SERVICE MANUAL US Model
Contents
1. Note parts extracted from the component side e i indicates side identified with part number 1 641 682 1 647 684 CRT GROUND PLATE FD 525 4 4 SCHEMATIC DIAGRAM Refer to page 18 for IC Block Diagrams 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 e Waveforms LII 6 ue EI AM MW ANT FERRITE ROD ANTENNA CN80 4 e e E an 2 tv bvi 1201 e mm 0 IC 101 a ELECTRONIC TUNING 0 3 0 3 10 Cx 20111 13 13 0 10 10 14 12 1 3 02 4 37 9 4 9401 COLLECTOR ic201 7 Dore Nr 17 0 4 waol H du 6 0 IC103 D 87 pPCT8LOS mex 1 5V REG e 55 13 5 icem 53 40964 5 53 09 541 14 AUDIO 0 2 G0 9 6 6 5 G 195p 60vp p FE avs 560 5601 POMER t ANTI OFF gt ON IMS ES d z 5c L 2 lt 0 50 CABG IC 201 T801 ANTENNA we sx 1090 162. FM OSC 4 7 685 646 79 SCREW P 3X8 NON SLIT 2 2 1426 074 00 FM RF A 5 7 685 647 79 SCREW TAPPING M3X10 13 1422 131 400 COIL FM OSCILLATION L4 1406 087 1 OSC AM 7 685 105 11 SCREW PTP 2X8 lt RESISTOR gt R1 1 249 429 11 CARBON 10K 5 1 40 R2 1 249 421 11 CARBON 2 2K 5 1 49 R3 1 249 405 11 CARBON 100 5 1 4 M 1 249 423 11 CARBON 3 3K 5 1 R7 1 249 409 11 CARBON 220 5 1 48 RB 1 249 417 11 CARBON 5 lt SWITCH gt 51 1 554 061 00 SWITCH SLIDE MODE lt ENCAPSULATED COMPONENT gt Ti 1 236 385 11 ENCAPSULATED COMPONENT JEEPS a aI OOO III IIR AIR MISCELLANEOUS 68 1 546 075 11 CATHODE RAY TUBE B W E2282 ABI 1 451 365 21 DEFLECTION YOKE 1 501 596 11 ANTENNA TELESCOPIC BLACK BLACK 1 501 596 21 ANTENNA TELESCOPIC WHITE WHITE SP1 1 504 247 11 SPEAKER 5M FEO ACCESSORIES amp PACKING MATERIALS JOO OTA A 1 467 048 11 ADAPTOR AC 525 3 756 602 21 MANUAL INSTRUCTION ENGLISH 4 039 803 01 CUSHION 1 4 039 804 01 CUSHION i 4 039 805 01 INDIVIDUAL CARTON The components identified by mark A or dotted line with mark are critical for safety Replace only with part number specified FD 525 English Sony Corporation Pied Japin 9 957 689 1 General Audio Group Q 1993 3 26 Published by Audio Corporate Planning Gro
3. 1 VIEW 3 2 Eat CX20111 T6 DTC114YS a 5 2 2785 GP10G5020 RL202 M11 10E2 a TOP VIEW t L5630 M _ DTC144ES ANODE letter ride RD6 2ES B2 RD7 5ES B2 4 156119 155168 athode cathode anode NJM3404AD 25 952 2SA1175 FEK 25 2001 1 2 25 2909 anode 12 34 cathode Top view Ec B anode o 4 2 BLOCK DIAGRAM ANTI TELESCOPIC ANTENNA J151 sop J601 DC IN 12V DRY BATTERY SIZE C Mn Jam R20 8pcs 12V FD 525 1 ac 5 FERRITE ROD n ANTENNA 45 9 RN s SPI SPEAKER TU151 IN VHF UHF TUNER UNIT IFO Eee EE BH BL viv SELECT 0151 152 8 5V VHF 5151 t B 30V UHF B 8 8V ELECTRICAL By OST O 0 REC 102 DISP DISP DISP DISP CALL Bt 5V RVv10t RV102 10 104 F601 2 125 5 8 8 B 8 8V REG B 5V 1C103 RV601 11 12 FD 525 e Semiconductor Location 4 3 PRINTED WIRING BOARDS Refer to page 10 for Semiconductor Lead Layouts Bh cmo 3 a M ANTI AX X X SIZE C FM TV 34 5 6 DESIGNATION R20 J51 EXT ANT TRESCOFIC oco s JEE RV552 a A BOARD ws amp
4. 1 4 R569 1 249 441 11 CARBON 100K 5 1 R210 1 249 420 11 CARBON 1 8K 5 1 570 1 249 389 11 CARBON 47 5 1 49 R211 1 949 409 11 CARBON 220 5 1 48 R601 1 249 416 11 CARBON 820 5 YAN R212 1949 440 1 CARBON 82K 59 1 R602 1 249 416 11 CARBON 820 5 1 48 R213 1 249 415 11 CARBON 680 5 1 48 R603 1 249 416 11 CARBON 880 5 1 4 14 1 249 491 11 CARBON 2 2K 5 1 4 R604 1 249 416 11 CARBON 820 5 1 48 R216 1 249 499 11 CARBON 10K 5 1 48 R605 1 249 411 11 CARBON 330 5 1 46 R217 1 249 393 11 CARBON 10 5 1 48 R606 1 249 405 11 CARBON 100 59 14 218 1 249 493 11 CARBON 3 3K 5 1 4 NR607 1 249 493 11 CARBON 3 3K 5 1 48 R219 1 249 440 11 CARBON 82K 5 1 4 A RG608 1 249 419 11 CARBON 1 5K 5 1 4 R220 1 249 440 11 CARBON 82K 5 1 4W R801 1 249 417 11 CARBON 1K 5 1 48 221 1 249 499 11 CARBON 10K 5 1 4 8802 1 249 405 11 CARBON 100 5 1 8 The components identified by mark A or dotted line with mark are critical for safety Replace only with part number specified Ref No Part No Remark R803 1 249 405 11 CARBON R804 1 249 429 11 CARBON R805 1 247 897 11 CARBON R806 1 247 897 11 CARBON R807 1 249 433 11 CARBON Description 100 5 1 4 10K 5 1 8 560K 5 1 4 560K 5 1 22K 5 1 4 334957 1 N 22M5 1 4 2 2 596 1 6W 270K 5 1 49 39K 5 1 48 R808 1 259 882 11 CARBON R809 1 259 88611 CARBON R810 1 249 385 11 CARBON R811 1 247 889 00 CARBON R812 1 249 436 11 CARBO
