Sony RMT-V197, Service Manual

Page 1: ...25EG E475EG E570EE E570EG E720EE E720EG French Model SLV E715B E720B E720BZ Irish Model SLV E720EX North European Model SLV E720NC E725NC Spanish Model SLV E720NP UK Model SLV E720UX Germany Model SLV E717VC E720VC Austrian Model Germany Model SLV E720VP SERVICE MANUAL VIDEO CASSETTE RECORDER MICROFILM j H MECHANISM Refer to the SERVICE MANUAL of VHS MECHANICAL ADJUSTMENTS for MECHANICAL ADJUSTMEN...

Page 2: ...Look for parts which through functioning show obvious signs of deterioration Point them out to the customer and recommend their replace ment 5 Check the B voltage to see it is at the values specified 6 Flexible Circuit Board Repairing Keep the temperature of the soldering iron around 270 C during repairing Do not touch the soldering iron on the same conductor of the circuit board within 3 times Be...

Page 3: ... PRINTED WIRING BOARD 4 10 MA 286 VIDEO AUDIO SCHEMATIC DIAGRAM 4 13 MA 286 SERVO SYSTEM CONTROL SCHEMATIC DIAGRAM 4 16 MA 286 OSD SCHEMATIC DIAGRAM 4 19 MA 286 TUNER SCHEMATIC DIAGRAM 4 21 MA 286 I O SCHEMATIC DIAGRAM 4 23 DM 62 OPERATION SWITCHES FR 119 MODE CONTROL PRINTED WIRING BOARDS 4 25 DM 62 OPERATION SWITCHES FR 119 MODE CONTROL SCHEMATIC DIAGRAMS 4 27 PS 385 POWER SUPPLY PRINTED WIRING ...

Page 4: ...ction of A with hand Fig 2 Flywheel 1 Timing belt Front side 3 HOW TO REMOVE A CASSETTE FROM A MACHINE IF A CASSETTE IS LEFT IN A MACHINE IN TROUBLE Execute the section 2 and keep rotating the flywheel 1 When executing section 1 to 3 take care that a tape slack should not be caught by a mechanism or a tape should not be damaged 4 HOW TO REMOVE DRUM ASSEMBLY Fig 3 1 Worm gear 1 Front side of the ma...

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Page 19: ...C E720VP E725NC 2 1 CASE AND FRONT ASSEMBLY 2 2 FR 119 BOARD WITH DM 62 BOARD Front Panel assembly 1Tapping screws 3Claws 5 3Claws Case 2 1Tapping screws 4Flexible flat cable from CN441 on DM 62 board E570 only 3Screws 4Claws 4Claws 2Flexible flat cable from CN163 on MA 286 board 1Connector from CN161 on MA 286 board Be careful not to damage the connector FR 119 board with DM 62 board DM 62 board ...

Page 20: ...DECK ASSEMBLY H MECHANISM 2Connector from FE head 3Screws RP 217 board 4 3Screw 2Connector from ACE assembly 1Flexible board from the drum 1Connector from CN101 on MA 286 board Mechanism deck assembly H Mechanism 2Screw 2Screw 2Screws 3 ...

Page 21: ...TION 2Slide this claw out from chassis Terminal fixing plate 3Screws 3Screws MA 286 board 3Screw 1Screw 3Screw 3Screw 4 PS 385 board FR 119 MODE CONTROL RP 217 HEAD AMP PS 385 POWER SUPPLY DM 62 OPERATION SWITCHES MA 286 VIDEO AUDIO SERVO SYSTEM CONTROL TUNER ...

