Sharp MZ-1R12 User manual

MZ-IR12
SHARP
SERVICE MANUAL
COD E : 0 0 Z M Z 1 R 1 2 / / -E
S-RAM Board
MODEL MZ-1R12
(For MZ-700)
~-----------------------CONTENTS------------------------~
1. OUTLINE "'"''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''"""""""""""""""""""""'''''''''''''' 1
2. FUNCTIONS """'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''' ............"....... """ ....." .. """,,. 1
3. CONNECTION METHOO ....." .. """ .... """ ....." ..... ""." .. " .. ",,............................ ,, ... "'''''''''''''''''''''''''' 1
4. SPECIFICATIONS '''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''"'''''''''''''''''''''''''''''''' 1
5. BLOCK DIAGRAM ................................................."........................." ............ '''''''''''''''''''''''''''''''''''' 1
6. DIP SWITCH SETIING '"''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''""""'''''''''''''''''''' 1
7. TROUBLESHOOTING ".......".......".........................".............. "" ................"......................................... 2
8. CONNECTOR SIGNAL TABLE """"'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''' ........."......... 2
9. PART LOCATIONS DIAGRAM ''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''""""""'''''''''''' 3
10. CIRCUIT DIAGRAM """""""'"''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''""""'''''''''''''''''''''' 4
11. PARTS LIST AND GUIDE ................................................"................"................"................" "............ 7
SHARP CORPORATION

MZ-IR12
1. OUTLINE
The MZ-1R12 (S-RAM board) can be used with the MZ-700
either for a boot loader function or as an external memory.
The MZ-1U03 is needed to connect this card to the MZ-700.
Z.FUNCTI6NS
(1) With the M7-700...capahilit)l-f.o,,-b00tiFf§-slmlfltaneotf
S
with the supply of power.
(2) Composed of CM OS-RAMs with backup battery func
tion for capability for use as a static memory. -
s
(3) Built-in address counter provides automatic add res
incrementation for each reading or writing operation
thus simplifying reading and writing of continuou ,
s
data:····
3. CONNECTION METHOD
After confirming that the power supplies of the main un
and the extension unit (MZ·1U03) are OFF, insert this car
into the slot of the extension unit.
To turn on the pawe ,
first turn on .the power of the extension unit and then turn
on the power supply the MZ·700.
it
d
r
4. SPECIFICATIONS
(1) Memory capacity
(2) Data hold time
(3) Charging time
(4) Power supply
(E) Elements used
32K bytes
approx. 44 days
(approx.
1.E months)
100% charge in 29 hours
E VDC ± 10%
CM OS static RAMs
(2K bytes x 16)
5. BLOCK DIAGRAM
AO A7
10RQ
AD
00-07
AO-A15 f-:..---/
Note The address counter is incremented automati-
cally with the input/output of data.
-2-
6. DIP SWITCH SETIING
Eight-bit port addresses are output from the ZSO·CPU.
Because three consecutive port addresses are used with
this card, the six high-order bits
of the eight-bit address
signal are selected by the switch
in order to set the port
address.
. -.
--- -- ---
Segment Meaning Factory setting Remarks
1 A2
OFF
I us~a or setting the port
address.
2 A3 ON
Used for setting the port
address.
3 A4 ON
Used for setting the port
address.
Used for setting the port
4
AS
ON
address.
5 A6
ON
Used for setting the port
address.
6
A7
ON
Used for setting the port
address.
7 MSEL ON
Selection of the
P·ROM.
8
An ON
P·ROM internal address
setting.
The relationship between the switch position and the logic
level
is shown below. The port addresses of this card are
where the logic levels of
the address and of the switch are
the same.
Switch position Logic level
ON
1
OFF
0
Note that the port addresses set at the factory are F8,
F9, and FAH.
The following is the meaning of the addresses selected by
address bits AO and Al.
A1 AO OUT command IN command
0 0 Address high-order Address counter reset
setting
0 1 Address low-order Data reading
setting
1 0 Data writing Not in use
1 1 Not in use Not in use
MSEL and A 11 setting
This S·RAM board has a
PROM (for booting the MZ-700)
allocated to addresses $ESOOH - EFFFH. Although this
PROM has a memory capacity of 4K bytes, there is only
2K_hytes of allocated memory space- .. -For-this· reason, the
All bit of the PROM address line is switched ON·OFF to
switch the address and make effective use of the PROM.
Signal Segment Meaning when ON Meaning when OFF
MSEL 7 ROM allocated. ROM cut off.
All
8
PROM $0000 - $07FF $0800 - $OFFFF ROM
ROM is selected. is selected.

7, TROUBLESHOOTING
START
Check CMOS S-RAM terminal voltage
Check S-RAM reading/writing.
(Usa R!W check program.)
NG
NG
RfW check program for the MZ-700
'0 INPi$F8,A:A=85
20 FOR 1=0 TO 32767
30
DU1#$FA,A:NEXT I
40 PRINT"READ":INp#SF8,A
50
FOR 1=0 TO 32767
Check battery voltage.
ChEick address decoder circuit.
Check S-RAM.
Check address counter drcuit.
60 INP~$F9,A:IF A=65 THEN 80
70 GOTD 90
80
NEXT I :PRINT"CHECI< ... 01<" :END
90 PRINT"ERROR ... ADDRESS=" ;HEX$ [! ) ; "H"
-3-
8, CONNECTOR SIGNAL TABLE
Interface Signals
Number Input
Signal name of Polarity
or Function
signals output
*MREQ8 1 N I
Memory request signal
.-
- - --
*IORDS 1 N I liD request Signal
*RDB 1 N I Read
command
*WRB 1 N I
Write command
--
ADS - A158
8 P I
Memory or 1/0 address
select signal
DOB - D7B 16 P I/O
Data 110 address select
signal
Interface pin locations
No. A (parts side) B (solder side)
1
2
3
4
5
6
7
8
S
10
11
12
13
14
15
16
17
18
19
20
21
22
22 ............ ..
22
+5 V +5 V
02B
D3B
D1B D4B
DaB D5B
GND D6B
A15B D7B
A14B
A13B
A12B "WRB
A,1B
*RDB
Al0S *IORDB
AS8
*MREQ8
A8B GND
A7B
AS8
A58
A4B
A38
A2B
A1B
AaB
GND GND
(parts sidel
3.2, 1
3.2,1
parts side (AI
parts side (SI

