Hitachi CM615ET Service Manual Download Page 24 | Manualshive

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23

B. Monitor Check Flow Chart

B-1. No Raster

No raster

Check power
indicator is lit

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

No

No

No

No

No

No

Check

contrast & brightness

control adjust to MAX.

Check

HEATER voltage= 6.3 VDC

G1=

-50~70

VDC

G2=

350~700VDC

Check CRT

Check Q801

Check power
supply circuit

Check U801 pin6
square waveform

U801 pin7 Vcc

F.B.T pin1

about 700Vpp

Check U401

pin7 output

square waveform

Check U401

Check

power supply

circuit

Check AC

power input

Check T802 D506

Check Q505 "S" pin

voltage 180VDC

Check Q417, Q416

Check Q504

collector voltage

about 900 Vpp

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Summary of Contents for CM615ET

Page 1: ...eur die Sicherheitshinweise und Hinweise zurProduktsicherheit indiesemWartungshandbuchzulesen SERVICE MANUAL MANUEL D ENTRETIEN WARTUNGSHANDBUCH Data contained within this Service manual is subject to alteration for improvement Les données fournies dans le présent manuel d entretien peuvent faire l objet de modifications en vue de perfectionner leproduit Die in diesem Wartungshandbuch enthaltenen ...

Page 2: ...hall be within the limitation H PHASE SCREEN CENTER 3 mm V CENTER SCREEN CENTER 3 mm The external control ranges of display for all modes listed in section 2 4 H POSITION 50 mm V CENTER 25 mm C Linearity The CONTRAST and BRIGHTNESS control shall be properly adjusted at 20 F L with Full intensity reverse pattern then change to crosshatch Pattern 12x10 Hx V the size of grid of crosshatch pattern in ...

Page 3: ...ing around 360 degree 8 Tilt distortion shall be less than 2 mm when facing east and less than 1 degree when turning around 360 degree The measurement of tilt is defined to measure the vertical axis with respect to the bezel the absolute value of the difference between the extreme left and right measurement of the center horizontal line E Alignment Procedure E 1 Brightness Adjust Adjust the VR980 ...

Page 4: ... and 5000 R B GAIN setting to get raster color temperature within specified finally adjust BRI to get raster 0 06FL High light adjust 9300 6500 5000 x 0 283 10 x 0 313 10 x 0 324 10 y 0 297 10 y 0 329 10 y 0 342 10 Y FL Y FL Y FL Select Timing 4 measure 2 square set CONT to Max position and SUB CONT to 127 R B GAIN to 200 G GAIN to 200 adjust SUB CONT to get light output 50 FL for 9300 repeat abov...

Page 5: ...er within 2mm Geometric adjust adjust control key to get minimize distortion H linearity check check and make sure linearity meet spec CROSS HATCH PATTERN 10X8 2 MAX MIN X100 MAX MIN Any 10 Adjacent 5 V linearity check check and make sure linearity meet spec 2 MAX MIN X100 MAX MIN Any 10 Adjacent 6 Geometric check check and make sure geometric meet spec Get into OSD select EE USER item press ENTER...

Page 6: ... Input timing 1 adjust the display be normal position and size 2 Adjust front control key to get the best pincushion distortion and tilt 3 Select P502 and adjust VR402 VR404 to get the best geometry distortion J 5 Focus Adjustment 1 Input timing 1 EXT BRIGHTNESS move to center position Use EXT CONTRAST set the brightness to 25FL 2 Adjust Focus VR mounting on F B T to get best focus C947 75 2v C946...

Page 7: ... 2 VESA 68 6K 2 SQUARE 3 VESA 68 6K FULL WHITE J 8 Power Saving Function Check The power source is 230Vac input When remove the sync signal the monitor should enter suspend mode and then off mode When power saving the power consumption of monitor should be less than suspend mode 8w off mode The monitor recovering time from suspend mode or off mode to on mode should be less than 5 seconds TABLE 1 T...