Page 22: ...20EE 10 A 6791 195 A FR 119 BOARD COMPLETE 720EX 10 A 6791 197 A FR 119 BOARD COMPLETE 720NP 10 A 6791 199 A FR 119 BOARD COMPLETE 720NC 725 10 A 6791 202 A FR 119 BOARD COMPLETE 570EG 10 A 6791 205 A FR 119 BOARD COMPLETE 570EE 10 A 6791 208 A FR 119 BOARD COMPLETE 720EG R e f N o P a r tN o D e s c r i p t i o n Remarks R e f N o P a r tN o D e s c r i p t i o n Remarks 10 A 6791 209 A FR 119 BO...

Page 23: ...A MA 286 BOARD COMPLETE 720BZ 5 5 A 6791 207 A MA 286 BOARD COMPLETE 720EG 5 5 A 6791 211 A MA 286 BOARD COMPLETE 325 5 5 A 6791 214 A MA 286 BOARD COMPLETE 475 56 A 6791 187 A RP 217 BOARD COMPLETE EXCEPT 325 475 570 56 A 6791 201 A RP 217 BOARD COMPLETE 570 56 A 6791 212 A RP 217 BOARD COMPLETE 325 56 A 6791 215 A RP 217 BOARD COMPLETE 475 5 7 3 960 274 01 SPACER LED 5 8 3 960 273 01 SPACER TOP ...

Page 24: ... TENSION 172 3 958 151 01 GEAR ELEVATOR 173 3 958 454 01 OPNER LID 174 3 958 501 01 SCREW ACE ADJUSTMENT 175 3 958 153 01 GEAR PRESS 176 3 958 462 01 SPRING RVS BRAKE TENSION 177 X 3943 885 1 ARM ASSY RVS BRAKE 178 X 3943 882 1 BRAKE T ASSY SOFT 151 A 6759 603 A FL BLOCK ASSY 152 3 958 467 01 SPRING TENSION COIL 153 3 970 471 01 SPRING TORSION 154 3 958 488 03 PLATE LIGHT GUIDE END SENSOR 155 3 97...

Page 25: ...PPER 206 3 958 450 01 BRAKE S SOFT 207 3 958 390 01 SHAFT PC BOARD 208 3 958 391 01 PLATE LIGHT GUIDE LED 209 3 961 441 01 SCREW 3x8 210 X 3945 443 1 BRAKE S ASSY MAIN 211 3 958 517 01 SPRING TENSIONCOIL 212 X 3945 444 1 ARM T ASSY MAIN BRAKE 214 X 3947 255 1 ROLLER ASSY HC 215 3 975 724 01 ARM HC 216 3 960 139 01 ARM NEUTRALITY 217 3 958 535 01 SPRING TENSION 218 3 960 138 01 ARM PENDULUM COMPULS...

Page 26: ... 07 GEAR CAM Ref No Part No Description Remarks Ref No Part No Description Remarks 262 3 958 156 03 GEAR FL DRIVING 263 3 958 445 01 SPRING TORSIONCOIL CAP BRAKE 264 X 3943 888 1 BRAKE ASSY CAP 265 X 3943 889 1 ARM ASSY TENSION VEHICLE 266 3 958 361 01 BELT TIMING 267 3 958 448 01 WHEEL TENSION 268 3 959 763 01 RETAINER 269 3 958 163 04 SLIDER MAIN 270 3 958 162 02 GEAR UPPER LOWER COMMUNICATION M...

Page 27: ...F T LOADING 313 3 960 687 01 SPRING LEAF S LOADING 314 X 3945 485 4 CHASSIS ASSY MECHANICAL 315 3 669 595 00 WASHER 2 STOPPER 316 3 962 960 01 GEAR T K IDLER 317 3 962 959 01 GEAR S K IDLER 318 3 958 533 01 CLAW S WINDING 319 3 958 532 01 ARM S WINDING 320 3 958 534 01 SPRING TORSION 321 3 966 092 01 RING RETAINING SLIT WASHER 322 X 3943 886 1 TG1 ASSY 323 3 958 492 01 SPRING TG1 TENSION COIL 324 ...

