Sony XR-C7220R, Service Manual

Page 1: ...t Mechanism Type MG 25D 136 SPECIFICATIONS XR C7220R For RM X4S Remote Commander please refer to RM X4S Service Manual 9 925 698 previously issued Dolby noise reduction manufactured under license from Dolby Laboratories Licensing Corporation DOLBY and the double D symbol a are trade marks of Dolby Laboratories Licensing Corporation ...

Page 2: ...iring Board Main Board Component Side 33 6 7 Printed Wiring Board Main Board Conductor Side 35 6 8 Schematic Diagram Main Board 1 4 37 6 9 Schematic Diagram Main Board 2 4 39 6 10 Schematic Diagram Main Board 3 4 41 6 11 Schematic Diagram Main Board 4 4 43 6 12 Printed Wiring Board KEY Board 45 6 13 Schematic Diagram KEY Board 47 6 14 Printed Wiring Board SUB INVERTER Board 49 6 15 Schematic Diagr...

Page 3: ... 3 SECTION 1 GENERAL This section is extracted from instruction manual ...

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Page 12: ...Follow the disassembly procedure in the numerical order given 2 three screws PTT2 6 6 2 screw PTT2 6 6 5 sub panel ass y 1 connector CN802 3 two claws 3 claw 4 connector CN500 1 connector CN201 3 two screws 2 6 6 4 lag 5 mechanism deck MG 25D 136 2 flexible flat cable CN250 ...

Page 13: ...4 main board 2 three ground point screws 1 connector CN553 1 connector J10 5 screw PTT2 6 10 3 screw PTT2 6 10 7 screw PTT2 6 10 9 seven screws PTT2 6 10 8 cord with connector ANT 6 inverter ass y 3 screw PTT2 6 10 0 heat sink ...

Page 14: ...bending the claw 6 Fit projection on D part 4 Fit claw on B part 3 Put the housing under A part 5 Fit projection on C part 1 Install the catch to the hanger 2 Install the hanger onto two claws of the housing 7 Holder the hanger by bending the claw hanger housing 2 Move the arm suction in the arrow direction and fit on projection 1 Fit the arm suction on the shaft projection ...

Page 15: ...A shaft B 2 Fit the lever LDG B on shafts A and B and install it 3 type E stop ring 2 0 gear LDG D 5 gear LDG FT 6 polyethylene washer 2 tension spring LD 2 2 tension spring LD 1 gear LDG FB lever LDG A hole hole 4 Align hole in the gear LDG D with hole the lever LDG A 3 Move the lever LDG B in the arrow direction 1 ...

Page 16: ... 16 GUIDE C 2 guide C 1 three claws MOUNTING POSITION OF CAPSTAN REEL MOTOR M901 two precision screws P2 2 capstan reel motor M901 30 ...

Page 17: ...nd to the parts adjusted 5 The adjustments should be performed with the power supply voltage unless otherwise noted Torque Measurement Mode Tension Meter Meter Reading Forward CQ 403A more than 90 g more than 3 18 oz Reverse CQ 403R more than 90 g more than 3 18 oz Mode Torque Meter Meter Reading Forward CQ 102C 30 65 g cm 0 42 0 90 oz inch Forward CQ 102C 0 5 4 5g cm Back Tension 0 01 0 06 oz inc...

Page 18: ...et posi tion Tape Speed Adjustment Setting Procedure 1 Put the set into the FWD PB mode 2 Adjust adjustment resistor for inside capstan motor so that the reading on the speed checker or frequency counter becomes in specification Specification Constant speed Adjustment Location See page 22 Dolby Level Adjustment Setting SHIFT button ON light up SET UP and PLAY MODE Preset 4 PLAY MODE n 5 n buttons ...

Page 19: ...Stereo Separation Adjustment Wide 3 FM Stereo Separation Adjustment Narrow 4 FM RDS S Meter Adjustment 5 MW Auto Scan Stop Level Adjustment FM Auto Scan Stop Level Adjustment Setting SOURCE button FM Procedure 1 Set to the test mode See page 18 2 Push the SOURCE button and set to FM Display 3 Push the preset 3 button Display 4 Adjust with the volume RV2 on TUX10 so that the FM indi cation turns to...