Page 8: ...600 40 P P 37 879 60 317 36 4 16 579 20 15 84 2 2 0 607 3 2 0 106 1 0 026 7 VESA 800 600 49 5 P P 46 875 75 21 333 13 333 16 162 12 8 3 232 0 448 1 616 0 064 0 323 0 021 8 VESA 800 600 56 25 P P 53 674 85 061 18 631 11 756 14 222 11 179 2 702 0 503 1 138 0 056 0 569 0 019 9 VESA IBM XGA 1024 764 65 N N 48 363 60 004 20 677 16 666 15 754 15 88 2 462 0 6 2 092 0 124 0 369 0 063 10 VESA 1024 768 78 7...

Page 9: ...8 Fig 2 Fig 3 ...

Page 10: ...9 2 CONTROL AND CONNECT LAYOUT Main PCB ...

Page 11: ...10 B Video PCB ...

Page 12: ...01 TILT CONN P8 CANCEL COIL CONN JP1 PRESET CONN P902 DEGAUSSING COIL CONN P703 X RAY TEST PAD P302 P303 P301 P5 HFLB Vout DSUB9 DDC SCL GND EEP SCL R IN DDC SDA G1 EEP SCL GND GND 6 3V H OUT B IN V SYNC 5V GND GND H SYNC 75V G IN 12V GND CONTRAST 1 2 5 3 4 6 8 7 ...

Page 13: ...12 3 Power Supply Portion ...

Page 14: ...P Circuit 5 42V For vertical deflection and Horizontal predriver 6 16V For vertical preampifier B Deflection Produce YOKE deflection current of horizontal and vertical CRT H V and bias that makes screen raster C Video Amplify the video signal and add the signal to the cathode of CRT to produce video on the screen D Digital Controllor With the EEPROM and PROGRAM the micro processor u P control all ...

Page 15: ...14 E Function Block Diagram ...

Page 16: ...back level of U901 PIN1 F 3 Snubber Ckt Energy stored in the leakage inductance of T900 cause a voltage spike which be added to the normal reset voltage across T900 when Q901 turn off The clamp consisting of D905 R904 and C907 limits this voltage excursion from exceeding the Vds rating of Q901 In addition a turn off snubber made up of D906 R905 and C908 keeps power dissipation in Q901 low by delay...

Page 17: ...nc or input to U1 u P then u P output the H out V out to U401 TDA4858 G 2 Hor Processor Vert Pre Amp Fig 2 is the block diagram of IC TDA4858 Hor processor The H out that come from u P will input to the pin 15 of U401 it will be compared with the oscillator sawtooth voltage by the PLL1 pin 26 phase detector After that it will be compared again with the flyback pulse pin 1 by the PLL2 The PLL2 dete...

Page 18: ...iagram of IC TDA4866 G 4 Horizontal Driver Circuit The driver pulse that come from U401 pin7 drive Q417 Q416 TO Q503 then transfomer T501 convert driver pulse to driver current to drive horizontal output transistor Q504 G 5 Horizontal Output Stage 31K 35K 37K 43K 46K 53K 60K 64K 68K SW4 C515 SW3 C539 SW2 C521 SW1 C520 L ACTION L L H L L L L L L L L L H H H H H H H H H H L L L H H H H H H H ...

Page 19: ...ormer In the primary of F B T there is about 900Vpp in the LC resonant interval It convert to the secondary of F B T to produce about 26KV for CRT anode voltage The other bias for CRT IS G4 G3 4 8KV G2 0 1000V and G1 160V ...

Page 20: ...19 H 1 BLOCK DIAGRAM ...

Page 21: ...e WHITE BALANCE and CONTRAST shall be adjusted by adjustment the bias voltage of U301 Fig 4 is the block diagram I 2 VIDEO AMPLIFIER The video amplifier is U303 LM2439 it amplify video signal to about 40Vpp Video output signal add to cathode by AC coupling The DC bias is controlled by the output pwm of IC U302 Fig 5 is the block diagram I 3 BLOCK DIAGRAM KA2143B ...

Page 22: ...21 LM2439 Simplified Schematic Diagram One Channel ...