5. When to replace batteries When the picture becomes small replace all the batteries wim new ones Battery life Sony alkaline 1 Note When me unitis not to beused fora long period of time remove the batteries to avoid unit damage caused by battery leakage and corrosion Watching the HCALL button 1 Press the POWER switch 2 Se the MODE selector to TV The unit starts tunina automatically MODE 3 Pull out the antenna fully 4 Select the band VHF or UHF gt evHF 1 gt gt gt Bj Tune in the desired channel CHANNEL v 6 Adiust the antenna length and its direction To turn off the TV Press me PoweR switch and fold the antenna T Adiust the volume Wf the channel changes If the power is momentarily lost because of a mechanical shock or ifthe unit has passed through a tunnel the channel may change If this happens tune in the desired channel again with CHANNEL To indicate the current channel Press the CH CALL button The line appears et the position of the current channel To Listen Using the Earphone to EAR Earphone not supplied For your safety do not waich the N nor operate the controls while driving Note Be sure to turn off me N after use especially when listening with earphone This prevents unnecessary batter wear Picture Adjustment V HOLD V HOLD control T
6. C457 2 2 pa A 157 L451 p BUM a ic201 05 ictor 6 o 4151 VHF UHF TUNER UNIT TU151 IN BU VT BH BL SPI SPEAKER P 4 2 c2e8 Ko QP 409 428 241 0401 Note All capacitors are in unless otherwise noted pF 50WV less not indicated except for electrolytics and tantalums All resistors are in 2 and W or less unless otherwise specified internal component line with mark are critical for safety Replace only with part number specified Note The vith mark erii by mark or dotted Q60 8 8V REG adjustment for repair Power voltage is dc 12V and fed with regulated dc power supply from external power voltage jack Voltage and waveforms are dc with respect to ground under no signal detuned conditions no mark FM AM VHF 1 UHF Voltages are taken with a VOM Input impedance 10M Q Voltage variations may be noted due to normal produc tion tolerances e Waveforms are taken with a oscilloscope Voltage variations may be noted due to normal produc tion tolerances Circled numbers refer to waveforms Signal path C FM TV SOUND v2 TV PICTURE ORY BAT
7. 0 525 SERVICE MANUAL US Model MEGA watchman SPECIFICATIONS FEATURES TV standard American TV standard 45inch black and white 90 deflection picture tube Channel coverage VHF channels 2 13 The voltage synthesizer tuning system allows easy tuning UHF channels 14 69 AM FM tuner is combined Radio frequency range Built in 2 inch dia speaker with powerful output and good 8761 08 MHz sound suitable for garden and kitchen use AM 5304 710 kHz 9 Carrying handle for easy carrying Antenna VHF UHF FM telescopic antenna ying y ying AM Built in ferrite bar antenna Picture tube 4 5 inch picture measured diagonally Input EXT ANT minijack 75 ohms output EAR minijack impedance 8 300 ohms Speaker Full range 05 cm 02 inches Power requirements 12 V DC Battery life See page 4 for Power sources Power consumption 10 8 W Dimensions Approx 176 2 x 177x 175 5 mm w h d 7 x 7 x 7 inches incl projecting pans and controls Mass Approx 2 8 kg 6 Ib 3 oz incl batteries Supplied accessory power adaptor 1 Design and specifications subject to change without SAFETY RELATED COMPONENT WARNING notice COMPONENTS IDENTIFIED BY MARK OR DOTTED Note LINE WITH MARK ON THE SCHEMATIC DIAGRAMS Use only recommended AC power adaptor Do not use AND IN THE PARTS LIST ARE CRITICAL TO SAFE any other power adaptor OPERATION REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS APPEAR AS SH
