Yamaha RM1x User manual

HAMAMATSU,JAPAN
1.92K-*** I Printed in Japan’98.12
■■
■■
■CONTENTS
SPECIFICATIONS..................................................................................3/5
PANEL LAYOUT .......................................................................................7
CIRCUIT BOARD LAYOUT .....................................................................9
DISASSEMBLY PROCEDURE...............................................................10
LSI PIN DESCRIPTION.........................................................................13
IC BLOCK DIAGRAM ............................................................................18
BLOCK DIAGRAM..................................................................................19
CIRCUIT BOARDS.................................................................................20
TEST PROGRAM & INITIALIZE........................................................25/33
ERROR MASSAGE............................................................................41/43
CONFIRMATION OF MIDI DATA .......................................................42/44
MIDI IMPLEMENTION CHART ..............................................................45
MIDI DATA FORMAT.........................................................................47/53
PARTS LIST
PANEL SWITCH TABLE
OVERALL CIRCUIT DIAGRAM
SERVICE MANUAL
SY 011446
19981201-99800

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-
ing precautions when handling or replacing lithium batteries.
●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.
RM1x
WARNING
Components having special characteristics are marked and must be replaced with parts having specification equal to those originally
installed.

RM1x
3
Sequencer block
Data capacity approximately 110,000 notes
Note resolution 480 clocks per quarter note
Polyphony 64 notes
BPM(Tempo) 25.0 - 300.0
Recordingmethod Realtime Recording(Replace)
Realtime Recording(Overdub)
Realtime Recording(Punch In) - only the Song mode
Step Recording
Grid Step Recording
Tracks Pattern : 16 tracks
Song :16 tracks, BPM track
Patterns 960 preset patterns (60 styles x 16 sections)
800 user patterns (50 styles x 16 sections)
Measures : Up to 256
Phrases Over 7,000 preset phrases
256 user phrases/1 user style
Pattern Chain 20 chains
Songs 20 user songs
Edit Phrase edit
Song edit
Jobs Pattern jobs :36
Pattern chain jobs: 8
Song jobs :28
Split Split song, Split pattern
Groove Grid Groove (Note offset, Clock shift, Gate time offset, Velocity offset)
Play Fx Harmonize(Unison, Octaver, Harmonize1, 2)
Play Fx (Beat stretch, Clock shift, Gate time, Velocity offset)
MIDI delay MIDIdelayedit, Feedback edit
Arpeggio Type (Up, Down, Alternate1, 2, Random) , Sort, Hold, Octave range
Sequence file formats RM1x native sequence format, SMF format 0
Demo song 4 (Included disk)
Tone generator block
Type AWM2 tone generator
Maximum polyphony 32 notes
Multi-timbral capability 16 timbres (with DVA)
Preset voices Normal voices 654 (except GM voices)
Drum voices 46 kits (exceptGMkits)
Effects 3 systems (Reverb effect, Chorus effect, Variation effect)
Reverb 11 types
Chorus 11 types
Variation 43 types
Digital low boost Frequency (50Hz - 2.0kHz), Gain (+/ - 24dB)
Controls
Standby / On switch (STANDBY / ON)
Volume control (VOLUME)
Assignable knobs (x 8)
Display knobs (x 4)
CONTRAST control
Mode buttons [PATTERN], [PATTCHAIN], [SONG],[UTILITY]
Submode buttons [GROOVE], [PLAY FX], [MIDI DELAY], [ARPEGGIO],[VOICE], [VOICE EDIT],
[EFFECT], [SETUP], [DISK], [JOB], [EDIT], [SPLIT]
Function buttons [F1] - [F4]
Knob A/B button [KNOB]