Page 23: ...ck and replace ZD903 R918 R919 R916 D911 C920 Check and replace Q902 Q903 U901 D908 R908 Check D940 C940 Q940 Q941 VR980 Check D941 C944 Q942 Q943 Check D944 D945 C949 Q504 R538 Q505 Check fuse open Is Q901 VDS waveform normally Is 8V in spec Is 15V in spec Is B voltage correct Combine with monitor check operating frequency Stop OK ...

Page 24: ...to MAX Check HEATER voltage 6 3 VDC G1 50 70VDC G2 350 700VDC Check CRT Check Q801 Check power supply circuit Check U801 pin6 square waveform U801 pin7 Vcc F B T pin1 about 700Vpp Check U401 pin7 output square waveform Check U401 Check power supply circuit Check AC power input Check T802 D506 Check Q505 S pin voltage 180VDC Check Q417 Q416 Check Q504 collector voltage about 900 Vpp ...

Page 25: ...24 No 0502 ...

Page 26: ...25 No 0502 ...

Page 27: ...CM615ET Schematics and PCBs Supplement CM615ET302 CM615ET303 26 ...

Page 28: ...3 C406 25V NP 10U GND GND 39K 1 4W R454 3B1 ZD404 2 4700P PPN C428 10K 1 4W R459 Q442 2SD667 C427 16V 100U R732 1 12K GND R437 620K R420 27K GND R407 1 4W 13K C604 63V 100U 470P C433 GND MEF 01U C416 R406 2 2M R471 1 18 2K R409 1M 1N4148 D430 R466 680K MEF 012U C417 20K VR405 R444 330K 1 4W GND R418 1 2K 1 4W GND GND R442 4 7K R434 150K 1 4W R494 1 4W 56 R440 270K 1 4W 2SC945 Q438 1U C432 2SC945 Q...

Page 29: ... Q508 GND PPN 3300P C531 R861 1 2W 120K 1 4W 100 R530 330P C554 330P C555 R535 2W 1 GND GND 4 7K R545 GND 1 4W 100K R822 1SS82 D505 GND 1N4148 D821 GND GND RN1206 Q510 1 4W 2 2K R549 10K R541 01U C516 1U C825 22K R544 R811 1 4W 150 GND R503 7W 240 FR104 D526 L508 BEAD R836 22K 10K 1 4W R830 R537 1 4W 33K T801 BEAD L89 GND 4 7K R832 10K R831 GND IRFS640A S D G Q517 30 2 ZD805 Q816 2SC945 22K R821 2...

Page 30: ...AC0 RESET VDD GND OSCO OSCI P15 P14 P13 P12 AD1 P11 AD0 P10 INTE P16 P27 P26 P25 P24 P23 P22 P21 P20 DDC SDA DDC SCL DAC8 DAC9 DAC10 DAC11 DAC12 DAC13 VSYNCO HSYNCO DAC7 DAC6 DAC5 DAC4 DAC3 HSYNCI VSYNCI NT6861 U1 2 1 JP1 RA2 10KX6 8MHz Y1 GND SW1 PT 002 B2 R1 4 7K R13 1 4W 100 L30 BEAD 10V 100u C9 SW4 PT 002 B2 SW3 PT 002 B2 SW2 PT 002 B2 GND O G I KIA7805P U3 R4 5 1K 5 4 3 2 1 P3 R69 10K R8 1 9 ...

Page 31: ...R982 A K R KA431Z U980 1WR F 1 R94C Q960 RN1203 LED1 LYSG3393 R7 10K R920 15SP008 RT901 1WR F 0 2 R94B 4148 D911 1WR F 0 2 R94A GND1 1 4W 100K R940 101J C923 2 5 4 8 1 3 6 7 U901 3842A ER302 D941 50VA 22U C948 4148 D949 3 2 1 P901 IX 0342 P 47K R949 472Y1 C90A GND1 HD941 GND1 16VA 47U C927 R925 1 2W 1M S HD944 1 4W F 10 R994 GND5 102K C913 332K C920 1 4W 470 R919 1KV 103 C905 A K R BT169D Q920 BD9...