8. ANTENNA wre ho Hn Re 4 039 683 01 NET SPEAKER 4 039 699 01 BRACKET SPEAKER 3 840 975 00 CLAW SPEAKER 4 040 195 01 TERMINAL BOARD 4 040 194 01 TERMINAL BOARD 3 Parts Color Cabinet s Color Ref No XX and X mean standardized parts so they may have some difference from the original one Items marked are not stocked since Color Indication of Appearance Parts Example KNOB BALANCE WHITE RED 1 Hardware f mark list is given in the last of this parts list The components identified by mark A or dotted line with mark are critical for safety 1 Replace only with part number specified Part No Description 10 1 12 12 13 14 ANTI ANTI SP1 3 345 508 01 TERMINAL BOARD A BATTERY 4 039 685 01 TERMINAL BOARD B BATTERY 4 039 684 01 TERMINAL BOARD A BATTERY 4 039 697 01 LID BATTERY CASE BLACK BLACK 4 039 697 11 LID BATTERY CASE WHITE WHITE 3 831 441 11 CUSHION B 9 911 845 SPACER 1 501 596 11 ANTENNA TELESCOPIC BLACK BLACK 1 501 596 21 ANTENNA TELESCOPIC WHITE WHITE 1 504 247 11 SPEAKER 5CM Ref No 91 51 52 52 53 93 54 54 55 56 56 97 97 5 2 FRONT CABINET SECTION Remark Part No Description 4 039 696 01 FILTER BLACK BLACK 4 039 696 11 FILTER WHITE WHITE 4 039 692 01 PLATE INDICATION CH BLACK BLACK 4 039 692 1
9. 507 1 136 157 00 MYLAR 0 022uF 5 154 1 101 005 00 CERAMIC 22000PF 508 1 130 479 00 MYLAR 0 0047uF 54 ov 58 112444300 ELECT 100uF 2 10V 0509 1 126 176 11 ELECT 220uF 20 107 C159 1 102 074 00 CERAMIC OOluF 10 C551 1 131 347 00 TANTALUM 35 Cl60 1 102 074 00 CERAMIC OOluF 10 C201 1 101 004 00 CERAMIC 01uF C552 1 323 382 00 ELECT 3 20 1007 C553 1 131 347 00 TANTALUM 1uF amp 35v 202 1 101 004 00 CERAMIC 01uF C554 1 181 347 00 TANTALUM 35 203 1 101 004 00 CERAMIC 555 1 102 074 00 CERAMIC 0 OOluF 205 1 124 1641 ELECT 22uF 2 63V C556 1 124 126 00 ELECT 20 10 C206 1 194 902 00 ELECT 0 47uF 20 207 1 101 004 00 CERAMIC 01 557 1 124 473 11 ELECT 1000uF 20 10V C558 1 124 360 00 ELECT 1000uF 20 167 208 1 101 880 00 CERAMIC 41PF 5 C559 1 124 126 00 ELECT 4TuF 20 10 0209 1 130 473 00 MYLAR 0 00154 5 560 1 124 473 11 ELECT 1000uF 20 10 0210 112338200 ELECT 3 20 100V C601 1 124 563 11 ELECT 2200uF 20 257 e Ref No Part No Description Remark Ref No Part No Description Remark C602 1 101 005 00 CERAMIC 22000PF FUSE gt CB03 1 101 004 00 CERAMIC 0 01uF 0604 1 124 907 11 ELECT 100 20 NF801 1 532 591 00 FUSE GLASS TUBE 2A 125V 605 1 124 472 11 ELECT 470uF 20 10 P C606 1 124 126 00 ELECT 4TuF 205 10
10. Cl 102 074 00 CERAMIC 0 00 10 c 102 960 00 CERAMIC 24PF 54 4 102 960 00 24PF 54 Boy c5 102 943 00 CERAMIC 6 OPF 0 5PF 50V 6 102 973 00 CERAMIC 100PF 5 Boy 07 124 907 11 ELECT 10uF 206 8 102 074 00 CERAMIC 0 00 10 4 101 004 00 CERAMIC 0 010 50 10 124 907 11 ELECT 10uF 20 124 927 11 ELECT 4 TuF 20 21007 12 124 903 11 ELECT 20 013 124 907 11 ELECT 10uF 20 C14 124 907 11 ELECT 10uF 20 C15 1 101 004 00 CERAMIC 0 OluF 5ov Cl6 124 907 11 ELECT 100 20 CIT 124 907 11 ELECT 10uF 20 Bov lt FILTER gt CF2 1 567 097 61 FILTER CERAMIC 10 7MHz CF3 1 567 097 61 FILTER CERAMIC 10 7MHz lt CONNECTOR gt CN152 1 565 980 11 HOUSING CONNECTOR PC BOARD 9P lt VARIABLE CAPACITOR gt T1 4 CVi 4 1 141 458 11 CAP VAR RADIO TUNING DIODE 03 8 719 109 93 DIODE RD6 2 5 2 FILTER gt 1 236 022 11 FILTER BAND PASS The components identified by mark or dotted line with mark are critical for safety Replace only with part number specified Ref No Part No Description Remark Ref No Part No Description Remark HARDWARE ST 161 8 752 061 79 I C CX20111 T6 lt COIL gt 1 7 685 648 79 SCREW BVIP 3X12 N S 2 7 626 323 31 SPRING PIN 4X14 1 402 523 11 ANTENNA FERRITE ROD 13 1 681 548 04 SCREW B 3X8 L2 1 1 406 042 00
11. TERY n Pec ged SIZE C osn TEC DESIGNATION R20 Ee 069 20 8 pcs 12V 1 o FG91 2 2 960 D esi 5 pos ORIVE 0551 9952 eco NM BOARD M MM a a 04 LI 5 16 e IC Block Diagrams IC1 CX20111 T6 BANDPASS SIGNAL CONTROL vec RIPPLE DET AFC AFC AM FM AM FILTER OUT AGC AGC IF OUT IN 18 5 4 BANDPASS SIGNAL OUTPUT FM AM BAND SELECT REGULATER GND FM AM AFC FM Reg FM AM NC FM GNO AM DISCRI osc osc OUT RF RF IN RF IN OUT 101 AN5707NS 2 l PULSE WIDTH SIGNAL 5 DETECTION SETTING BAR DISPLAY POSITION ADJUSTMENT CHARGE DISCHARGE CIRCUIT SECTION 5 EXPLODED VIEWS NOTE The mechanical parts with no reference number in the exploded views are not supplied they are seldom required for routine service Some delay should be anticipated when ordering these items 5 1 REAR CABINET SECTION 6 Ref No Part No Description Remark 4 039 698 01 HANDLE BLACK BLACK 4 039 698 11 HANDLE WHITE WHITE 4 039 703 01 CABINET REAR BLACK BLACK 4 039 703 11 CABINET REAR WHITE WHITE 4 039 686 01 BRACKET
