Document 6001816
Contents
1. et ble ee a 5 g lt 611 C612 ee Oi at 6 01 3628 a W TP Ti O O z 5 gt z 20 gt F 70 9 C608 1000 4 5 R604 33k re R606 33k R656 1 0 R607 10k R608 10k R609 10k bat ene eee rc gt a 611 610 3609 3608 607 606 605 604 603 602 601 820 680 470 27 29 4 623 3622 3621 3620 3619 3618 _ TAPEA REV ow R683 R682 R681 R680 590 No 5 GROOVE gt NOTE e Voltages and waveforms are with respect to ground under no signal conditions no mark FM Ere LED BOARD 62 5 Bot B GNB CLOCK SWITCH S 220 01 2802603 RESET MAIN SWITCH VE CN5O1 VF Page 61 SPE ANA 11 SWITCH HCD MC1 6 20 SCHEMATIC DIAGRAM POWER SECTION 1 2 3 4 5 6 7 8 9 10 11 CN992 2 AC MAIN AC MGND S 0 R993 MAIN Poge 62 2 3 GN R994 0 12. 51 for Printed Wiring Board See page 71 for Waveforms See page 56 for IC Pin Functions 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 BOARD amp BD BOARD BOARD 8415 1 105 CN102 CD DOOR Page 38 Page 38 CN413 a e e e 2 24 2 ane rooe XAAR 1 lt BOARD 5 CN405 CN402 CN401 1 5 aly 2P CN53 cI s 9 WY VY 41 457 l t 001927 6455 0 1 ET of ary l AEE Eke 6 FILTER AMP ah Be D PET T SENS3 T SENS2 3 5 9 B T SENS1 C411 1F 5 5V R446 A 7V GO A 7V T C412 0 1 ZA CB L CH SENS TABLE Gi C442 441 BOARD 3 a Bese 9 8 PE C A GN Page 52 as 44 BOORSW MAI R401 47k 4 8 19 1 8 RO CB R CH CB CHANGER CONTROL 1 402 C493 16441 1 2 1640 1 402 _ i 0 0088 BIGITAL OUT 941 047 124 8 2 6 2045 SWITCH 77 04 egm OUT ow C 8 6N8 4 9 Bt A 5V l 9 9 6 G CB U GNB U 5V UNSW TO 5 5 M 7V UNSW Page 61 M GNB UNREG l RESET 80 11 TO 2 5 78
3. 601 2 2 uPC4570C 1 lt C301 390p lt C401 390p R301 120k 401 120k DECK PB LEVEL L RV301 2 2k DECK PB LEVEL R N 16 16402 214 22 REC PB SWITCH R609 B 331 0 120p R331 12k AM oO L331 27 C332 LT 330p lt lt C432 lt lt 5350 1451 27 OO R431 REC REC L C431 BIAS R BIAS L 300 RV441 RV341 220k 220k C433 C333 27 27 0625 BIAS ON OFF 0621 622 SWITCH Te 97 1601 2204H 7 3 0 94 7 7 7 5 0621 L602 2862001 2204H 7 7 1 5 amp 21 x O 0 N N N lt gt oc La 5 gt 6621 2 022 SE 2 g 0 01 nS rok th 100V T 238 B 2 521 8622 B 5 6 B 45 12 V _PB APB_LCH GNB_PB BPB_LCH BPB_RCH V _PB RELAY BIAS V _BIAS V _BIAS REC_RCH REC_LCH 13 MAIN BOARD CN106 Page 55 The components identified by mark A or dotted line with mark A are critical for safety Replace only with part number specified 46 HCD MC1 HCD MC1 6 10 SCHEMATIC DIAGRAM LEAF SW SECTION 1 2 3 4 5 7 8
4. Mee AC2 A O 1991 89295 POWER TRANSFORMER CN993 VF I POWER BOARD Ty 0801 0851 C807 22 100V No OVERLOAD SENSOR SW R808 D C801 R801 0 22 10 1 27 100V C803 220p 0811 804 155255 47k 08 R803 25 1841 470 C804 47 50V C802 680p R802 47k 0801 MAIN BOAR Page 54 C854 47 50V R853 470 C852 680 R852 47k Q811 Q812 HEAT SENSOR SW lt R826 100k R825 100 K NaN R827 C855 x gt ZR TH811 THERM 9813 155555 C853 851 0812 10 220p 2502603 100 X 0 7 STK4221MK2 US MODEL Voltages and waveforms are de with respect to ground STK4231MK2 E MODEL under conditions no mark MA Q0 e e Z Z D gt OOGO gt J JE om re lt ac The components identified by mark A or dotted a line with mark A are critical for safety Replace only with part number specified MAIN BOAR D 59 69 00
5. lt EEL MOLEX l aa ww gt 1 2 WHT HI Lok HHAEVHHS E PB L ra a lt m vaur a lt lt lt lt lt N C 3 17 27 1 TC 8 GNB TC B 5V R561 100 R524 10K 0 1 414 6 C356 1 50V C357 0 47 50 4 358 10 50 C355 10 50V TO 5 5 Page 61 R355 2 2 4 1 B 56 gt MUTE 5V ite i 58 gt RA 522 04 ne 62 gt 2 B al Ha gt J 26 65 gt 66 gt gt BN1F4M 7 0531 5355 TRG MOTOR 9336 339 0340 343 16 8 FFC 3 L 90990990909090920 909 0999009900090920 gt gt ad gt gt gt gt 1 NOTE Uhh 2 KITETTE ETETETT lt lt lt gt lt lt 5 lt 6 66 e Voltages and waveforms are dc with respect to ground i rii under no signal conditions AUDIO BOARD z no mark PB DECK A CN amp 01 46 250 PB DECK 1001 lt gt 09 56 HCD MC1 6 14 SCHEMATIC DIARGAM 3 5 SECTION See