Page 32: ...No 0502 DEFLECTION POWER BOARD VA 717 31 ...

Page 33: ...No 0502 VIDEO SWITCH BOARDS P302 P303 P301 U301 U302 G ND1 U303 PA301 1 1 1 1 SOCK1 G2 VIDEO BOARD VQ 602 SWITCH BOARD VR 717 32 ...

Page 34: ...CM615ET321 Schematics and PCBs Supplement 33 ...

Page 35: ... I 78L05 U3 GND 16V 47U C1 10K R19 10K R20 R16 D2 1N4148 D1 16V 100U C2 JUMP R67 GND 10K R24 10K R23 1K R13 50V 4 7U C10 GND 10K R21 GND GND 10K R11 10K R5 SW4 10K R1 10K R22 HZ5C1 ZD1 Q5 C945 GND R27 10K R4 1N4148 D3 50V 4 7U C14 1K R40 220P C15 GND GND 1000P C16 10K R18 C17 5 4 3 2 1 P105 GND GND GND HZ9C1 D82 GND HZ5C1 D81 GND 100P C85 GND GND 100P C86 GND D80 GND 150P C66 8V CONTRAST BRI SW1 U...

Page 36: ... 2W 270 R608 BF420 Q601 50V 100U C603 FR10 04 D601 10K R516 12K R425 GND 22K R612 10K R611 10K R610 MEF 50V 001U C607 V DY YOKE D802 1N5817 D502 GND 120uH L805 1W 1 R609 MEF 22U C606 GND R606 2 2 R607 2SC945 Q401 10K R514 GND GND 01U C515 GND 16V 47U C417 GND GND 10K R424 10K R422 10K R423 R548 1W 47 R807 1W 100 R806 6mH L803 2SC945 Q402 MEF 22U C530 2SC945 Q403 50V 1U C824 10K R836 FR10 04 D810 5...

Page 37: ... 1 2W R954 16VA 470U C942 NC D960 1N4148 D913 GND5 GND1 D942 ER306 NC R962 D943 UF4006G GND1 472Y1 C960 1 4W 10K R922 100VB 470U C946 25VB 1000U C970 820 1 2W R942 1 4W 4 7K R944 10U 50V C923 C947 200VB 47U 1000U 16VB C940 R943 1 4W 10K X2 0 47U C902 1 2W_F 10 R983 1 4W 1M R931 GND1 KSP44 Q902 GND5 1N4148 D921 NC Q960 1N4148 D922 GND1 GND1 HS942 NC 1 4W 4 7K R951 102K C913 1 2W_F 10 R981 PR901 25V...

Page 38: ...No 0502 DEFLECTION POWER BOARD VA 739 37 ...

Page 39: ...No 0502 VIDEO SWITCH BOARDS U201 U202 U301 SOCK1 P301 P303 P302 VIDEO BOARD VQ709 SWITCH BOARD VR 739 38 ...

Page 40: ...CM615ET301 PARTS LISTS CM615ET302 CM615ET303 CM615ET321 39 ...

Page 41: ...308 FAH79911200 BEZEL ASSY 312 MAA20085605 SCREW M4X0 7 314 KA000001ZZ4 LOCKING CABLE TIE 317 MC300000607 WASHER 318 LC021000007 COIL COPPER FILM 319 DC030034806 CONNECTOR WAFER 320 VC 602 BOARD 321 NA100950206 WIRE SET 322 HOUSING CONNECTOR SET 351 CRT YOKE ASSEMBLY 351A AC500019850 CRT N L A EXCHANGE THE UNIT 351B CL700001900 COIL SET 351C DC020115511 HOUSING CONNECTOR SET 351D DC020136400 HOUSI...

