MIDI DATA FORMAT ......................................................................... 47/53
PARTS LIST
PANEL SWITCH TABLE
OVERALL CIRCUIT DIAGRAM
SY 011446
19981201-99800
HAMAMATSU,JAPAN
1.92K-*** I Printed in Japan’98.12
RM1x
IMPORTANT NOTICE
This manual has been provided for the use of authorized Yamaha Retailers and their service personnel. It has been assumed that
basic service procedures inherent to the industry, and more specifically Yamaha Products, are already known and understood by
the users, and have therefore not been restated.
WARNING:Failure to follow appropriate service and safety procedures when servicing this product may result in
personal injury, destruction of expensive components and failure of the product to per form as specified.
For these reasons, we advise all Yamaha product owners that all service required should be performed by
an authorized Yamaha Retailer or the appointed service representative.
IMPORTANT:This presentation or sale of this manual to any individual or firm does not constitute authorization, certifica-
tion, recognition of any applicable technical capabilities, or establish a principal-agent relationship of any
form.
The data provided is believed to be accurate and applicable to the unit(s) indicated on the cover. The research engineering, and
service departments of Yamaha are continually striving to improve Yamaha products. Modifications are, therefor, inevitable and
changes 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 you body may have
accumulated by grounding yourself to the ground buss in the unit (heavy gauge black wires connect to this
buss).
IMPORTANT:Turn the unit OFF during disassembly and parts replacement. Recheck all work before you apply power to
the unit.
WARNING: CHEMICAL CONTENT NOTICE!
The solder used in the production of this product contains LEAD. In addition, other electrical / electronic and / or plastic (where
applicable) components may also contain traces of chemicals found by the California Health and Welfare Agency (and possibly
other entities) to cause cancer and / or birth defects or other reproductive harm.
DO NOT PLACE SOLDER, ELECTRICAL / ELECTRONIC OR PLASTIC COMPONENTS IN YOUR MOUTH FOR ANY REASON
WHAT SO EVER!
Avoid prolonged, unprotected contact between solder and your skin! When soldering, do not inhale solder fumes or expose eyes to
solder / flux vapor!
If you come in contact with solder or components located inside the enclosure of this product, wash your hands before handling
food.
LUTHIUM BATTERY HANDLING
This product uses a lithium battery for memory back-up.
WARNING:Lithium batteries are dangerous because they can be exploded by improper handling. Observe the follow-
● Leave lithium battery replacement to qualified service personnel.
● Always replace with batteries of the same type.
● When installing on the PC board by soldering, solder using the connection terminals provided on the battery cells.
Never solder directly to the cells. perform the soldering as quickly as possible.
● Never reverse the battery polarities when installing.
● Do not short the batteries.
● Do not attempt to recharge these batteries.
● Do not disassemble the batteries.
● Never heat batteries or throw them into fire.
ADVARSEL!
Lithiumbatteri—Eksplosionsfare ved fejlagtig håndtering. Udskiftning må kun ske med batteri af samme fabrikat og type. Levér
det brugte batteri tilbage til leverandoren.
VARNING
Explosionsfara vid felaktigt batteribyte. Använd samma batterityp eller en ekvivalent typ som rekommenderas av
apparattillverkaren. Kassera använt batteri enlight fabrikantens instruktion.
VAROITUS
Paristo voi räjähtää, jos se on virheellisesti asennettu. Vaihda paristo ainoastaan laitevalmistajan suosittelemaan tyyppiin. Hävitä
käytetty paristo valmistajan ohjeiden mukaisesti.
The following information complies with Dutch Official Gazette 1995. 45; ESSENTIALS OF ORDER ON THE COLLECTION OF
BATTERIES.
・Please refer to the diassembly procedure for the removal of Back-up Battery.
・Leest u voor het verwijderen van de backup batterij deze beschrijving.
WARNING
Components having special characteristics are marked and must be replaced with parts having specification equal to those originally
installed.
ing precautions when handling or replacing lithium batteries.