12. 1 PLATE INDICATION CH WHITE WHITE 4 039 689 01 KNOB MODE BLACK BLACK 4 039 689 11 KNOB MODE WHITE WHITE 4 039 688 01 KNOB TV BAND BLACK BLACK 4 039 688 11 KNOB TV BAND WHITE WHITE 4 039 687 01 BUTTON POWER 4 039 702 01 CABINET FRONT BLACK BLACK 4 039 702 11 CABINET FRONT WHITE WHITE 4 039 700 01 BUTTON CHANNEL CH CALL BLACK BLACK 4 039 700 11 BUTTON CHANNEL CH CALL WHITE WHITE Ref No The components identified by mark or dotted line with mark are critical for safety Replace only with part number specified 67 y wi LE Part No Description Remark 58 58 58 60 61 4 039 690 01 KNOB VOLUME BLACK BLACK 4 039 690 11 KNOB VOLUME WHITE WHITE 3016 359 A BOARD COMPLETE 4 039 681 01 GEAR TUNING 4 039 693 01 POINTER 4 039 701 01 BRACKET POINTER 4 039 691 01 KNOB RADIO TUNING BLACK BLACK 4 039 691 11 KNOB RADIO TUNING WHITE 4 039 694 01 DRUM TUNING CAPACITOR 3016 362 BOARD COMPLETE 4 039 682 01 SPRING CRT RETAINER 3 345 577 01 PLATE GROUND CRT 1 546 075 11 CATHODE RAY TUBE B W E2282 1 451 365 21 DEFLECTION YOKE 3 714 118 01 SCREW 1 7X4 NOTE Due to standardization replacements in the parts list may be different from the parts specified in the diagrams or the components used on the set and X mean
13. 9 41811 CARBON 1 2K 5 1 4 R132 1 247 895 00 410K 5 1 48 R504 1 249 431 11 CARBON 15K5 1 4W R136 1 249 437 11 CARBON 47K 5 1 4 R505 1 249 405 11 CARBON 100 5 1 44 31 1249 425 11 CARBON 47K 5 1 4 R506 1 249 393 11 CARBON 10 i 1 9 51 1 249435 1 CARBON 33K 59 1 R551 1 249 42211 CARBON 2 7K 5 1 4N R152 1 249 429 11 CARBON 10K 5 1 R552 1 949 418 11 CARBON 1 2K 5 1 53 1 249 429 11 CARBON 10K 5 1 48 R553 1 949 419 11 CARBON 390 5 R154 1 249 437 1 CARBON 47K 5 1 4N R554 1 949 415 11 CARBON 680 5 1 48 55 1 949 425 11 CARBON 4 7K 5 1 45 R555 1 247 889 00 CARBON 270K 5 1 48 56 1 249 437 11 CARBON 5 1 48 R556 1 249 433 11 CARBON 22K 59 1 4 R157 1 249 4425 11 CARBON 4K59 1 R557 1 949 436 11 CARBON 39K 5 1 48 58 1 249 432 11 CARBON 18K 59 1 R558 1 949 426 11 CARBON 5 8K 5 1 4 R201 1 249 499 11 CARBON 10K 5 1 48 R559 1249 40 11 CARBON 82K 5 1 48 R202 1 249 497 11 CARBON 6 8K 5 1 48 560 1 249 415 11 CARBON 680 5 1 48 R203 1 249 496 11 CARBON 5 6K 5 1 1561 1 249 416 11 CARBON 820 5 1 R204 1 249 413 11 CARBON 470 5 1 4 562 1 249 411 11 CARBON 330 5 1 4 R205 1 949 407 11 CARBON 150 5 1 49 R563 1 249 385 11 CARBON 22 5 1 6 R206 1 249 405 11 CARBON 100 5 1 48 R565 1 249 381 1 CARBON 1 5 1 N R207 1 249 416 11 CARBON 820 5 1 4 R567 1 249 411 1 CARBON 330 5 1 4N R208 1 249 499 11 CARBON 10K 5 1 R568 1 249 433 1 CARBON 22K 5 1 4 R209 1 249 415 11 CARBON 680 5
14. IC C801 1 101 005 00 CERAMIC 22000PF 0101 8 759 420 88 IC AN5707NS 802 1 102 074 00 CERAMIC 0 0010 10 10102 8 759 701 50 I NJM3404AD 803 1 124 126 00 ELECT 4 2058 10 103 8 759 982 21 RC78L05A 804 1 106 379 12 MYLAR 0 033uF 5 200v IC201 1 808 293 11 IC AN5151N ANC805 1 106 379 12 MYLAR 0 033uF 5 2oov 451 8 759 702 01 IC NJM386BS C806 1 124 915 11 ELECT 10uF 205 63 IC801 8 759 802 17 IC 15630 807 1 128 119 21 ELECT 2 3507 C808 1 102 050 00 CERAMIC 0 01 9 Boov lt JACK gt C809 1 136 161 00 MYLAR 0 047uF 10 C810 1 101 004 00 CERAMIC 0 OluF 5151 1 507 667 00 JACK MIC EXT ANT 5451 1 695 473 11 JACK EAR C811 1 126 515 11 ELECT 4 10 Bov J601 1 580 288 11 JACK POWER DC IN 12V C813 1106 347 00 MYLAR 1500 5 200v C814 1136 159 00 MYLAR 0 033uF 10 Bov lt COIL gt lt FILTER gt 1201 141031211 INDUCTOR 0 22uH 1202 1 404 785 11 COIL VIF DETECTOR CF201 1 567 115 00 FILTER CERAMIC 1203 1 404 785 11 COIL VIF DETECTOR CF202 1 577 066 11 FILTER CERAMIC DISCRIMINATOR 1204 141097211 INDUCTOR 15uH 1402 1414403041 INDUCTOR 2TuH lt CONNECTOR gt 1451 140842100 INDUCTOR 100uH CNI51 1 568 454 11 PIN CONNECTOR PC BOARD 9 1501 140842100 INDUCTOR 100uH CN153 1 564 777 11 PLUG CONNECTOR 2 5MM 2P 1502 1 408 418 00 INDUCTOR 56uH CN451 1 564 777 11 PLUG CONNECTOR 2 5MM 2P CN601 1 564 777 11 PLUG CONNECTOR 2 5MM 2P lt TRANSISTOR g