6. mode advances to the next step The message TAPE A AG 5 appears 6 The tape B is played back in the FWD mode After two minutes of the FWD playback the aging mode advances to the next Step The message TAPE B AG 2 appears 7 The tape B runs in fast forward After two minutes of fast forward or at the shut off point the tape is stopped and the aging mode advances to the next step The message TAPE B AG 3 appears 8 The tape B is played back in the RVS mode After two minutes of the RVS playback the aging mode advances to the next step The message TAPE B AG 4 appears 9 The tape B is rewound and stops at the shut off The aging mode advances to the next step The message TAPE B AG 5 appears Function Change Mode Select either VIDEO or MD of the external FUNCTION input Procedure 1 Turn off the power 2 Press the two buttons ENTER and POWER at the same time The main power is turned on and the other function of the previous function is selected and displayed or VIDEO AM TUNER STEP 9 kHz 10 kHz Selection Mode Either the 9 kHz step or 10 kHz step can be selected for the AM channel step Procedure 1 Turn on the power and select TUNER using the FUNCTION button 2 Select AM with the TUNER BAND button and turn off the power 3 Press the two buttons and POWER at the same time The main power is turned on and the other frequency step of the previous mode is selected an
7. 4 VOLUME VIBEO MB C 125 L C102 10 119 220 50 2 2k e152 ee va 52 2206 a J101 2 2 D BHU L AONB R ol iF 29C 3423A 1 MUTE SWITCH Q142 2802603 SWITCH F z lt e e amp zal amp amp N N a 1 R166 l 2 0 52 45 35 0 31 gt F e 50 CH 30 gt R167 e 1 2 29 gt SWITCH SPEANA R173 47k 7 Ee ee 10 gt CN102 Aoo FFC 1 2 Sce fo ae ST 1 OV 99 ST 10V wro a STEREO At7V 17 TUNER a 0 gt 8 81 6 ST R gt E AUBIO B 5V 14 gt 3 N O O0 ROS B 5V MO FMAMTUNER 1 i UNIT IS SUPPLIED AS THE ASSEMBLED 1 BLOCK __ 1 AETV i 0 __ TO 8 9 lt CB L CH zA B CB A GND C R CH ill Page 58 __ __ rs a eee Y y v gt gt a 2 222 Tx Y NOTE I TO 2 5 22 Page 55 fc 90 Page 55 under no signa condi
8. 8 lt 27 l lt 25 FAN Mona M UNREG 1 5 lt 22 SW Page 54 lt 21 lt 20 one 33 HP L R726 100 R728 100 HP MIC BOARD 775 100 778 100 108 781 R777 100 R779 100 0 oH FESE a RELAY 9 7 SWITCH OG lt 4781 6 NOTE The components identified by mark A or dotted e Voltages and waveforms are with respect to ground line with mark A are critical for safety J a under no signal conditions Replace only with part number specified no mark FM 59 600 6 16 SCHEMATIC DIARGAM 5 5 SECTION e See page 51 for Printed Wiring Board 1 lt CB ATSV lt CB UtSV TO 5 5 lt CB U GNB Page 58 lt CB UNREG lt ST 0 0109 Aon Page 53 lt 50 lt 51 52 lt 53 lt 55 TO 2 5 lt 56 Page 56 lt 57 lt 58 lt 59 lt 40 lt 62 lt 64 MAIN BOARD 3 4 5 6 7 8 9 10 11 12 13 4 5 Page 59 5 5 C310 gt VFI VF2 si ice 5 11 82 5 7 8 3 2 D 9 2 5 6 TRANS AC2 BOARB 4 1 1C
9. 9 10 LEAF SW BOARD 91001 CAPSTAN MOTOR oe CONTROL NOTE Voltages and waveforms are dc with respect to ground under no signal conditions no mark Pl AY CAPSTAN x can measured R1007 11k 10 NORMAL 2 RVIOOT TAPE SPEED HIGH DECK A DECK PLUNGER PLUNGER PLUNGER SOLEOI D is supplied as the MECHANICAL BLOCK ASSY REEL SETECT engl CAPM gt 0 1 1002 PEEL DETECT TRG A GND TRG GN O TRG B B A SHUT 51005 MAIN BOARD lt 5V gt Ol 5V CN107 2 120 70 5 o 55 Ge 500 On PLAY SW ce V O O B HALFZA SLDE SIDE REC B O Om 120 70 51008 O __ N C 120 70 _ CN 1001 51001 51002 FEC A PLAY B PLAY O p O 49 50 6 12 SCHEMATIC DIARGAM 1 5 SECTION 1 2 3 MAIN BOARD 1 5 k SPEANA 812 47 0111 28 2605 15 POWER 0801 Page 69 TO 4 5 Page 59 Voltages and waveforms are with respect to ground J101 1 2 R101 MB L Le m SH F N 220 EQUALIZER 47k