Page 28: ...IL STOP EXCEPT 570 S450 1 571 977 11 SWITCH TACTIL PLAY EXCEPT 570 A 6791 182 A FR 119 BOARD COMPLETE 720VP A 6791 184 A FR 119 BOARD COMPLETE 720UX A 6791 188 A FR 119 BOARD COMPLETE 717VC 720VC A 6791 191 A FR 119 BOARD COMPLETE 715B 720B A 6791 193 A FR 119 BOARD COMPLETE 720EE A 6791 195 A FR 119 BOARD COMPLETE 720EX A 6791 197 A FR 119 BOARD COMPLETE 720NP A 6791 199 A FR 119 BOARD COMPLETE 7...

Page 29: ...HIP 150 5 1 10W R410 1 216 295 91 CONDUCTOR CHIP 2012 570 R411 1 216 069 00 METAL CHIP 6 8K 5 1 10W R412 1 216 075 00 METAL CHIP 12K 5 1 10W R413 1 216 075 00 METAL CHIP 12K 5 1 10W R414 1 216 057 00 METAL CHIP 2 2K 5 1 10W R415 1 216 057 00 METAL CHIP 2 2K 5 1 10W R416 1 216 061 00 METAL CHIP 3 3K 5 1 10W R418 1 216 073 00 METAL CHIP 10K 5 1 10W R419 1 216 073 00 METAL CHIP 10K 5 1 10W R420 1 216...

Page 30: ...XCEPT 325 475 720EE 720EG C222 1 163 038 91 CERAMIC CHIP 0 1uF 25V EXCEPT 325 475 720EE 720EG C223 1 126 154 11 ELECT 47uF 20 6 3V C224 1 162 306 11 CERAMIC 0 01uF 30 16V C225 1 163 235 11 CERAMIC CHIP 22PF 5 50V C226 1 163 038 91 CERAMIC CHIP 0 1uF 25V C228 1 126 157 11 ELECT 10uF 20 16V C229 1 162 306 11 CERAMIC 0 01uF 30 16V C230 1 124 584 00 ELECT 100uF 20 10V C231 1 126 157 11 ELECT 10uF 20 1...

Page 31: ...C CHIP 22PF 5 50V C510 1 163 231 11 CERAMIC CHIP 15PF 5 50V C511 1 163 031 11 CERAMIC CHIP 0 01uF 50V C512 1 124 584 00 ELECT 100uF 20 10V C513 1 163 234 11 CERAMIC CHIP 20PF 5 50V C514 1 163 234 11 CERAMIC CHIP 20PF 5 50V C518 1 124 465 00 ELECT 0 47uF 20 50V C519 1 164 489 11 CERAMIC CHIP 0 22uF 10 16V C520 1 163 038 91 CERAMIC CHIP 0 1uF 25V 325 475 570 715B 720B 720BZ 720EE 720EG C540 1 163 03...

Page 32: ...109 97 DIODE RD6 8ES B2 D542 8 719 109 97 DIODE RD6 8ES B2 715B 717VC 720 725 D543 8 719 109 97 DIODE RD6 8ES B2 D544 8 719 109 97 DIODE RD6 8ES B2 715B 717VC 720 725 D545 8 719 109 97 DIODE RD6 8ES B2 D546 8 719 109 97 DIODE RD6 8ES B2 715B 717VC 720 725 D547 8 719 109 97 DIODE RD6 8ES B2 715B 717VC 720 725 D548 8 719 109 97 DIODE RD6 8ES B2 D549 8 719 109 97 DIODE RD6 8ES B2 D551 8 719 109 97 DI...