15. N R813 104942911 CARBON 10K 5 1 48 lt VARIABLE RESISTOR gt RV101 1 238 020 11 RES ADJ CARBON 100K RV102 1 238 020 11 RES ADJ CARBON 100K RV103 1 238 019 11 RES ADJ CARBON 47K RV104 1 238 019 11 RES ADJ CARBON 47K RV201 1 241 629 11 RES ADJ CARBON 4 7 RV401 1 238 049 21 RES VAR CARBON 2K CONTR RV451 1 223 365 21 RES VAR CARBON 10K VOLUME RV501 1 241 630 11 RES ADJ CARBON 10K RV551 1 241 628 11 RES ADJ CARBON 2 2K RV552 1 238 050 21 RES VAR CARBON 100K Y HOLD NRVGO1 1 241 627 11 RES ADJ CARBON 1K RV801 1 238 051 21 RES VAR CARBON 1M BRT lt SWITCH gt S101 1 554 088 41 SWITCH KEY BOARD CH CALL 8102 1 554 088 41 SWITCH KEY BOARD CHANNEL 103 1 554 088 41 SWITCH KEY BOARD CHANNEL S151 1554 22 00 SWITCH SLIDE TV BAND 601 1 570 690 U SWITCH PUSH POWER FILTER SWF201 1577 44 11 FILTER CERAMIC TRANSFORMER gt 1801 1 439 487 21 TRANSFORMER ASSY FLYBACK TUNER gt TU151 1 693 196 11 TUNER UNIT EE E EEE E EEEE EE EE E Ref No Part No Description Remark 3016 362 BOARD COMPLETE 3 714 118 01 SCREW 1 7X4 4 039 681 01 GEAR TUNING 4 039 691 01 KNOB RADIO TUNING BLACK 4 039 691 11 KNOB RADIO TUNING WHITE 4 039 693 01 POINTER 4 039 694 01 DRUM TUNING CAPACITOR 4 039 701 0 BRACKET POINTER 7 685 646 79 SCREW P 3X8 TYPE2 NON SLIT lt CAPACITOR gt
16. OWN THIS MANUAL OR IN SUPPLEMENTS PUB BLACK AND WHITE TV AM FM TUNER SONY Polarity of the plug NOTEONTHEANODECAPREMOVAL Even when the power switch is off the voltage at the anode cap is still high Remove the anode cap as follows Discharge the anode pin to the ground anode cap 2 Pinch and remove the anode pin with a pair of tweezers At this time be careful not to scratch the anode button Caution on Reinstallation Confirm that the anode button is inserted into the anode securely TABLEOFCONTENTS Section Title Page Section Title Page 1 GENERAL Location of Controls e Power Vie qui MERE 4 e Watching the TV cond e Listening to the Radio 5 e External Antenna Connection 5 2 DISASSEMBLY 2 1 Cabinet rear 222 i 6 25 Cathode ray Tube DUE 6 2 4 dene aR 6 2 5 Pointer Setting vem dr dedo 6 3 ELECTRICAL ADJUSTMENTS 3 1 T nerSection ilum eer a DR ER EUER 1 3 35 Section seo bees epe eU Eg US 8 4 DIAGRAMS 4 1 Semiconductor Lead Layouts 10 42 Block 2 43 Printed Wiring 2 13 44 S
17. Short 5104 CH CALL State where the display bar is shown on the screen 2 Set S151 TV BAND to the VHF side 3 Receive the broadcast of 2CH by pushing 102 CHAN NEL or S103 4 Adjust RV103 so that the display is corresponded to the position of 2CH 3 Receive the broadcast of 13CH and adjust RV101 so that the display bar is corresponded to the 13CH Note Since items 4 and 5 will interfere each other the adjustment is necessary for 2 to 3 times 6 Receive the broadcasts of 2 to 13CH and check if the display bar is corresponded to each channel 7 Set S151 TV BAND to the side 8 Receive the broadcast of 14CH and adjust RV104 so that the display bar is corresponded to the position of 14CH 9 Receive the broadcast of 69CH and adjust RV102 so that the display bar is corresponded to the position of 69CH Note Since the items of 8 and 9 will interfere each other the adjustment is necessary for 2 to 3 times 10 Receive the broadcasts of 14CH to 69CH and check if the display bar is corresponded to the position of each chan nel 11 Disconnect the S104 shorted in the above item 1 Adjustment Location B board conductor side TUNING 69CH aviol RV IO2 RVIOS R V SECTION 4 DIAGRAMS 4 1 SEMICONDUCTOR LEAD LAYOUTS AN5151N NJM386BS 2SB1094 LK 2SD1159 28 15 M pM 123450703 i Top view B AN5707NS RC78L05A m 25 2786
