Yamaha PortaTone PSR-550 Service Manual Download Page 4 | Manualshive

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PSR-550

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MUSIC DATABASE

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Summary of Contents for PortaTone PSR-550

Page 1: ... PROCEDURE 9 LSI PIN DESCRIPTION 13 IC BLOCK DIAGRAM 18 CIRCUIT BOARDS 19 TEST PROGRAM 28 DATA BACKUP INITIALIZATION 32 ALERT MESSAGE LIST 33 MIDI IMPLEMENTATION CHART 35 OVERALL CIRCUIT DIAGRAM PARTS LIST This document is printed on chlorine free ECF paper with soy ink 1 412K 667 Printed in Japan 01 05 PK 001654 ...

Page 2: ...s in specification are subject to change without notice or obligation to retrofit Should any discrepancy appear to exist please contact the distributor s Service Division WARNING Static discharges can destroy expensive components Discharge any static electricity your body may have accumulated by grounding yourself to the ground bus in the unit heavy gauge black wires connect to this bus IMPORTANT ...

Page 3: ...daptor Power Supply Adaptor Yamaha PA 6 AC power adaptor Rated Voltage DC 10 12V Rated Current 2A Batteries Six D size R20P LR20 or equivalent batteries Dimensions W x D x H 952 x 387 x 169 mm 37 1 2 x 15 1 4 x 6 5 8 Weight 8 7 Kg 19 2 lbs excluding batteries Supplied Accessories Data Disk Music Stand Owner s Manual Optional Accessories Headphones HPE 150 AC Power Adaptor PA 6 Foot Switch FC4 FC5 ...

Page 4: ...SE SONG STYLE VOICE LR12 EASY VIGATOR nd Piano DSP FAST SUSTAIN HARMONY TOUCH 8 9 0 6 7 8 0 9 1 2 2 3 A A C1 CLICK 36 T 37 S 39 F1 41 R G1 43 L D2 50 M E2 52 H 42 44 A1 45 L B1 47 M C2 48 H 51 F2 L 53 G2 H 55 54 56 A2 57 L D3 62 H B2 59 M L C3 60 M H 58 61 C 1 63 R 1 E3 64 F3 65 R 6 D1 38 E1 40 46 49 CHORD dim mM 6 7augsus4 119 513 1 REC 2 REC 3 REC 4 REC 5 REC 6 REC 7 REC 8 REC TRANSPOSE REGIST R...

Page 5: ...ons 5 SONG button 6 STYLE button 7 MUSIC DATABASE button 8 VOICE L button 9 VOICE R1 button 0 VOICE R2 button 1 ACMP ON OFF button 2 ACMP SONG VOLUME button 3 TEMPO TAP button 4 TRANSPOSE button 5 FUNCTION button 6 PART ON OFF VOICE L button VOICE R1 button VOICE R2 button 7 Number buttons 1 0 NO YES 8 EXIT button 9 Data dial 0 DISK LOAD button 1 DISK SAVE button 2 DISK UTILITY button 3 SYNC STOP ...

Page 6: ...0 Speaker Tweeter L W STB W ANA W DMV Speaker Woofer R W PNS W PNL 380 L40 W MID Speaker Tweeter R W PND 350 DM MKS5 MK H MK L Lower case side Upper case side AM 390 W PIT W MVR Caution Be sure to attach the removed filament tape just as it was before removal ...

Page 7: ...Speaker Tw R L 160 V457700 W MID MID AM CN800 DM CN170 1 7P V381870 W ENC ENC PN 2 5 CN602 PN 1 5 CN502 1 3P V381800 W LCD LCD PN 1 5 CN101 DM CN750 1 12P V445890 W MVR MVR PN 4 5 CN801 AM CN390 1 5P V381830 W PIT PIT PN 3 5 CN603 PN 1 5 CN503 1 3P V381810 W PND PND PN 1 5 CN301 DM CN650 1 8P V381880 W PNL PNL PN 1 5 CN501 DM CN550 1 10P V381890 W PNS PNS PN 1 5 CN401 DM CN150 1 11P V381900 W STB ...