9. PART LOCATIONS DIAGRAM
LSHARP MZ-IRIZ;'I!
-4-

10. CIRCUIT DIAGRAM
*RDa~
-
*WRB L eNI-lIS
A7B~
AGB I eNI_Ala
rcN"JAi61
Atll LCNI-Al1
ASB LeNt-AIS
A2B I eNI-AIS
UORQB I eNI-llll
AGS eNl AZI
AlB I CN1-A20
UdREQB I CNt-BIZ
AI5B eNI-AS
AUB J eNI-A7
AISII I CNI-AB
AI2B~
AIIB I eN! AIO
(2-117 )
CSO-*C515
( 2-85
) ABO-ABIC
( 2-8 4) OBO-OB7
1-1'15) *\\,A~
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CN1-A21
CNI-A20
r-----
CNI-Ale
-
CNI-AI8
r---
CNI-AI?
-
CNI-Ala
-
CI;]-AI5
r----
CNI-AI4
-
CNI-AIS
r---
CNI-AI2
-
CNI-AIl
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LSU
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15 UP POW~''-'A",c(-:;;;:-+-OABO-ABIO(a-AI)
1 OA o~ 2 ABJ +5V
DB W~ OB
10 DC ,.s OC" AB2
9 DD 19~OD 1 ADS
11 LOAD
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DGB CN1_B~
D7B eNI-lI6
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17 1I A I
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I-
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(I_B6) *WAI o,~,..-------'
(1-116) *WAO o,~,..-------;
ABIO
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f-f----~'~"
VI 14*CSg
VB 13*C51
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(2-A5) ZOI ~::======~"~~~--1-t-1-!
(1-1I6)*RAOq 13
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MZ-IR12

PARTS LIST
PRICE
NEW
PART
No.
PART CODE PART
PART
NAME
RANK
MARK
RANK
-
1 V H i H
Ma 1 1 6 L P 3 N AZ
B STATIC
RAM
[M22-M31,M15-M20J
2 vH i
SN74LSOO-l
AE
B
IC
IM61
3 vH i
SN74LS14-1
AM
B
IC
IM71
4 v H i
SN74LS30-1 AE B
IC
IM21
S vH i SN74LS155N AP
B
IC
IM131
6 vH i SN74LS193N AR
B
IC
IM4,S,~
7 V H i SN74LS245N AR
B
IC
IM11
B vH i SN74LS136N AE
B
IC
IM3,M81
9 vH i
TC40HOOOPl AF
B
IC
IM141
10 vH i
TC40H138Pl AN
B
IC
IM11,M121
11
V S 2 SA 6 7 3 -c / 1 A AC
B Transistor
IQ21
12
VS 2 se' 2 1 3 -c -1
AD
B Transistor
IQ11
13
VHD1S2076A/-l
AB B
Diode
IDlI
14 V R 0 -5 T 2 E Y 1 0 1 J
AA C Resistor (114W 100) IR10,1B-2SI
1S V R 0 -5 T 2 E Y 3 9 1 J
AA C Resistor (1/4W 390)
IR81
16 V A 0 -5 T 2 E Y 4 7 1 J
AA B Resistor (1/4W 470)
IR7,R121
17 V R 0 -5 T 2 E Y 2 0 2 J
AA e Resistor (1/4W 2K)
IR91
18 V R 0 -5 T 2 E Y' 0 2 J
AA e Resistor (1/4W 1 K)
IR1 ,3,14, 1S,4,21
19 V R 0 -5 T 2 E Y 5 1 2 J
AA e Resistor (1/4W 5.1 K)
IR16,R111
20 V R D -5 T 2 E Y 5 1 3 J
AA e Resistor (1/4W 51 K)
IRS,61
21 V R 0 -5 T 2 E Y 4 7 4 J
AA e Resistor (1/4W 470K)
IR171
22 RMPTC847 2 QCKB
AD e Block resistor (4.7 kO x 8)
INR11
23 VCKYPUl HB221 K
AB e Capacitor (50V, 200p) IC4,11,12,8,SI
24
VCKYPUl HB, 02K AA C Capacitor (SOV, 1000p)
le1S1
VCKYPU1 HF1 04Z AB
2S
C Capacitor (25V, 0.1ft)
[C1 0,14, 16-18,20-221
VCKYPU1 HF1 04Z AB C Capacitor (25V, 0.1ft)
[C1 ,2,6,7,9,13,191
26
VCEAAU1CW227Q AC
C Capacitor (16V, 220ft)
IC31
27
OAE322649/1/1 BC
, N B Dip switch
28
OAE3283841111 8C N 8 Battery
(NI-CD)
29 OAE1R12CTN/II AZ N D Carton
30
OAE1R120/MIII BF N D Instruction Manual
-7-

~~~MZ-IRl~~~~~~~~~-
SHARP
SHARP CORPORATION
Industrial InstrumentGroup
Reliability& Quality Control Cent.
Yamatokoriyama, Nara 639-11, J,
October 1984 Printed in Japa,