18. V 403 102 116 00 CERAMIC 680PF 10 Cl03 1 131 498 00 TANTALUM 1uF 10 25V 0404 1 136 165 00 MYLAR 0 1uF 10 0104 1 102 074 00 CERAMIC OOluF 10 105 1 109 525 11 CERAMIC 8PF 54 0405 1 124 907 11 ELECT 10uF 20 406 1 101 361 00 CERAMIC 150PF 5 C106 1 102 121 00 CERAMIC 2200PF 10 0407 1 101 880 00 CERAMIC 4 5 107 1 101 004 00 CERAMIC OluF C408 1 102 121 00 CERAMIC 2200PF 10 108 1 194 916 11 ELECT 22uF 2 63 C451 1 136 153 00 FILM 0 O1uF 5 109 1 101 004 00 CERAMIC OluF 110 1102 115 00 CERAMIC 560PF 10 Bov C452 1 124 120 11 ELECT 220uF 20 25V C453 1 136 165 00 MYLAR 0 luF 10 111 112492711 ELECT 4 Tuk 2 100 C454 1 101 004 00 CERAMIC 0 1uF 114 1124 902 00 ELECT 0 47uF 2 455 1 124 360 00 ELECT 1000uF 20 16 C117 1 101 006 00 CERAMIC 0 047uF C456 1 124 907 11 ELECT 100 20 Bov 118 1 102 973 00 CERAMIC 100PF 5 0190 1 101 005 00 CERAMIC 22000PF C457 13244771 ELECT 4TuF 20 28V 501 1 136 153 00 FILM 0 01 5 121 132447711 ELECT 20 25V 502 1 130 485 00 MYLAR 0 015uF 5 124 1424 902 00 ELECT 0 47uF 20 0504 1 124 893 11 ELECT 2200uF 20 10 151 1102 074 400 CERAMIC 0 OOluF 10 505 1 101 004 00 CERAMIC 0 0 0152 1 109 121 00 CERAMIC 2200PF 10 153 1124490711 ELECT 100 20 506 1 124 903 11 ELECT 198 20
19. cal order given 2 1 CABINET REAR battery case lid cabinet rear 12 BVTP3X12 2 2 BOARD board B board 0 power button 2 3 CATHODE RAY TUBE BVTP3x10 T board 2 4 R BOARD CRT retainer spring cathode ray tube 2 5 POINTER SETTING Insert the position of pointer to the ditch of left edge Turn the tuning capacitor drum fully to the direction of arrow Set the pointer bracket i PTP3X8 SECTION 3 ELECTRICAL ADJUSTMENTS 3 1 TUNER SECTION e FM Section Setting MODE switch FM FM rf signal generator telescopic antenna 22 5kHz frequency deviation by 400 2 signal output level as low as possible e Section Setting MODE switch AM AM rf signal generator Put the lead wire antenna close to Q A the set 30 amplitude modulation by 400Hz signal VTVM range Q 5 5V ac EAR jack e Repeat procedures in each adjustment several times and the frequency coverage and tracking adjustments should be finally done by the trimmer capacitors e Remove telescopic antenna in section adjustments FM FREQUENCY COVERAGE ADJUSTMENT Adjust for a maximum reading on 86 5MHz 109 5MHz AM FREQUENCY COVERAGE ADJUSTMENT Adjust for a maximum reading on VTVM 520kHz 1 750kHz AM TRACKING ADJUSTMENT 620kHz 1 400kHz AM IF ADJUSTMENT A
20. chematic Lee 15 5 EXPLODED VIEWS 5 1 Rear Cabinet l9 52 Front Cabinet Section 20 6 ELECTRICAL PARTS 21 SAFETY After correcting the original service problem perform the following safety checks before releasing the set to the customer 1 Check area of your repair for unsoldered or poorly soldered connections Check the entire board surface for solder splashes and bridges 2 Check the interboard wiring to ensure that no wires are pinched or contact high wattage resistors Check that all control knobs shields covers ground straps and mounting hardware have been replaced Be absolutely certain that you have replaced all the insulators 4 Look for unauthorized replacement parts par ticularly transistors that were installed during a previous repair Point them out to the customer and recommend their replacement 5 Look for parts which though functioning show obvious signs of deterioration Point them out to the customer and recommend their replace ment 6 Check the line cord for cracks and abrasion Recommend the replacement of any such line cord to the customer 7 Check the condition of the monopole antenna if any Make sure the end is not broken off and has the plastic cap on it Point out the danger of impalement on a broken antenna to the customer and recommen
21. d antenna s replacement 8 Check the B and HV to see they are at the values specified Make sure your instruments are accurate be suspicious of your HV meter if sets always have low HV 9 Check the antenna terminals metal trim metallized knobs screws and all other exposed metal parts for AC leakage Check leakage as described below To Exposed Metal Parts on Set CZ 0 151 voltmeter 77 esy Earth Ground Fig A Using an AC voltmeter to check AC leakage CHECK OUT LEAKAGE TEST The AC leakage from any exposed metal part to earth ground and from all exposed metal parts to any exposed metal part having a return to chassis must not exceed 0 5 mA 500 microampers Leakage current can be measured by any one of three methods 1 A commercial leakage tester such as the Simpson 229 or RCA WT 540A Follow the manufacturers instructions to use these instru ments 2 A battery operated AC milliammeter The Data Precision 245 digital multimeter is suitable for this job 3 Measuring the voltage drop across a resistor by means of a VOM or battery operated AC volt meter The limit indication is 0 75 V so analog meters must have an accurate low voltage scale The Simpson 250 and Sanwa SH 63Trd are examples of a passive VOM that is suitable Nearly all battery operated digital multimeters that have a 2V AC range are suitable See Fig A HOW TO FIND A GOOD EARTH GROUND A cold water pipe