10. 902 ACZ CN993 lt 1000 Page 70 CB UtSV Lt tT CB U GNB FAN MGNA M U B 5V _ Ss TC EMERG M 5V 1 TC GNB B B on z Be 501 O O O M ee NOTE e Voltages and waveforms are with respect to ground ii under no signal conditions PANEL no mark FM CN601 A Page 66 61 62 HCD MC1 HCD MC1 6 18 SCHEMATIC DIAGRAM PANEL SECTION Seepage 80 for IC Block Diagrams See 71 for Waveforms See page 79 for IC Pin Function Description 1 2 3 4 5 6 7 8 9 10 11 12 1 14 15 16 17 18 19 20 21 1 29105 055 651 29 427 C4625 C423 220 220 2 20 249 200 C617 1 50V 7L C421 220p Oo FUNC BOARD 10605 5855 2 SPEANA ba Q zZ NC NC vec L R BIAS F4 F2 NF ee 18 FI AREF BE 255 1 R620 gt Sa a 5 zZ 2 16601 TMP87CN74AF 6660 CONTROL 7 TE 2 2 0 LED lt 10 f JOG VOLUME ore 5 5 10 2 gt
11. HCD MC1 US Model E Model SERVICE MANUAL Ver 1 1 2001 10 e This set is the tuner deck CD and amplifier section in MHC MC1 Manufactured under license from Dolby Laboratories Model Name Using Similar Mechanism 150 10 Licensing Corporation CD DOLBY and the double D symbol Ddare trademarks Section CP of Dolby Laboratories Licensing Corporation Optical Pick up Name KSS 213BA F NP Tape deck Model Name Using Similar Mechanism HCD DR8AV Section Tape Transport Mechanism Type TCM 230AWR2 230PWR2 SPECIFICATIONS Laser output 44 6uW This output is the value measured at a distance of 200 mm from the objective lens surface on the Optical Pick up Block with 7 mm aperture Frequency response 2Hz 20kHz 0 5dB Wavelength 780 790nm Signal to noise retio More than 90dB Amplifier section U S A models AUDIO POWER SPECIFICATIONS POWER OUTPUT AND TOTAL HARMONIC DISTORTION With 8 loads both channels driven from 70 20 000 Hz rated 80 W channel minimum RMS power with no more than 0 9 toral harmonic distortion from 250 mW to read output Dynamic range More than 90dB Continuous RMS power output CD ORME BL DIGITAL OUT 80 80 W 8Q at 1 gt 10 THD Square optical connector jack rear panel Tortal harmonic distortion Output Level less than 0 09 80 at 1kHz 40W Inputs VIDEO MD IN phono jack voltage 250m V 450mV impedance 47kQ Ou
12. LIC CLK Page 55 CN454 3p 8 BOWN SW 0 gt amp POOR SW es 8 8 7 BOARD 3 CN54 4 Page 42 L401 l l MOTOR RIVE 2 oN 1 8 J LOAD ba LOAB LOAD LOA MOTOR TABLE 9 TABLE BOARS TABLE TABLE C463 CN61 1000p NOTE e Voltages and waveforms are dc with respect to ground under no Ssignal conditions mark CD 58 HCD MC1 6 15 SCHEMATIC DIARGAM 4 5 SECTION e See page 51 for Printed Wiring Board See page 80 for IC Block Diagrams 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 2801115 101 057 O eve 47 S FAN M UNREG 6 8705 8704 8705 112 1 82 11 52 758 _ 1 Cy R756 6 2 2k 7 4 7k 0 K C756 970 4 7 50 100 2881018 FAN FAN 8701 9751 R701 DRIVE B R OUT 199133T 1881547 22 R GND 2SA1115 701 L GN 28755 SWITCH 47k 47k R CH L our 6 I GND gt OT SPEAKER POWER AMP B 47 47 BOARD QVERLOAD BET 2 RGND CN803 AN STK MUTE 46 2 R709 8702 R703 REAR L REAR R Page 70 1881587 77 1 5K US REAR 9702 28 2605 77 RELAY SWITCH PROTECTOR 1 OVER 1 0 R742 R739 10k 10 lt 32 lt 31 lt 30 lt 29 2
