This will low down the IC pin 12 voltage. It will make the video peak to peak voltage drop that to say CRT beam current is limited.

CAD-256 ALIGNMENT PROCEDURF
1. SET UP
A. EQUIPMENTS

a.SIGNAL GENERATOR ..,....................... VG815 OR VG819 OR EQUIVALENT. b. COUNTER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . HIGH RESOLUTION COUNTER OR R EQUIVALENT. c.MULTIMETER .........................................HP3466 OR EQUIVALENT. R d.COLOR ANALYZER ..............................MINOLTA TV-2130 OR EQUIVALENT. e.DEGAUSSING COIL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . HOZAN HC-21 OR EQUIVALENT. f.CONVERGENCE METER . . . . . . . . . . . . . . . . . . . . . . KLEIN CM7AG OR EQUIVALENT G 2. ALIGNMENT PROCEDURE SET ALL THE VR'S IN THE MIDDLE POSITION, INCLUDING EXTERNAL ADJUSTMENT VR'S. EXTERNAL AC IS 115 OR 220V.
A. HORIZONTAL FREE RUN FREQUENCY (HFl)

a.DISCONNECTED THE SIGNAL CABLE. b.USE COUNTER THE " + " INPUT TERMINAL IS CONNECTED TO THE OUTSIDE SLEEVE OF CRT YOKE RED COLOR WIRE, AND NEGATIVE OF COUNTER TO GND. c. ADJUST SVR306 ON THE MAIN BOARD TO GET 28KHz±O.lKHz READING.
B. VOLTAGE ADJUSTMENT

a.INPUT 31.5KHz VGA TIMING ( 08 OF VG815 ). b.CONNECT VOLTAGE METER TO CRT SOCKET HEATER INPUT AND GND. c.ADJUST SVR121 ON POWER BOARD TO GET 6.0 O.O5VDC. C. B + VOLTAGE a.INPUT 31.5KHz VGA TIMING ( 08 OF VG815 ). b.CONNECT VOLTAGE METER TO FBT PIN 7 AND GND. c.ADJUST SVR310 ON MAIN BOARD TO GET 62.0±0.5VDC.
D. HORIZONTAL F/V (HF2)

a.INPUT 31.5KHz VGA TIMING ( 08 OF VG815 ). b.CONNECT VOLTAGE METER TO F/V OUTPUT VOLTAGE R390 AND GND. c.ADJUST SVR301 TO GET 3.7VDC. d.DISCONNECT THE VOLTAGE METER, CHECK WHETHER 35.5KHz, 37.8KHz, 48KHz, 56KHz, 64KHz ARE ALL CAN BE HOLD. E. H. CENTER a.INPUT 31.5KHz VGA TIMING ( 08 OF VG815 ).

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b.ADJUST G2 SLIGHTLY TURN ON THE RASTER. c.ADJUST SVR311 TO CENTER THE RASTER IN THE BEZEL. F. H. PHASE a.INPUT 31.5KHz VGA TIMING ( 08 OF VG815 ). b.PUT THE EXTERNAL ADJUSTMENT VR TO THE CENTER POSITION. c.ADAPT 48KHz/60Hz TIMING ( 22 OF VG815 ), ADJUST SVR304 ON THE MAIN BOARD TO CENTER THE VIDEO. d.ADAPT 56KHz/70Hz TIMING ( 26 OF VG815 ), ADJUST SVR305 ON THE MAIN BOARD TO CENTER THE VIDEO. e.ADAPT 64KHz/60Hz TIMING ( 29 OF VG815 ), ADJUST SVR305A ON THE MAIN BOARD TO CENTER THE VIDEO. f.CHECK THE OTHER TIMINGS 35.2K, 35.5K, 37.8KHz H. PHASE. G. H. WIDTH a.INPUT 31.5KHz VGA TIMING ( 08 OF VG815 ). b.SET THE EXTERNAL H. WIDTH VR TO THE CENTER POSITION. c.ADJUST SVR300 ON THE MAIN BOARD TO GET 244mm WIDTH. d.ADAPT 35.52KHz INTERLACE SVGA TIMING ( 13 OF VG815 ), ADJUST SVR302 ON THE MAIN BOARD TO GET 244mm H. WIDTH. e.ADAPT 56KHz/70Hz ( 26 OF VG8l5 ), ADJUST SVR303 ON THE MAIN BOARD TO GET 244mm H. WIDTH. f.CHECK THE OTHER TIMINGS 35.2K, 37.8K, 48KHz H. WIDTH. H.V LINEARITY a.INPUT 3 5 . 5 2 K z INTERLACE SVGA TIMING ( 13 OF VG815 ). b.ADJUST SVR401 TO OPTIMIZE THE V. LINEARITY. I. PINCUSHION a.INPUT 35.5KHz INTERLACE SVGA TIMING ( 13 OF VG815 ), ADJUST SVR402 GET THE BEST PINCUSHION. b.ADJUST SVR403 TO GET BEST TRAPEZOID. J. WHITE BALANCE a.CUT-OFF a-l.INPUT 35.5KHz INTERLACE FULL WHITE SVGA TIMING ( 12 OF VG815 ), SET EXTERNAL CONTRAST VR TO MAX. EXTERNAL BRIGHTNESS VR TO MIN. a-2.DEGAUSSING THE UNIT, PUT THE COLOR SENSOR TO THE CENTER OF CRT. a-3.ADJUST SVR102, SVR232, SVR262 TO COUNTERCLOCKWISE MAX., SVR201, SVR261 SET IN THE MIDDLE. a-4.ADJUST THE EXTERNAL CONTRAST VR TO GET 2.5FL LIGHT OUTPUT. a-5.ADJUST SVR102, 232, 262 TO GET x = 281 y = 311. TO