Page 20: ...ht up SET UP and PLAY MODE Preset 4 PLAY MODE n 5 n buttons NARROW mode Procedure L CH Stereo separation A B R CH Stereo separation C D The separations of both channels should be equal Specification Separation more than 18 dB Adjustment Location See page 22 FM RF signal generator Carrier frequency 98 00 MHz Output level 70 dB 3 2 mV Mode stereo Modulation main 1 kHz 20 kHz deviation 26 7 sub 1 kHz...

Page 21: ...just with the volume RV1 on TUX10 so that the MW indication turns to MW0 indication on the display window But in case of already indicated MW0 turn the RV1 so that put out light 0 indication and adjustment Display Adjustment Location See page 22 AM RF signal generator Carrier frequency 999 kHz 30 amplitude modulation by 1 kHz signal Output level 33 dB 44 7 µV 50 Ω set AM dummy antenna 30 Ω 15 pF 6...

Page 22: ... RV1 MW Auto Scan Stop Level Adjustment RV3 FM Stereo Separation Adjustment Wide RV4 FM Stereo Separation Adjustment Narrow RV2 FM Auto Scan Stop Level Adjustment RV240 R CH RV230 L CH Dolby Level Adjustment RV10 FM RDS S Meter Adjustment TP DOLBY L TP DOLBY R Dolby Level Adjustment ...

Page 23: ... B AM B AM B B FM AM D10 FM AM TUNER UNIT TUX10 LO DX VCO FM AM FM IF COUNT AM IF COUNT SEEK VT FM AM SD RECEIVE SEEK FM L OUT FM R OUT R CH R CH D50 MUTING CONTROL SWITCH Q51 A B FM AM SIGNAL METER BUFFER Q13 WIDE TUNMUTE VSM SD IN ST MONO FM AM PLL IC10 LO DX WIDE VSM AF SEEK SEEK SD ST MONO IF IN FM OSC AM OSC PD XOUT XIN X10 7 2MHz D IN D OUT CLK CE D IN D OUT CLK CE D IN D OUT CLK CE PLLSO PL...

Page 24: ...K VCT GAIN B Page 24 TAPE L C Page 30 LED ON D 22 16 21 17 40 42 33 32 31 30 26 25 23 24 41 39 A 36 38 AM IN L AUX IN L FM IN L TAPE IN L R CH R CH VOLCE DATA CLK MUTING Q340 MUTING Q430 MUTING Q330 MUTING Q440 22 MUTE 4 11 12 IN1 15 IN3 IN2 14 IN4 POWER AMP IC700 5 3 21 23 OUT2 OUT2 OUT4 OUT4 7 OUT1 OUT1 17 19 OUT3 OUT3 CN700 1 2 POWER CONNECTOR 1 9 FRONT L FRONT L FRONT R FRONT R REAR L REAR L R...

Page 25: ...EY ACTIVE SWITCH Q510 511 BUZZER DRIVE Q601 OSC D506 D510 Q902 VLC0 VLC5 GREEN 1 LED DRIVE Q900 LED DRIVE Q501 CONTRAST SWITCHING Q508 509 AD ON 80 NOSESW LSW900 910 LSW912 918 S900 SW801 SW500 NOSE DETECT ROTARY ENCODER RE900 BACKUP 5V BZ600 BUZZER P ON 10V LCD 10V LCD 10V LED DRIVE Q901 11 6 X600 3 68MHz X601 32 768kHz R952 SYSTEM CONTROLLER IC600 3 4 LIQUID CRYSTAL DISPLAY DRIVER IC900 26 90 SE...

Page 26: ... RST 3 BATT BATTERY SWITCH 10 BU IN 77 12 10 19 UNICKO 17 UNISI 18 UNISO 86 HSTX 11 24 SIRCS 90 D604 D523 TH600 D606 D601 D713 D507 EL900 LCD BACK LIGHT T550 INVERTER TRANSFORMER CN500 MAIN BODY SIDE CN900 FRONT PANEL SIDE AM B AM CIRCUIT B FM B FM CIRCUIT B VCC 7 7 ACC 14 ILL 9V REGULATOR Q11 9V FOR VT 5V REGULATOR Q10 6V REGULATOR IC503 10V REGULATOR Q504 OSC Q556 TUNER ON 5V TUNER CIRCUIT B B S...

