Sony DXF-20W Service Manual Download Page 28

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5-2

DXF-20W

5-2

R202

R203

10k

R204
22k

R205

8.2k

R206

470

R207
470

R208

4.7k

R210

470

R211

220

R213

220

R209

18k

R212

820

C202

33u

C203

L201
8.2uH

Q202

C4081

Q203

A1576

Q204
XN6435

DELAY

DL201

G355ENK-7640=P3

R214

4.7k

R215

3.3k

R216

330

R218

180

R221

4.7k

R219

330
R220

R222
5.6k

R224

1.8k

C204

82p

Q205

A1532

R217

10k

Q207

XN6534

D203

DAN202U

Q208

C4102

Q209
C4102

R225

100

R226
10k

R228

10k

R229

3.3M

R230

3.3M

R227

22k

R231

3.3M

R232

2.2k

R233

56k

R234

33k

R235

47k

Q210

C4102

Q211
A1579

D204

HZK9CLTR-E

C207

0.01u

C208

0.01u

16V

POS

16V

50V

25V

50V
B

RV204

100kB

R201

10k

R223
6.8k

RV205:BRIGHTNESS

Q206
K880

C201

10u
20V

Q201

C4081

RV203

200B

RV203 : SUB CONTRAST

R237

220

RV205

10kB

D202

CL-201HR-C

D201

CL-201HR-C

RV201:CONTRAST

RV202:PEAKING

RV206:SUB BRIGHT (WIDE)

50V

+9.5V

GND

VIDEO

GND

BRIGHT CTL

INV C,BLK

16:9

C,SYNC

TALLY OUT

TALLY IN

PEAK. CTL

CN201

SFR-14R-1STE1-LF

RV201

1kB

R236

56k

RV206

500kB

Q212
K664

RV204:SUB BRIGHTNESS

R246

Q213

C4178

R245

10K

R244

10K

C212

0.01u

RV202

10KB

R242

300

R241

13K

R243

100

C211

4.7u

C210

3.3u

R240

220

16V

10V

50V

2125

1608

2125

R239

10K

C209

R238

10V

IC201A
NJM2904M

IC201B
NJM2904M

C205

4.7u

C206

10u

C213
100p

50V

C214

12p

50V

VA-229

BOARD NO. 1-868-571-11

VA-229

Summary of Contents for DXF-20W

Page 1: ...ELECTRONIC VIEWFINDER DXF 20W SERVICE MANUAL 1st Edition ...

Page 2: ...rtes Fachpersonal bestimmt Alle Wartungsarbeiten dürfen nur von qualifiziertem Fachpersonal ausgeführt werden Um die Gefahr eines elektrischen Schlages Feuergefahr und Verletzungen zu vermeiden sind bei Wartungsarbeiten strikt die Angaben in der Anleitung zu befolgen Andere als die angegeben Wartungsarbeiten dürfen nur von Personen ausgeführt werden die eine spezielle Befähigung dazu besitzen AVER...

Page 3: ...acing CRT DY Assembly 1 3 E 1 6 Arranging Harness 1 4 E 1 7 Disconnecting Connecting Flexible Card Wire 1 5 E 1 8 Notes on Spare Parts 1 6 E 1 9 Unleaded Solder 1 6 E 2 Alignment 2 1 Preparation 2 1 E 2 1 1 Connecting Diagram 2 1 E 2 1 2 Required Equipment 2 1 E 2 1 3 Notes on Adjustment 2 1 E 2 1 4 Initial Setting 2 1 E 2 2 Viewfinder System Adjustment 2 2 E 2 2 1 Heater Voltage Pre Adjustment 2 ...

Page 4: ...tems that premise the service based on the components parts such as alignment schematic diagrams board layouts and spare parts list assuming use of system and service engineers Relative manual Besides this service manual the following manual is available for this unit Operating Instructions Supplied with this unit This manual is necessary for application and operation of this unit Part number 3 99...

Page 5: ... MALE External view Pin No Signal I O Specifications 1 PEAKING CONT IN Zi 5 kZ 2 EXT DC 12 V OUT 10 6 V to 17 0 V dc 3 REC TALLY OUT Zo 500 Z 4 BATT ALARM OUT Zo 1 1 kZ 5 NC IN ON 0 0 5 V 6 VF VIDEO X OUT V 1 0 V p p 7 EXT DC 12 V OUT 10 6 V to 17 0 V dc 8 NC 9 NC 10 SERIAL DATA OUT Zo 500 Z 5 V p p 11 VF VIDEO G OUT GND for VF VIDEO 12 EXT DC GND GND for 12 V dc 13 NC 14 DISP ON OFF IN 15 SERIAL ...