13. Press the REC button When the PAUSE 1 released recording is started When the HI SPEED DUBBING button is pressed during recording the double speed recording is established only when the button is pressed Aging Mode The decks A and B are operated automatically for aging purpose When errors occur during aging causes of errors are displayed and the aging mode is stopped How to enter the aging mode 1 Turn on the main power Install a playback tape to deck A and install a blank tape to deck B 2 Select TAPE A with the button 3 Press the three buttons of and GROUP ENTRY at the same time to enter the aging mode How to exit the aging mode Turn off the main power 1 Rewind the tapes A and B Tapes stop at the shut off of tape A and the aging mode advances to the next step The message TAPE appears 2 The tape Ais played back in the FWD mode After two minutes of the FWD playback the aging mode advances to the next step The message TAPE A AG 2 appears 3 The tape A runs in fast forward After two minutes of fast forward or at the shut off point the tape is stopped and the aging mode advances to the next step The message TAPE A AG 3 appears 4 The tape is played back in the RVS mode After two minutes of the RVS playback the aging mode advances to the next step The message TAPE A AG 4 appears 47 5 tape is rewound and stops at the shut off The aging
14. d displayed AM 9k STEP or 10k STEP HCD MC1 6 4 SCHEMATIC DIAGRAM BD SECTION e See page 71 for Waveforms See page 72 for IC Pin Functions 1 2 3 4 5 6 7 8 9 10 11 12 1 14 15 15 17 18 19 MAIN BOARD MAI AR CN402 CRED Page 58 Page 58 BOARD 102 16 100 470 91 100 9 J oO E 88 215 42 41 0105 OK L DRIVE 010 28 11 0 5 A 16105 1 104 _ N n 922 E aN 424 9 C164 10 BIGITAL SIGNAL I k PROCESSOR 2207 R 2 4 FOCUS TRACKING 2 54 SLE SERVO 41 5 16102 LC78622E 110 C106 108 0 15 2 16101 LA9240M i F o EEAS 6 38 7 2 2 0 1 19 9115 I20K 046 60 1 O ig 4 FOCUS COIL TRACKING COIL 7 Sad G 8132 LIMIT SW R 9101 102 SLED MOTOR FOCUS TRACKING COIL BRIVE SPINSLE SLED MOTOR REGOUT VIN2 10 VG2 vo4 8 SLED MOTOR VREF MUTE 7 14 vec vec 1 r NOTE e Voltages and waveforms are dc with res
15. erformed also when the power cord is plugged in and out Procedure 1 Press the three buttons ISTOP ENTER GROUP 1 at the same time 2 The fluorescent indicator tube turns off for a moment and the RAM is reset to the initial conditions CD Initial CD INITIAL clears all of the CD related data Execute this mode when returning the set to the customer Procedure 1 Press the three buttons STOP ENTER and GROUP 4 at the same time 2 The message STANDBY appears on the fluorescent indicator tube and the CD related data is reset to the initial conditions CD Line Test CD Line test displays the rotating time required for one rotation by rotating the disc tray Procedure 1 Press the three buttons 5 at the same time The CD PLAY LED and the CD PAUSE LED flash alternately and the disc tray starts rotation 2 The message lt lt y y appears on the fluorescent indicator tube The left numbers count up the discs starting from 11051 The left numbers y y indicate the rotating time required for one rotation by rotating the disc tray 3 To exit the CD LINE test mode execute the MC Hot Reset CD Memo All Clear mode clears all contents of the CD disc memo Execute this mode when returning the set to the customer Procedure 1 Press the two buttons INPUT and FLASH at the same time 2 The message ALL ERASE appear
