Micro Medical SuperSpiro Service manual

Super Spiro - Service Manual

056-09 Issue. 1.0 November 1999

Contents

Exploded isometric view Page 3
Parts list Page 4
System overview Page 5
Transducer Page 6
Disassembly instructions Page 7
Re-assembly instructions Page 8
Circuit description Page 9

Microprocessor circuit Page 9
Flash disk Page 10
Serial interface Page 10
Transducer interface Page 10
Frame store Page 10
FPGA Page 11
Keypad circuit Page 11
Real time clock circuit Page 12
Sound generator circuit Page 12
Printer control circuit Page 12
Expansion Page 12
Printer driver circuit Page 12

Technical support Page 13
Fault analysis Page 14
Circuit diagrams

Micro processor circuit Page 15
FPGA circuit Page 16
Keypad circuit Page 17
Real time clock circuit Page 18
Printer circuit Page 19
Printer driver 1 Page 20
Printer driver 2 Page 21

2

Exploded Isometric View

Item 15

Item 1

Item 10

Item 16

Item 8

Item 20

Item 21

Item 22

Item 12

Item 14

Item 23

Item 13

Item 9

Item 2

Item 11

Item 18

Item 9

Item 7

Item 4

Item 6

Item 17

Item 5

Item 3

Item 19

3

Parts List

ITEM No.

1 TOP MOULDING MLD5611A
2 BACK PANEL MLD5615C
3 SIDE PANEL MLD5615B
4 DISPLAY CABLE ASSEMBLY ASS5624
5 BOTTOM MOULDING MLD5612A
6 HINGE BLOCK MLD5618
7 DISPLAY FRONT MLD5613
8 DISPLAY BACK MLD5614

9 DISPLAY HINGE ASSEMBLY ASS5601
10 PAPER COVER MLD5617
11 CSK SELF TAPPING SCREW 9mm LONG SCR5604
12 SPEAKER SPKR100
13 SPEAKER COVER MLD5620
14 CONTRAST WHEEL MLD5621
15 SCREW COVER MLD5616
16 CSK SELF TAPPING SCREW 8mm LONG SCR5602
17 CSK SELF TAPPING SCREW 13mm LONG SCR5601
18 M3 MACHINE SCREW 6mm LONG SCR0306
19 CSK SELF TAPPING SCREW 18mm LONG SCR4700
20 DISPLAY LATCH MLD5619
21 DISPLAY LATCH BUTTON MLD5622
22 PRINTER MECHANISM PTR4200
23 THERMAL PRINT HEAD TPH3000

DESCRIPTION MICRO MEDICAL PT No.

4

Super Spiro - System Overview (Fig. 1)

The Micro Medical Super Spiro is a data recording spirometer consisting of a microcomputer

unit (1) incorporating a 1/4VGA colour LCD display, data entry keypad, RS232 serial interface and all
associated circuitry. It is supplied with a digital volume transducer (2), disposable mouthpieces,
transducer holder (3) and mains adapter (4). The Super Spiro is powered by a universal mains
adapter (4).
When testing a subject the transducer is inserted into the holder which is plugged into the
microcomputer unit. The digital volume transducer is used to measure the subjects expired flow and
volume in accordance with the operating manual.

1

super

spiro

4

Micro

Medical

3

2

5

Transducer (Fig. 2)

The Micro Medical digital volume transducer consists of an acrylic tube with a vane positioned

between two swirl plates. The low inertia vane is attached to a stainless steel pivot, which is free to
rotate on two jewelled bearings mounted at the centre of the swirl plates. As air is passed through the
transducer the swirl plates create a vortex, which causes the vane to rotate in a direction dependant
upon the direction of airflow. The number of rotations is proportional to the volume of air passed
through the transducer and the frequency of rotation is proportional to the flow rate. The transducer
housing consists of a main body that contains a pair of light emitting diodes (LED’s) and
phototransistors. The transducer is fixed to the mouthpiece holder which pushes into the main body
and is captured by an “O” ring seal. The LED’s produce infra red beams which are interrupted by the
vane twice per revolution. This interruption is sensed by the phototransistors. The output from the
collector of each phototransistor will be a square wave with a phase difference between the two of +
or - 90 degrees depending upon the direction of flow.
There is no routine maintenance required for the transducer other than cleaning according to
the instructions in the operating manual.

Micro Medical Digital Volume Transducer

Volume proportional to the number of pulses
Flow proportional to the puse frequency

Rotating

vane

Volume = k X No. of pulses

Infra red

emitter

Infra red
detector

Swirl
plate

Flow = k / pulse period

Jewelled

bearing

6

Disassembling the Super Spiro for Repairs

Main Unit

1. Disconnect all mains power supplies

2. Remove paper roll and paper roll housing cover, and put to one side

We recommend that you use a Philip Number Zero screwdriver for the following
instruction.

3. Place the Super Spiro face down to remove the six screws (Item 19) in the lower moulding, and
put the screws to one side.

4. Turn the unit face up before easing the upper and lower mouldings apart.

5. Reconnect mains power supply

6. The Super Spiro is now ready for fault finding.

Display Console

1. Remove the 4 screw covers (item 15) and dispose of.

We recommend that you use a Philip Number Zero screwdriver for the following
instruction.

2. Remove the 4 screws (item 16) and put to one side.

3. Carefully remove the display front panel (item 7) and put to one side.

4. Carefully pull the display away from the display back moulding (item 8).

5. Unplug the 2 connectors from the main display.

6. The display backlight is now ready for replacement.

Display backlight replacement

DISPLAY (REAR VIEW)

CFL CONNECTOR INVERTOR BOARD

CFL UNIT

1. Place the display face down on a clean work surface

7

FIXING SCREW

I

T

KCS3224A CFL UN

2. Unplug the connector from the Invertor board situated on the back of the display.

We recommend that you use a Philip Number Zero screwdriver for the following
instruction.