Page 6: ...eps Align red lines of the VF tube and VF tube sub assembly when inserting and turn the hold ring clockwise until it locks n Do not use any type of solvent such as alcohol benzine or thinner to remove stains Be sure to attach the eyecup to the VF or the MC protector may come off To protect the viewfinder lens from drops put the MC protector in the filter holder and attach the eyecup securely 1 4 2...

Page 7: ...esses are not caught by the upper chassis 14 Close the MIC clamp and tighten the MIC clamp screw 1 5 Replacing CRT DY Assembly 1 Loosen the MIC clamp screw to open the MIC clamp 2 Remove the two screws K2 6 x 5 3 Remove the three hexagon cap screws 2 6 x 6 to detach the upper chassis 4 Remove the two screws P2 x 3 5 and remove the PC board plate n When attaching the PC board plate be careful of it...

Page 8: ...rd turn of the VF tube assembly 1 Arrange the 8 wire harness as shown in the figure and clamp it at point A so that it is not in contact with the inside of the VF tube assembly or the lower chassis A VF tube assembly 8 wire harness Lower chassis 2 Clamp the high voltage cable and the 8 wire harness at point B 3 Clamp the 8 wire harness at point C 4 Arrange the high voltage cable as shown in the fi...

Page 9: ... 88 board and VA 229 board Take care not to break this flexible card wire This shortens the wire life Disconnecting 1 Turn off the power 2 Slide portions A in the direction of the arrows to unlock and pull out the flexible card wire Connecting n Be careful not to insert the flexible card wire obliquely Check that the conductive surface of the flexible card wire is not soiled with dust 1 Slide port...

Page 10: ...re not registered as spare parts 1 9 Unleaded Solder Boards requiring use of unleaded solder are printed with a lead free mark LF indicating the solder contains no lead Caution Some printed circuit boards may not come printed with the lead free mark due to their particular size LEAD FREE MARK m Be sure to use the unleaded solder for the printed circuit board printed with the lead free mark The unl...

Page 11: ...tion Adjustment When the aspect ratio is not specified perform adjust ment in the 16 9 mode As for details on the setting method of the aspect ratio refer to the operating instruc tions of the video camera or camcorder to be used This alignment is described for both NTSC PAL sys tems When performing the adjustment adjust according to the level appropriate for each system 2 1 4 Initial Setting Vide...

Page 12: ...other Therefore repeat the adjustment until all specifications are met Preparation Object Resolution chart Measuring equipment Waveform monitor Lens IRIS AUTO MANU MANU Viewfinder BRIGHT control Mechanical center CONTRAST control Fully clockwise 2 PEAKING control Fully counterclockwise 3 Adjustment Procedure 1 Adjust the lens zoom so that the resolution chart frame coincides with the underscanned ...

Page 13: ...ical center CONTRAST control Mechanical center PEAKING control Fully counterclockwise 3 Adjustment Procedure 1 Adjust the lens zoom so that the resolution chart frame coincides with the underscanned picture frame on the monitor screen 2 Set the resolution on the monitor screen to the best state with the lens focus 3 Adjust the lens iris so that the white level at VIDEO OUT connector on the camera ...

Page 14: ...nding black level by turning 1RV204 SUS BRIGHT 4 3 the VA 229 board clockwise from the counterclockwise maximum point Set the aspect ratio to 16 9 mode again Adjust 1RV206 SUS BRIGHT 16 9 the VA 229 board in the same way as the 4 3 mode 2 2 4 Heater Voltage Adjustment Note When performing this adjustment check 2 2 5 Bright Calibration Adjustment Preparation Measuring equipment Digital voltmeter AC...

Page 15: ...is 100 2 IRE 5 Adjust the BRIGHT control fully clockwise and the CONTRAST control fully counterclockwise to display the pedestal portion 6 Adjust 1RV101 H SHIFT N DF 70 board so that the pedestal portion on both sides are equal Viewfinder screen Adjustment procedure For PAL 1 Attach the viewfinder to the PAL system video camera 2 Adjust the lens zoom so that the resolution chart frame coincides wi...

