Casio_SA-65_Service_Manual电路图.pdf

《Casio_SA-65_Service_Manual电路图.pdf》由会员分享，可在线阅读，更多相关《Casio_SA-65_Service_Manual电路图.pdf（14页珍藏版）》请在收音机爱好者资料库上搜索。

1、SA-65 SA-65 ON OFF POWER VOLUME START/STOPMELODY OFF TEMPO TONE PATTERN SONG BANK 789 456 1 0 23 MUSICAL INFORMATION SYSTEM VOLUME TEMPO TONE PATTERN SONG BANK 10 SONG BANK ELECTRONIC KEYBOARD RadioFans.CN 收音机爱 好者资料库 CONTENTS Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2、 . . . . . . . . . . . . 1 Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Circuit Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3、 . . . . . . . . . . 5 Printed Circuit Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Schematic Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Exploded View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4、. . . . . . . 9 Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 RadioFans.CN 收音机爱 好者资料库 1 C#3 C3D3E3F3G3A3B3C4D4E4F4G4A4B4C5D5E5F5G5A5B5C6 D#3F#3 G#3 A#3C#4 D#4F#4 G#4 A#4C#5 D#5F#5 G#5 A#5 ELECTRICAL Current drain with 7.5 V DC: No sound output33 mA 2

5、0 % Maximum volume230 mA 20 % with keys G3, A#3, B3 and C4 pressed in Car Horn tone, Volume: Maximum Speaker output level1060 mV 20 % with key C2 pressed in Street Organ tone Volume: Maximum Minimum operating voltage: 5.5 V SPECIFICATIONS GENERAL Keyboard:37 keys, 3 octaves (mini-size) Polyphony:4 n

6、otes maximum Tones:100 Patterns:30 (RHYTHM, FREE SESSION, FUNNY) Song band:10 tunes; melody off Tuning:Fixed; A4 = approx. 442 Hz Speakers:Two; 8.0cm (output: 0.5 W + 0.5 W) Input terminals:AC adaptor (7.5 V DC) Power supply:Two-way Five AA-size batteries Battery Life: Approximately six hours on R6P

7、 (SUM-3) manganese batteries AC Adaptor (AD-1) Power consumption:7.5 V 2.3 W Dimensions (HWD):74 650 211 mm (2-15/16 25-5/8 8-5/16 inches) Weight:Approximately 1.6 kg (3.53 lbs) (without batteries) Nomenclature of Keys RadioFans.CN 收音机爱 好者资料库 2 KI0KI1KI2KI3KI4 KI5KI6 KI7 KO0C3 C#3D3 D#3E3 KO1F3 F#3

8、G3G#3A3A#3B3C4 KO2C#4 D4D#4 E4F4 F#4G4G#4 KO3A4A#4 B4C5C#5D5D#5E5 KO4 F5F#5G5G#5 A5 A#5B5C6 KO5 0 1 234 Tempo Melody UpOff KO65 6789 Volume Tempo UpDown KO7 Song Pattern Tone Start/Volume BankStopDown BLOCK DIAGRAM CIRCUIT DESCRIPTION Key Matrix KO0 KO7 KI0 KI7 Keyboard Switches Oscillator Q102, X10

9、1 CPU MSM6387B-A28 LSI101 Amplifier AN8053N IC101 Speaker VDD KO8 KO11 COM1, COM2 Q101 Filter S1 S14 S18 S20 S31 S46 OUT LCD Driver KS0035 IC102 LCD 3 LCD Driver (IC102 : KS0035) The KS0035 is an LCD driver for a segment type LCD, and it can drive up to 53 segments. The following table shows the pin

10、 functions of IC102. Pin No.TerminalIn/OutFunction 1, 2TEST1, TEST2Not used. Connected to ground. 3RESETInPower ON reset terminal. On: +5 V Off: 0 V 4AVDDIn+5 V source for the built-in DAC 5OUTOutSound waveform output 6AGNDInGround (0 V) source for the built-in DAC 7GNDInGround (0 V) source 8COSIIn2

11、1.725 MHz clock pulse input 9COSONot used 10VDDIn+5 V source 11 18KI0 KI7InInput terminals from keys and switches 19KO11OutDisplay data output 20 KO10OutBit clock output 21 KO9OutChip enable signal for the LCD driver 22 KO8OutDisplay blanking output 23 30KO7 KO0OutKey scan signal outputs CPU (LSI101

12、: MSM6387B-A28) Containing a sound data ROM and a DAC (Digital to Analog Convertor), the CPU provides sound waveform in accodance with the pressed key and the selected tone. The following table shows the pin functions of LSI101. Pin No.TerminalIn/OutFunction 1 14S1 S14OutSegment output 15 17S15 S17N