3. Loosen the fixing screw located on the CFL unit.

4. Slide the CFL unit to the opposite direction to the arrow mark (located on the CFL unit) and pull
the unit gently up.

5. Safely dispose of the CFL unit.

6. Take a new CFL unit and position in the original place.

7. Slide the CFL unit in the direction of the arrow.

8. Tighten the fixing screw to secure the CFL unit.

9. Reconnect the connector on the CFL unit to the invertor board.

Reassembling the Superspiro after repairs

Main unit

1. Disconnect all mains power supplies

2. Position the top moulding over the bottom moulding and ensure that they both mate ensuring that
the contrast wheel (item 14) is correctly located.

3. Place the Super Spiro face down and insert the six screws.

4. Turn the unit face up and connect the mains supply.

5. Turn the unit and offer up the paper roll as explained in the operating manual.

6. Replace the paper cover.

7. The Super Spiro is now ready for operation.

Display console

1. Reconnect the 2 connectors on item 4 to the plugs on the display ensuring correct polarity.

2. Position the display over the locating pillars on the display back panel (item 8).

3. Position the display front panel (item 7) over the display.

4. Secure the display using 4 screws (item 16)

5. Replace the 4 screw covers (item 15).

8

Circuit Description

The Super Spiro board was designed primarily to interface with the Micro Medical Spirometer turbine,
but the interface was kept open ended so that other modules, for example, airways resistance by the
interrupter method (Rint) can be attached. Furthermore, a 9 pin ‘D’ type connector was also designed
in to allow other ‘customer special’ modules to be attached. Provision was given to add a mezzanine
board for customer special interface circuitry to be connected.

The main features of the design are:
Intel 80386EX micro controller.

2 Mbytes of DRAM (only 1 Meg is used).
512 Mbytes of Flash EPROM for programme. (256K used)
2 Mbytes of Flash EPROM as Flash disk memory.
Dual frame store of 320 X 240 X 8 pixels.
Second frame store can be scrolled horizontally or vertically.
Frame store, key pad, Dram etc. are all controlled by single FPGA chip.
Boot software can be downloaded using the JTAG port.
In built printer and printer controller.
Serial port for external PC communication / external printer.
RJ11 interface to Micro Medical modules.
The following paragraphs describe the circuits printed at the end of this manual. Signal and
component names shown on the circuit diagrams are printed in bold type.

Microprocessor circuit (Drawing 056-02)

The board is controlled by an Intel 80386EX, U14, running at 25 MHz. The crystal oscillator, U15, of
50MHz drives the processor, as twice the operating frequency is required. U10 (MAX 824) controls
the reset of the processor, such that it resets the processor if the supply voltage drops below 4.6V.
The processor requires a high active reset line whilst the rest of the board requires a low active reset.

The start up program is stored in U20, a 512 Mbytes Flash EEPROM – TE28F160S. This is selected
by the signal UCS (U14 pin 1) which is always active on start up. The reset of the chip select lines
are then programmed by the boot routine.

The program memory has two major parts, the boot section and non-boot section. The boot section is
secured, and can only be programmed if the link LK1 is present and VPPEN (U14 pin 110) is
enabled, supplying VCC to pin 13 of U19. This section is programmed with a boot loader via the on­board socket, J9. Whilst this is happening the processor goes into suspend mode, and all its pins are
then available in a long shift register. By entering a correct sequence of code, via J9, the boot loader
can be programmed into U19. Once this is done, the link is removed and processor is reset and it
would then run the boot loader, thus allowing further software to be downloaded. The rest of U19 is
filled with kernel software that controls the flash disk as well as most I/O functions, just as the BIOS
does in the PC.

U18 is 1M X 16 (2 Mbytes) DRAM which is the main RAM of the processor. Only 640 K is directly
available to the processor, and 128 K is used for storing the display image temporarily (see later).

The DRAM refresh and address multiplexing is controlled by U13 – Xilinx XC4006E FPGA. The chip
select for the DRAM, UC3, is mapped for 0 - $BFFFF, but $A0000 - $BFFFF is frame store memory,
so UC3 is only valid if frame store is invalid. This will become clearer in the Frame Store section.

Q23, Q24 and U22A are used to switch on 5 volts to VPP of Flash EEPROM. This gives extra
security against any part of the program becoming corrupted by software. However, the software can
write the non-boot section, by enabling the VPP line and following the EEPOM erase/write algorithm.
Chances of both these events accidentally happening are very small. Nevertheless, the boot software
is completely protected by the absence of Link LK1.

9

Flash Disk (Drawing 056-02)

The flash disk, U20, behaves just like a PC floppy disk drive except that it is non-removable. Its size
is 2 Mbytes with sector size of 512 bytes. The main difference is that there is a finite number
(approximately 100,000) of times the sectors can be written, so an intelligent disk operating system is
employed to rotate the sectors round, and delete the others when no system activity is envisaged.
Delete takes few milliseconds. The Flash Disk is mapped at $C8000 - $CBFFF (16K blocks). There
are 128 pages of 16K, and the pages are controlled by 8 bit latch U17, which holds the page number
(higher addresses) of the Flash disk.

The board is designed to accommodate a larger 4 Mbytes device with 256 pages.
The MSB of the page line (U17/19) is connected to green led. This is mainly used for testing of the

board and has no other significance.

Serial Interface (Drawing 056-02)

U4 (MAX3223) converts logic levels to RS232 levels. J3, a 9-pin female D type connector, is used as

the external RS232 port. The signal pins are such that it can make one to one connection with the PC
serial port. It has the facility to use hardware handshaking lines CTS and RTS, but these are currently
not used. If power supply is required from the RS232 connection, say to drive a serial to parallel
converter, then fuse FS2 can be fitted to give 5V on pin 4

J3 pin connections.

1 N/C
2 TX
3 RX
4 5V*
5 GND
6 N/C
7 CTS
8 RTS
9 N/C

* If fuse connected.