22. djustment Location R board component side AM FREQUENCY AM TRACKING ADJ ty FREQUENCY COVERAGE ADJ COVERAGE ADJ 14 14 CT2 12 1 12 2 TRACK NG ADJ 3 2 TV SECTION Setting MODE switch TV BAND switch VHF or Centering Adjustment Procedures l Tune in off the air signal 2 Adjust the centering magnet so that the picture is in the center 3 After the adjustment look the magnets with suitable locking compound Adjustment Location CRT centering magnet adjustment screw B 8 8V Adjustment Procedure Adjust RV601 for 8 8V reading on collector voltage of Q601 Horizontal Frequency H HOLD Adjustment Procedures l Connect between IC201 pin and with 1kQ resis tor 2 Connect the frequency counter to C201 pin 3 501 for 15 734 2 60 2 reading on frequen Cy counter 4 After the adjustment remove the resistor in item 1 Vertical Amplitude V SIZE Adjustment Procedures l Tunein an off the air signal 2 Adjust RV551 for the best vertical amplitude RF AGC Adjustment Procedures l Tune in off the air signal 2 Adjust RV201 so that snow noise disappears from the picture Adjustment Location A board component side 7 9 9 0601 63 16 S ADJ RF AGC J Rv201 5 X Tuning Adjustment Procedures l
23. is guaranteed earth ground the cover plate retaining screw on most AC outlet boxes is also at earth ground If the retaining screw is to be used as your earth ground verify that it is at ground by measuring the resistance between it and a cold water pipe with an ohmmeter The reading should be zero ohms If a cold water pipe is not accessible connect a 60 100 watts trouble light not a neon lamp between the hot side of the receptacle and the retaining screw Try both slots if necessary to locate the hot side of the line the lamp should light at normal brilliance if the screw is at ground potential See Fig B Trouble Light d Ohmmeter 1 Outlet Box Cold water Fig B Checking for earth ground Location Controis Screen Handle POWER switch CHANNEL buttons VOLUME control TV BAND selector VHF UHF EAR earphone jack RADIO TUNING control CH CALL button MODE selector Dial scale Battery compartment bottom Telescopic antenna BRT brightness control CONTR contrast control DC IN 12V external er input 12 Exil V HOLD vertical hold control EXT ANT external antenna jack jac Power Sources Usingn House Current 120V AC Using the supplied AC power adaptor A to a wall outlet AC power adaptor to DC IN 12V Note Use only recommended AC power adaptor Do not use any other AC power adaptor Polarity of the plug Batteries Size D R20 xg
24. ritical for safety Replace only with part number Specified a Ref No Part No Description Remark Ref No Part No Description Remark R109 1 249 428 1 CARBON 8 2K 5 1 R401 1 249 409 11 CARBON 220 5 1 48 R110 1 249 4435 11 CARBON 33K 5 1 R402 1 249 393 11 CARBON 10 5 1 48 R111 1 215 459 00 METAL 39K 1 1 amp W R403 1 249 412 11 CARBON 390 5 1 4 R112 1 949 437 11 CARBON 47K 5 1 48 R404 1 249 417 11 CARBON 5 1 4 R113 1 249 499 11 CARBON 10K 5 1 48 R405 1 249 417 1 CARBON 1K 5 1 4 115 1 249 426 11 CARBON 5 8K570 1 406 1 249 429 11 CARBON 10K 5 1 4 R116 1 249 495 11 CARBON 4 785 1 4 R407 1 249 429 11 CARBON 10K 5 1 AN 117 124944111 CARBON 100K 5 1 4N R408 1 249 427 11 CARBON 8 86 5 1 4 18 1 249 437 11 CARBON 47K 5 1 R409 1 249 413 11 CARBON 470 5 1 48 20 1 215 463 00 METAL 56 1 1 9 R410 1 249 409 11 CARBON 220 5 1 48 21 1 249 417 11 CARBON 1K 5 1448 R411 1 249 433 11 CARBON 22K 5 1 22 1 249 440 11 CARBON 82K 5 1 4W R451 1249 44 11 CARBON 560 5 1448 23 124944111 CARBON 100K 5 1 R452 1949 4011 CARBON 4T 5 124 1 947 899 11 CARBON 680K 5 1 R453 1 249 401 1 CARBON 4 5 1 4 125 1 240 430 1 CARBON 68K 5 R454 1 249 393 11 CARBON 10 19 1 4 126 1 949 409 11 CARBON 220 5 1 4 R501 1 249 434 11 CARBON 27K 5 1 4 130 1 249 417 11 CARBON 1K 5 1 48 R502 1 249 433 11 CARBON 22K 5 1 R131 1 247 887 00 CARBON 220K 5 1 4 R503 1 24