Page 42: ...20085605 SCREW M4X0 7 314 KA000001ZZ4 LOCKING CABLE TIE 317 MC300000607 WASHER 318 LC021000007 COIL COPPER FILM 319 DC030034806 CONNECTOR WAFER 320 VC 602 BOARD 321 NA100950206 WIRE SET 322 HOUSING CONNECTOR SET 351 AC500024540 CRT 351A AC500019850 CRT N L A EXCHANGE THE UNIT 351B CL700001900 COIL SET 351C DC020115511 HOUSING CONNECTOR SET 351D DC020136400 HOUSING CONNECTOR SET 352 VIDEO ASSEMBLY ...

Page 43: ...77 CRT AROUND W CORE 0 5X120T 302 DC020135100 HOUSING CONNECTOR SET M557 MB CRT E CAN TCO SAM 303 DC020144700 H CON SET H700 MB CRT E CAN TCO CPT 305 LC021000007 COPPER FILM M770 ID99 XOD145 Xt 0 05mm 306 KA000001ZZ4 LOCKING CABLE TIE 142MM 307 DC190018330 CB ASSEMBLYM788 20276 2CORE 1 5M BLK LOCK 309 KA006700ZZ1 LOCKING CABLE TIE W2 5XL203 WHITE YJ 203S 310 NA200600200 NET SET D3 96X60XW5 6 112C ...

Page 44: ...C539 CA010B6ZHT0 0 1MF 50V CERAMIC C37 CA022E6KHT0 220PF 50V CERAMIC C554 CA033E6KHT0 330PF 50V CERAMIC C38 CA022E6KHT0 220PF 50V CERAMIC C555 CA033E6KHT0 330PF 50V CERAMIC C39 CA022E6KHT0 220PF 50V CERAMIC C561 CB22003M0TH 220MF 16V C42 2441395 1000PF 50V 10 0890087 C562 CB22003M0TH 220MF 16V C70 CB047A6M0TH 4 7MF 50V C603 CB22014M101 2200MF 25V C401 CJ001B600T2 0 01MF 50V MYLAR C604 CB10007M0T1 ...

Page 45: ...M0TH 47MF 16V D801 BC1YM36E0N0 BYM36E C927 CB04703M0TH 47MF 16V D802 BC1F54082N0 UF5408 C930 CB10013M300 1000MF 16V D803 BC1YV36C0T0 BYV36C C940 CB10013M300 1000MF 16V D804 BC1YV36C0T0 BYV36C C941 CB10004M0TH 100MF 25V D805 BC1ER1030T0 HER103 DO 41 C942 CA010CEMH00 0 01MF 1KV D806 BC1F40062T0 UF4006G C943 CB0100A43T2 10MF 100V D807 BC1F40062T0 UF4006G C944 CB10014M006 1000MF 25V D808 T531053 1N414...

Page 46: ...101201101 WIRE SET 504 MAA20096402 SCREW M3X0 5 GND A DC090001302 TERMINAL CHASSIS Q505 BB596340000 SFP9634 GND B NA101501801 WIRE SET Q505a LC040004225 HEAT SINK JP1 DC030020504 CONNECTOR WAFER Q505b MAA20096402 SCREW M3X0 5 L501 CL220004510 COIL 2 63UH LINE Q508 BBX120600T8 RN1206 TE4M L502 CL320003000 COIL 270UH CHOKE Q509 BBX120600T8 RN1206 TE4M L503 CL310009300 COIL 8MH CHOKE Q510 BBX120600T8...

Page 47: ...1F M R426 0188152M 39KOHM 1 2W 5 CF R15 100041 100 OHM 5 0100041F M R427 CC4702111T6 47KOHM 1 4W 5 R16 100041 100 OHM 5 0100041F M R428 CC2202225T0 22KOHM 1 8W 1 M F R17 700053 8 2KOHM 5 0113637 R429 700056 15KOHM 5 R20 100041 100 OHM 5 0100041F M R430 CE10022600H 10KOHM 1 8W 5 R21 100041 100 OHM 5 0100041F M R431 CC1821225T7 1 82KOHM 1 8W M F 1 R22 CC1002111T1 10KOHM 1 4W 5 R432 CC9760225T9 976 O...