RM1x
4
Eject button [EXIT]
Display button [DISPLAY←],[DISPLAY→]
Sequencer buttons , , , , ,
Data entry buttons [NO -1], [YES+1]
Cursor buttons [CURSOR↑], [CURSOR↓], [CURSOR←], [CURSOR→]
Shift button [SHIFT]
Keyboard mode buttons [TRACK], [TRANSPOSE], [NUM], [MUTE], [SECTION]
Arpeggio on button [ARPEGGIOON]
Octave button [OCT DOWN] , [OCT UP]
Keyboard pad E2 - F4, Tap tempo button [TAP]
Display(LCD) 64 x 240 dot graphic LCD
(with CFL backlight, adjustable contrast)
LED indicators MODE ( x 4) (green)
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)
Connectors PHONES (stereo phone jack)
OUTPUT (phone jack x 2) (L/MONO, R)
FOOTSW
DC IN
MIDI IN, MIDI OUT
Floppy disk drive 3.5 inch 2HD (MF2HD) and 2DD (MF2DD) types
Power supply AC adaptor (PA-5C)
Dimensions 420 mm (W) x 282 mm (D) x 98 mm (H)
Weight 4.4kg
Included items Power adaptor (PA-5C)
Floppy disk (Demo song)
Owner’s manual
* Specifications and appearance are subject to change without notice for
improvement of the product.

RM1x
5
2 3
1
13
16
17
4
16
5
6
15
1914
9
8
18
9
11
7
10
12
1. BPM Display
2. MIDI Data Monitors
3. LCD Display
4. Display Knobs
5. Function Buttons and Indicators
6. VOLUMEControl
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
PANEL LAYOUT
●Front Panel

RM1x
6
1. STANDBY/ON Switch
2. DC IN Jack
3. CONTRASTControl
4. MIDI IN & OUT Connectors
5. L/MONO & R OUTPUT Jacks
6. PHONES Jack
7. FOOT SW Jack
●●
●●
●Rear Panel
4 3 7 5 6 2 1

RM1x
7
■CIRCUIT BOARD LAYOUT

RM1x
8
[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)
2. DM Circuit Board
2-1 Remove the bottom case assembly. (See Proce-
dure 1.)
2-2 Remove the two (2) screws marked [310] and the
screw marked [251] on the back of the upper case.
(Fig. 2)
2-3 Remove the six (6) screws marked [250]. The DM
circuit board can then be removed. (Fig. 2)
3. FDD Assembly
3-1 Remove the bottom case assembly. (See Proce-
dure 1.)
3-2 Remove the three (3) screws marked [230] and
the screw marked [231]. The FDD assembly can
then be removed. (Fig. 2)
[280]: Bind Head Tapping Screw-B 3.0X6 MFZN2BL (EP600230)
[281]: Bonding Head Screw-B 3.0X10 MFZN2BL (VQ498000)
(Fig.1) (Fig.2)
1. Bottom Case Assembly
1-1 Remove the eight (8) screws marked [280] and the
four (4) screws marked [281]. The bottom case
assembly can then be removed. (Fig. 1)
RearView
Bottom view
■DISASSEMBLY PROCEDURE

RM1x
9
[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)
4. PN Circuit Board
4-1 Remove the bottom case assembly. (See Proce-
dure 1.)
4-2 Remove the DM circuit board. (See Procedure 2.)
4-3 Remove the FDD assembly. (See Procedure 3.)
4-4 Remove 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)
4-5 Remove the four (4) knobs marked [320]. (Fig. 4)
4-6 Remove the twelve (12) screws marked [60]. The
PN circuit board can then be removed. (Fig. 5)
[60]: Bind Head Tapping Screw-B 3.0X6 MFZN2BL (EP600230)
(Fig.5)(Fig. 4)
(Fig.3)
[330]: Knob (V2887900)
[320]: Knob (V2647700)
Rear View
Bottom view