Page 16: ...s 700 14 mV 5 Adjust the BRIGHT control fully clockwise and the CONTRAST control fully counterclockwise to display the pedestal portion 6 Adjust 1RV102 H SHIFT P DF 70 board so that the pedestal portion on both sides are equal Viewfinder screen Adjustment procedure For NTSC 1 Attach the viewfinder to the NTSC system video camera 2 Adjust the lens zoom so that the resolution chart frame coincides w...

Page 17: ...tor on the camera is 100 2 IRE 5 Adjust 1RV103 V SIZE N DF 70 board so that the V size of resolution chart is underscanned by approxi mately 2 mm from the CRT picture frame Viewfinder screen Adjustment procedure For PAL 1 Attach the viewfinder to the PAL system video camera 2 Adjust the lens zoom so that the resolution chart frame coincides with the underscanned picture frame on the monitor screen...

Page 18: ...ns iris so that white level at VIDEO OUT connector on the camera is 700 14 mV 5 Adjust 1RV104 V SIZE P DF 70 board so that the V size of resolution chart is underscanned by approxi mately 2 mm from the CRT picture frame When 1RV104 is not adjusted the adjustment may not be performed by just 1RV103 In such case adjust 1RV103 after roughly adjusting by 1RV104 Viewfinder screen Adjustment procedure F...

Page 19: ...centering magnet adjustment in the check of this section perform 2 2 3 Horizontal Frame Adjustment and 2 2 7 Vertical Frame Adjustment Preparation Measuring equipment Waveform monitor Viewfinder BRIGHT control Mechanical center CONTRAST control Mechanical center PEAKING control Fully counterclockwise 3 Adjustment procedure 1 Adjust the lens zoom so that the resolution chart frame coincides with th...

Page 20: ......

Page 21: ...PRING LEAF 2 23 3 697 156 01 o CUSHION DROP PROTECTION 2 24 3 991 416 01 s LABEL VF 25 3 697 160 01 o LABEL VF C 26 3 991 434 01 s LID COVER 27 3 710 008 02 s HOUSING STOPPER 28 3 719 381 02 s SCREW P M2X4 ZNBK LOCK 29 3 854 132 01 s GEL MIC 30 9 885 083 47 s SCREW 31 9 885 107 24 s CABLE FLAT 32 9 885 107 22 s CRT DY CONNECTOR ASSY 33 9 885 107 95 s MOUNTED CIRCUIT BOARD DF 70 34 3 609 583 02 s S...

Page 22: ...OMPRESSION 109 110 3 623 709 01 o MC HOLDER 111 3 623 710 01 s MC GLASS 112 3 682 494 02 o EYE CUP S 113 3 692 136 03 s FIXED RING 114 3 692 139 01 s MIRROR 2 115 3 697 151 01 s RING VF 116 3 697 154 01 s HOLDER MIRROR 3 117 3 991 417 01 s PLATE A DISPLAY No Part No SP Description 118 3 697 167 04 s VF TUBE 4 119 3 722 485 01 o ROLLER SLIDE 120 3 723 073 01 s CUSHION MIRROR 121 3 726 904 01 s RING...

Page 23: ... ACTING FBT 9 885 107 19 s FLYBACK TRANSFORMER HLC 9 885 083 37 s COIL HORIZONTAL LINEARITY IC2 9 885 107 20 s REGULATOR CONTROL IC L2 9 885 083 50 s COIL INDUCTOR SW1 1 762 488 11 s SWITCH TOGGLE SW2 1 762 489 11 s SWITCH TOGGLE 3 3 Supplied Accessories Ref No or Q ty Part No SP Description 1pc A 8278 412 H s SHOE ASSY VF 1pc 3 991 782 01 s OPERATING INSTRUCTIONS 1pc 7 700 736 04 s WRENCH L SHAPE...

Page 24: ......

Page 25: ... 3 7 3 8 3 9 3 10 3 11 3 12 3 13 3 14 FLEXIBLE FLAT CABLE RV206 SUB BRIGHT WIDE RV204 SUB BRIGHT BRIGHT RV205 D201 D202 TALLY 9 5V Q201 d b a 5 5 5 4 5 3 5 2 5 1 GND H DEF H DEF V DEF V DEF V DY H DY 6 1 6 3 6 2 6 8 6 6 6 7 21 7 21 6 21 8 21 2 21 3 21 1 D5 REC B SHUTTER D4 GAIN UP D6 TALLY REC D2 TALLY GREEN D3 BATT D1 LE 326 REC B SHUTTER GAIN UP REC T TALLY GREEN BATT ARARM 9 5V c 9 5V 2 3 1 TAL...