Sequencer block
Data capacityapproximately 110,000 notes
Note resolution480 clocks per quarter note
Polyphony64 notes
BPM (Tempo)25.0 - 300.0
Recording methodRealtime Recording(Replace)
TracksPattern : 16 tracks
Patterns960 preset patterns (60 styles x 16 sections)
PhrasesOver 7,000 preset phrases
Pattern Chain20 chains
Songs20 user songs
EditPhrase edit
REC(red)
PLAY(green)
TRACK (x 16) (red)
KEYBOARD MODE - MUTE (red), SECTION (red),
ARPEGGIO ON (red)
FUNCTION BUTTON (red x 4)
KNOB A/B (red)
MIDI IN (red), MIDI OUT (green)
7 segments LED (x 4)
ConnectorsPHONES (stereo phone jack)
OUTPUT (phone jack x 2) (L/MONO, R)
FOOT SW
DC IN
MIDI IN, MIDI OUT
Floppy disk drive3.5 inch 2HD (MF2HD) and 2DD (MF2DD) types
Power supplyAC adaptor (PA-5C)
Dimensions420 mm (W) x 282 mm (D) x 98 mm (H)
Weight4.4kg
Included itemsPower adaptor (PA-5C)
Floppy disk (Demo song)
Owner’s manual
* Specifications and appearance are subject to change without notice for
improvement of the product.
4
PANEL LAYOUT
● Front Panel
RM1x
23
1
6
13
17
16
16
4
5
15
1. BPM Display
2. MIDI Data Monitors
3. LCD Display
4. Display Knobs
5. Function Buttons and Indicators
6. VOLUME Control
7. Real Time Controller Knobs & [KNOB] Button
8. Cursor Buttons
9. [NO -1] and [YES +1] Buttons
10. DISPLAY [<-] and [->] Buttons
11. MODE and SUBMODE Buttons
12. [EXIT] Button
13. Sequencer Buttons and Indicators
14. Keyboard
15. Keyboard Mode Buttons
16. [OCT DOWN] and [OCT UP] Buttons
17. [SHIFT] Button
18. [ARPEGGIO ON] Button
19. [TAP/ENTER] Button
10
18
7
12
9
9
8
1914
11
5
RM1x
●●
● Rear Panel
●●
1. STANDBY/ON Switch
2. DC IN Jack
3. CONTRAST Control
4. MIDI IN & OUT Connectors
5. L/MONO & R OUTPUT Jacks
6. PHONES Jack
7. FOOT SW Jack
4375621
6
■ CIRCUIT BOARD LAYOUT
RM1x
7
RM1x
■ DISASSEMBLY PROCEDURE
1.Bottom Case Assembly
1-1Remove the eight (8) screws marked [280] and the
four (4) screws marked [281]. The bottom case
assembly can then be removed. (Fig. 1)
Rear View
Bottom view
(Fig.1)(Fig.2)
[280]: Bind Head Tapping Screw-B 3.0X6 MFZN2BL (EP600230)
[281]: Bonding Head Screw-B 3.0X10 MFZN2BL (VQ498000)
2.DM Circuit Board
2-1Remove the bottom case assembly. (See Proce-
dure 1.)
2-2Remove the two (2) screws marked [310] and the
screw marked [251] on the back of the upper case.
(Fig. 2)
2-3Remove the six (6) screws marked [250]. The DM
circuit board can then be removed. (Fig. 2)
3.FDD Assembly
3-1Remove the bottom case assembly. (See Proce-
dure 1.)
3-2Remove the three (3) screws marked [230] and
the screw marked [231]. The FDD assembly can
then be removed. (Fig. 2)
[230]: Bind Head Tapping Screw-B 3.0X6 MFZN2BL (EP600230)
[231]: Bind Head Tapping Screw-B 3.0X8 MFZN2BL (EP600190)
[250]: Bind Head Tapping Screw-B 3.0X6 MFZN2BL (EP600230)
[251]: Bonding Head Screw-B 3.0X10 MFZN2BL (VQ498000)
[310]: Bind Head Tapping Screw-B 3.0X8 MFZN2BL (EP600190)
8
Rear View
Bottom view
(Fig.3)
[210]: Bind Head Tapping Screw-B 3.0X6 MFZN2BL (EP600230)
[211]: Bind Head Tapping Screw-B 3.0X8 MFZN2BL (EP600190)
[212]: Bonding Head Screw-B 3.0X10 MFZN2BL (VQ498000)
RM1x
4.PN Circuit Board
4-1Remove the bottom case assembly. (See Proce-
dure 1.)