Page 8: ...OUTPUT CN480 5 5 4 5 1 5 3 5 2 5 FOOT SWITCH 4 20 22 29 30 52 54 56 60 62 64 61 70 RESET IC190 84 IC 5D 1 10 14 21 23 30 32 42 1 3 8 9 2 12 1 2 3 2 5 6 9 12 15 16 19 3 4 7 8 13 14 17 18 2 15 17 21 18 21 24 28 35 38 2 5 7 10 18 21 24 28 35 38 32 35 47 48 50 51 53 60 61 6 39 46 15 2 IC 22 IC 30 2 5 7 10 18 21 24 27 35 38 40 43 2 11 15 22 24 31 34 44 CN510 MKS5 CN1 5R IC1 44P CPU MK L MK H CN3 CN2 CN...

Page 9: ... Remove the DM circuit board and the shield box U and L See procedure 3 5 3 Remove the eleven 11 screws marked 420B The AM circuit board can then be removed Fig 5 430A Bind Head Tapping Screw P 3 0X12 MFZN2Y EP600300 440A Bind Head Tapping Screw P 3 0X25 MFZN2Y VK228100 Fig 1 2 Spring Terminal Time required About 10 min 2 1 Remove the lower case assembly See procedure 1 2 2 Remove the BAT connecto...

Page 10: ...Head Tapping Screw B 3 0X8 MFZN2Y EP600250 L30 Bind Head Tapping Screw P 4 0X8 MFZN2BL VB931600 Fig 4 420B Bind Head Tapping Screw P 3 0X8 MFZN2Y EP600280 460 Sems Pan Head Screw 3 0X10 MFZN2Y V5115200 Fig 5 420H 450 420A 450 420A 450 L30 440B 430B 450 430B 30 30 440B 420H X2 Keyboard Assembly Speaker Tweeter Speaker Tweeter Speaker Woofer Speaker Woofer Shield Box U L30 MKS5 420B 460 420B 420B 42...

Page 11: ...n be removed Fig 6 PN 5 5 420 Bind Head Tapping Screw P 3 0X8 MFZN2Y EP600280 Fig 6 420D 420D 420D 420E 420D 420D 420C 420D 420F Wheel Assembly 420G PN 4 5 PN 1 5 PN 5 5 Fig 7 Fig 8 6 PN 4 5 Circuit Board Time required About 15 min 6 1 Remove the lower case assembly See procedure 1 6 2 Remove the DM circuit board and the shild box U and L See procedure 3 6 3 Remove the AM circuit board See procedu...

Page 12: ... fifteen 15 hooks A inward and then remove the rubber contact Fig 10 14 4 Remove the twenty one 21 screws marked 140 then remove the black keys from the lower notes Afterwards remove the white keys DFA and C and then remove the white keys CEGB from the higher notes At this time lift the keys from the front and slide them towards you the keys can then be removed from the assembly Fig 11 15 Assembli...

Page 13: ...O I O I O I O I O I O I O I O I O I O I O I O I O I O I O I O I O I O I O Port 3 External interrupt input Capture edge input Port 3 External interrupt input Port2 Asynchronousserialinterfaceserialdatainput Serialinterfaceserialdatainput Port2 Asynchronousserialinterfaceserialdataoutput Serialinterfaceserialdataoutput Port 2 Asynchronous serial interface serial clock input Serial interface serial c...

Page 14: ...lock Port A Timer clock Interrupt request Port A Chip select Chip select Interrupt request Port A Serial clock Data transmission Port A Data reception Interrupt request Port A Data transmission Data reception Data bus Ground Data bus 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 99 100 101 102 103 104 105 106 107 108 1...

Page 15: ...ta bus 40 SMD15 I O Wave memory data bus 124 CMA21 O Program address bus 41 SOE O read signal 125 PDT15 I O SWX access data bus 42 SWE O write signal 126 PDT14 I O SWX access data bus 43 SRAS O RAS signal 127 PDT13 I O SWX access data bus 44 SCAS O CAS signal 128 PDT12 I O SWX access data bus 45 REFRESH O REFRESH signal 129 PDT11 I O SWX access data bus 46 CS0 O CS signal 130 PDT10 I O SWX access ...

Page 16: ...VSS8 MON0 MON1 MON2 MON3 VSS9 NAME Track 00 signal Index signal Read data input from FDD Clock Clock Ground Power supply Write control Writ data to FDD Ground Step signal to control head of FDD Direction Head load Head select Ground Drive select Ground Motor on Ground FUNCTION NAME FUNCTION NAME FUNCTION 1 SC29 O 31 Vcc LCD driver circuit 5V 2 SC28 O 32 CL1 I Data shift 3 SC27 O 33 CL2 I Latch clo...