Page 33: ...1 216 295 91 CONDUCTOR CHIP 2012 JR030 1 216 296 91 CONDUCTOR CHIP 3216 JR031 1 216 296 91 CONDUCTOR CHIP 3216 JR032 1 216 295 91 CONDUCTOR CHIP 2012 JR033 1 216 296 91 CONDUCTOR CHIP 3216 JR034 1 216 295 91 CONDUCTOR CHIP 2012 JR035 1 216 296 91 CONDUCTOR CHIP 3216 JR036 1 216 295 91 CONDUCTOR CHIP 2012 JR037 1 216 296 91 CONDUCTOR CHIP 3216 JR038 1 216 296 91 CONDUCTOR CHIP 3216 JR039 1 216 296 ...

Page 34: ...YG Q202 8 729 230 49 TRANSISTOR 2SC2712 YG Q203 8 729 421 19 TRANSISTOR UN2213 EXCEPT 325 Q205 8 729 421 19 TRANSISTOR UN2213 715B 720B 720BZ Q208 8 729 422 27 TRANSISTOR 2SD601A Q Q209 8 729 216 22 TRANSISTOR 2SA1162 G Q210 8 729 422 27 TRANSISTOR 2SD601A Q Q211 8 729 422 27 TRANSISTOR 2SD601A Q Q291 8 729 421 19 TRANSISTOR UN2213 715B 720B 720BZ Q292 8 729 901 06 TRANSISTOR DTA144EK 715B 720B 72...

Page 35: ...95 91 CONDUCTOR CHIP 2012 R218 1 216 065 00 METAL CHIP 4 7K 5 1 10W R219 1 216 053 00 METAL CHIP 1 5K 5 1 10W R220 1 216 039 00 METAL CHIP 390 5 1 10W 325 R222 1 216 051 00 METAL CHIP 1 2K 5 1 10W R223 1 249 401 11 CARBON 47 5 1 4W F R224 1 249 401 11 CARBON 47 5 1 4W F EXCEPT 325 475 720EE 720EG R225 1 216 017 91 METAL GLAZE 47 5 1 10W R228 1 216 057 00 METAL CHIP 2 2K 5 1 10W R229 1 216 055 00 M...

Page 36: ...R CHIP 2012 325 475 570EE 720EE 720EG 720EX 720NC 720UX 720VP 725NC R517 1 247 863 91 CARBON 22K 5 1 4W R518 1 216 097 91 METAL GLAZE 100K 5 1 10W R520 1 216 049 91 METAL GLAZE 1K 5 1 10W 325 475 570 715B 720B 720BZ 720EE 720EG R521 1 216 025 91 METAL GLAZE 100 5 1 10W 325 475 570 715B 720B 720BZ 720EE 720EG R522 1 216 049 91 METAL GLAZE 1K 5 1 10W 325 475 570 715B 720B 720BZ 720EE 720EG R540 1 24...

Page 37: ...IP 470 5 1 10W 715B 717VC 720B 720BZ 720NP 720VC R949 1 216 073 00 METAL CHIP 10K 5 1 10W 715B 717VC 720B 720BZ 720NP 720VC R950 1 216 073 00 METAL CHIP 10K 5 1 10W 570EG 715B 717VC 720B 720BZ 720NP 720VC R951 1 216 295 91 CONDUCTOR CHIP 2012 EXCEPT 325 475 570EE 720EE 720EG MODULATOR RFU700 1 475 058 11 MODULATOR RF RFU 2110 715B 720B 720BZ RFU700 1 475 059 11 MODULATOR RF RFU 2101 717VC 720EG 72...

Page 38: ...PS602 1 533 593 11 LINK IC 2A PS603 1 532 841 21 LINK IC 1 6A TRANSISTOR Q600 8 729 024 00 TRANSISTOR 2SC3377 T93Q Q601 8 729 032 85 TRANSISTOR 2SC4231LM Q602 8 729 140 93 TRANSISTOR 2SB733 34 Q603 8 729 421 22 TRANSISTOR UN2211 Q604 8 729 018 99 TRANSISTOR 2SD2394 F Q605 8 729 119 77 TRANSISTOR 2SA1175 FEK Q607 8 729 140 96 TRANSISTOR KSC1008 Q608 8 729 901 06 TRANSISTOR DTA144EK Q610 8 729 140 9...