Page 27: ...re in Ω and 1 4 W or less unless otherwise specified internal component C panel designation U B Line H adjustment for repair Power voltage is dc 14 4V and fed with regulated dc power supply from ACC and BATT cords Voltages and waveforms are dc with respect to ground under no signal detuned conditions no mark FM AM MW LW TAPE PLAY Voltages are taken with aVOM Input impedance 10 MΩ Voltage variation...

Page 28: ...6 D530 F 2 D601 E 2 D604 D 3 D605 D 2 D606 D 2 D701 C 7 D702 B 7 D703 B 7 D704 B 6 D705 B 7 D712 D 4 D715 B 5 D717 D 7 D718 C 3 D719 C 3 IC10 F 11 IC11 E 12 IC50 J 11 IC201 G 3 IC250 H 11 IC301 G 8 IC302 F 10 IC500 D 5 IC600 H 5 IC602 D 2 Q11 E 9 Q14 G 13 Q15 G 12 Q16 E 12 Q17 E 12 Q50 I 12 Q51 J 12 Q60 I 12 Q80 I 12 Q201 F 3 Q202 G 3 Q250 H 10 Q330 B 12 Q340 B 11 Q430 B 11 Q440 B 12 Q502 K 10 Q50...

Page 29: ...8 J 12 D520 J 12 D521 K 10 D522 J 12 D532 E 2 D533 E 2 D534 E 2 D550 I 1 D602 B 1 D603 B 1 D608 B 1 D706 C 6 D707 C 6 D708 C 6 D709 D 2 D710 B 3 D711 B 9 D713 E 4 D714 E 3 D716 B 9 IC150 J 9 IC311 D 12 IC411 D 10 IC501 D 6 IC502 E 1 IC503 G 1 IC700 A 7 Q10 F 10 Q12 I 14 Q13 I 14 Q203 G 3 Q204 G 3 Q501 J 7 Q503 J 4 Q504 K 6 Q505 J 6 Q506 K 6 Q512 F 5 Q550 H 3 Q551 I 4 Q601 I 3 Q701 C 9 Q705 E 4 Pag...

Page 30: ...XR C7220R 37 38 6 8 SCHEMATIC DIAGRAM MAIN Board 1 4 See page 32 for Waveforms See page 51 for IC Block Diagrams Page 41 Page 43 Page 39 ...

Page 31: ...XR C7220R 39 40 6 9 SCHEMATIC DIAGRAM MAIN Board 2 4 See page 52 for IC Block Diagrams Page 38 Page 42 Page 43 ...

Page 32: ...XR C7220R 41 42 6 10 SCHEMATIC DIAGRAM MAIN Board 3 4 See page 32 for Waveforms See page 51 for IC Block Diagrams Page 37 Page 39 Page 43 ...

Page 33: ...XR C7220R 43 44 6 11 SCHEMATIC DIAGRAM MAIN Board 4 4 See page 53 for IC Block Diagrams Page 42 Page 38 Page 40 Page 50 Page 50 Page 50 Page 50 ...

Page 34: ...Location Component Side Ref No Location IC901 C 4 LED900 C 4 LED901 A 4 LED902 A 2 LED903 A 2 LED904 C 2 LED905 C 2 LED906 B 2 LED907 B 2 D901 C 5 D903 B 10 IC900 B 9 Q900 B 11 Q901 B 11 Q902 B 10 Q903 B 10 Semiconductor Location Conductor Side Ref No Location Page 49 ...

Page 35: ...XR C7220R 47 48 6 13 SCHEMATIC DIAGRAM KEY Board See page 32 for Waveforms Page 50 ...

Page 36: ...XR C7220R 49 50 6 14 PRINTED WIRING BOARD SUB INVERTER Board 6 15 SCHEMATIC DIAGRAM SUB INVERTER Board See page 32 for Waveform Page 44 Page 44 Page 44 Page 44 Page 47 Page 36 Page 46 Page 35 Page 36 ...