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b.WHITE BALANCE b-l.USE TV-2130 AND ADJUST EXTERNAL CONTRAST VR TO GET 2OFL LIGHT OUTPUT. b-2.ADJUST SVR201, SVR261 TO GET x = 281 y = 311. K.G2 a. ADAPT 35.5KHz INTERLACE SVGA TIMING ( 13 OF VG815 ). b. ADJUST G2 TO CUT-OFF THE LAST SHADE OF THE COLOR GRAY SCALE. L.FOCUS a.INPUT 35.5KHz INTERLACE SVGA ( 19 OF VG815 ). b.ADJUST FOCUS VR ON THE FBT TO OPTIMIZE THE FOCUS OF THE QUARTER PORTION OF THE DISPLAY. M. CG a.INPUT 35.5KHz INTERLACE SVGA ( 19 OF VG815 ). b.ADJUST THE CG RING TO GET BEST CG. c.IF THE ADJUSTMENT OF ITEM b.CAN'T LET THE CG MEET SPECIFICATION, USE THE STICKS WITH FERRITE SHEET TO COMPENSATE THE CG TO MEET REQUIREMENT.

i

TROUBLE
START

SHOOTING

CHECK

AND REPLACE THE FAILURE PART

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/.-,;lol \A \ /'P I N 7 DC \'\.x __ VOLTAGE ; _' "\ "\ `/YES '-A; CHECK j C113,R109 ' D108 D109
I I

,,'

A

Ml01

I

10

7
STOP
-

15 -

BILL OF MATERIAL LIST
PARTS NO 05110-0004 05110-0005 05420-0002 05620-0001 06630-009s 08031-0131 08031-0141 08031-0170 2OS14-0460
XAD256C06

46GOO-0003 54WlO-0002 56QO6- 1510 65311-1501 6720040100 6720130083 6720530061 6721240140 6721240200 6721240250 6721530081 6730032120 6730040080 6730055150 6733043050 7113B-0030 7113B-0040 71405-0470 73012-0002 74134-0010 742440030 74244-0040 74244-0070 74731-0050 747440040 76201-0120 76201-0130 76201-0140 76201-0150 76201-0200 79220-0010 79220-0020 ACD2560001 llS31-0300 14A844C-00 14A965Y-00 14B649A-00 14BF422-00 14C2235Y-0 14C3886A-0 14C945P-00 14D669AC-0 14IRF630-0 14TIP127-0 15AOO-0011 15AOO-0011 15S2A-8096 15352-1091

SPECFICATION POLYFOAM(L) POLYFOAM(R) PE BAG TAPE .28 BEZEL CAB VR DOOR M34KQA22XX06( G3) TOSHIBA .28 57K DEGAUSSING CRT GND WIRE POWER CABLE SG. CABLE SCREW M 4x10 SCREW FLAT M 3x8 (BLACK) SCREW M 3x6 WITH WASHER SCREW TAP 4x14 SCREW TAP 4x20 SCREWTAP4x5 SCREWTAP3x8WITH WASHER FLAT WASHER 3.2x12x1 FLAT WASHER 4x8x0.8 CRT WASHER 5.5x18x1.5 TOOTH WASHER 4D PUSH KNOB VR KNOB VRFUNCTIONPLATE PUSH KNOB SPRING RUBBER CRT t = 2.5mm SPONGE (18x18x22) 94V-0 SPONGE20*24*29 94V-0 SPONGE 24x24x37 94V-0 SPACER SUPPORTS TCB-10 DOOR FASTENER BKT (R) BKT (L) BKT (B) BKT (F) CRT METAL PAD WIRE TIE (85mm) WIRE TIE MAIN BOARD ASS'Y MAIN PC. BOARD TR A844C TR 2SA965Y TR B649AC TR B F422 TR C2235Y TR C3886A TR C945P TR D669AC TR IRF630 TR TIP127 DIODE IN4148 DIODE IN4148 DIODE BY329-1200V DIODE HER103