4-2Remove the DM circuit board. (See Procedure 2.)
4-3Remove the FDD assembly. (See Procedure 3.)
4-4Remove the four (4) screws marked [210], the two
(2) screws marked [212] and the four (4) screws
marked [211]. The shield cover can then be re-
moved. (Fig. 3)
4-5Remove the four (4) knobs marked [320]. (Fig. 4)
4-6Remove the twelve (12) screws marked [60]. The
PN circuit board can then be removed. (Fig. 5)
[330]: Knob (V2887900)
[320]: Knob (V2647700)
(Fig.5)(Fig. 4)
[60]:Bind Head Tapping Screw-B 3.0X6 MFZN2BL (EP600230)
9
RM1x
Bottom View
[40]:Bind Head Tapping Screw-B 3.0X8 MFZN2BL (EP600190)
[80]:Bind Head Tapping Screw-B 3.0X6 MFZN2BL (EP600230)
[100]: Bind Head Tapping Screw-B 3.0X6 MFZN2BL (EP600230)
5.Knob Circuit board
5-1Remove the bottom case assembly. (See Proce-
dure 1.)
5-2Remove the DM circuit board. (See Procedure 2.)
5-3Remove the FDD assembly. (See Procedure 3.)
5-4Remove the shield cover. (See Procedure 4.)
5-5Remove the nine (9) knobs marked [330]. (Fig. 4)
5-6Remove the four (4) screws marked [100]. The
KNOB circuit board can then be removed. (Fig. 6)
(Fig.6)
6.MVR Circuit Board
6-1Remove the bottom case assembly. (See Proce-
dure 1.)
6-2Remove the DM circuit board. (See Procedure 2.)
6-3Remove the FDD assembly. (See Procedure 3.)
6-4Remove the shield cover. (See Procedure 4.)
6-5Remove the PN circuit board. (See Procedure 4.)
6-6Remove the volume knob marked [330]. (Fig.4)
6-7Remove the two (2) screws marked [80]. The MVR
circuit board can then be removed. (Fig.6)
7.LCD
7-1Remove the bottom case assembly. (See Proce-
dure 1.)
7-2Remove the DM circuit board. (See Procedure 2.)
7-3Remove the FDD assembly. (See Procedure 3.)
7-4Remove the shield cover. (See Procedure 4.)
7-5Remove the four (4) screws marked [40]. The LCD
can then be removed. (Fig. 6)
10
●
HG73C205FD
PIN
NO.
NAMEI/OFUNCTI ON
1I CNIInitial clear85CMA3OProgr am address bus
2RFCLKIIPLL Clock86CMA8OProgr am address bus
3TM2IPLL Control87CMA2OProgr am address bus
4AVDD_PLLPower s upply88CRDOread si gnal
5AVSS_PL LGround89CMA1OProgr am address bus
6MODE0ISWX d ual mode90CUBOhigh byte effective sig nal
7V CC7Power supply91VCC91Power supply
8GND8Ground92GHND92Ground
9XINIcrystal oscillator93CS1OCS signal
10XOUTOcrystal oscillator94CMA0OProgram address b us
11MODE1ISWX separ ate mode95CL BOlow by te effective si gnal
12TE ST0ITEST pin96CMA12OProgram address b us
13TESTONITEST pin97CMA11OP rogram address b us
14AN0-P40IA/D conv erter98CMA 10OProgr am address bus
15AN1-P41IA/D conv erter99CMA9OProgr am address bus
16AN2-P42IA/D conv erter100GND100Ground
17AN3-P43IA/D conv erter101CW EOwrite s ignal
18AVDD_ANPower s upply102CMA16OProgram addres s b us
19AVSS_ANGround103CMA15OProgram addres s b us
20TXD0Ofor MIDI or TO-HOST104CMA 14OProgr am address bus
21TXD1Ofor MIDI105CMA13OProgram addres s b us
22EXCLKICrystal oscillator106CMD8I/OProgram memory Data bus
23SMD11I/OWave memory data bus107CMD7I/OProgr am memory Data bus
24SMD4I /OWave memory data bus108CMD9I/OProgram memory Data bus
25SMD3I /OWave memory data bus109CMD6I/OProgram memory Data bus
26SMD12I/OWave memory data bus110CMD10I/OProgram memor y Data bus