Transducer Interface (Drawing 056-02)

The connector, J13, is used for connecting to Micro Medical transducers, namely Spirometer turbine,
Rint and NEP transducers. It is a 6-pin interface, though for turbine, the middle 4 lines are used. 12V
power is available on pin 5 and GND on pin 4. The rest of pins are multifunction, and can be
configured in various ways, either as inputs, outputs or SPI bus. Pins 2 and 3 have schmitt trigger
inputs connected to it, mainly for turbine operation.

Frame Store (Drawing 056-03)

Frame Stores are mapped from address $A0000 to $BFFFF (128 Kbytes). Although, the actual
display is 320 X 240 pixels, the frame store is organised as 512 X 256 pixels. This organisation
makes the design much simpler. The frame store memory U11 and U12 are both high speed static
RAM, U11 being a fixed frame store (A) and U12 a scrolling frame store (B). They overlay on top of
each other and their mode can be controlled by I/O register in the FPGA, U13. It can be organised as
A on B, B on A, A only or B only. A on B means that where the A data is 0, B data is displayed. This
allows a border to be displayed on fixed screen, and a waveform scrolled inside the window.
During read, both the memories are multiplexed, so that its data can be read in one cycle. The
display requires data as 8 bits, with r1, g1, b1, r2, g2, b2, r3, g3 as the first byte, b3, r4, g4, b4, r5, b5,
g5, r5 as the second byte and so on. The data from frame store is available as pixel 1, pixel 2 etc.
with each pixel being 8 bits. The FPGA has the necessary look up table to display 64 colours (bits 0 –

10

bits 5) and converts pixel data to RGB data as required by LCD. This is a complex operation and is
beyond the scope of this document. It is sufficient to know that the RGB data is sent out to LCD via

J11.
DISP_FRAME signal is a single line, active low pulse at the start of every frame.

DISP_LOAD is a single, active low, clock pulse at the start of every line.
DISP_CLK clocks the data DISP_D0 – DISP_D7 into the display.
DISP_CNTL enables the display.

U25 is a DC to DC converter to give 26.4 volts from 5V supply. This is the bias voltage for the LCD

display. It can be slightly adjusted by VR1 to give better contrast at different viewing angles.
J10 is a back light connector that provides power to the back light. Q22 is used to enable the back

light. It was designed for power saving, but since the unit only operates on mains, this feature is not
currently used. VR3 controls the back light intensity in some back light modules, but this feature is not
in the modules currently fitted.

The frame store data can be saved quickly in the RAM that resides in the same address space, using
a block transfer. This is done by first programming the CS3 line to address space $A0000 - $AFFFF.
Since $B0000 - $BFFFF is now not the part of CS3, the FPGA will map it to DRAM. The whole 64K
page can be transferred from $A0000 (frame store) to $B0000 (RAM). The CS3 line is then
programmed for $B0000 - $BFFFF allowing $B0000 (frame store) page to be transferred to $A0000
(RAM) page. CS3 is then restored back to $A0000 - $BFFFF.

Restoring the screen is inverse of the above procedure.

FPGA (Drawing 056-03)

This device controls most of the circuitry not controlled by the processor. The program for the FPGA
resides in serial EEPROM, U8, and is downloaded once on power up. The processor monitors the
FPGADONE line to ensure that FPGA is programmed before commencing, otherwise, the DRAM will
not be operational.

Besides DRAM, the FPGA controls the LCD display, keypad, sound chip, and most of chip select
lines. These CS lines can be programmed in the processor, but this can be further qualified in the
FPGA if necessary. There are some spare serial enable lines for an additional 9 pin I/O port and the
mezzanine expansion board.

Keypad Circuit (Drawing 056-04)

The keypad consists of a matrix of 25 keys together with a separate paper feed key and on/off key.
The matrix is read by successively pulling the columns of the matrix low, KEYOUT[0..4], and reading
the state of the rows, KEYIN[0..4], to determine which key has been pressed. KEYOUT[0..4] and
KEYIN[0..4] are connected directly to the FPGA (see 056-03). The diodes, D7and D8, prevent
current flowing between the lines of KEYOUT[0..4] in the event of two keys on the same row being
depressed simultaneously. The resistor network, RN5, bias KEYIN[0..4] to VCC.
The on/off switch is used to apply the 5V from the external power supply to the circuit, VCC, and
turning the unit on. When the on/off key is depressed, the pull up resistor, R3, is pulled to ground.
R3, C17 and the schmitt input gate U3A form a de-bounce circuit whose output is applied to the clock
input of a bi-stable latch, U2B, that is powered directly from 5V and is active all the time the power
supply is plugged in. The output of the latch is applied to Q19 that in turn switches the series pass
transistor, Q20, to connect 5V to VCC. The latch, U2B, is also controlled by the set and reset inputs.
By taking the set input to 5V the unit will be turned on and by taking the reset input to 5V the unit will
be turned off regardless of the clock input. The set input is asserted by either the real time clock
alarm output, RTC_INT (see 056-05), or by the POWER_ON signal from the processor (see 056-02).
The reset input is asserted or by the POWER_OFF signal from the processor.

11

Real Time Clock Circuit (Drawing 056-05)

The real time clock, U16, is set by the processor during the factory set-up and may be adjusted using
the configuration module. The processor communicates with the real time clock through a bi­directional serial interface line, RCA_DATA, is clocked by RTS_CLK, and is selected by RTC_SEL.
The processor (see 056-02) generates these three control lines.

Sound Generator Circuit (Drawing 056-05)

The various sounds used in the spirometry tests are generated by U7 and associated components.
This device contains the addressable, pre-programmed sounds and is controlled by the lines,

SNDCNT[0..5], generated by the FPGA (see 056-03).