Page 17: ...r Power supply Data latch clock Data shift clock Power supply 5 V Altamated signal for LCD driver outout Display data interface Read write Enable Data interface Data interface FUNCTION PIN NO 41 42 43 44 45 46 47 48 49 50 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 I O I O I O I O I O I O I O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O ...

Page 18: ...OUTPUTS PR CLR CLK D Q Q L H H L H Q O H L H H L Q O X X X H L X X X X f f L H L L H H H L H L H H H 1 2 3 4 5 6 7 1CLR 1D 1CK 1PR 1Q 1Q GND 14 13 12 11 10 9 8 VCC 2CLR CLR 2D D 2CK CK 2PR PR 2Q 2Q Q Q CLR D CK PR Q Q 1 2 3 4 5 6 7 A B Select Enable Output B C C G2A G2A G2B G2B G1 G1 Y7 Y7 16 15 14 13 12 11 10 Vcc Y0 Y0 Y1 Y1 Y2 Y2 Y3 Output Y3 Y4 Y4 Y5 Y5 8 GND 9 Y6 A Y6 Q D CK OE Q D CK OE Q D C...

Page 19: ... Inverting input 1 Inverting input 1 Output 1 GND 11 12 13 14 15 16 17 18 19 20 IN 1 2 NF 1 2 IN 2 2 NF 2 2 IN 3 2 NF 3 2 R 65k 1 2k 65k 1 2k 65k 1 2k 47k R1 Vret CIRCUIT BOARDS INDEX Note See parts list for details of circuit board conponent parts AM XV935C0 24 DM XZ670D0 20 21 MK H XR565C0 27 MK L XR564C0 26 MKS5 XZ594A0 26 PN 1 5 XV934B0 22 23 PN 2 5 XV934B0 24 PN 3 5 XV934B0 24 PN 4 5 XV934B0 ...

Page 20: ...DS DM Circuit Board Component side to AM CN800 to AM CN530 to AM CN100 to MKS5 CN1 to PN 1 5 CN101 to PN 1 5 CN102 to FDD Ass y to FDD Ass y to Back Light Ass y to PN 1 5 CN401 to PN 1 5 CN501 to PN 1 5 CN301 2NA V701940 1 1 ...

Page 21: ...PSR 550 21 DM Circuit Board Pattern side 2NA V701940 2 1 ...

Page 22: ...PSR 550 22 PN 1 5 Circuit Board Component side 2NA V701960 1 t to DM CN650 to PN 2 5 CN602 to DM CN750 to DM CN960 to PN 3 5 CN603 to DM CN550 to DM CN150 A A A A ...

Page 23: ...PSR 550 23 PN 1 5 Circuit Board Pattern side 2NA V701960 2 B B B B ...

Page 24: ... PN 3 5 Circuit Board Component side Component side to PN 1 5 CN502 to PN 1 5 CN503 PITCH BEND Component side FOOT SWITCH MIDI HOST SELECT TO HOST to DM CN170 to SPEAKER Wo 1999 IN OUT to SPEAKER Tw R C C AM 2NA V362300 1 PN 2 5 PN 3 5 2NA V701960 1 ...

Page 25: ...N520 STANDBY ON Component side DC IN 10 12V PHONES OUTPUT to DM CN250 to PN 4 5 CN801 to DM CN920 to PN 5 5 CN701 to BATTERY to SPEAKER Tw L C C PN 4 5 Circuit Board PN 5 5 Circuit Board Component side Component side AM 2NA V362300 1 PN 4 5 PN 5 5 2NA V701960 1 ...

Page 26: ...PSR 550 26 MK L Circuit Board MKS5 Circuit Board to MK H to MK H to DM CN180 Component side Component side D D E E D D E E MK L 2NA VV58380 MKS5 2NAKZ V679750 1 ...

Page 27: ...PSR 550 27 MK H Circuit Board Component side 2NA VV583900 to MKS5 CN4 to MK L F F G G F F G G ...

Page 28: ...ROM The test results appear on the LCD 3 003 Ram Chk1 Checks all the RAMs that are connected to the CPU The test results appear on the LCD 4 004 WaveRomChk1 Checks the WAVE ROMs that are connected to the CPU The test results appear on the LCD 7 007 FDD Chk Insert the floppy disks one by one 2DD and 2HD Checks the floppy disk drive unit 9 009 Eff1Ram Chk Checks the effect RAM1 Check by hearing that...