27SMD10I/OWave memory data bus111CMD5I/OProgram memory Data bus
28SMD5I /OWave memory data bus112CMD11I/OProgr am memory Data bus
29SMD2I /OWave memory data bus113CMD4I/OP rogram memory Data bus
30SMD13I/OWave memory data bus114CMD12I/OProgram memor y Data bus
31SMD9I /OWave memory data bus115CMD3I/OP rogram memory Data bus
32SMD6I /OWave memory data bus116CMD13I/OProgr am memory Data bus
33SMD1I /OWave memory data bus117CMD2I/OP rogram memory Data bus
34SMD14I/OWave memory data bus118CMD14I/OProgram memor y Data bus
35VCC35Power s upply119VCC119Power s upply
36GND36Ground120GND115Ground
37SMD8I /OWave memory data bus121CMD1I/OProgram memory Data bus
38SMD7I /OWave memory data bus122CMD1 5I/OProgr am memory Data bus
39SMD0I /OWave memory data bus123CMD0I/OProgram memory Data bus
40SMD15I/OWave memory data bus124CMA21OProgram addres s b us
41SOEOread signal125P DT15I/OSWX access da ta bus
42SWEOwrite si gnal126PDT14I/OSWX access data bus
43SRASORAS signal127PDT13I/OSWX a ccess data bus
44SCASOCAS signal128PDT12I/OSWX a ccess data bus
45REFRESHOREFRESH signal129PDT11I/OSWX access data bus
46CS0OCS signal130PDT10I/OSWX a ccess data bus
47SMA0OMemory a ddress b us131PDT9I/OSWX a ccess da ta bus
48SMA16OMemory address bus132P DT8I/OSWX access da ta bus
49VCC49Power s upply133VCC133Power s upply
50GND50Ground134GND134Ground
51SMA1OMemory a ddress b us135PDT7I/OSWX a ccess da ta bus
52SMA15OMemory address bus136P DT6I/OSWX access da ta bus
53SMA2OMemory a ddress b us137PDT5I/OSWX a ccess da ta bus
54SMA14OMemory address bus138P DT4I/OSWX access da ta bus
55SMA3OMemory a ddress b us139PDT3I/OSWX a ccess da ta bus
56SMA13OMemory address bus140P DT2I/OSWX access da ta bus
57SMA4OMemory a ddress b us141PDT1I/OSWX a ccess da ta bus
58SMA12OMemory address bus142P DT0I/OSWX access da ta bus
59SMA5OMemory a ddress b us143VCA143Power supply
60GND60Ground144GND144Ground
61VCC61Power s upply145PAD2ISWX a ccess address bus
62SMA11OMemory address bus146PAD1ISWX access ad dress bus
63SMA6OMemory a ddress b us147PAD0ISWX a ccess address bus
64SMA10OMemory address bus148VCC1 48Power supply
65SMA7OMemory a ddress b us149GND149Gro und
66SMA9OMemory a ddress b us150PCSIChip sel ect
67SMA17OMemory address bus151PW RIwrite ena ble
68SMA8OMemory a ddress b us152PRDIread e nable
69SMA18OMemory address b us153RXD0Ifor MIDI or TO-HOST
70SMA19OMemory address b us154RXD1Ifor MIDI or Key scan
71SMA20OMemory address bus155SCLK IIEXT Clock
72SMA21OMemory address bus156ADINIA/D converter
73SMA22OMemory address bus157A DLROA/D c onverter LR cl ock
74SMA23OMemory address bus158DO0ODAC
75CMA20OProgram addres s bus159DO1ODAC
76CMA19OProgram address bus160SYSCLKO1/ 2 clock
77VCC77Power s upply161V CC161P ower supply
78GND78OGround162GND162Gro und
79CMA18OProgram addres s bus163WCLKOfor DAC LR cloc k
80CMA17OProgram addres s bus164QCLKO1/12 clo ck
81CMA5OProgr am address bus165BCLKOIIS-DAC clock
82CMA6OProgr am address bus166SYIISynch signal
83CMA4OProgr am address bus167IRQ0IInterrupt request
84CMA7OProgr am address bus168NMIIInterrupt request
(XU947A00) SWX000
TONE GENERATOR
PIN
NO.
NAMEI /OFUNCT ION
RM1x
11
RM1x
●
HG73C201FD
PIN
NO.