Printer Control Circuit (Drawing 056-06)

The printer driver uses a single chip micro-controller, U6, with on board program memory and RAM to
receive serial data from the microprocessor, U14, and control the printer mechanism. The
asynchronous serial lines PRNTDATA and PRNTACK are used by U14 to send and receive data to
and from U6. The signal BUSY generated by U6 is used to control the flow of data from U14 and PF
is generated by the paper feed key.
The printer mechanism uses stepper motors to drive the print head and paper feed. Each stepper
motor uses four lines, driven sequentially. The order in which the lines are driven determines the
direction of rotation. The thermal print head uses eight heater elements. The stepper motors and
print head signals are generated on port A and B (active high) of U6. Timing for Port A and B is
derived from an adjustable oscillator comprising of U9 and associated components. Adjusting VR2
varies the oscillator frequency and consequently the period for which the thermal elements are
energised. This in turn adjusts the print density. After the micro-controller is first reset, the print head
is driven to the left until the end switch is activated. The end switch consists of a normally closed pair
of contacts accessed at pins 1 and 2 of the printer connector J2. The end switch is detected by PD5
on the micro-controller.

Expansion (Drawing 056-05)

J8 and J12 are 10-pin header connectors that allow a mezzanine card to be fitted. This is used for

future customer special circuitry. Similarly, J14 is placed near the output plate on the right side of the
unit to allow customer special signals to be connected to the mezzanine board or to the processor
directly.

Printer Driver Circuits (Drawings 056-07 and 056-08)

The outputs from port A and B of U6 drives the two stepper motors and eight thermal elements
through the high current transistors Q1 to Q16 in common emitter configuration. Diodes D1 to D4 are
used to dissipate the inductive fly-back from the stepper motors and elements.

Power Supply

An external, dual voltage, supply provides 5.5 volts and 12 volts to socket J1 (Drawing 056-05). This
power supply has a universal input, is factory sealed, and contains no user serviceable parts.

12

Technical Support

Great Britain and World Headquarters

Micro Medical Ltd
PO Box 6
Rochester
Kent ME1 2AZ

Telephone + 44 (0)1634 360044
Fax [phone]
Web Site http://www.micromedical.com.uk
Email [e-mail]

Contact Micro Medical Ltd for the local agent in your region or country for local service:

13

Fault Analysis

The following analysis is only a guideline and should be carried out in a logical sequence. If the fault
is still apparent after the following suggestions then the unit should be fault found using the circuit
descriptions and circuit diagrams provided.

When the unit is turned on there is no display present

-Ensure charger is turned on at the mains.

FVC readings are low

-Remove turbine from transducer housing. Taking the turbine, move it slowly through the air and

check that the vane is not sticking.

The unit does not record any blows

-Inspect transducer housing connector for damage.

-Check that transducer housing lead is properly connected to the RJ11 socket.

-Remove turbine from transducer housing. Taking the turbine, move it slowly through the air and

check that the vane is not sticking.

-Blow into transducer housing and move transducer head cable around to check for breaks in the

cable.

14

UADS

S

B

P

N

UWR
URD

0.1UF

TP25

TURB2

VCC

1110

R33
10K

VPPEN

PWR_OFF­PWR_ON­RTC_SEL­RTC_CLK

RTC_DATA

FPGADONE
CS0
UCS1

UCS2
UCS3

ONLINE
PRNBUSY

R8

UCS5

VCC

VCC

C63

0.1UF

TP3
GND

VCC

C62
1UF

VCC

RESET-

D[0..15]

A[1..21]

R37
10K

LK1

1
2

LINK2

TP24
GND

VCC

U14

119

RESET

125

CLK2

44

NA#

35

BS8#

34

READY

98

NMI

79

SMI#

110

P1.0/DCD0#

111

P1.1/RTS0#

113

P1.2/DTR0#

114

P1.3/DSR0#

115

P1.4/RI0#

116

P1.5/LOCK#

117

P1.6/HOLD

121

P1.7/HLDA

133

P2.0/CS0#

134

P2.1/CS1#

135

P2.2/CS2#

136

P2.3/CS3#

137

CS4

0R

R54
10K

140
142
143

80
81
87
89
91
92
93
94

101
102
103
104

100

96
99

128
122
127
139
123

106

84
86
85

82
27

28
129
107

P2.4/CS4#
P2.5/RXD0
P2.6/TXD0
P2.7/CTS0#

P3.0/TMROUT0
P3.1/TMROUT1
P3.2/INT0
P3.3/INT1
P3.4/INT2
P3.5/INT3
P3.6/PWRDOWN
P3.7/COMCLK

INT4/TMRCLK0
INT5/TMRGATE0
INT6/TMRCLK1
INT7/TMRGATE1

BUSY#/TMRGATE2
PEREQ/TMRCLK2
ERROR#/TMROUT2

DRQ1/RXD1
DACK1#/TXD1
DRQ0/DCD1#
DACK0#/CS5#
EOP#/CTS1#

DSR1#/STXCLK
DTR1#/SRXCLK
RTS1#/SSIOTX
RI1#/SSIORX

TCK
TDI
TMS
TRST#
FLT#

FA80386EX25L

VCC

R53
470R

132

LED2
GREEN

CS6#/REFRESH#

VCC

C46

0.1UF

M/IO

SMIACT

WDTOUT

TDO

CLKOUT

ADS
W/R

LBA

BHE
BLE

UCS

43
32
31

D/C

29
37

RD

38

WR

4

45

A1
A2
A3
A4
A5
A6
A7
A8

A9
A10
A11
A12
A13
A14
A15
A16
A17
A18
A19
A20
A21
A22
A23
A24
A25

D0

D1

D2

D3

D4

D5

D6

D7

D8

D9
D10
D11
D12
D13
D14
D15

C47

0.1UF

A1

46

A2

48

A3

49

A4

52

A5

53

A6

54

A7

55

A8

56

A9

57

A10

58

A11

59

A12

61

A13

62

A14

63

A15

64

A16

66

A17

67

A18

68

A19

70

A20

71

A21

73
74
76
78
130
42
40

5

D0

6

D1

7

D2

8

D3

10

D4

12

D5

13

D6

14

D7

15

D8

17

D9

19

D10

20

D11

21

D12

22

D13

23

D14

25

D15

1
2
124

26
112

C45

0.1UF

C66

0.1UF

REFRESH

C74

0.1UF

TP20
UCS

C58

0.1UF

TP11
CS0

CS4

D0
D1
D2
D3
D4
D5
D6
D7

R29
33R

CS0

C21

0.1UF

A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
FA14
FA15
FA16
FA17
FA18
FA19
FA20
FA21