Page 37: ...VN SDA VREF MPX VSSA VDDA AFIN MAD PSWN SCL 2 1 6 15 11 13 16 14 12 INTERFACE REGISTER SIGNAL QUALITY DECODER CLOCKED COMPARATOR POWER SUPPLY RESET TEST CONTROL OSCILLATOR CLOCK PAUSE DETECTOR MULTI PATH DETECTOR 57kHz 8th ORDER BAND PASS FILTER RDS RDBS DECODER RDS RDBS DEMODULATOR IIC BUS SLAVE TRANSCEIVER 17 18 CIN 19 LVIN 20 8 7 DATA CLOCK DATA CLOCK 4 4 5 9 10 3 4 5 1 2 3 4 5 6 7 8 9 10 GND I...

Page 38: ...UX NR BIAS NR MS MODE OFF B T2 T1 IC250 CXA2510AQ T4 37 GAIN12 38 GAIN11 39 IN14 40 IN13 41 IN12 42 IN11 INPUT SW 36 GAIN134 LOUD VOLUME 8dB STEP VOLUME 1dB STEP TONE FADER 35 LDLC1 34 LDHC1 33 INAO1 32 VRIN1 31 VOUT1 30 TIN1 29 TCLC1 28 TCLC11 27 TCLC12 26 TCO1 25 FDIN1 24 FNTO1 23 REO1 VCTBUFF VCTBUFF VCTBUFF LATCH CONTROL LATCH 1 GAIN234 LOUD VOLUME 8dB STEP VOLUME 1dB STEP TONE FADER 2 LDLC2 3...

Page 39: ...OR 1 2 3 4 5 6 7 8 9 10 12 11 NC MODE2 MODE1 STB VDD AMP VCC ANT COM AM FM GND IC602 BA8270F E2 1 2 3 4 5 6 7 8 9 10 14 13 12 11 BUS ON SWITCH RESET SWITCH BATTERY SWITCH BUS ON RST BATT CLK VREF DATA GND VCC RST BUS ON CLK IN BU IN DATA IN DATA OUT ...

Page 40: ...0 H active 17 UNISI I Serial data input from the SONY bus interface IC602 18 UNISO O Serial data output to the SONY bus interface IC602 19 UNICKO O Serial data transfer clock signal output to the SONY bus interface IC602 20 SD IN I Station detector detect input from the FM AM tuner unit TUX10 Stop level for SEEK BTM etc is determined SD is present at input of H 21 CSV SO O Serial data output to th...

Page 41: ...n setting terminal AEP and UK models fixed at L German model fixed at 1 4 voltage 52 MTP I Multi path detection signal input from the RDS decoder IC150 53 VSM I FM and AM signal meter voltage detection input from the FM AM tuner unit TUX10 A D input 54 VCC Power supply terminal 5V 55 RAMBU I Internal RAM reset detection signal input from the RN5VD33AA IC501 Input terminal to check that RAM data ar...

Page 42: ...erational mode fixed at H in this set 89 MD0 I Setting terminal for the CPU operational mode fixed at H in this set 90 RESET I System reset signal input from the reset signal generator IC500 and reset switch SW800 L reset L is input for several 100 msec after power on then it changes to H 91 VSS Ground terminal 92 X0 I Main system clock input terminal 3 68 MHz 93 X1 O Main system clock output term...

Page 43: ...y B only dolby B and C type selection input dolby B and C at L input At normal mode dolby type selection signal output L dolby B H dolby C Fixed at H in this set 116 DOLBY I O Dolby control in out terminal At initial mode valid invalid selection input of dolby function valid at L input At normal mode dolby on off control signal output to the CXA2510AQ IC250 dolby on at H output 117 CSV NAR I H is ...

Page 44: ... 786 51 SCREW P 2X3 10 3 953 235 01 DAMPER OIL 11 3 341 752 11 WASHER POLYETHYLENE 12 3 011 170 01 GEAR HOLDER 13 X 3375 066 2 BRACKET GEAR ASSY 14 3 022 316 01 COVER 15 3 919 171 01 SCREW 2 6X6 C TIGHT 16 3 915 923 01 SCREW GROUND POINT 17 A 3317 680 A MAIN BOARD COMPLETE EXCEPT German 17 A 3317 684 A MAIN BOARD COMPLETE German 18 3 011 078 01 BRACKET POWER IC 19 3 022 317 01 BRACKET AMP 20 3 022...