Page 39: ... EXCEPT 325 C280 1 124 584 00 ELECT 100uF 20 10V C282 1 164 232 11 CERAMIC CHIP 0 01uF 50V C283 1 163 038 91 CERAMIC CHIP 0 1uF 25V C284 1 163 038 91 CERAMIC CHIP 0 1uF 25V C286 1 124 584 00 ELECT 100uF 20 10V C287 1 163 239 11 CERAMIC CHIP 33PF 5 50V C288 1 163 239 11 CERAMIC CHIP 33PF 5 50V C289 1 163 038 91 CERAMIC CHIP 0 1uF 25V C290 1 164 346 11 CERAMIC CHIP 1uF 16V C321 1 126 967 11 ELECT 47...

Page 40: ...P 2012 R264 1 216 295 91 CONDUCTOR CHIP 2012 R265 1 216 295 91 CONDUCTOR CHIP 2012 EXCEPT 325 R266 1 216 053 00 METAL CHIP 1 5K 5 1 10W 325 R266 1 216 055 00 METAL CHIP 1 8K 5 1 10W EXCEPT 325 R267 1 216 071 00 METAL CHIP 8 2K 5 1 10W EXCEPT 325 R267 1 216 073 00 METAL CHIP 10K 5 1 10W 325 R268 1 216 081 00 METAL CHIP 22K 5 1 10W R269 1 216 059 00 METAL CHIP 2 7K 5 1 10W EXCEPT 325 R269 1 216 061 ...

Page 41: ...ION DANISH 720NC 725NC 3 858 883 11 MANUAL INSTRUCTION ENGLISH 720EG 3 858 883 21 MANUAL INSTRUCTION CZECH 720EG 3 858 883 31 MANUAL INSTRUCTION POLISH 720EG 3 858 883 41 MANUAL INSTRUCTION HUNGARIAN 720EG 3 858 883 51 MANUAL INSTRUCTION ENGLISH 720EE 3 858 883 61 MANUAL INSTRUCTION RUSSIAN 720EE 3 858 884 11 MANUAL INSTRUCTION ENGLISH 570EG 3 858 884 21 MANUAL INSTRUCTION CZECH 570EG 3 858 884 31...

Page 42: ...160 MA 286 IC160 8 MA 286 IC160 I O O O O D O O O I I I I O O O O I O I STOP 1 L L L L H 1 1 H L 8 10 L H Hi Z Hi Z FF 1 Hi Z O D L L L 8 1 7 6 8 10 L H Hi Z Hi Z REW 1 Hi Z O D L L L 8 1 7 6 8 10 L H Hi Z Hi Z TAPE THREADING 1 Hi Z O D L L L 5 5 5 8 10 L H Hi Z Hi Z TAPE UNTHREADING 1 Hi Z O D L L L 5 5 5 8 10 L H Hi Z Hi Z PB 1 Hi Z O D L L L 1 1 7 8 9 10 L H Hi Z Hi Z PB PAUSE 1 L L L L H L 1 7...

Page 43: ...IC160 MA 286 IC160 MA 286 IC160 I O I O I O I I I I I I I O O D O O D O O D O O I I EJECTED Hi Z Hi Z H L L L L H L H L 4 8 L H 4 4 CASSETTE LOADING H H L L L H 2 H L H L 4 8 L 4 4 CASSETTE UNLOADING L H L L L H 2 H L H L 4 8 L 4 4 TAPE THREADING H Hi Z 1 1 1 1 2 H L 3 4 8 H L 7 7 TAPE UNTHREADING L Hi Z 1 1 1 1 2 H L 3 4 8 H H 7 7 STOP Hi Z Hi Z H L H H 2 H L H L 4 8 L H L 7 7 FF Hi Z Hi Z H L H ...