16. ing order because the skipped cannot be performed if the checks are not performed in the given order 1 EQ Check Mode The GEQ becomes maximum when the JOG dial is turned clockwise The GEQ becomes minimum when the JOG dial is turned counter clockwise The GEQ comes to center when the button is pressed 16 2 VOLUME Check Mode The maximum volume is set and the VOLUME display and the GEQ display are displayed for a moment regardless of the amount of volume rotation The minimum volume is set and the VOLUME MIN display and the GEQ display are displayed for a moment regardless of the amount of volume rotation 3 Deck Check Mode Install a tape to the deck B Select TAPE B with the FUNCTION button Recording starts and PAUSE is released when the REC button 15 pressed VIDEO is selected by the input FUNCTION Press the STOP button to stop recording and select TAPE B with the button Rewind the tape by pressing the REW button and stop at the recording start point Start playback from the recording start point 4 High Speed Check Mode 1 Install a tape to the deck A Select TAPE A with FUNCTION button Press the PLAY button then press the button during playback The normal playback is obtained during normal speed playback and the double speed playback is obtained during the double speed playback 5 High Speed Check Mode 2 Install a tape to the deck Select TAPE with FUNCTION button
17. other keys are pressed one after another the key count increases up to 43 The keys which have already been pressed are not counted 8 The value after J indicates the number of clicks that the JOG dial is rotated The clockwise rotation increases the count value The counter clockwise rotation decreases the count value 9 The value after V also indicates amount of rotation of volume control The clockwise rotation increases the count value The counter clockwise rotation decreases the count value 10 To exit the GC test mode and to return to the STANDBY mode press the STOP ENTER buttons again 11 GROUP 3 test mode You can enter this mode directly from step 2 When you performed steps 3 perform steps 4 then 1 and 2 before starting the step 5 GROUP 3 test mode From the GC test mode press the GROUP 3 button to enter the VACS attenuation check mode The display VOL NORMAL appears 12 To exit the GC test mode and to return to the STANDBY mode press the STOP and GROUP 2 buttons again MC Test Mode This mode checks operation of amplifier and cassette deck How to enter the MC test mode Press the three buttons of STOP and EQ CHECK display on the FL tube and the VOLUME display flash In addition the LEDs of the JOG dial and REW flash indicating the MC test mode Check procedure You can perform any of the following five steps However it is recommended to perform them in the follow
18. pect to ground under no signal conditions no mark The components identified by mark A or dotted line with mark A are critical for safety Replace only with part number specified 61 38 HCD MC1 6 6 SCHEMATIC DIAGRAM MOTOR SECTION 1 2 3 4 5 6 7 8 9 10 11 12 1 0 ISC SENSOR DDOR SW BOARD BOARD BOWN SW 4 2 K _ _ H E MOTOR BOARD LOSING CN52 TABLE SENSOR BOARD MAIN CN461 Page 57 M 2 TABLE MAIN 455 57 MAIN CN451 Page 57 F G NOTE Voltages and waveforms dc with respect to ground H under no signal conditions mark CD 1 42 n 6 8 SCHEMATIC DIAGRAM AUDIO SECTION A A BECK HP 101 PLAYBACK 2 AUDIO BOARD 611 See page 80 for IC Block Diagrams 3 4 5 7 8 9 10 11 16611 2 2 e Voltages and waveforms are dc with respect to ground PC4570C 1 R611 A BECK a 0 0 under 10 510101 conditions 0 5 8 C313 gt me ie no mark P AY e 0 7 A BECK gt 514 130k PB LEVEL L coi 3 8312 10 2 2k 1 16 BECK HRPE101 RECORB PLAYBACK ERASE HEAD L CH R CH C411 390p R411 120k