LOCATION D-256 D-256 D-256 CARTON D-256 INSPECTION CARD D-256 (HIPS 94HB) D-256 (HIPS 94HB) D-256 D256 D-256 D-256 (STD) D-256 CAB + BKT(B),SOCKET + BKT(B),SG + BKT(B) SOCKET BKT + BEZEL CAB + BEZEL CRT LED + BEZEL FOR PWR PCB PWR PCB

D -256s

FORPWRPCBPWRBD

D256 D256 D256 D256 FRONTCOVER D256 D-256 Q314,Q315 :z Q311,Q408 Q303,Q405 Q304 Q301,Q302,Q312,Q401,Q402,Q403,Q404,Q407,Q320, Q410,Q411 Q33zCJQ306,Q307 Q305 D402,D403,D404,D405,D407,D390,D301,D302,D303, D304,D305,D306,D307,D308,D309,D310,D311,D312,D313 D314,D315,D401,D400,D300,D391,D393,D412,D413, D414,D415,D416 D317 D318

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PARTS NO 15S55-2091 15S57-1091 15Z33-1201 15Z33-1501 15Z33-1801 15Z33-5091 17BRIDGEl17HA1739317LA7837-0 17LA7850-0 17LM358N-0 22115-1061 22225-1001 22225-1011 22225- 1021 R467 22225-

SPECIFICATION DIODE HER205 DIODE HER107 DIODE ZENER HZ12Al DIODE ZENER HZ15-3 DIODE ZENER HZ18-2 DIODE ZENER HZ5C2 IC BRIDGE1 IC HA17393 IC LA7837 IC LA7850 IC LM358N RES lJ8W 10M + -5% RES 1/4W lOohm + -5% RES 1/4W lOOohm + -5% RES 1/4W 1K + -5% 1031 RES 1/4W 10K + -5%

22225-1041 22225-1051 22225- 123 1 22225-1241 22225-1511 22225-1521 22225-1531 22225-1631 22225-1831 22225-2021 22225-2211 22225-2221 22225-2231 222252241 22225-243 1 22225-3011 22225-3021 22225-3031 22225-3301 22225-3311 22225-3321 22225-3331 22225-3631 22225-3921 22225-3931 222254701 22225-4711 222254721 22225-4731 22225-4741 22225-5111 22225-5131 22225-5641 22225-6831 22225-7521 22225-753 1 22225-8221 22245-1091 222451211 22245-1811 22245-2231 22245-3311

RES 1/4W 1OOK + -5% RES 1/4W 1M + -5% RES 1/4W 12K + -5% RES 1/4W 120K + -5% RES 1/4W 150ohm + -5% RES 1/4W 1.5K + -5% RES 1/4W 15K + -5% RES 1/4W 16K + -5% RES 1/4W 18K + -5% RES lJ4W 2K + -5% RES ll4W 2200hm + -5% RES 1/4W 2.2K + -5% RES 1/4W 22K + -5% RES 1/4W 22OK + -5% RES 1/4W 24K + -5% RES lJ4W 3000hm + -5% RES 1/4W 3K + -5% RES 1/4W 30K + -5% RES lJ4W 330hm + -5% RES 1J4W 3300hm + -5% RES lJ4W 3.3K + -5% RES ll4W 33K + -5% RES lJ4W 36K + -5% RES 1/4W 3.9K + -5% RES 1/4W 39K + -5% RES l/4W 47ohm + -5% RES 1/4W 4700hm + -5% RES lJ4W 4.7K + -5% RES 1/4W 47K + -5% RES 1/4W 470K + -5% RES 1/4W 5lOohm + - 5 % RES 1/4W 51K + -5% RES 1/4W 56OK + -5% RES 1/4W 68K + -5% RES 1/4W 7.5K + -5% RES lJ4W 75K + -5% RES 1/4W 8.2K + -5% RES OSW lohm + -5% RES OSW 180ohm + -5% RES 0.5W 22K + -5% RES OSW 330ohm + -5%