NAMEI/OFUNCTI ON
1I CNIInitial clear85CMA3O
2RFCLKIIPLL Cloc k86CMA8O
3TM2IPLL Control87CMA2O
4AVDD_PLLPower s upply88CRDOread si gnal
5AVSS_PL LGround89CMA1OProgr am address bus
6MODE0IMode set90CU BOhigh byte effective sig nal
7V CC7Power supply91VCC91Power supply
8GND8Ground92GHND92Ground
9XINIcrystal oscillator93CS1OCS signal
10XOUTOcrystal oscillator94CMA0OProgram address b us
11MODE1IMode se t95CLBOlow by te effective signal
12TE ST0ITEST pin96CMA12O
13TESTONITEST pin97CMA11OP rogram address b us
14AN0-P40I98CMA 10O
15AN1-P41IAnalog Signal99CMA9O
16AN2-P42I100GND100Ground
17AN3-P43I101CW EOwrite s ignal
18AVDD_ANPower s upply102CMA16O
19AVSS_ANGround103CMA15OProgram addres s b us
20TXD0Ofor MIDI or TO-HOST104CMA 14O
21TXD1Ofor MIDI105CMA13O
22EXCLKI1M Clock for to Hast106CMD8I/O
23SMD11I/O107CMD7I/O
24SMD4I /O108CMD9I/O
25SMD3I /O109CMD6I/O
26SMD12I/O110CMD10I/O
27SMD10I/O111CMD5I /O
28SMD5I /OWave memory data bus112CMD11I/OProgr am memory Data bus
29SMD2I /O113CMD4I/O
30SMD13I/O114CMD12I/O
31SMD9I /O115CMD3I/O
32SMD6I /O116CMD13I/O
33SMD1I /O117CMD2I/O
34SMD14I/O118CMD14I/O
35VCC35Power s upply119V CC119Power supply
36GND36Ground120GND115Ground
37SMD8I /O121CMD1I/O
38SMD7I /OWave memory data bus122CMD1 5I/OProgr am memory Data bus
39SMD0I /O123CMD0I/O
40SMD15I/O124CMA21OProgram addres s b us
41SOEOread signal125P DT15I/O
42SWEOwrite si gnal126PDT14I/O
43SRASORAS signal127PDT13I/O
44SCASOCAS signal128PDT12I/O
45REFRESHOREFRES H si gnal129PDT11I /OSWX a ccess data bus
46CS0OCS signa l130PDT10I/O
47SMA0OMemory addres s bus131PDT9I/O
48SMA16OMemory address b us132PDT8I/O
49VCC49Power s upply133V CC133P ower supply
50GND50Ground134GND134Ground
51SMA1O135PDT7I/O
52SMA15O136PDT6I/O
53SMA2O137PDT5I/O
54SMA14O138PDT4I/O
55SMA3OWave Memor y address b us139PDT3I/OSWX a ccess data bus
56SMA13O140PDT2I/O
57SMA4O141PDT1I/O
58SMA12O142PDT0I/O
59SMA5O143V CC143Power supply
60GND60Ground144GND144Ground
61VCC61Power s upply145PAD2ISWX a ccess address bus
62SMA11O146PAD1ISWX a ccess addres s bus
63SMA6O147PAD0ISWX access ad dress bus
64SMA10O148V CC148Power supply
65SMA7O149GND149Ground
66SMA9O150PCSISWX access Chip select
67SMA17O151PWRISWX a cce ss write e nable
68SMA8OWave Memor y address b us152PRDISWX a ccess read enable
69SMA18O153RXD0Ifor MIDI or TO-HOST
70SMA19O154RXD1Ifor MIDI or Key scan
71SMA20O155SCLKIIEXT Sync Clock
72SMA21O156ADINIFor Ext A/D converter
73SMA22O157ADLROA/D converter LR cl ock
74SMA23O158DO0ODAC
75CMA20OProgram addres s bus159DO1ODAC
76CMA19OProgram address bus160SYSCLKO1/ 2 clock
77VCC77Power s upply161V CC161P ower supply
78GND78OGround162GND162Gro und
79CMA18O163WCLKOfor DAC LR clock
80CMA17O164QCL KO1/12 cl ock
81CMA5O165BCLKOIIS-DAC clock
82CMA6O166S YIISynch signal
83CMA4OProgr am address bus167IRQ0IInterrupt request
84CMA7O168NMIIInterrupt request
(XT890A00) SWX00
TONE GENERATOR
PIN
NO.