25. standardized parts so they may have some difference from the Items marked they are seldom required for routine service Some delay should be anticipated when ordering these items SECTION 6 ELECTRICAL PARTS LIST SEMICONDUCTORS In each case for example are not stocked since The components identified by mark A or dotted line with mark are critical for safety Replace only with part number specified original one UA uPA e RESISTORS uPB UPC APC uPD When indicating parts by resistors are in ohms CAPACITORS reference number please METAL Metalfilm resistor uF include the board METAL OXIDE Metal oxide film resistor COILS F nonflammable ul uH Ref No Part No Description Remark Ref No Part No Description Remark 3016 359 A BOARD COMPLETE INCLUDING B C BOARD 711 1 101 361 00 CERAMIC 150PF 5 50 C212 1 136 161 00 MYLAR 0 047uF 10 50 C213 1 124 907 11 ELECT 10uF 208 50 1 526 736 00 SOCKET CRT C214 1136 157 00 MYLAR 0 022uF 10 50 7 685 646 79 SCREW P 3X8 NON SLIT C215 1136 157 00 MYLAR 0 022uf 10 amp 507 CAPACITOR gt C216 1 102 947 00 CERAMIC 10PF 5 C401 1 124 443 00 ELECT 100uF 20 10V 01 119446451 ELECT 0 22uF 20 C402 1 100 116 00 CERAMIC 680 10 0102 1 162 851 11 CERAMIC 16
26. t CN801 1 564 778 11 PLUG CONNECTOR 2 5MM 4P 101 8 729 904 36 TRANSISTOR DTC114YS DIODE 0102 8 729 119 79 TRANSISTOR 28 2785 FEK 0151 8 729 119 77 TRANSISTOR 2SA1175 FEK D1 8 719 903 27 DIODE 158168 0152 8 729 119 77 TRANSISTOR 25 1175 01 8 719 903 27 DIODE 155168 0153 8 729 900 89 TRANSISTOR DTCIAMES D101 8 719 911 19 DIODE 155119 D102 8 719 911 19 DIODE 155119 Q201 8 729 178 63 TRANSISTOR 2502786 D103 8 719 911 19 DIODE 189119 0401 8 729 821 01 TRANSISTOR 2802909 403 8 729 119 79 TRANSISTOR 2502785 D151 8 719 903 27 DIODE 195168 0451 8 729 904 36 TRANSISTOR DTC114YS D152 8 719 911 19 DIODE 188119 0551 8 799 119 79 TRANSISTOR 29 2785 0201 8 719 110 03 DIODE RD7 5ES B2 D551 8 719 911 19 DIODE 188119 Q552 8 729 011 92 TRANSISTOR 2SC2001TP K1K2 1552 8 719 911 19 DIODE 185118 0553 8 729 195 23 TRANSISTOR 254952 0601 8 729 141 83 TRANSISTOR 25B1094 LK D553 8 719 911 19 DIODE 188119 0602 8 729 119 79 TRANSISTOR 2802785 FEK D601 8 719 979 32 DIODE RL202 M11 0801 8 729 011 92 TRANSISTOR 2862001TP K1K2 D602 8 719 109 93 DIODE 16 2ES B2 D801 8 719 911 19 DIODE 158119 0802 8 729 017 78 TRANSISTOR 2591159 D802 8 719 300 33 DIODE RU 3AM lt RESISTOR gt D803 1 808 394 11 DIODE 6 1065020 D804 8 719 300 33 DIODE RU 3AM R106 1 249 440 11 CARBON 82K 5 1 4N D805 8 719 200 02 DIODE 10E2 R108 1 249 429 11 CARBON 10K 5 1 48 The components identified by mark A or dotted line with mark are c
27. up
28. urn the control when the picture rolls vertically BRT control Turn the control counterclockwise for more brightness and clockwise for less brightness CONTR control The picture contrastbecomes stronger by turning the control counterclockwise and is reduced by turning it clockwise yenuew uononajsut T NOILO3S 5 3 x w o ct gt o 3 Listening to the Radio External Antenna Connection Outdoor antenna Monitoring the video camera recorder After connecting as illustrated turn on the power of the equipment and tune in the channel 3 or 4 Video camera recorder VHF antenna UHF antenna to RF OUT 75 Coaxial cable Antenna cable 110 not supplied 1 Press the POWER switch 2 Set the MODE selector to FM or AM 1 3 Pul out the antenna fully for FM reception RADIO TUNING to EXT ANT 4 Tune in the desired station 5 For FM reception adjust the length and direction of the antenna For AM reception rotate the unit 6 Adjust the volume BI To tum off the radio Press the POWER switch and fold the antenna To listen using the earphone See Watching the TV Note Se sure to turn oft the radio after use especially when listening with earphone This prevents unnecessary battery wear SECTION 2 DISASSEMBLY Note Follow the disassembly procedure in the numeri
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