LOCATION D322 D316,D319,D320,D321,D323,D324,D325,D326, D327,D406 ZD304,ZD305,ZD306,ZD307 ZD401 ZD303 ZD301 U301 u403 U4Ol u303 u302,u402 R307 R314 R377,R427 R301,R338,R348,R350,R413,R423,R390,R326,R300, R337,R466 R418,R42O,R426,R447,R451,R452,R453,R456,R444, R445,R315,R353$356,R373,R414,R415,R416,R446, R464,R476, R477 R355,R358 R367 R329,R434 R372 R360 R327,R400 R422,R430 R419 R363,R435 R319,R321,R441,R442,R448,R454,R392,R463 R336 R3Oti,R328,R366 R33O,R379 R369 R429,R417,R465 R359 R394,R395,R470 R432,R433 R421 R343 R478,R479 R305,R332,R334 R304 R316,R317 R412 R322 R339,R368 R318,R320,R450,R365,R391,R308,R309,R310,R311, R312,R313 R331,R364,R378,R449,R455,R475 R370,R425 R462 R480 R371 R354,R357,R431 R396,R323 R428,R#2 R333 R362 R436 R352 R347 R440

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PARTS NO 222454701 22245-4711 22245-4731 222454791 22245-5111 2312110011 2312112421 2312115021 2312120521 2312121021 2312124921 2312128021 2312130121 2312133221 2312141221 2312154921 2312156031 2312156211 2312157621 2312159021 2312171521 2312193121 23235-6809 23245-1014 23245- 1094 23245-2214 23245-5084 23255-8205 23765-1815 23785-1099 25AOl-103B 25AOl-503B 25AOl-504B 25BOl- 102B 25BOl-103B 25BOl-203B 25BOl-502B 28107-1001 28107-4701 28137-1011 28137-1021 28137-2201 28137-2211 28137-2221 28137-4701 28147-1011 28147-2211 28157-1021 28157-4701 28167-1001 28167-1011 28167-1091 28167-2291 28167-3391 28167-4711 28167-4791 281B7-1001 281B7-1091 281B7-4791 281C7-4791 288B7-1001 29146-1093 32115-122B 32115-332B

SPECFICATION RES 0.5W 470hm + -5% RES OSW 4700hm + -5% RES OSW 47K + -5% RES OSW4.7ohm + -5% RES OSW 5lOohm + -5% RES 1/4W 1K + - 1% RES 1/4W 12.4K + -1% RES l/4W 15K + -1% RES 1/4W 20.5K + -1% RES 1/4W 21K + -1% RES 1/4W 24.9K + -1% RES 1/4W 28K + -1% RES 1/4W 30.1K + -1% RES 1/4W33.21< + -1% RES 1/4W 41.2K + -1% RES l/4W 54.9K + -1% RES 1/4W 560K + -1% RES l/4W 5.62K + -1% RES ll4W 57.6K + -1% RES l/4W 59K + -1% RES 1/4W 71SK + -1% RES 1/4W93.1K + -1% RES MOF 1W lOOohm + -5% RES MOF 1W lohm + -5% RES MOF 1W 2200hm + -5% RES MOF lWO.5ohm + -5% RES MOF2W 820hm + -5% RES MOF3W 1800hm + -5% RES MOF 5W lohm + -5% VR 1OKB Sl (VZO67THl) VR 5oKJ3 S1(VZ067TH1) VR 500KB Sl (VZ067THl) VR 1KB S2 (VZO67TLl) VR 1OKB S2(VZO67TLl) VR 20KB S2 (VZO67TLl) VR 5KB S2(VZO67TLl) ELEC 160V 1OU + -20% ELEC 160V 47U + -20% ELEC 16V 1OOU + -20% ELEC 16V 1OOOU + -20% ELEC 16V 22U + -20% ELEC 16V 220U + -20% ELEC 16V 2200U + -20% ELEC 16V 47U + -20% ELEC 25V 1OOU + -20% ELEC 25V 220U + -20% ELEC 35V 1OOOU + -20% ELEC 35V 47U + -20% ELEC 5OV 1OU + -20% ELEC 50V 1OOU + -20% ELEC 50V 1U + -20% ELEC 50V 2.2U + -20% ELEC 50V 3.3U + -20% ELEC 50V 470U + -20% ELEC 50V 4.7U + -20% ELEC 250V 1OU + -20% ELEC 250V 1U + -20% ELEC 250V 4.7U M ELEC 35OV4.7U + -20% ELEC 250V 1OU + -20% (105C TAN 16V 1U + -10% PEN 50V 0.0012U + -5% PEN 50V 0.0033U + -5%