NAMEI /OFUNCT ION
12
●
SH7014
PIN
NO.
(XT437A00)
NAME
I/OFUNCTI ON
1PE14OPort E57D11
2PE15O
CPU
Port E
PIN
NO.
NAMEI/OFUNCT ION
I/O
58D10I/OData bus
3VSS I Ground59D9I/O
4A0 O60D8I/O
5A1O61VSSIGround
6A2 O62D7I/O
7A3O63D6I/OData bus
8A4 O64D5I/O
9A5O65VCCIPower supply
10A6 O66D4I/O
11A7OAddress bus67D3I/O
12A8O68D2I/OData bus
13A9 O69D1I/O
14A10O70D0I/O
15A11O71VSSIGround
16A12O72XTALICLK
17A13O73MD3IMode control
18A14O74EXTALICLK
19A15O75MD2IMode control
20A16O76NMIINon-maskable interrupt request
21VCCIPower supply77VCCIPower supply
22PB1/A17OAddress bus78MD1IMode control
23VSSIGround79MD0IMode control
24/RASO80PLLVCCI
25/CASLOBus control81PLLCAPICLK
26/CASHO82PLLVSSI
27VSSOGround83PA15/CKOPort A
28RDWRO84/RESIReset
29A18O85PE0I
30A19OPort A86PE1I
31A20O87PE2IPort E
32PB9OPort B88PE3I
33VSSIGround89PE4I
34/RDOBus control90VSSIGround
35/WDTOVFONC91AN0I
36/WRHONC92AN1I
37VCCIPower supply93AN2IA/D
38/WRLOBus control94AN3I
39VSSIGround95AN4I
40/CS1OBus control96AN5I
41/CS0OBus control97AVSSIAnalog ground
42PA9OPort A98AN6IA/D
43PA8IPort A99AN7IA/D
44
45
/CS3
/CS2
OBus control100AVCCIPower supply
OBus control101VSSIGround
46PA5O102PE5OPort E
47PA4OPort A103VCCIPower supply
48PA3O104PE6O
49/IRQ0IInterrupt105PE7O
50TXD0OSCI106PE8OPort E
51RXD0ISCI107PE9O
52D15I/O108PE10O
53
54
55
D14
D13
VSS
I/OData bus109VSSIGround
I/O110PE11O
IGround111PE12OPort E
56D12I/OData bus112PE13O
RM1x
PD63200GS-E1
●
μ
PIN
NO.
NAMEI/OFUNCTION
14/8FSI4/8 Fs selection9R. REFChannel R voltage reference
2D. GNDDigital ground10L. REFChannel L voltage reference
316/8 BITI16 bit/8 bit selection11L. OUTOChannel L output
4D. VDDDigital power supply12A. GNDAnalog ground
5A. GNDAnalog ground13LRCX/WDILeft/right check, Word clock
6R. OUTOChannel R output14LR/RSII
7A. VDD
8A. VDD16 CLKIClock
(XP867A00) DAC (Digital to Analog Converter)
Analog power supply
PIN
NO.
NAMEI/OFUNCTION
15S I/ LSIISeries inp ut/Ch annel L s eries input
Left/right selection, Channel R series input
13
RM1x
●
HD63266F (XI939A00) FDC (Floppy Disk Controller)
PIN
NO.