Page 45: ... SOUND DSPL 60 3 932 225 01 SPRING OPEN 61 3 022 333 01 BUTTON OPEN 62 3 022 308 01 BUTTON PTY AF TA 63 3 022 327 01 PLATE LCD GROUND 64 1 694 414 11 CONDUCTOR BOARD CONNECTION 65 3 034 558 01 ILUMINATOR LCD 66 3 022 326 03 PLATE LCD LIGHT GUIDE 67 3 017 984 01 TAPE EL DOUBLE STICK 68 3 327 119 01 SPACER A 69 3 023 554 01 SEET EL ADHESIVE 70 3 027 109 01 WASHER POLYETHYLENE 71 X 3375 085 4 PANEL A...

Page 46: ...41 753 11 WASHER POLYETHYLENE 158 3 020 533 01 HOUSING 159 3 020 532 01 ARM SUCTION 160 3 020 534 01 HANGER 161 3 933 346 01 CATCHER 162 3 933 344 01 GUIDE C 163 3 014 798 01 SCREW HEAD SPECIAL 164 3 364 151 01 WASHER 165 X 3375 625 1 CHASSIS SV ASSY D 166 3 017 302 01 BELT 25 167 3 936 853 01 FLYWHEEL F 168 3 701 437 21 WASHER HP901 1 500 157 21 HEAD MAGNETIC PLAYBACK M901 A 3291 665 A MOTOR ASSY...

Page 47: ... 422 49 DIODE MA8056 L IC IC550 8 759 495 75 IC NJM317F TRANSISTOR Q552 8 729 421 22 TRANSISTOR UN2211 Q553 8 729 026 68 TRANSISTOR 2SD2525 TP Q554 8 729 421 22 TRANSISTOR UN2211 Q555 8 729 903 46 TRANSISTOR 2SB1132 P Q556 8 729 016 11 TRANSISTOR 2SD1507M Q557 8 729 021 94 FET 2SK1657 T1B RESISTOR R552 1 216 198 00 RES CHIP 1K 5 1 8W R553 1 216 198 00 RES CHIP 1K 5 1 8W R555 1 216 158 00 RES CHIP ...

Page 48: ...0W R907 1 216 057 00 METAL CHIP 2 2K 5 1 10W R908 1 216 061 00 METAL CHIP 3 3K 5 1 10W R909 1 216 065 00 RES CHIP 4 7K 5 1 10W R910 1 216 069 00 METAL CHIP 6 8K 5 1 10W R911 1 216 045 00 METAL CHIP 680 5 1 10W R912 1 216 045 00 METAL CHIP 680 5 1 10W R913 1 216 045 00 METAL CHIP 680 5 1 10W R914 1 216 049 11 RES CHIP 1K 5 1 10W R915 1 216 053 00 METAL CHIP 1 5K 5 1 10W R916 1 216 053 00 METAL CHIP...

Page 49: ... 164 004 11 CERAMIC CHIP 0 1uF 10 25V C155 1 163 251 11 CERAMIC CHIP 100PF 5 50V C158 1 164 161 11 CERAMIC CHIP 0 0022uF 10 100V C159 1 163 135 00 CERAMIC CHIP 560PF 5 50V C160 1 164 505 11 CERAMIC CHIP 2 2uF 16V C161 1 163 263 11 CERAMIC CHIP 330PF 5 50V C162 1 164 004 11 CERAMIC CHIP 0 1uF 10 25V C201 1 126 935 11 ELECT 470uF 20 16V C202 1 124 234 00 ELECT 22uF 20 16V C204 1 117 370 11 CERAMIC C...