RM1x
10
[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
5-1 Remove the bottom case assembly. (See Proce-
dure 1.)
5-2 Remove the DM circuit board. (See Procedure 2.)
5-3 Remove the FDD assembly. (See Procedure 3.)
5-4 Remove the shield cover. (See Procedure 4.)
5-5 Remove the nine (9) knobs marked [330]. (Fig. 4)
5-6 Remove the four (4) screws marked [100]. The
KNOB circuit board can then be removed. (Fig. 6)
6. MVR Circuit Board
6-1 Remove the bottom case assembly. (See Proce-
dure 1.)
6-2 Remove the DM circuit board. (See Procedure 2.)
6-3 Remove the FDD assembly. (See Procedure 3.)
6-4 Remove the shield cover. (See Procedure 4.)
6-5 Remove the PN circuit board. (See Procedure 4.)
6-6 Remove the volume knob marked [330]. (Fig.4)
6-7 Remove the two (2) screws marked [80]. The MVR
circuit board can then be removed. (Fig.6)
7. LCD
7-1 Remove the bottom case assembly. (See Proce-
dure 1.)
7-2 Remove the DM circuit board. (See Procedure 2.)
7-3 Remove the FDD assembly. (See Procedure 3.)
7-4 Remove the shield cover. (See Procedure 4.)
7-5 Remove the four (4) screws marked [40]. The LCD
can then be removed. (Fig. 6)
Bottom View
(Fig.6)

RM1x
11
●HG73C205FD (XU947A00) SWX000 TONE GENERATOR
PIN
NO. NAME I/O FUNCTION PIN NO. NAME I/O FUNCTION
1 ICN I Initial clear 85 CMA3 O Program address bus
2 RFCLKI I PLL Clock 86 CMA8 O Program address bus
3 TM2 I PLL Control 87 CMA2 O Program address bus
4 AVDD_PLL Power supply 88 CRD O read signal
5 AVSS_PLL Ground 89 CMA1 O Program address bus
6 MODE0 I SWX dual mode 90 CUB O high byte effective signal
7 VCC7 Power supply 91 VCC91 Power supply
8 GND8 Ground 92 GHND92 Ground
9 XIN I crystal oscillator 93 CS1 O CS signal
10 XOUT O crystaloscillator 94 CMA0 O Programaddress bus
11 MODE1 I SWX separate mode 95 CLB O low byte effective signal
12 TEST0 I TEST pin 96 CMA12 O Program address bus
13 TESTON I TEST pin 97 CMA11 O Program address bus
14 AN0-P40 I A/D converter 98 CMA10 O Program address bus
15 AN1-P41 I A/D converter 99 CMA9 O Program address bus
16 AN2-P42 I A/D converter 100 GND100 Ground
17 AN3-P43 I A/D converter 101 CWE O write signal
18 AVDD_AN Power supply 102 CMA16 O Program address bus
19 AVSS_AN Ground 103 CMA15 O Program address bus
20 TXD0 O for MIDI or TO-HOST 104 CMA14 O Program address bus
21 TXD1 O for MIDI 105 CMA13 O Program address bus
22 EXCLK I Crystal oscillator 106 CMD8 I/O Program memory Data bus
23 SMD11 I/O Wave memory data bus 107 CMD7 I/O Program memory Data bus
24 SMD4 I/O Wave memory data bus 108 CMD9 I/O Program memory Data bus
25 SMD3 I/O Wave memory data bus 109 CMD6 I/O Program memory Data bus
26 SMD12 I/O Wave memory data bus 110 CMD10 I/O Program memory Data bus
27 SMD10 I/O Wave memory data bus 111 CMD5 I/O Program memory Data bus
28 SMD5 I/O Wave memory data bus 112 CMD11 I/O Program memory Data bus