NAMEI /OFUNCT ION
18"//5"IData transmission speed33/TRKOITrack 00 signal
2XTALSETIClock select34/INDEXIIndex signal
3/RESETIRest35/RDATAIRead data input from FDD
4E//RDIEnable/Read36XTAL2
5RW//WRIRead/write/Write37EXTAL2Clock
6/CSIChip select38NC
7/DACKIDMA acknowledge39XTAL1
8RS0IRegister select40EXTAL1Clock
9RS1I41VSS4
10VSS142VSS5Ground
11VSS2Ground43NC
12D0I/O44VCC2
13D1I/O45VCC3Power supply
14D2I/O46VCC4
15D3I/OData bus47/WGATEOWrite control
16D4I/O48/WDATAOWrite data to FDD
17D5I/O49VSS6Ground
18D6I /O5 0/ST E POStep signal to cont rol head of F DD
19D 7I /O51/HDIRODirection
20/DREQODMA request52/HLOADOHead load
21/IRQOInterrupt request53/HSELOHead select
22/DENDIData end54VSS7Ground
23VSS3Ground55/DS0O
241/2 EX156/DS1ODrive select
25VCC1Power supply57/DS2O
26NUM1I58/DS3O
27NUM3I59VSS8Ground
28IFSIHost interface select60/MON0O
29SFORMIFormat data61/MON1OMotor on
30/INPIIndex pulse62/MON2O
31/READYIReady from FDD63/MON3O
32/WPRTIWrite control signal64VSS9Ground
PIN
NO.
NAMEI/OFUNCT ION
●
SED1335F0B (XQ595A00) LCDC (LCD Controller)
PIN
NO.
NAMEI /OFUNCT ION
PIN
NO.
NAMEI/OFUNCT ION
1VA5O31XD2O
2VA4O32XD1OX driver data bus
3VA3OVRAM address bus33XD0O
4VA2O34XECLOX driver enable chain clock
5VA1O35XSCLOX driver shift clock
6VA0O36VSSGround
7VR/WOVRAM write strobe37LPOLatch pulse
8/VCEOVRAM chip enable38WFOFrame signal
9NC39YDISOLCD power down
10/RESIReset40YDOScan start pulse
11NC41YSCLOScan shift clock
12NC42VD7I/O
13/RDI80: Read strobe, 68: E clock43VD6I/O
14/WRI80: Write strobe, 68: Read/Write44VD5I/O
15SEL2ICPU 80/68 bus select45VD4I/OVRAM data bus
16SEL1I46VD3I/O
17OSC1IClock47VD2I/O
18OSC2O48VD1I/O
19/CSIChip select49VD0I/O
20A0IData bus signal discrimination50VA15O
21VDDPower supply51VA14O
22D0I/O52VA13O
23D1I/O53VA12O
24D2I/O54VA11OVRAM address bus
25D3I/O55VA10O
26D4I/OData bus56VA9O
27D5I/O57VA8O
28D6I/O58VA7O
29D7I/O59VA6O
30XD3OX driver data bus60NC
14
●
y
SED1335F0B
PIN
NO.
NAMEI/OFUNCT ION
(XQ595A00) LCDC (LCD Controller)
PIN
NO.
NAMEI/OFUNCT ION
1VA5O31XD2O
2VA4O32XD1OData bus output for 4 bit dot
3VA3OVRAM address bus33XD0O
4VA2O34XECLOS driver enable, chain clock
5VA1O35XSCLOData bus shift clock
6VA0O36Vss-Gr ound
7/VWROVRAM read/write37LPOX driver latch pulse
8/VCEOMemory control38WFOFrame signal for X/Y driver
9/VR D-N ot us ed39YDI SO
Power down signal for displaying off mode
10/RESIInitial clear40YDOScan start signal
11N C-N ot us ed41YS CLOS can shift cloc k
12NC-N ot us ed42VD7I /O
13/RDIRead strobe43VD6I/O
14/WRIWrite strobe44VD5I/O
15SEL2IBus select45VD4I/OVRAM data bus
16SEL1IBus select46VD3I/O
17OSC1IClock47VD2I/O
18OSC2OClock48VD1I/O
19/CSIChip select49VD0I/O
20A0IData mode select50VA15O
21Vdd-Power supply51VA14O
22D0I/O52VA13O
23D1I/O53VA12O
24D2I/O54VA11OVRAM address bus
25D3I/OData bus55VA10O
26D4I/O56VA9O
27D5I/O57VA8O
28D6I/O58VA7O
29D7I/O59VA6O
30XD3OData bus output for 4 bit dot60NC-Not used
RM1x
●
SED1335FOB
PIN
NO.
NAMEI/OF UNCTION
1VA5O31XD2O
2VA4O32XD1OX Driver Data Bus
3VA3O33XD0O
VRAM Data Bus
17OSC1IOs cillator147VD2I/O
18OSC2OOscillator248VD1I /O
19/CSIChip Select Input Signal49VD0I/O
20A0IData Bus Signal Kind Judgement50VA15O