19. s on the fluorescent indicator tube and the CD disc memo is all cleared GC Test Mode This mode checks microprocessor version number keys fluorescent tubes LEDs and VACS Variable Attenuation Control System Procedure 1 Press the three buttons STOP and at the same time The HCD MC1 enters the GC test mode and all of the fluorescent tubes and LEDs turn on 2 From this state any one of the three modes GROUP 1 GROUP 2 and GROUP 3 can be selected Go to step 3 to enter the GROUP 1 test mode Go to step 5 to enter the GROUP 2 test mode Go to step 11 to enter the GROUP 3 test mode 3 GROUP 1 test mode From the state of step 2 press the GROUP 1 button Every pressing of the button advances the following check modes and displays in the given order Model name display destination display MC version display GC version display DC version display VC version display and CC version display 4 To exit the GC test mode and to return to the STANDBY mode press the STOP and GROUP 2 buttons again 5 GROUP 2 test mode You can enter this mode directly from step 2 When you performed steps 3 perform steps 4 then 1 and 2 before starting the step 5 GROUP 2 test mode From the GC test mode press the button to enter the key check mode The display K 1 J 0 V appears 6 The value after K indicates the number of times that the key is pressed 1 is displayed because the button has already been pressed 7 When
20. tions TO 6 5 Page 61 no 53 ECK A 54 HCD MC1 HCD MC1 6 13 SCHEMATIC DIARGAM MAIN 2 5 SECTION e See page 51 for Printed Wiring Board See page 71 for Waveforms See page 77 for IC Pin Functions 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 5 lt 5 100 68 R541 100 67 R540 100 66 TO 1 5 Page 53 54 lt 10 lt pa F y R54 MAIN CONTROL 2 re e gt 2 81 Sz 5 5 lt 11 82 87 CAP M H L 9 56 RV301 83 94 B TRG 3 LEVEL L Bt 94 A TRG CB BATA 59 94 CB POWER 94 2 COM CLK lt 4 TC MUTE COM BOUT 50 gt Te lt 3 TEER R P PASS COM BIN 51 gt lt 2 88 94 NR ON OFF PL LATCH 52 gt Page 53 90 5 0 lt 90 PL VOL 502 2 4 16501 a era 4 CLK OUT vss il 32 4 BIAS D I 22 33 94 EQ H N SUPERWOOFER MOBE 38 9 e301 SUPERWOOFER ON OFF 37 12215 95 000 5 A PLAY SW 39 BOUT ON OFF 36 97 100 _ BECK PROCESS 5 99 R566 1000 fag ALL lt lt a r gt n CN301 fp gt gt gt lt 2 bE SP 100 STK Nz lt lt i EO 2
21. tputs VIDEO MD OUT phono jack voltage 250mV impedance 1kQ PHONES stereo phone jacks accepts headphones of 8Q or more SPEAKER accepts impedance of 8 to 160 REAR SPEAKER accepts impedance of 16Q SUPER WOOFER Voltage 1V impedance 1kQ CD player section System Compact disc and digital audio system Laser Semiconductor laser A 780mm Emission duration Tape player section Recording system 4 track 2 channel stereo Frequency response DOLBY NR OFF 40 13 000Hz 3dB using Sony TYPE I cassette 40 14 000Hz 3dB using Sony TYPE II cassette Tuner section FM stereo FM AM superheterodyne tuner FM tuner section Tuning range 87 5 108 0MHz Antenna FM lead antenna Antenna terminals 75Q unbalanced Intermediate frequency 10 7MHz Continued on next page MINI HI FI COMPONENT SYSTEM 9 928 899 12 Sony Corporation 2001J1600 1 Home Audio Company 2001 10 Published by Sony Engineering Corporation SECTION 3 TEST MODE MC Cold Reset cold reset clears all data including preset data stored in the RAM to initial conditions Execute this mode when returning the set to the customer Procedure 1 Press the three buttons STOP and at the same time 2 The fluorescent indicator tube turns off for a moment and the RAM is reset to the initial conditions MC Hot Reset This mode resets the set with the preset data kept stored in the memory This hot reset mode 1 p
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