13、ot used 18 20S18 S20OutSegment output 21 30S21 S29Not used 31 47S30 S46OutSegment output 36S35 Not used 48 54S47 S53Not used 55OSCInTerminal for the internal clock generator 56VDDIn+5 V source 57INHInDisplay blanking input 58VLCDIn+5 V source for the internal driver 59VSSInGround (0 V) source 60CEIn

14、Chip enable input 61CLKInBit clock input 62 DATAInDisplay data input 63, 64 COM1, COM2OutCommon out put 4 Amplifier/Voltage Regulator (IC101: AN8053N) The right figure shows the internal block of IC101. 169 SP AMP + VREF 5V REG POWER 13456782 151413121110 VCCNCCONT 5 V VREGNCNCNC PRE GND SPONC SP GN

15、D PC-1PC-2SPISPMVREF Filter Block Since the sound signal from the CPU is a stepped waveform, the filter block is added to smooth the waveform. AVDD To power amp. From CPU AGAG Q101 2SC1740SR C106R105 R104 C108 R106 5 WAVEFORMS 1 Main clock COSI MSM6387B-A28 pin 8 1 2 Key scan signal KO0 MSM6387B-A28

16、 pin 30 3 Key scan signal KO1 MSM6387B-A28 pin 29 2 3 4 Sound waveform MSM6387B-A28 pin 5 4 5 6 Chip enable signal KO9 (CE) MSM 6387B-A28 pin 21 7 Clock for LCD driver KO10 (CLK) MAM6387B-A28 pin 20 6 7 8 Display data KO11 (DATA) MSM6387B-A28 pin 19 8 5 Clock for LCD driver KS0035 pin 55 Tone : Flut

17、e (No. 23) Volume : 5 (Max.) 6 PRINTED CIRCUIT BOARD Main PCB JCM548-MA1M 14325678 7 Main PCB JCM548-MA1M SCHEMATIC DIAGRAMS 1 4 3 2 5 6 7 8 8 Keyboard PCB JCM548-KY1M 9 EXPLODED VIEW 3 R-1 10 4 11 14 8 9 12 13 1 2 R-2 7 15 6 5 10 Notes:This parts list does not include the cosmetic parts, which part

18、s are marked with item No. R-X in the exploded view. Contact our spare parts department if you need these parts for refurbish. 1.Prices and specifications are subject to change with- out prior notice. 2.As for spare parts order and supply, refer to the GUIDEBOOK for Spare parts Supply, published sep

19、erately. 3.The numbers in item column correspond to the same numbers in drawing. PARTS LIST SA-65 ItemCode No.Parts NameSpecificationQR Electrical Parts 16926 1200PCB/ASSY (MA1M)M140578*11 B LSI12012 5610LSI/MC (CPU)MSM6387B-A281 A IC1012114 3269IC/LINEAR (AMP)AN8053N1 A IC1022114 5793IC/MOS (LCD DR

20、IVER)KS00351 A Q1012220 1409TRANSISTOR2SC1740SR-TP-T1 B Q1022220 1387TRANSISTOR2SC1740SQ-TP-T1 B D1012390 3018DIODE1T21 B D1022390 1323DIODERB100A-T32-T1 B D1032310 7848DIODE/ZENERRD4.3ESB2-T1-T1 B D104-D1112390 1344DIODE1SS133T-77-T8 B LED1012370 1383LEDTLR124(TPJ56,KT)1 B X1012590 1897OSCILLATOR/C

21、ERAMICEFO-EN2175C41 B J1013501 3731JACK/POWERHEC2305-01-2501 A 26926 1230PCB/ASSY (KY)M140580*11 B D201-D2372390 1344DIODE1SS133T-77-T37 B Mechanical Parts 36926 1000PANEL/DISPLAYM340626-11 C 46921 5031KNOBM311856A-11 B 56926 1290KEY SET/BLACKM140541-11 A 66926 1280KEY SET/WHITEM140540-11 A 76926 12

22、10COVER/BATTERYM340646*11 B 86926 1300RUBBER/INTERCONNECTORM440442-22 B 93335 6569LCDCG161-TS(A)1 B 103831 1076SPEAKER300RB3262 B 116926 1030RUBBER/BUTTONM240595-11 B 126926 1020RUBBER/BUTTONM240596-11 B 136926 1010RUBBER/BUTTONM240597-11 B 146909 5890SWITCH/SLIDE KONBCSB-12D1 B 156926 1040RUBBER/CONTACTM240594-11 B Notes: Q Quantity per unit R Rank 11 8-11-10, Nishi-Shinjuku Shinjuku-ku, Tokyo 160, Japan Telephone: 03-3347-4926 MA0600571A