Page 44: ...tem clock 16MHz Servo system control microcomputer chip select signal Serial communication signal Serial communication signal Serial communication signal Not used Not used Not used Pin No 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 Pin Name SW2 AVSS AVREF AVDD NTPB SW AV ADJ N C N C AF ENV RF...

Page 45: ... 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 Pin Name PDC DAV DMS1 DMS2 SIRCS IN N C N C BUZZER POWER SAVE LED CS SCLK SI SO H DET LANC IN LANC OUT A D0 A D1 A D2 A D3 A D4 A D5 A D6 AFT AVDD AV REF SCL CG CS SDA CME CS AVSS EXTAL XTAL VSS RST PLL CLK PLL DATA PLL ENABLE N C C DET N C N C POWER FAIL VFDP SEG16 SEG15 SEG14 SEG13 SEG12 SEG11 SEG10 I O I I I I O I O O I O O I O I I I ...

Page 46: ...uments as shown in the following diagram Fig 7 2 1 2 1 3 Input Signal Check Video signal produced by a pattern generator is used as an adjustment signal to perform electrical alignment for this unit This video signal must satisfy the specification Unless otherwise specified place the switches and controls of this unit in the following positions CHANNEL switch LINE 1 Connect an oscilloscope to theV...

Page 47: ...Bs at load impedance 47 kilohms Output impedance less than 10 kilohms 2 1 6 Adjustment Sequence The adjustments should be performed in the following sequence 2 2 POWER SUPPLY CHECK 2 2 1 Output Voltage Check MA 286 Board Mode E E Measuring Instrument Digital voltmeter SW 12V Check Measurement point IC930 pin 2 Specified value 12 0 0 3V MTR12V Check Measurement point CN600 Pin Specified value 12 4 ...

Page 48: ... SYSTEM CHECKS AND ADJUSTMENT For the video system checks follow the checking procedures given below as a rule The color bar video signal supplied from the pattern generator is used as the video input signal for the video system adjustment of the recording mode Check that the signal satisfies the specified value designated in the Check of input signal Fig 7 2 2 Unless otherwise specified set the s...

Page 49: ...ND Check Method 1 Check that the white clip level is 190 15 to the white 100 level 2 Check that the dark chip level is 52 5 5 to the white 100 level Fig 7 2 6 2 4 4 Recording Y Level Check MA 286 Board Mode E E Signal No signal Measurement point IC201 pin Measuring instrument Oscilloscope Specified value A 250 50mVp p Check Method 1 Check that the recording RF signal satisfies the specified value ...

Page 50: ...ACE Head Adjustment Refer to the VHS mechanical adjustment manual 9 973 623 11 2 5 2 E E Output Level Check Mode E E Signal 400Hz 7 5dBs IC540 pin 5 2 Measurement point CJ540 L R Measuring instrument Audio level meter Specified value 7 5 2dBs R ch Check Method 1 Input signal of 400Hz and 7 5dBs to the CN540 pin 5 2 2 Check that the audio output level is 7 5 3dBs 2 5 3 Overall Output Level and Dist...

Page 51: ... 6E CN261 5 1 RF Switching Position AUDIO LINE OUT EURO AV LINE IN OUT 1 EURO AV LINE IN OUT 1 CJ540 21 1 CN540 CN930 21 1 PB LEVEL 24 1 25 40 41 64 65 80 IC201 Xtal OSC SYNC AEC WHITE CLIP DARK CLIP REC Y LEVEL REC C LEVEL CN600 19 18 1 2 SW 5V MTR 12V 30 16 1 15 IC500 IC930 SW 12V VOC frequency ...

Page 52: ...B E717VC E720B E720BZ E720EE E720EG E720EX E720NC E720NP E720UX E720VC E720VP E725NC 96 Sony Corporation Home A V Products Company 9 921 624 11 97B1661 1 Printed in Japan 1997 2 Published by Service and Safety Engineering Dept Osaki East ...