Page 29: ...ote is output when pressing and releasing the pedal and the C4 note is output when pressing the pedal again 34 034 PBWheel Chk Check that the C3 note is output when rotating the PITCH BEND wheel to minimum and the C4 note is output when rotating it to maximum 38 038 Midi Chk After connecting the MIDI IN jack and MIDI OUT jack with a MIDI cable execute the test Set the HOST SELECT switch to MIDI Ch...

Page 30: ...ush Direct Acces G3 9 VOICE CHANGE Push Voice Change G 3 10 MIXER Push Mixer A3 11 Track 1 Push Track 1 A 3 12 Track 2 Push Track 2 B3 13 Track 3 Push Track 3 C4 14 Track 4 Push Track 4 C 4 15 Track 5 Push Track 5 D4 16 Track 6 Push Track 6 D 4 17 Track 7 Push Track 7 E4 18 Track 8 Push Track 8 F4 19 Track 9 Push Track 9 F 4 20 Track 10 Push Track 10 G4 21 Track 11 Push Track 11 G 4 22 Track 12 Pu...

Page 31: ...ice R1 F4 55 PART ON OFF VOICE R2 Push Part Voice R2 F 4 56 LOAD Push Load G4 57 SAVE Push Save G 4 58 UTILITY Push Utility A4 59 SYNC STOP Push Sync Stop A 4 60 SYNC START Push Sync Start B4 61 START STOP Push Start Stop C5 62 INTRO Push Intro C 5 63 MAIN A Push Main A D5 64 MAIN B Push Main B D 5 65 ENDING Push Ending E5 66 ONE TOUCH SETTING Push OTS F5 67 MEMORY Push Memory F 5 68 REGIST 1 Push...

Page 32: ...otswitch Function Polarity Touch on off Sensitivity Multi Pad setting Master Tuning Metronome on off All data listed above will be lost if the power is interrupted in other words if the power is turned off theAC adaptor is disconnected and the batteries are removed When this happens the next time you turn on the PSR 550 a Clear Backup message appears in the display the Data Initialization operatio...

Page 33: ...ot possible There is no floppy disk inserted into the disk drive Insert a disk This message appears when you press the SONG button without a disk in the disk drive An error occured because the disk was removed during a disk opera tion Never remove a disk during a disk operation since this could damage both the disk and the drive The disk s memory capacity is full and no additional data can be re c...

Page 34: ...Style Pad recording The MIDI function cannot be set during recording playback and disk operations Harmony cannot be turned on during Style Pad recording DSP cannot be turned on during Style Pad recording This message appears to indicate you cannot enter the function when you select a Multi Pad function in the Multi Pad Recording mode This message may appear when the PSR 550 is turned on and indica...

Page 35: ...Bank Select 1 5 11 x o 7 10 o o 6 38 o o Data Entry Control 64 66 67 o o 65 x o Portamento Change 72 o o Sound Controller 71 73 74 x o Sound Controller 84 x o Portament Cntrl 91 93 94 o o Effect SendLevel 96 97 x o Data Inc Dec 98 99 x o NRPN LSB MSB 100 101 o o RPN LSB MSB Prog o 0 127 o 0 127 Change True System Exclusive o o Song Pos x x Common Song Sel x x Tune x x System Clock o o Real Time Co...

Page 36: ...zero The second letter of the shaded part number is I not one M South African model O Chinese model Q South east Asia model T Taiwan model U U S A model V General export model 110V W General export model 220 N X General export model Y Export model A Australian model B British model C Canadian model D German model E European model F French model H North European model I Indonesian model J Japanese ...

Page 37: ...40 F60 F50 F20 F10 F50 F30 460 330 330a 330b L20 L10f L10c L80 430 L60 L90 L90 L70 L50 320 L140 L130 L130 L130 340 L10b L10g L100 L10f L10c L10 L10a L10e L10d L90 L90 L40 L90 L30 L20 L30 190 470 470 390 180 200 L60 F40 420 300 430 450 310 360 250 420 350 290 240 440 270 2 5 4 5 220 5 5 1 5 3 5 Music Rest Floppy Disk Drive Assembly Upper Case Assembly Wheel Assembly Lower Case with Speaker Battery ...