LOCATION R345,R380 R424 R346,R376 R439 R374,R375 R469 R34O R341 R411 R472 R406 R410 R405 R471 R404 R403 R409 R468 R474 R407 R408 R473 R381 R437 R438 R303 R344 R342 R349 R351,R397 SVR300 SVR303,SVR304,SVR305,SVR305A SVl2302 SVR310 SVR311JVR402 sVR301 SVR4Ol,SVR404,SVR306 c333 C332 C304,C408 C311,c407 C425 C302,C315,C318 c419 c433,c434 c417 C421 c415 c431 C312.C328.C403.C423 C335;C412;C420' C305,C306,C402,C424 C418 C348,c409 C347 C327 c350 C349 c353 C351 c394 C323,C325,C411 C396(Ik) C326,C410

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PARTS NO 32115-562B 32125-102B 32125-103B 32125-1044 33175-5624 33lA5-562A 35145-1057 35145-225A 35145-395A 35 155~684A 38195-1007 38195-1017 38195-5007 381A5-1017 381A5-2717 39146-1037 39146-2228 391464717 39146-8217 394461038 39546- 1027 39999-1047 45MlK-1027 45MlK-6027 46LOO-0040 46200-0001 47BlO-0010 47DlO-0030 47Fl3-0020 54JB5-0003 54JB5-0003 54JB5-0003 54JB5-0005 54L15E073L 54L15E143L 6OCOO-3579 62R35-4501 64B1140001 64B3320001 64B3330001 64B3350001 65W2262501 65W3362101 6720030101 6720230060 6721240140 6721530061 674003025 1 75 120-0040 75123-0050 75123-0060 75123-0100 75123-0110 BCD2560001 1 lS33-0300 14A1538E-0 14A673C-00 14C3953E-0 14C4308-00 14C945P-00 15AOO-0011

SPECFICATION PEN 5OV 0.0056U + -5% PEN 1OOV O.OOlU + -5% PEN lOOVO.OlU + -5% PEN lOOVO.lU + -5% PP63OVO.OO56U + -5% PP 1.6KV 0.0056U + -5% MPP 25OV 1U + -5% MPP 250V 2.2U + -5% MPP 250V 3.9U + -5% MPP 400V 0.68U + -5% CER 5OV 1OP SL + -5% CER 5OV 1OlP SL + -5% CER 5OV 5OP SL +-5% C319 CER 5OV 271P NPO + -5% CER 5OV 103P Y5P + -10% CER 5OV 2200P Y5P + -5% CER 5OV 471P Y5P + -10% CER 5OV 821P Y5P + -10% CER 5OOV 103P Y5P + - 10% CER 1KV 102P Y5P + -10% CER 5OV 104P Y5V + 80% -20% CHOKE 1mH CHOKE 6mH LINEARITY COIL INDUCTOR 0.22mH H.BIAS COIL. D-256 DRIVETRANS. D-256 FBT D -256 JUMPER 10mm

LOCATION C405,C322 C401 C324,C334,C341,C343 c414,c404 C337 c330 C342 C338 C339 c314$317,c393 C307,C308

C320 C422,C346 C395 C321 c426 C331,C352 C329,C340 C303,C3O9,C310,C316,C416,C390,C391$392,C432 L304 L301 D -256 L302 L303 T302 T301 T303 J301,5302,5303,5304,5305,5306,5307,5308,J3~,J310,J311 5312,5313,5314,5315,5316,5317,5318,5319,5320,5335 J350,J351,J353,R361,J358,J359,J356,J360,5361,5362,J3222 JUMPER 1Omm J323,J324,J325,J326,J327,5328,5329,J331,,J333 JUMPER 10mm J334,J336,J337,J338,J339,5340,5341,5342,J343,J344,J363 J345,J346,J347,J348,J349,J364,J365,5366,8 JUMPER 15mm 5352 LEAD WIRE 1007 #22 75mm (ORG) B TO ' LEAD WIRE 14CM (ORANGE) HTOH' x301 X'TAL 3.58M FERRITE BEAD RH035045S-B 3.5*4.5 J321 BASE (2.36D-4P) P403TO CRT P402 LED BORD BASE (XH-2P) P302 TO VR BRIGHT BASE (XH-3P) BASE (XH-5P) P301 H-SIZE,P-PHASE P401 V-SIZE,V-CENTER FOR-92V,-22V,-92V,-GND,-FB,-B + TO P122 CONN (1.5D-6P) 250mm FOR-BRIGHT,-ABL,-CLAMP,-HI,-Vl,-GND TO P202 CONN (XH-6P) 210mm SCREW M 3x10 U4Ol,Q304 SCREW M 3x6 Q305,D317,Q309,Q310 FBT SCREW TAP 4x14 D322 + FBT HEATSINK SCREW TAP 3x6 WITH WASHER FOR FBT NUTM3 FBT HEAT SINK (FBT) HEAT SINK (65~18.8~40) u401 HEAT SINK (15~10.6~30) Q305,Q309,Q310 D322 HEATSINK(15*10.6*40) HEAT SINK (23x16~40) D317 D256 1.0000 CRT BOARD ASS'Y CRT P.C. BOARD TR A1538E Q204,Q234,Q264 Q291 TR A673C TR C3953E Q202,Q203,Q232,Q233,Q262,Q263 Q201,Q231,Q261 TR C4308 Q292,Q293 TR C945P DIODE IN4148 D201,D202,D231,D232,D261,D262