29 SMD2 I/O Wave memory data bus 113 CMD4 I/O Program memory Data bus
30 SMD13 I/O Wave memory data bus 114 CMD12 I/O Program memory Data bus
31 SMD9 I/O Wave memory data bus 115 CMD3 I/O Program memory Data bus
32 SMD6 I/O Wave memory data bus 116 CMD13 I/O Program memory Data bus
33 SMD1 I/O Wave memory data bus 117 CMD2 I/O Program memory Data bus
34 SMD14 I/O Wave memory data bus 118 CMD14 I/O Program memory Data bus
35 VCC35 Power supply 119 VCC119 Power supply
36 GND36 Ground 120 GND115 Ground
37 SMD8 I/O Wave memory data bus 121 CMD1 I/O Program memory Data bus
38 SMD7 I/O Wave memory data bus 122 CMD15 I/O Program memory Data bus
39 SMD0 I/O Wave memory data bus 123 CMD0 I/O Program memory Data 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 data bus
47 SMA0 O Memory address bus 131 PDT9 I/O SWX access data bus
48 SMA16 O Memory address bus 132 PDT8 I/O SWX access data bus
49 VCC49 Power supply 133 VCC133 Power supply
50 GND50 Ground 134 GND134 Ground
51 SMA1 O Memory address bus 135 PDT7 I/O SWX access data bus
52 SMA15 O Memory address bus 136 PDT6 I/O SWX access data bus
53 SMA2 O Memory address bus 137 PDT5 I/O SWX access data bus
54 SMA14 O Memory address bus 138 PDT4 I/O SWX access data bus
55 SMA3 O Memory address bus 139 PDT3 I/O SWX access data bus
56 SMA13 O Memory address bus 140 PDT2 I/O SWX access data bus
57 SMA4 O Memory address bus 141 PDT1 I/O SWX access data bus
58 SMA12 O Memory address bus 142 PDT0 I/O SWX access data bus
59 SMA5 O Memory address bus 143 VCA143 Power supply
60 GND60 Ground 144 GND144 Ground
61 VCC61 Power supply 145 PAD2 I SWX access address bus
62 SMA11 O Memory address bus 146 PAD1 I SWX access address bus
63 SMA6 O Memory address bus 147 PAD0 I SWX access address bus
64 SMA10 O Memory address bus 148 VCC148 Power supply
65 SMA7 O Memory address bus 149 GND149 Ground
66 SMA9 O Memory address bus 150 PCS I Chip select
67 SMA17 O Memory address bus 151 PWR I write enable
68 SMA8 O Memory address bus 152 PRD I read enable
69 SMA18 O Memory address bus 153 RXD0 I for MIDI or TO-HOST
70 SMA19 O Memory address bus 154 RXD1 I for MIDI or Key scan
71 SMA20 O Memory address bus 155 SCLKI I EXT Clock
72 SMA21 O Memory address bus 156 ADIN I A/D converter
73 SMA22 O Memory address bus 157 ADLR O A/D converter LR clock
74 SMA23 O Memory address bus 158 DO0 O DAC
75 CMA20 O Program address bus 159 DO1 O DAC
76 CMA19 O Program address bus 160 SYSCLK O 1/2 clock
77 VCC77 Power supply 161 VCC161 Power supply
78 GND78 O Ground 162 GND162 Ground
79 CMA18 O Program address bus 163 WCLK O for DAC LR clock
80 CMA17 O Program address bus 164 QCLK O 1/12clock
81 CMA5 O Program address bus 165 BCLK O IIS-DAC clock
82 CMA6 O Program address bus 166 SYI I Synch signal
83 CMA4 O Program address bus 167 IRQ0 I Interrupt request
84 CMA7 O Program address bus 168 NMI I Interrupt request