Page 38: ...Floppy Disk Drive Assembly V704320 250 Shield Box LOWER V375850 260 Circuit Board DM 270 Keyboard Assembly 16M C61 P2M MKS5 280 Knob RED STANDBY ON 03 290 Knob BLACK MASTER VOLUME 01 300 LCD Panel 310 Encoder Knob IVORY DATA Dial 02 320 Lower Case with Speaker V703900 330 Battery Cover Assembly PT 330a Battery Cushion WHITE V710060 3 330b Nonworen Fabric Cloth 10X70X0 5 V781030 2 340 Label FE V703...

Page 39: ... 2 06 L30 Bind Head Tapping Screw P 4 0X8 MFZN2BL 8 01 L40 Connector Assembly SPW XH 4P V381950 L50 Connector Assembly BAT XH 2P V705790 L60 Spring Terminal 5 L70 Spring Terminal L80 Spring Terminal L90 Adhesive Tape 12X50 11 03 L100 Vibration proof Tape 18X25 4 03 L130 Nonworen Fabric Cloth 40X13X0 5 V771130 6 L140 Nonworen Fabric Cloth 13X13X0 5 V771140 ACCESSORIES Music Rest 07 Floppy Disk 3 5i...

Page 40: ... Screw P 3 0X16 MFZN2BL 21 01 140 Bind Head Tapping Screw P 3 0X16 MFZN2B 21 01 150 Grease G 31KA 50g 10 160 Circuit Board Assembly MKS5 TY KBD SW V712720 170 Nonworen Fabric Cloth 40X13X0 5 V771130 Circuit Board Assembly MKS5 TY KBD SW V712720 S1 Circuit Board MK L 09 S2 Circuit Board MK H 09 S3 Circuit Board MKS5 S4 Cable MK A 12P 03 S5 Cable MK B 12P 03 S6 Cable MK C 7P 03 S7 Cable MK D 5P 03 S...

Page 41: ...c Cap 100 00 25 0V 01 C0402 Semiconductive Cera Cap 0 1000 25V Z 01 C0403 Electrolytic Cap 0 47 50 0V 01 C0404 Electrolytic Cap 33 00 10 0V 01 C0405 Electrolytic Cap 100 00 10 0V 01 C0411 Monolithic Ceramic Cap 1 000 25V Z 01 C0411 Monolithic Ceramic Cap 1 000 25V Z 01 C0412 Ceramic Capacitor B 470P 50V K 01 C0421 Monolithic Ceramic Cap 1 000 25V Z 01 C0421 Monolithic Ceramic Cap 1 000 25V Z 01 C0...

Page 42: ...NT 20uH 01 L0491 Choke Coil R 5C 20U 20uH 01 L0491 Choke Coil R 5C 20U 20uH 01 L0611 Coil FL5R200QNT 20uH 01 L0611 Choke Coil R 5C 20U 20uH 01 L0611 Choke Coil R 5C 20U 20uH 01 L0612 Coil FL5R200QNT 20uH 01 L0612 Choke Coil R 5C 20U 20uH 01 L0612 Choke Coil R 5C 20U 20uH 01 L0621 Coil FL5R200QNT 20uH 01 L0621 Choke Coil R 5C 20U 20uH 01 L0621 Choke Coil R 5C 20U 20uH 01 L0622 Coil FL5R200QNT 20uH ...

Page 43: ...0 1 4 J 01 R0612 Carbon Resistor 1 0K 1 4 J 01 R0621 Carbon Resistor 220 0 1 4 J 01 R0622 Carbon Resistor 220 0 1 4 J 01 R0623 Carbon Resistor 1 5K 1 4 J 01 R0624 Carbon Resistor 22 0K 1 4 J 01 R0625 Carbon Resistor 22 0K 1 4 J 01 R0626 Carbon Resistor 10 0K 1 4 J 01 R0701 Carbon Resistor 10 0K 1 4 J 01 R0702 Carbon Resistor 10 0K 1 4 J 01 R0703 Carbon Resistor 220 0 1 4 J 01 R0704 Carbon Resistor...

Page 44: ...1 C0287 Mylar Capacitor 0 0220 50V J 01 C0291 Electrolytic Cap 100 00 10 0V 01 C0292 Semiconductive Cera Cap 0 1000 25V Z 01 C0293 Electrolytic Cap 100 00 10 0V 01 C0301 Semiconductive Cera Cap 0 1000 25V Z 01 C0302 Electrolytic Cap 10 00 16 0V 01 C0311 Semiconductive Cera Cap 0 1000 25V Z 01 C0331 Semiconductive Cera Cap 0 1000 25V Z 01 C0351 Semiconductive Cera Cap 0 1000 25V Z 01 C0361 Semicond...