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PARTS NO 15357-1091 17LM1203N22225-1011 22225-1021 22225-1031 22225-1111 22225-1521 22225-2201 22225-2211 22225-2221 22225-3321 22225-3911 22225-3921 222254701 22225-4731 22225-5101 22225-5611 22225-7501 22245-1011 22245-1031 22245- 1041 23785-2029 25AOl-101B 25AOl-302B 28107-1001 28137-1011 2x37-4701 28167-4791 38195-3307 39446-1038 39646-1027 39687C1038 39999- 1047 42SOO-0200 42SOO-1000 45AOK-229C 45AOK-689C 54JB5-0003 54JB5-0003 54JB5-0004 54JB5-0005 54L23B150A 64B1510001 64B3300001 64B3330001 64B3360001 64C30-0010 65W2242501 6720230060 68DOO-0001 75123-0060 DCD2560001 11332-0200 14BD139-00 14K955-000 15AOO-0011 15326-3091 15S2A-8096 15351-2091 15S52-1091 15353-2091 15355-2091

SPECFICATION DIODE HER107 IC LM1203N RES 1/4W lOOohm + -5% RES 1/4W 1K + -5% RES 1/4W 10K + -5% RES 1/4W 110ohm + -5% RES 1/4W 1.5K + -5% RES 1l4W 220hm + -5% RES l/4W 2200hm + -5% RES 1/4W 2.2K + -5% RES 1/4W 3.3K + -5% RES 1/4W 3900hm + -5% RES 1/4W 3.9K + -5% RES 1/4W 470hm + -5% RES 1/4W 47K + -5% RES 1/4W 5lohm + -5% RES 1f4W 56Oohm + -5% RES 1/4W 750hm + -5% RES OSW lOOohm + -5% RES OSW 10K + -5% RES OSW 1OOK + -5% RES MOF5W2K + -5% VR 1OOB Sl(VZ067THl) VR 3KB Sl(VZO67THl) ELEC 160V 1OU + -20% ELEC 16V 1OOU + -20% ELEC 16V 47U + -20% ELEC 5OV 4.7U + -20% CER 50V 33P SL + -5% CER 500V 103P Y5P + - 10% CER 2KV 102P Y 5P + - 10% CER 2KV 103P Z5U + -20% CER 50V 104P Y5V + 80% -20% SPARKGAP2OOV SPARK GAP 1KV PEAKING 2.2uH PEAKING 6.8uH JUMPER 10mm JUMPER 1Omm JUMPER 12.5mm JUMPER 15mm 18AWG 150mm au 1015 #22 BASE (2.36D-1P) BASE (XH-1OP) BASE (XH-3P) BASE (XHdP) CRT SOCKET CONN (1.5D-4P) 250mm SCREW M 3x6 ROUND PIN HEAT SINK (15~10.6~30) POWER BOARD ASS'Y POWER F!C. BOARD D-256 TR BD139 TR K955 DIODE IN4148 DIODE Vrrm = 6OOV, 3A lN5406 DIODE BY329-1200V DIODE HER202 DIODE HER103 DIODE HER204 DIODE HER205