VCC

11

13
14
17
18

1

3
4
7
8

D[0..15]

A[1..21]

32
28
27
26
25
24
23
22
20
19
18
17
13
12
11
10

14

54
55
15

U17

G
CLK

1D
2D
3D
4D
5D
6D
7D
8D

74FCT377

VCC

VPPEN

CLK25MHZ

C52

0.1UF

8
7
6
5
4
3

2

UCS0
UBHE
UBLE

U20

A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
A14
A15
A16
A17
A18
A19
A20
A21

CE0
CE1
OE
WE
VPP

TE28F320J5100

1Q
2Q
3Q
4Q
5Q
6Q
7Q
8Q

R50
100K

C61

0.1UF

TP15
CS4

2
5
6
9
12
15
16
19

BYTE

D10
D11
D12
D13
D14
D15

STS

D0
D1
D2
D3
D4
D5
D6
D7

D8
D9

RP

WP
NC

NC

FA14
FA15
FA16
FA17
FA18
FA19
FA20
FA21

1 2

C50

0.1UF

33
35
38
40
44
46
49
51

34
36
39
41
45
47
50
52

31
53
16
56

29
30

VCC

U22A

SN74HC14

VSS

D0
D1
D2
D3
D4
D5
D6
D7

D8
D9
D10
D11
D12
D13
D14
D15

RESET-

C60

0.1UF

U19

25

A1

A0

24

A2

23

A3

22

A4

21

A5

20

A6

19

A7

18

A8

8

A9

7

A10

6

A11

5

A12

4

A13

3

A14

2

A15

1

A16

48

A17

17

A18

16

A19

26

UCS

28
11
13

28F400B5T80

U22D

9 8

SN74HC14

UUCS

TP16
VPP_EN

VCC

D9

5.6V

32

1

5V

Title

A3

Date: 5-Oct-1999 Sheet of
File: G:\tempd\056-02.sch Drawn By:

Q24
DTC114EKA

C4

0.1UF

Super Spiro - Processor circuit

Number RevisionSize

D0

A1

D1

A2

D2

A3

D3

A4

D4

A5

D5

A6

D6

A7

D7
A8
A9

D8
A10

D9
A11

D10

A12

D11

A13

D12

A14

D13

A15

D14

A16

D15
A17
A18

BYTE
CE
OE

RP

WE

WP

VPP

LED1

3

GREEN

R36

1

100R

056-02 1.0

TP4
GND

29

D0

31

D1

33

D2

35

D3

38

D4

40

D5

42

D6

44

D7

30

D8

32

D9

34

D10

36

D11

39

D12

41

D13

43

D14

45

D15

47

12
14

L
i

URD
UWR

1

R52

2

470R

VCC

23

Q23
FMMT549

R35
10K

TP28
GND

J3

DB9

VCC

R30
10R

FS2
300mA

1
6
2
7
3
8
4
9
5

J13

1
2
3
4
5
6

RJ11

INT1
INT2

STXCLK
SSIOTX

SSIORX
PRNTACK

PRNTDATA

J7

MOLEX 4PIN

U22F

13 12

SN74HC14

VCC

5

C41

0.1UF

1UF

12V VCC VCC

1
2
3
4

4

2

4

C51

2

16

9

17

8

1

14

C26

0.1UF

2
4
3

C25

0.1UF

R49
3K3

C72
1nF

R20
0R

VCC

VCC

U10

VCC

WDI

GND

MAX824_EUKM

U15

VCC
GND

50MHz

U4

R1 IN
R2 IN

T1 OUT
T2 OUT

EN

FON

C1+
C1 ­V+

MAX3223CAP

R48
3K3

C71

1nF

R51
470R

RES

RES

CLK

EN

RS232 TTL

TP21
TURB1

3 4

5 6

1

2

3

1

3

1

R1 OUT
R2 OUT

T1 IN
T2 IN

INVALID

FOFF

U22B

U22C

SN74HC14

LED3

RED

C2+
C2 -

V-

15
10

13
12

11

20

5
6
7

SN74HC14

3

UREADY

TP1

VCC

TX TP2RX

C24

C23

0.1UF

SND_EOM
RTC_INT-

J9

1
2
3
4
5
6
7
8
9

10

HEADER 5X2

U22E

SN74HC14

15

UD[0..15]

UA[1..21]

UBHE
UBLE

UWR

URD
UREADY
REFRESH

UCS0
UCS1
UCS2
UCS3
UCS5

INT1

INT2

CLK25MHZ

KEYIN[0..4]

KEYOUT[0..4]

VCC

R21

10K

FPGADONE

EXP[0..4]

SNDCNTL[0..5]

SEREN[0..4]

UD[0..15]

UA[1..21]

Flash Disk C8000 - CBFFF
Display A0000 - BFFFF
Display Reg (I/O) 200 - 20F
DRAM 00000 - DFFFF
SPARE

KEYIN[0..4]

KEYOUT[0..4]

U8

17

VP
CEO
RES

XC17512L

D

CLK

CE

14

6

VCC

R22

100K

EXP[0..4]

SNDCNTL[0..5]

SEREN[0..4]