Page 45: ...0 IC TC74HC138AP DECODER 02 IC350 IC SN74HC138N 05 IC360 IC TC74HC32AP OR 03 IC360 IC SN74HC32N 03 IC500 IC TC74HC374AP D FF 06 IC500 IC SN74HC374N 06 IC600 IC TC74HC138AP DECODER 02 IC600 IC SN74HC138N 05 IC700 IC TC74HC374AP D FF 06 IC700 IC SN74HC374N 06 IC800 IC HD63266F FDC 09 IC900 IC M5291P DC DC CONVERTER 03 IC910 IC S 81250SGY Z REGULATOR 5V 02 IC999 IC TC74HC74AP D FF 04 IC999 IC SN74HC7...

Page 46: ...1 Carbon Resistor 220 0 1 4 J 01 0720 Carbon Resistor 220 0 1 4 J 01 R0801 Carbon Resistor 10 0K 1 4 J 01 R0851 Carbon Resistor 1 0K 1 4 J 01 0855 Carbon Resistor 1 0K 1 4 J 01 R0901 Metal Oxide Film Resistor 0 22 1W J 01 R0902 Carbon Resistor 1 2K 1 4 J 01 R0903 Carbon Resistor 3 9K 1 4 J 01 R0904 Metal Oxide Film Resistor 100 0 1W J 01 R0905 Carbon Resistor 330 0 1 4 J 01 R0911 Carbon Resistor 1...

Page 47: ...e Cera Cap 0 1000 25V Z 01 C0200 Semiconductive Cera Cap 0 1000 25V Z 01 CA201 Ceramic Capacitor Array 100P 50V M 01 CA202 Ceramic Capacitor Array 100P 50V M 01 CN101 Cable Holder 51048 12P TE 01 CN102 Base Post Connector XH 2P TE 01 CN301 Cable Holder 51048 8P TE 01 CN401 Cable Holder 51048 11P TE 01 CN501 Cable Holder 51048 10P TE 01 CN502 Wire Trap 52147 3P TE 01 CN503 Wire Trap 52147 3P TE 01 ...

Page 48: ...stor Array RGLE5V222J 01 RE602 Encoder REB161 PVB 15F DATA Dial 03 Z SW700 Push Switch SDDLB1 J UC CEE STANDBY ON 03 VR603 Rotary Variable Resistor B10K EVJ05DF25B14 PITCH BEND 03 VR800 Rotary Variable Resistor A10 0K XV0141GPVN2 MASTER VOLUME 02 W ENC Connector Assembly ENC 3P V381800 W LCD Connector Assembly LCD 12P V445890 W MVR Connector Assembly MVR 5P V381830 W PIT Connector Assembly PIT 3P ...

Page 49: ...1 to AM CN530 to PN 1 5 CN102 DM to AM CN100 FDD CPU SRAM 1M DRAM 4M MAIN ROM 32M D FF OR DECODER D FF DECODER D FF FDC WAVE ROM 64M DAC SWX00B DRAM 4M REGULATOR 3 3V REGULATOR 5V DC DC CONVERTER SYSTEM RESET REGULATOR 5V 28CC1 8819393 1 Mylar Capacitor Ceramic Capacitor Semiconductive Ceramic Capacitor Metal Oxide Film Resistor Note See parts list for details of circuit board component parts ...

Page 50: ...talled LCD DRIVER LCD DRIVER HPF EQUALIZER AMP POWER AMP PHOTO CAUPLER HOST I F LINE TRANSCEIVE INVERTER REGULATOR 6V CPU PN 28CC1 8819394 AM 28CC1 8813690 MK H 28CC1 8812655 MK L 28CC1 8812655 REGULATOR 6V AN78L06 XE924A00 2 1 3 3 OUTPUT 2 GND 1 INPUT REGULATOR 5V S81250SGY Z XT625A00 2 1 3 3 OUTPUT 2 INPUT 1 GND REGULATOR 3 3V µPC29M33HF XT333A00 1 2 3 3 OUTPUT 2 COMMON 1 INPUT Mylar Capacitor C...

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