LOCATION D2OO,D230,D260 u201 R235,R295 R298,R299 R202,R232,R262,R293 R207,R237,R267 R294 R212,R213,R242,R243,R272,R273 R203,R233,R263 R210,R24O,R270,R291,R297 R2% R204,R234,R264 R206 R208,R209,R238,R239,R268,R269 R292 R205,R265 R266 R201,R231,R261 R214,R244,R274 R282 R283 R211,R241,R271 SVR2Ol,SVR261 SVR202,SVR232,SVR262 (TOSHIBA CRT) C211 C204,C296 C201$231,C261 C291$292 C205,C235,C265 C210 C282 C2a3 C202,C203,C206,C207,C208,C209,C232,C233,C236, C262,C263&264,C266$281,C293,C295,C297 GAP2Ol,GAP231,GAP261 GAP281 L202,L232,L262 L2Ol,L231,L261 5201,5202,5203,5204,5205,5206,5207,5208,J2~,J210,J211 5212,5213,5214,5215,5216,5217,5218,5219,J220,J221 5223,5224,5225,5226,5228,5229 R281 5222 VIDEO BOARD GND2. P204 P201SG CABLE P203 TO VR BOARD CONTRAST P203 P202TO MAINGND,H,V,ABL FOR -GND,-92,-6.3V,-12VT0 Q202,Q232,Q262 TO R211,R241,R271 Q202,Q232,Q262 D256 Q121 QlOl D108,D109,D124 D101,D102,D103,D104 D122 D127 D106,D121 D126 D125 P121

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PARTS NO 15357-1091 15TOO-0010 15233-1201 15233-1801 15233-5091 15253-1011 15253-4701 174N35-000 177812CT0 17SG3842M17TL431-00 22225 1021 222251031 22225-1041 22225-2021 222252201 22225-2211 22225-2711 22225-3021 22225-3931 22225-4701 22225-5621 22225-7501 22245-1001 22245-2221 22245-2291 22245-2701 222454741 22245-6801 23245- 1004 23245-1014 3245-3384 23255- 1835 23255-2735 23765-1045 23785-1019 23785-1509 24665- 1029 24665-1539 25B02-501B 26B3L-0011 26FOO-0001 28167-1001 28167-1011 28167-4701 283D7-221M 28807-2211 28807-4701 28837-4711 28857-1021 32115-6834 32125-102B 32125-103B 32125- 1044 32125-222B 32125-472B 35145-4747 391463317 39446-6817 39546-1017 39546-3328 39546-4717 39646-3317 39999-1047

LOCATION SPECFICATION DIODE HER107 D105,D107 Q122 DIODE 2N5062 ZD121 DIODE ZENER HZ12A1 ZD101,DllO DIODE ZENER HZ18-2 ZD102 DIODE ZENER HZX2 DIODE ZENER lN4764A 1W D123 ZD122 DIODE ZENER lN4756A 1W u102 IC 4N35 u122 IC LM7812CTblC7812CT UlOl ICSG3S42M IC TL431 U121,U123 R116,R133 RES 1/4W 1K + -5% Rlll,R114,R118,R130,R143 RES 1/4W 10K + -5% R112,R113,R115,R137,R144 RES 1/4W 1OOK + -5% R127,R139 RES 1/4W 2K + -5% R117 RES 1/4W 220hm + -5% R129 RES l/4W 22Oohm + -5% R141 RES lf4W 2700hm + -5% R125 RES 1/4W 3K + -5% R109 RES 1/4W 39K + -5% RllO RES l/4W 470hm + -5% RES 1/4W 5.6K + -5% R12S R142 RES 1/4W 750hm + -5% R124 RES OSW lOohm + -5% RES OSW2.2K + -5% R138 R136 RES OSW 2.2ohm + -5% R123 RES 0.5W 270hm + -5% RES OSW 470K + -5% RlOl,R103 R126 RES OSW 680hm + -5% R106 RES MOF 1W lOohm + -5% R122,R140 RES MOF 1W lOOohm + -5% R108 RES MOF 1W 0.33ohm + -5% R131 RES MOF2W 18K + -5% R132 RES MOF 2W 27K + -5% R102 RES MOF3W 1OOK + -5% R121 RES MOF 5W lOOohm + -5% R135 RES MOF5W 15ohm + -5% R107 RES S 5W 1K + -5% R105 RES S 5W 15K + -5% SVR121 VR 500B S2 (VZO68TLl) RT102 NTCR (OSSPOOSL) RTlOl PTCR 27 OHM (270N) c110,c114,c137 ELEC 50V 1OU + -20% ELEC 50V 1OOU + -20% Cl09 Cl33 ELEC 50V 47U + -20% ELEC 400V 220U SNAP IN + -20% 25*4 ClOO,C105 C129,C130 ELEC 160V 220U + -20% (105C) ELEC 160V 47U + -20% (105C) C131,C132 C141,C142 ELEC 16V 470U + -20% (105C) ELEC 35V 1OOOU + -20% (105C) C135,C136 Cl26 PEN 50V 0.068U + -5% PEN 1OOV O.OOlU + -5% C117,C127,C140 PEN lOOVO.OlU + -5% Cl12 PEN 1OOV O.lU + -5% c111,c128,c139 C113,C116 PEN lOOVO.OO22U + -5% Cl24 PEN 1OOV 0.0047~ + -5% Cl25 MPP 25OVO.47U + -5% Cl15 CER 50V 331P Y5P + - 10% Cl23 CER 500V 681P Y5P + -10% CER 1KV 101P Y5P + -10% Cl22 CER 1KV 332P Y5P + -20% Cl06 Cl07 CER 1KV 471P Y5P + -10% Cl21 (C120) CER 2KV 331P Y5P + -10% CER 50V 104P Y5V + 80% -20% C108,C138