RM1x
12
●HG73C201FD (XT890A00) SWX00 TONE GENERATOR
PIN
NO. NAME I/O FUNCTION PIN NO. NAME I/O FUNCTION
1 ICN I Initial clear 85 CMA3 O
2 RFCLKI I PLL Clock 86 CMA8 O
3 TM2 I PLL Control 87 CMA2 O
4 AVDD_PLL Power supply 88 CRD O read signal
5 AVSS_PLL Ground 89 CMA1 O Program address bus
6 MODE0 I Mode set 90 CUB O high byte effective signal
7 VCC7 Power supply 91 VCC91 Power supply
8 GND8 Ground 92 GHND92 Ground
9 XIN I crystal oscillator 93 CS1 O CS signal
10 XOUT O crystaloscillator 94 CMA0 O Program address bus
11 MODE1 I Mode set 95 CLB O low byte effective signal
12 TEST0 I TEST pin 96 CMA12 O
13 TESTON I TEST pin 97 CMA11 O Program address bus
14 AN0-P40 I 98 CMA10 O
15 AN1-P41 I Analog Signal 99 CMA9 O
16 AN2-P42 I 100 GND100 Ground
17 AN3-P43 I 101 CWE O write signal
18 AVDD_AN Power supply 102 CMA16 O
19 AVSS_AN Ground 103 CMA15 O Program address bus
20 TXD0 O for MIDI or TO-HOST 104 CMA14 O
21 TXD1 O for MIDI 105 CMA13 O
22 EXCLK I 1M Clock for to Hast 106 CMD8 I/O
23 SMD11 I/O 107 CMD7 I/O
24 SMD4 I/O 108 CMD9 I/O
25 SMD3 I/O 109 CMD6 I/O
26 SMD12 I/O 110 CMD10 I/O
27 SMD10 I/O 111 CMD5 I/O
28 SMD5 I/O Wave memory data bus 112 CMD11 I/O Program memory Data bus
29 SMD2 I/O 113 CMD4 I/O
30 SMD13 I/O 114 CMD12 I/O
31 SMD9 I/O 115 CMD3 I/O
32 SMD6 I/O 116 CMD13 I/O
33 SMD1 I/O 117 CMD2 I/O
34 SMD14 I/O 118 CMD14 I/O
35 VCC35 Power supply 119 VCC119 Power supply
36 GND36 Ground 120 GND115 Ground
37 SMD8 I/O 121 CMD1 I/O
38 SMD7 I/O Wave memory data bus 122 CMD15 I/O Program memory Data bus
39 SMD0 I/O 123 CMD0 I/O
40 SMD15 I/O 124 CMA21 O Program address bus
41 SOE O read signal 125 PDT15 I/O
42 SWE O write signal 126 PDT14 I/O
43 SRAS O RAS signal 127 PDT13 I/O
44 SCAS O CAS signal 128 PDT12 I/O
45 REFRESH O REFRESH signal 129 PDT11 I/O SWX access data bus
46 CS0 O CS signal 130 PDT10 I/O
47 SMA0 O Memory address bus 131 PDT9 I/O
48 SMA16 O Memory address bus 132 PDT8 I/O
49 VCC49 Power supply 133 VCC133 Power supply
50 GND50 Ground 134 GND134 Ground
51 SMA1 O 135 PDT7 I/O
52 SMA15 O 136 PDT6 I/O
53 SMA2 O 137 PDT5 I/O
54 SMA14 O 138 PDT4 I/O
55 SMA3 O Wave Memory address bus 139 PDT3 I/O SWX access data bus
56 SMA13 O 140 PDT2 I/O
57 SMA4 O 141 PDT1 I/O
58 SMA12 O 142 PDT0 I/O
59 SMA5 O 143 VCC143 Power supply
60 GND60 Ground 144 GND144 Ground
61 VCC61 Power supply 145 PAD2 I SWX access address bus
62 SMA11 O 146 PAD1 I SWX access address bus
63 SMA6 O 147 PAD0 I SWX access address bus
64 SMA10 O 148 VCC148 Power supply
65 SMA7 O 149 GND149 Ground
66 SMA9 O 150 PCS I SWX access Chip select
67 SMA17 O 151 PWR I SWX access write enable
68 SMA8 O Wave Memory address bus 152 PRD I SWX access read enable
69 SMA18 O 153 RXD0 I for MIDI or TO-HOST
70 SMA19 O 154 RXD1 I for MIDI or Key scan
71 SMA20 O 155 SCLKI I EXT Sync Clock
72 SMA21 O 156 ADIN I For Ext A/D converter
73 SMA22 O 157 ADLR O A/D converter LR clock
74 SMA23 O 158 DO0 O DAC
75 CMA20 O Program address bus 159 DO1 O DAC
76 CMA19 O Program address bus 160 SYSCLK O 1/2 clock
77 VCC77 Power supply 161 VCC161 Power supply
78 GND78 O Ground 162 GND162 Ground
79 CMA18 O 163 WCLK O for DAC LR clock
80 CMA17 O 164 QCLK O 1/12clock
81 CMA5 O 165 BCLK O IIS-DAC clock
82 CMA6 O 166 SYI I Synch signal
83 CMA4 O Program address bus 167 IRQ0 I Interrupt request
84 CMA7 O 168 NMI I Interrupt request