VCC

R26

100K

VCC

TP27

TP29

TP26

VCC VEE

DISP_ CLK

MEM_D0
MEM_D1
MEM_D2
MEM_D3
MEM_D4
MEM_D5
MEM_D6
MEM_D7

DISP_ LD

DISP_ FR AME

J11

CON15

VCC

J10

1
2
3

1 3

VR3

10K

4
5

B_5B-ZR

Back Light Connector

TP22

VEE

D11

3

ZHCS750

R39

C75

680K

R40

36K

Title

Number RevisionSize

A3

Date: 5-Oct-1999 Sheet of
File: G:\tempd\056-03.sch Drawn By:

+

C73

100pF

22UF/35V

Super Spiro - FPGA circuit

056-03 1.1

15
14
13
12
11
10
9
8
7
6
5
4
3
2
1

VEE

26.4V

C70

0.1UF

33R
33R
33R
33R

RN6D

D0
D1
D2
D3
D4
D5
D6
D7

NC

Q22

DTC114EKA

C64

+

U21

7

4

MAX629ESA

VCC

TP23

DISP_ CNT L

13
14
15
17
18
19
20
21

1

21

L1

47UH

1
2

C44

C69

0.1UF

U13

XC4006E-3PQ160C_VIDEO

33

UD0
UD1
UD2
UD3
UD4
UD5
UD6
UD7

UA1
UA2
UA3
UA4
UA5
UA6
UA7
UA8
UA9
UA10
UA11
UA12
UA13
UA14
UA15
UA16
UA17
UA18
UA19
UA20

KEYIN0
KEYIN1
KEYIN2
KEYIN3

VCC

R34

100K

KEYIN4

KEYOUT0
KEYOUT1
KEYOUT2
KEYOUT3
KEYOUT4

2
4
8

EXP2
EXP3
EXP4

27

4K7

UD0

32

UD1

31

UD2

30

UD3

28

UD4

27

UD5

26

UD6

25

UD7

154

UA1

153

UA2

152

UA3

150

UA4

149

UA5

148

UA6

147

UA7

146

UA8

145

UA9

144

UA10

143

UA11

140

UA12

139

UA13

138

UA14

137

UA15

135

UA16

134

UA17

133

UA18

132

UA19

130

UA20

155

UBHE

156

UBLE

157

UWR

158

URD

159

READY

2

REFRESH

125

CS1

126

CS2

127

CS3

128

CS4

129

CS5

123

INT1

116

INT2

124

CLK25MHZ

113

KEYIN0

109

KEYIN1

112

KEYIN2

111

KEYIN3

115

KEYIN4

105

KEYOUT0

106

KEYOUT1

107

KEYOUT2

108

KEYOUT3

114

KEYOUT4

82

PROGRAM

117

DIN

119

CCLK

80

DONE

59

INIT

6

TDI

121

TDO

7

TCK

13

TMS

40

M0

38

M1

42

M2

EXP0

EXP1

18

36

RN9C

4K7

4K7

DISP_CNTL

DISP_LOAD

DISP_FRAME

MEMA_OE
MEMA_WE

MEMB_WE

SNDCNTL0
SNDCNTL1
SNDCNTL2
SNDCNTL3
SNDCNTL4
SNDCNTL5

DISP_D0
DISP_D1
DISP_D2
DISP_D3
DISP_D4
DISP_D5
DISP_D6
DISP_D7

DISP_CLK

MEM_A0
MEM_A1
MEM_A2
MEM_A3
MEM_A4
MEM_A5
MEM_A6
MEM_A7
MEM_A8

MEM_A9
MEM_A10
MEM_A11
MEM_A12
MEM_A13
MEM_A14
MEM_A15
MEM_A16

MEM_D0

MEM_D1

MEM_D2

MEM_D3

MEM_D4

MEM_D5

MEM_D6

MEM_D7

MEMA_CS

MEMB_CS
MEMB_OE

DRA0
DRA1
DRA2
DRA3
DRA4
DRA5
DRA6
DRA7
DRA8
DRA9

DRRAS
DRCASU
DRCASL

DROE

DRWE

SEREN0
SEREN1
SEREN2
SEREN3
SEREN4

43
44
45
46
47
48
49
50

52
53
54
55

83
77
75
73
71
68
66
64
67
69
76
72
62
65
58
57
56

85
87
89
92
90
88
86
84

78
74
63

95
94
93

22
21
18
17
4
5
8
9
11
12

23
15
16
14
24

37
36
35
34
104
102
96
99
97
98
103

0.1UF

MEM_A0
MEM_A1
MEM_A2
MEM_A3
MEM_A4
MEM_A5
MEM_A6
MEM_A7
MEM_A8
MEM_A9
MEM_A10
MEM_A11
MEM_A12
MEM_A13
MEM_A14
MEM_A15
MEM_A16

MEM_D0
MEM_D1
MEM_D2
MEM_D3
MEM_D4
MEM_D5
MEM_D6
MEM_D7

4 5

33R

3 6

33R

2 7

33R

1 8

33R

4 5

33R

3 6

33R

1 8

33R

2 7

33R

SEREN0
SEREN1
SEREN2
SEREN3
SEREN4
SNDCNTL0
SNDCNTL1
SNDCNTL2
SNDCNTL3
SNDCNTL4
SNDCNTL5

TP9

MEM A_ S EL

4 5

33R

1 8

33R

2 7

33R

3 6

33R

3 6

33R

4 5

33R

2 7

33R

1 8

33R

C49

C42

C53

C43

A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
A14
A15
A16

OE
WE
CS2
CS1

100K

0.1UF

D0
D1
D2
D3
D4
D5
D6
D7

D8

D9
D10
D11
D12
D13
D14
D15

Contrast

13

C48

C39

0.1UF

0.1UF

13

D0

14

D1

15

D2

17

D3

18

D4

19

D5

20

D6

21

D7

1

NC

2

UD0

3

UD1

4

UD2

5

UD3

7

UD4

8

UD5

9

UD6

10

UD7

35

UD8

36

UD9

37

UD10

38

UD11

40

UD12

41

UD13

42

UD14

43

UD15

6

VR1

-

5

+

C59

0.1UF

0.1UF

MEM_A0
MEM_A1
MEM_A2
MEM_A3
MEM_A4
MEM_A5
MEM_A6
MEM_A7
MEM_A8
MEM_A9
MEM_A10
MEM_A11
MEM_A12
MEM_A13
MEM_A14
MEM_A15
MEM_A16