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PARTS NO 39c46-3317 42A27-103C 42A27-224B 42D57-4725 45MlK1005 47ElO-0020 47PlO-0020 47SlO-0040 49F52-252B 54JB5-0003 54JB5-0004 54JB5-0005 64B1120001 64B2240001 64B2260001 64B4420001 64B4430002 6720030101 6720230060 68AOO-0010 68DOO-0001 75 123-0060 75123-0070 75123-0081 80100-2802 SSD2560001 llS31-0310 25CO2- 103B 25CO2- 104B 25C02-502B 65F3352001 SSD2560002 25E03-103B 25E03-104B 65F6A42001 76201-0181 SSD2560003 11331-0330 19A02-0003 65F3322001 SSD2560004 52S21-0001 65W4432902 6720230060 76201-0160 SSD2560005 54C23B1051 64P20-0010 65W4431001 SSD2560006 08031-0150 08031-0160 67207-0001 73012-0001 74130-0010 79130-0010

SPECFICATION CER 2KV 331P Y5V + -10% X-CAP 25OVO.OlU + -20% X-CAP250V0.22U + -20% Y-CAP 400V 4700P + -20% CHOKE 10uH LINE FILTER 20mH SIDE PIN D-256 POWERTRANS. D-256 FUSE 250V 2.5A 5ST JUMPER 1Omm JUMPER 12.5mm JUMPER 15mm BASE (2.36D-2P) 1Omm BASE(1.5D-4P) BASE (1.5D -6P) BASE (VH-2P) BASE (VH3P) 2P SCREW M3xlO SCREWM3x6 FUSE CLIP ( X 0 5 2) ROUND PIN HEAT SINK (15~10.6~30) HEAT SINK (23x16~30) SK043 HEAT SINK (50~18.5~45) 26mm SILICON RUBBER (TO-3P3.7D) VR ASS'Y PCB VR BOARD. VR 1OKB (VE12CH2 10K) VR 1OOKB (VE12CH2 100K) VR 5KB (VE12CH2 5K) FLAT CABLE (XH-5P) 200mm VR ASS'Y VR 1OKB (VB12L(7*5)N15KC) VR 1OOKB (VB12L(7*5)N15KC) VRBKT. LED ASS'Y PCB LED BOARD. LED (CAD-256 PRIVATE) FLAT CABLE (XH-2P) 200mm SW. POWER ASS'Y PUSH SW. CONN (VH3P) 290mm (TUV) SCREW M 3x6 SW. BKT. AC SOCKET ASS'Y GND WIRE (1OOmm 4.3~) ACSOCKET CONN (VH3P) #18 1617 100mm SWIVEL BASE ASS'Y SWIVELBOWL. SWIVEL BASE. SWIVELSCREW SPRING SWIVEL RUBBER FOOT SWIVEL FIXER

LOCATION Cl20 Cl18 Cl01 C102,C103 L101,L102,L103,L104 LFlOl T121 TlOl FlOl J102,5103,5104,5105,5107,5109,J110,5111 5106 JlOl,J108 P104TO DEGAUSSING. P121 TO CRT 92V,6.3V,12V,GND P122TO MAIN B + ,92v,FB,24v,12V ,GND P105 TO FBT P101,P102,P103TO SW. POWER,AC SOCKET QlOl Q121,D122,U122 FOR FlOl FOR R135 Q121 D122,U122 QlOl QlOl D256 D -256 VR301(H-PHASE),VR402(V_CENTER) VR4Ol(V-SIZE) VR302(HSIZE) P3Ol,P401 D256 VR291 (CONTRAST) VR303(BRIGHT) P302,P203 D256 D256 D-256 (R2112N) LED1 D256

D256 D256 FROM AC SOCKET TO BKT(B) D256 D-256 D-256

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