RM1x
13
●SH7014 (XT437A00) CPU
PIN
NO. NAME I/O FUNCTION PIN NO. NAME I/O FUNCTION
1 PE14 O Port E 57 D11 I/O
2 PE15 O Port E 58 D10 I/O Data bus
3VSS I Ground 59D9I/O
4A0 O 60D8I/O
5 A1 O 61 VSS I Ground
6A2 O 62D7I/O
7 A3 O 63 D6 I/O Data bus
8A4 O 64D5I/O
9 A5 O 65 VCC I Power supply
10A6 O 66D4I/O
11 A7 O Address bus 67 D3 I/O
12 A8 O 68 D2 I/O Data bus
13A9 O 69D1I/O
14 A10 O 70 D0 I/O
15 A11 O 71 VSS I Ground
16 A12 O 72 XTAL I CLK
17 A13 O 73 MD3 I Mode control
18 A14 O 74 EXTAL I CLK
19 A15 O 75 MD2 I Mode control
20 A16 O 76 NMI I Non-maskable interrupt request
21 VCC I Power supply 77 VCC I Power supply
22 PB1/A17 O Address bus 78 MD1 I Mode control
23 VSS I Ground 79 MD0 I Mode control
24 /RAS O 80 PLLVCC I
25 /CASL O Bus control 81 PLLCAP I CLK
26 /CASH O 82 PLLVSS I
27 VSS O Ground 83 PA15/CK O Port A
28 RDWR O 84 /RES I Reset
29 A18 O 85 PE0 I
30 A19 O Port A 86 PE1 I
31 A20 O 87 PE2 I Port E
32 PB9 O Port B 88 PE3 I
33 VSS I Ground 89 PE4 I
34 /RD O Bus control 90 VSS I Ground
35 /WDTOVF O NC 91 AN0 I
36 /WRH O NC 92 AN1 I
37 VCC I Power supply 93 AN2 I A/D
38 /WRL O Bus control 94 AN3 I
39 VSS I Ground 95 AN4 I
40 /CS1 O Bus control 96 AN5 I
41 /CS0 O Bus control 97 AVSS I Analog ground
42 PA9 O Port A 98 AN6 I A/D
43 PA8 I Port A 99 AN7 I A/D
44 /CS3 O Bus control 100 AVCC I Power supply
45 /CS2 O Bus control 101 VSS I Ground
46 PA5 O 102 PE5 O Port E
47 PA4 O Port A 103 VCC I Power supply
48 PA3 O 104 PE6 O
49 /IRQ0 I Interrupt 105 PE7 O
50 TXD0 O SCI 106 PE8 O Port E
51 RXD0 I SCI 107 PE9 O
52 D15 I/O 108 PE10 O
53 D14 I/O Data bus 109 VSS I Ground
54 D13 I/O 110 PE11 O
55 VSS I Ground 111 PE12 O Port E
56 D12 I/O Data bus 112 PE13 O
●μPD63200GS-E1 (XP867A00) DAC (Digital to Analog Converter)
PIN
NO. NAME I/O FUNCTION PIN NO. NAME I/O FUNCTION
1 4/8FS I 4/8 Fs selection 9 R. REF Channel R voltage reference
2 D. GND Digital ground 10 L. REF Channel L voltage reference
3 16/8 BIT I 16 bit/8 bit selection 11 L. OUT O Channel L output
4 D. VDD Digital power supply 12 A. GND Analog ground
5 A. GND Analog ground 13 LRCX/WD I Left/right check, Word clock
6 R. OUT O Channel R output 14 LR/RSI I Left/right selection,Channel R series input
7A.VDD Analog power supply 15 SI/LSI I Series input/Channel L series input
8A.VDD 16 CLK I Clock