LCAS

TP17

­+

VCC

18
19
20
21
24
25
26
27
28
29

15
31
32
30
14

4 8

0.1UF

12
11
10

9
8
7
6

5
27
26
23
25

4
28

3
31

2
24

29
30
22

U18

KM416C1200BT-6

C33

0.1UF

U5A

1

U11

KM681000BLG-7

A0
A1
A2
A3
A4
A5
A6
A7
A8
A9

RAS
UCAS
LCAS
OE
WE

0.1UF

VCC

TP10

MEMB_ SEL

RAS

UCAS

TP18

TP19

2
3

LM2904D

C28

0.1UF

MEM_D0
MEM_D1
MEM_D2
MEM_D3
MEM_D4
MEM_D5
MEM_D6
MEM_D7

U5B

LM2904D

C38

0.1UF

C67

C31

0.1UF

4 5
3 6
2 7
1 8

MEM_A0
MEM_A1
MEM_A2
MEM_A3
MEM_A4
MEM_A5
MEM_A6
MEM_A7
MEM_A8
MEM_A9
MEM_A10
MEM_A11
MEM_A12
MEM_A13
MEM_A14
MEM_A15
MEM_A16

C68

0.1UF

RN8D

33R
33R
33R
33R

4 5
3 6
2 7
1 8

12
11
10

9
8
7
6

5
27
26
23
25

4
28

3
31

2
24

29
30
22

RN7D

33R
33R
33R
33R

1 8
2 7
3 6
4 5

U12

A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
A14
A15
A16

OE
WE
CS2
CS1

KM681000BLG-7

0.1UF

VCC

32

1

BKLGTEN

C65

0.1UF

47 UF /1 0 V

86

1

SHDN
ISET
REF
POL

LX

FB

C34

0.1UF

5
3
2

7

R38

1M0

16

PWR_ON-

N

A

PWR_OFF-

47UF/16V

5V

RTC_INT-

l
t

FS3

1A

C3

C19

+

0.1UF

MINIRELAY (RS345-022)

D5

3

ZHCS750

2 3

5V

R5
100K

R6
OR

32

5V

R4
100K

32

Q18
FMMT489

Q17
FMMT489

R12
8K2

R9
8K2

R10
2K0

R7
2K0

C20

0.1UF

C18

0.1UF

1

1

1 2

4 5

2

1

Q20
FMMT717

1

R11
100R

32

8

9

U3B

5
6

78 RL1

Q19DTC114EKA

4093

1

U3C

4093

C27

+

47UF/16V

10

4

VCC

13

12

C22

0.1UF

C57

+

47UF/16V

KEYOUT[0..4]

KEYIN[0..4]

8

U2B

9

S

D

Q

CLK

Q

R

4013

10

U3A

11

3

4093

5V

KEYOUT[0..4]

KEYIN[0..4]

1
2

D7

IMN10

9

esc

del

.

ON/OFF

1
2
3

1

2

3

4

F1

F2

F3

1

4

7

F4

2

5

890

F5

6

3

PAPER
FEED

6

KEYOUT0
KEYOUT1
KEYOUT2

KEYOUT3

KEYOUT4

KEYIN0

KEYIN1

5V

R3
100K

5V

C17

0.1UF

KEYIN2

KEYIN3

KEYIN4

PAPERFEED-

VCC

4 5

1 8

3 6

2 7

6

5
4

RN5D

RN5A

RN5C

RN5B

R16

D8

IMN10

100K

100K

100K

100K

100K

5

4

1

2
3

8

5

7

6

10

12

13
11

J6

KEYPAD

6

14

C16

0.1UF

3

D5Q

VCC

CLK

GN D

4

7

U2A

1

S

2

Q

R

4013

147

U3D

12

13

4093

17

C15

0.1UF

11

Title

A3

Date: 5-Oct-1999 Sheet of
File: G:\tempd\056-04.sch Drawn By:

Super Spiro - Keypad circuit

Number RevisionSize

1.0056-04

RTC_SEL­RTC_CLK

RTC_DATA

SNDCNTL[0..5]

VCC

R31
10K

SNDCNTL[0..5]

TP12

VCC

VCC

C56

0.1UF

C54
33PF

TP13

TP14

RTC_ D A TA

RTC_SCL K

RTC_SEL

X2

32.786KHz

1

2

3

A0

VDD

OS CI

6

5

SCL

SDA

U16
PCF8583T

OS CO

INT

VSS

3

8

7

4

D10

BAV70

VCC

SEREN[0..4]

BAT1

1

2

R32
10K

3.6V

1 3
2

C55

0.1UF

RTC_INT-

EXP[0..4]

SEREN[0..4]

SEREN4

SEREN0

SEREN1

SEREN2

SEREN3

EXP[0..4]