Page 50: ...V C703 1 115 334 11 FILM 0 47uF 5 50V C704 1 124 589 11 ELECT 47uF 20 16V C705 1 163 251 11 CERAMIC CHIP 100PF 5 50V C706 1 136 227 11 MYLAR 0 001uF 5 50V C707 1 136 227 11 MYLAR 0 001uF 5 50V C708 1 163 251 11 CERAMIC CHIP 100PF 5 50V C709 1 115 326 11 FILM 0 1uF 5 50V C710 1 126 572 11 ELECT 4 7uF 20 35V C711 1 126 933 11 ELECT 100uF 20 16V C712 1 104 942 11 ELECT 1uF 20 50V C713 1 126 157 11 EL...

Page 51: ...IC250 8 752 079 79 IC CXA2510AQ T4 IC301 8 752 078 67 IC CXA1946BQ T6 IC302 8 759 711 82 IC NJM4580E IC311 8 759 711 82 IC NJM4580E IC411 8 759 711 82 IC NJM4580E IC500 8 759 443 72 IC RH5VL43AA T1 IC501 8 759 495 76 IC RN5VD33AA TL IC502 8 759 347 50 IC BA3918 V3 IC503 8 759 540 27 IC TA78DL06AS IC600 8 759 590 71 IC MB90574PFV G 210 BND IC602 8 759 449 89 IC BA8270F E2 IC700 8 759 490 74 IC TDA7...

Page 52: ... 1 216 081 00 METAL CHIP 22K 5 1 10W R61 1 216 089 00 RES CHIP 47K 5 1 10W R62 1 216 069 00 METAL CHIP 6 8K 5 1 10W R63 1 216 069 00 METAL CHIP 6 8K 5 1 10W R64 1 216 073 00 METAL CHIP 10K 5 1 10W R65 1 216 071 00 METAL CHIP 8 2K 5 1 10W AEP UK South European R65 1 216 077 00 METAL CHIP 15K 5 1 10W German R66 1 216 295 00 SHORT 0 R80 1 216 081 00 METAL CHIP 22K 5 1 10W R81 1 216 089 00 RES CHIP 47...

Page 53: ...P 100K 5 1 10W R518 1 216 025 00 RES CHIP 100 5 1 10W R519 1 216 025 00 RES CHIP 100 5 1 10W R520 1 216 295 00 SHORT 0 R521 1 216 025 00 RES CHIP 100 5 1 10W R522 1 216 025 00 RES CHIP 100 5 1 10W R523 1 216 025 00 RES CHIP 100 5 1 10W R524 1 216 025 00 RES CHIP 100 5 1 10W R530 1 216 675 11 METAL CHIP 10K 0 5 1 10W R531 1 216 675 11 METAL CHIP 10K 0 5 1 10W R532 1 216 675 11 METAL CHIP 10K 0 5 1 ...

Page 54: ...1 767 833 21 VIBRATOR CERAMIC 3 68MHz X601 1 567 098 41 VIBRATOR CRYSTAL 32 768kHz 1 669 656 12 SUB BOARD CONNECTOR CN800 1 779 170 11 SOCKET CONNECTOR 20P CN801 1 779 169 11 SOCKET CONNECTOR 18P CN802 1 778 330 21 PIN CONNECTOR PC BOARD 2P DIODE D810 8 719 977 03 DIODE DTZ5 6B LED LED800 8 719 058 14 LED CL 220PG C TS TAPE WINDOW LED802 8 719 038 07 LED CL 190PG CD T 6 RESISTOR R800 1 216 049 11 ...

Page 55: ...UAL INSTRUCTION INSTALL FRENCH GERMAN DUTCH ITALIAN South European X 3373 926 1 CASE ASSY XR for FRONT PANEL PARTS FOR INSTALLATION AND CONNECTIONS 501 3 009 613 21 FRAME 502 7 682 560 04 SCREW P 4X6 503 3 022 310 01 COLLAR 504 3 027 138 01 SPRING FITTING 505 3 934 325 01 SCREW K 5X8 TAPPING 506 1 775 543 11 CORD GROUND 507 X 3369 817 1 BRACKET ASSY for RM X4S AEP UK 508 7 685 248 14 SCREW KTP 3X1...

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Page 57: ... 70 XR C7220R Sony Corporation Personal Mobile Communication Company 9 926 430 11 99B057542 1 Printed in Hungary 1999 2 Published by Quality Assurance Dept ...