RM1x
14
●HD63266F (XI939A00) FDC (Floppy Disk Controller)
PIN
NO. NAME I/O FUNCTION PIN NO. NAME I/O FUNCTION
1 8"//5" I Data transmission speed 33 /TRKO I Track 00 signal
2 XTALSET I Clock select 34 /INDEX I Index signal
3 /RESET I Rest 35 /RDATA I Read data input from FDD
4 E//RD I Enable/Read 36 XTAL2
5 RW//WR I Read/write/Write 37 EXTAL2 Clock
6 /CS I Chip select 38 NC
7 /DACK I DMA acknowledge 39 XTAL1
8 RS0 I Register select 40 EXTAL1 Clock
9 RS1 I 41 VSS4
10 VSS1 42 VSS5 Ground
11 VSS2 Ground 43 NC
12 D0 I/O 44 VCC2
13 D1 I/O 45 VCC3 Power supply
14 D2 I/O 46 VCC4
15 D3 I/O Data bus 47 /WGATE O Write control
16 D4 I/O 48 /WDATA O Write data to FDD
17 D5 I/O 49 VSS6 Ground
18 D6 I/O 50 /STEP O Step signal to control head of FDD
19 D7 I/O 51 /HDIR O Direction
20 /DREQ O DMA request 52 /HLOAD O Head load
21 /IRQ O Interrupt request 53 /HSEL O Head select
22 /DEND I Data end 54 VSS7 Ground
23 VSS3 Ground 55 /DS0 O
24 1/2 EX1 56 /DS1 O Drive select
25 VCC1 Power supply 57 /DS2 O
26 NUM1 I 58 /DS3 O
27 NUM3 I 59 VSS8 Ground
28 IFS I Host interface select 60 /MON0 O
29 SFORM I Format data 61 /MON1 O Motor on
30 /INP I Index pulse 62 /MON2 O
31 /READY I Ready from FDD 63 /MON3 O
32 /WPRT I Write control signal 64 VSS9 Ground
●SED1335F0B (XQ595A00) LCDC (LCD Controller)
PIN
NO. NAME I/O FUNCTION PIN NO. NAME I/O FUNCTION
1 VA5 O 31 XD2 O
2 VA4 O 32 XD1 O X driver data bus
3 VA3 O VRAM address bus 33 XD0 O
4 VA2 O 34 XECL O X driver enable chain clock
5 VA1 O 35 XSCL O X driver shift clock
6 VA0 O 36 VSS Ground
7 VR/W O VRAM write strobe 37 LP O Latch pulse
8 /VCE O VRAM chip enable 38 WF O Frame signal
9 NC 39 YDIS O LCD power down
10 /RES I Reset 40 YD O Scan start pulse
11 NC 41 YSCL O Scan shift clock
12 NC 42 VD7 I/O
13 /RD I 80: Read strobe, 68: E clock 43 VD6 I/O
14 /WR I 80: Write strobe, 68: Read/Write 44 VD5 I/O
15 SEL2 I CPU 80/68 bus select 45 VD4 I/O VRAM data bus
16 SEL1 I 46 VD3 I/O
17 OSC1 I Clock 47 VD2 I/O
18 OSC2 O 48 VD1 I/O
19 /CS I Chip select 49 VD0 I/O
20 A0 I Data bus signal discrimination 50 VA15 O
21 VDD Power supply 51 VA14 O
22 D0 I/O 52 VA13 O
23 D1 I/O 53 VA12 O
24 D2 I/O 54 VA11 O VRAM address bus
25 D3 I/O 55 VA10 O
26 D4 I/O Data bus 56 VA9 O
27 D5 I/O 57 VA8 O
28 D6 I/O 58 VA7 O
29 D7 I/O 59 VA6 O
30 XD3 O X driver data bus 60 NC