R2
10K

STXCLK

SSIOTX

SSIORX

C8

0.1UF

U1

3

VDD

2

DQ

1

GND

DS1821

VCC

Resettable Fuse

FS4

R44

0R

R41

0R

R45

0R

R42

0R

R46

0R

R43

0R

R47

0R

300mA

VCC

J14

DB9

1
6
2
7
3
8
4
9
5

12V

J12

1
2
3
4
5
6

Header for expansion card

7
8
9
10

HEADER 10

SND_EOM

SNDCNTL1

SNDCNTL0
SNDCNTL2
SNDCNTL3
SNDCNTL4
SNDCNTL5

TP5
SND_EN

VCC

C36

0.1UF

1

Speaker Output

2

VCC

C35

+

47UF/16V

C32

0.1UF

J5
CON3

VCC

1
2
3

Record Input

R13

R15

10K

10K

U7

ISD2532S

1

A0

2

A1

3

A2

4

A3

5

A4

6

A5

7

A6

9

A7

10

A8

23

CE

24

PD

27

P/R

25

EOM

22

OVF

26

XCLK

VCCD
VCCA

VSSD
VSSA

AUXIN
ANAIN

ANAOUT

MICREF

AGC

28
16

12
13

14

SP+

15

SP-

11
20

21

18
17

MIC

19

C29

0.1UF

J4

Molex 2 pin R/A

C11

0.1UF

EXP0
EXP1
EXP2
EXP3
EXP4

C12

+

47 U F /16V

12V 5V

FS1
500mA

12V

VCC

J8

1
2
3
4
5

Header for expansion card

6
7
8
9
10

HEADER 10

J1
CON4

1

Power Connector

2
3
4

Resetable Fuse.

Title

Super Spiro - RTC circuit

Number RevisionSize

A3

Date: 5-Oct-1999 Sheet of
File: G:\tempd\056-05.sch Drawn By:

056-05 1.0

18

5V

R23
100K

C40

820pF

U9A

1 2

4069UB

RESET-

PRNTDATA
PRNTACK

PF­ONLINE-

U9B

3 4

4069UB

TP7
PRNT_DATA

U9E

11 10

4069UB
U9C

5 6

4069UB

VCC

R19
10K

PAPERFEED-

C37

X1

33PF

4.0MHz
R14
10K

U9D

9 8

4069UB

C30

33PF

43
42

1
2

41

32
33
34
35
36
37

39

4

3
18
23
40

R17
1K

U6

OSC1

PA7

OSC2

PA6
PA5
PA4

RST
IRQ

PA3
PA2

TCAP

PA1

TCMP38PA0

PB0

PD0/RDI

PB1

PD1/TDO

PB2

PD2/MISO

PB3

PD3/MOSI

PB4

PD4/SCK

PB5

PD5/SS

PB6

PD7

PB7

PC0
PC1
PC2

NC

PC3
PC4

NC

PC5

NC

PC6

NC

PC7

NC

MC68HC05C9ACFN(44)

TP6
PRNT_CLK

C5

0.1uf

OUT0

OUT0
OUT1

OUT1
OUT2

OUT2
OUT3

OUT3
OUT4

OUT4
OUT5

OUT5
OUT6

OUT6
OUT7

OUT7

VCC

R18
10K

R1
1K

J2

5V

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25

CON25

Head Motor

Paper Feed Motor

0.1UF

5
6
7
8
9
10
11
12

13
14
15
16
17
19
20
21

31
30
29
28
27
26
25
24

47UF/ 1 6 V

056-07 056-07.SCH

OUT0

IN0

OUT0

IN0

OUT1

IN1

OUT1

IN1

OUT2

IN2

OUT2

IN2

OUT3

IN3

OUT3

IN3

OUT4

IN4

OUT4

IN4

OUT5

IN5

OUT5

IN5

OUT6

IN6

OUT6

IN6

OUT7

IN7

OUT7

IN7

BUSY

TP8
PRNT_BUSY

P
i
n

C2

+

C1

C7

0.1UF

C6

+

4 7 U F / 1 6 V

IN0

IN0
IN1

IN1
IN2

IN2
IN3

IN3
IN4

IN4
IN5

IN5
IN6

IN6
IN7

IN7

056-08 056-08.SCH

R24
22K

R25
150K

Q21

3 2

FMMT489

1

1 3

VR2
20K

D6

ZHCS750

R27
2K2

R28
22K

23

U9F

13 12

4069UB

VCC VDD

Title

Super Spiro - Printer circuit

Number RevisionSize

A3

Date: 5-Oct-1999 Sheet of
File: G:\tempd\056-06.sch Drawn By:

056-06 1.0

19

5V

D1
UMN1

Q3

32

5V

13245

Q4

FMMT489

1

D2
UMN1

32

Q1

32

FMMT489

1

Q2

32

FMMT489

1

FMMT489

1

RN1

IN0
IN1
IN2
IN3

IN4
IN5
IN6
IN7

8
7
6

8
7
6

1
2
3
45

1K0
RN2

1
2
3
45

1K0

Q5

FMMT489

1

32

FMMT489

1

C10

0.1UF

13245

Q6

32

C9

0.1UF

OUT0

OUT1

OUT2

OUT3

OUT4

OUT5

Q7

FMMT489

1

32

Q8

32

FMMT489

1

OUT6

OUT7

Title

A3

Date: 5-Oct-1999 Sheet of
File: G:\tempd\056-07.sch Drawn By:

Super Spiro - Printer driver 1

Number RevisionSize

056-07 1.0

20

5V

D3
UMN1

Q11

32

5V

13245

13245

Q13

FMMT489

1

D4
UMN1

32

Q9

32

FMMT489

1

Q10

32

FMMT489

1

FMMT489

1

RN3

IN0
IN1
IN2
IN3

IN4
IN5
IN6
IN7

8
7
6

8
7
6

1
2
3
45

1K0

RN4

1
2
3
45

1K0

FMMT489

1

Q12

32

FMMT489

1

C14

0.1UF

Q14

32

C13

0.1UF

OUT0

OUT1

OUT2

OUT3

OUT4

OUT5

FMMT489

1

21

Q15

32

Q16

32

FMMT489

1

OUT6

OUT7

Title

Super Spiro - Printer driver 2

Number RevisionSize

A3

Date: 5-Oct-1999 Sheet of
File: G:\tempd\056-08.sch Drawn By:

056-08 1.0