Page 26: ......

Page 27: ...7u 25V B R116 100k D D D R123 1K R122 1K RV101 5KB RV102 5KB Q102A IMT1A Q102B IMT1A RV3 H SHIFT N RV4 H SHIFT P 1608 1608 1 2 3 1 2 3 1 2 3 4 5 6 C124 82u 6 3V OS 5V 9 5V Vin 1 GND 2 5V 3 IC103 TA48L05F R151 330 R150 470k R148 1M R147 10k R149 10k R158 D C126 2200p 50V CH R157 220 C134 22p 50V CH RC 2 C 1 A 4 B 5 CLR 3 Q 6 Q 7 VCC 16 GND 8 IC107A TC74HC4538AFT C133 0 1u 25V B C132 3300p 25V CH V ...

Page 28: ...25V B 50V B 50V B RV204 100kB R201 10k R223 6 8k RV205 BRIGHTNESS Q206 K880 1 2 3 4 6 5 1 3 2 4 5 6 S C201 10u 20V OS Q201 C4081 RV203 200B RV203 SUB CONTRAST R237 220 3 1 2 RV205 10kB D202 CL 201HR C D201 CL 201HR C RV201 CONTRAST RV202 PEAKING RV206 SUB BRIGHT WIDE 50V 9 5V GND VIDEO GND G1 BRIGHT CTL INV C BLK 16 9 C SYNC TALLY OUT NC TALLY IN PEAK CTL 1 2 3 4 5 6 7 8 9 10 11 12 13 14 CN201 SFR...

Page 29: ...3 3k IC4 uPC358G2 R52 22k R53 22k IC5 TC4S69F C21 220p C22 0 01u IC6 TC4S69F C23 47p R55 100k R56 5 6k D4 1SS302 Q6 K1254 R57 4 7k R58 10k R59 1M RV3 10kB D5 DAN202U C24 0 1u IC4 2 2 C25 0 1u C26 0 1u 50V B R61 1k D Q7 K1254 C27 2400P 100V P P C C28 10000p L2 LCU6 01F FBT TC38 29F D6 RLS245 D7 RLS245 D11 ESJA57 04A R62 100 R64 3 3M R66 3 3M R65 3 3M R63 68 R68 220 D8 DAN202U C32 470p RV4 100B D10 ...

Page 30: ......

Page 31: ...6 1 DXF 20W 6 1 DF 70 VA 229 DF 70 VA 229 Section 6 Board Layouts VA 229 SUFFIX 11 DF 70 SUFFIX 11 ...

Page 32: ...6 2 DXF 20W 6 2 VF 88 VF 88 VF 88 SUFFIX 11 VF 88 SUFFIX 11 ...

Page 33: ......

Page 34: ...Printed in Japan Sony Corporation 2006 5 08 2006 DXF 20W SY J E 9 968 256 01 ...

Page 35: ...PRING LEAF 2 23 3 697 156 01 o CUSHION DROP PROTECTION 2 24 3 991 416 01 s LABEL VF 25 3 697 160 01 o LABEL VF C 26 3 991 434 01 s LID COVER 27 3 710 008 02 s HOUSING STOPPER 28 3 719 381 02 s SCREW P M2X4 ZNBK LOCK 29 3 854 132 01 s GEL MIC 30 9 885 083 47 s SCREW 31 9 885 107 24 s CABLE FLAT 32 9 885 107 22 s CRT DY CONNECTOR ASSY 33 9 885 107 95 s MOUNTED CIRCUIT BOARD DF 70 34 3 609 583 02 s S...

Page 36: ...OMPRESSION 109 110 3 623 709 01 o MC HOLDER 111 3 623 710 01 s MC GLASS 112 3 682 494 02 o EYE CUP S 113 3 692 136 03 s FIXED RING 114 3 692 139 01 s MIRROR 2 115 3 697 151 01 s RING VF 116 3 697 154 01 s HOLDER MIRROR 3 117 3 991 417 01 s PLATE A DISPLAY No Part No SP Description 118 3 697 167 04 s VF TUBE 4 119 3 722 485 01 o ROLLER SLIDE 120 3 723 073 01 s CUSHION MIRROR 121 3 726 904 01 s RING...

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