RM1x
15
●SED1335F0B (XQ595A00) LCDC (LCD Controller)
PIN
NO. NAME I/O FUNCTION PIN NO. NAME I/O FUNCTION
1 VA5 O 31 XD2 O
2 VA4 O 32 XD1 O Data bus output for 4 bit dot
3 VA3 O VRAM address bus 33 XD0 O
4 VA2 O 34 XECL O S driver enable, chain clock
5 VA1 O 35 XSCL O Data bus shift clock
6 VA0 O 36 Vss - Ground
7 /VWR O VRAM read/write 37 LP O X driver latch pulse
8 /VCE O Memory control 38 WF O Frame signal for X/Y driver
9 /VRD - Not used 39 YDIS O Power down signal for displaying off mode
10 /RES I Initial clear 40 YD O Scan start signal
11 NC - Not used 41 YSCL O Scan shift clock
12 NC - Not used 42 VD7 I/O
13 /RD I Read strobe 43 VD6 I/O
14 /WR I Write strobe 44 VD5 I/O
15 SEL2 I Bus select 45 VD4 I/O VRAM data bus
16 SEL1 I Bus select 46 VD3 I/O
17 OSC1 I Clock 47 VD2 I/O
18 OSC2 O Clock 48 VD1 I/O
19 /CS I Chip select 49 VD0 I/O
20 A0 I Data mode select 50 VA15 O
21 Vdd - Power supply 51 VA14 O
22 D0 I/O 52 VA13 O
23 D1 I/O 53 VA12 O
24 D2 I/O 54 VA11 O VRAM address bus
25 D3 I/O Data bus 55 VA10 O
26 D4 I/O 56 VA9 O
27 D5 I/O 57 VA8 O
28 D6 I/O 58 VA7 O
29 D7 I/O 59 VA6 O
30 XD3 O Data bus output for 4 bit dot 60 NC - Not used
●SED1335FOB (XQ595A00) LCDC
PIN
NO. NAME I/O FUNCTION PIN NO. NAME I/O FUNCTION
1 VA5 O 31 XD2 O
2 VA4 O 32 XD1 O X Driver Data Bus
3 VA3 O 33 XD0 O
4 VA2 O 34 XECL O Xdriver Enable Chan
g
e Clock
5 VA1 O 35 XSCL O Xdriver Shift Clock
6 VA0 O 36 Vss - Groud
7 /VWR O VRAMWrite Si
g
nal 37 LP O Latch Pulse
8 /VCE O VRAM Chip enable 38 WF O Frame Si
g
nal
9 NC - 39 YDIS O LCD Power Down Output
10 /RES I Reset Input Si
g
nal 40 YD O Scan Start Pulse
11 NC - 41 YSCL O Scan Sift Clock
12 NC - 42 VD7 I/O
13 /RD I Read Si
g
nal 43 VD6 I/O
14 /WR I Write Si
g
nal 44 VD5 I/O
15 SEL2 I Bus Select 45 VD4 I/O
16 SEL1 I Bus Select 46 VD3 I/O
17 OSC1 I Oscillator1 47 VD2 I/O
18 OSC2 O Oscillator2 48 VD1 I/O
19 /CS I Chip Select Input Si
g
nal 49 VD0 I/O
20 A0 I Data Bus Si
g
nal Kind Jud
g
ement 50 VA15 O
21 Vdd - Power Suppl
y
51 VA14 O
22 D0 I/O 52 VA13 O
23 D1 I/O 53 VA12 O
24 D2 I/O 54 VA11 O
25 D3 I/O 55 VA10 O
26 D4 I/O 56 VA9 O
27 D5 I/O 57 VA8 O
28 D6 I/O 58 VA7 O
29 D7 I/O 59 VA6 O
30 XD3 O X Driver Data Bus 60 NC -
VRAM Address Bus
VRAM Data Bus
VRAM Address Bus
Data Bus for System

RM1x
16

19
RM1x
28CA1-8812706

RM1x
20
• DM Circuit Board
△
2
Component side
DM:2NA-V260480
to LCD Back light to FDD to MVR CN6
MIDI-OUT MIDI-IN CONTRAST FOOT SW OUTLET/R OUTLET/L-MONO PHONES DC IN STAND BY/ON
to LCD to PN-CN4 to PN-CN5
to FDD UNITto PN-CN4to PN-
CN1

21
RM1x
Patternside
• DM Circuit Board

RM1x
22
• PN 1/3Circuit Board
to DM-CN4 Component side
to DM-CN5 to DM-CM3 to DM-CN1
Note: See parts list for details of circuit board component parts.
See PANEL SWITCH TABLE on C2 of OVERALL CIRCUIT
DIAGRAM.