Page 48: ...220KOHM 1 2W 5 R533 CC2201211T0 22KOHM 1 8W 5 M F R825 CC9102111T9 91KOHM 1 4W 5 R534 CC04708510H 47 OHM 5W 5 R826 CE10022600H 10KOHM 1 8W 5 R535 CC012A591MH 1 2 OHM 5 2W R827 CC4700011T1 470 OHM 1 2W 5 R536 CC022A111T4 2 2 KOHM 1 4W 5 R830 CC1002111T1 10KOHM 1 4W 5 R537 CC4702111T6 47KOHM 1 4W 5 R831 CE10022600H 10KOHM 1 8W 5 R538 CC012A591MH 1 2 OHM 5 2W R832 700049 4 7KOHM 5 CARBON FILM R539 11...

Page 49: ...700063 47KOHM 5 0187105 ZD1 2331797 HZ5C1 2331797M 5331015 Z R950 CC0750011T2 75 OHM 1 2W ZD2 2331797 HZ5C1 2331797M 5331015 Z R961 CC6200111T7 620 OHM 1 4W 5 ZD102 2331797 HZ5C1 2331797M 5331015 Z R962 CC6200111T7 620 OHM 1 4W 5 ZD404 2331797 HZ5C1 2331797M 5331015 Z R980 CC1001211T2 1KOHM 1 8W 5 ZD442 2331844 HZ12B1 23375642 R981 CC0470211T2 47 OHM 1 8W ZD491 2331844 HZ12B1 23375642 R982 CC10012...

Page 50: ...V CERAMIC L306 DC1510009T0 COIL FERRITE BEAD C228 0244171R 0 01MF 50V 0244171 1712 L307 DC1510009T0 COIL FERRITE BEAD C229 0244171R 0 01MF 50V 0244171 1712 L308 DC1510009T0 COIL FERRITE BEAD C230 0244171R 0 01MF 50V 0244171 1712 L309 DC1510014T0 COIL FERRITE BEAD C232 CA056F6JHT0 56PF 50V CERAMIC L310 DC1510014T0 COIL FERRITE BEAD C240 0244171R 0 01MF 50V 0244171 1712 L311 DC1510014T0 COIL FERRITE...

Page 51: ...1 NET WIRE SET R229 CC1001111T7 1KOHM 1 4W 5 COVE1 NA201200201 NET WIRE SET R231 0100113M 100KOHM 1 8W 5 COVER ECM77725100 SHIELD B R232 0100113M 100KOHM 1 8W 5 ECM77724100 SHIELD U R233 0100113M 100KOHM 1 8W 5 R234 0100113M 100KOHM 1 8W 5 R235 CC0150211T7 15 OHM 1 8W 5 R236 CC0750225T9 75 OHM 1 8W 5 METAL FILM R237 CC0150211T7 15 OHM 1 8W 5 R238 CC0750225T9 75 OHM 1 8W 5 METAL FILM R239 CC0150211...

Page 52: ...129301 HOUSING CONNECTOR SET P102 DC020129601 HOUSING CONNECTOR SET R4 CC5101211T2 5 1KOHM 1 8W R5 CC2701211T3 2 7KOHM 1 8W R6 CC3601211T2 3 6KOHM 1 8W R7 CC5601211T6 5 6KOHM 1 8W R65 CC1301211T1 1 3KOHM 1 8W SW1 DE611000607 SWITCH SW2 DE611000607 SWITCH SW3 DE611000607 SWITCH SW4 DE611000607 SWITCH 51 ...

Page 53: ...9 991 80 224 Email rplan hitachi eu com Hotline 49 180 551 25 51 12ct min Email HSE DUS Service Hitachi eu com HITACHI EUROPEAB HITACHI EUROPE SRL Box 77 Via T Gulli n 39 S 164 94 KISTA 20147 MILAN SWEDEN ITALY Tel 08 562 711 00 Tel 02 487861 Fax 08 562 711 11 Fax 02 48786381 Servizio Clienti Email csgswe hitachi eu com Tel 02 38073415 Email customerservice italy hitachi eu com HITACHI EUROPE LTD ...

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