Casio SF-7900 Specifications

(with price)
SF-7900(LX-522)
OCT. 1994
SF-7900
R
CONTENTS
SPECIFICATIONS ................................................................................................................ 1
TO REPLACE THE BATTERY ............................................................................................. 2
TO CHECK THE MEMORY CAPACITY ............................................................................... 2
ERROR MESSAGE ............................................................................................................... 3
TO RESET THE SF UNIT'S MEMORY ................................................................................. 4
TO SAVE THE DATA TO ANOTHER UNIT ......................................................................... 5
BLOCK DIAGRAM ................................................................................................................ 8
CIRCUIT EXPLANATIONS
System chart................................................................................................................. 9
Power supply circuit .................................................................................................. 10
CPU pin description (HD62076C03).......................................................................... 12
Gate array pin descriptions (SSC2571F0A) ............................................................. 13
Operation program ROM pin descriptions .............................................................. 14
RAM pin descriptions ................................................................................................ 14
DIAGNOSTIC OPERATION ................................................................................................ 15
TROUBLESHOOTING ........................................................................................................ 20
SCHEMATIC DIAGRAM
Main PCB .................................................................................................................... 21
Display PCB ................................................................................................................ 22
Key Matrix ................................................................................................................... 23
Key Matrix (Display side)........................................................................................... 24
PARTS LIST ........................................................................................................................ 25
ASSEMBLY VIEW .............................................................................................................. 27
SPECIFICATIONS
Main modes:
Telephone Directory, Business Card Library, Memo, Schedule Keeper,
Expense, Reminder, Calendar, Home Time, World Time and Calculator
Data storage:
Storage and recall of telephone, business card, memo, schedule, expense,
reminder data, calendar display, secret area; editing; memory status display
Clock:
World Time; reminder alarm; schedule alarm; daily alarm; accuracy under
normal temperatures: ±3 seconds average
Calculation:
12-digit arithmetic calculations; arithemetic constants (+, –, ×, ÷); independent memory; percentages; square roots; 24-digit approximations; date calculations; other mixed calculations
General:
Display element:
Memory capacity:
Main component:
Power supply:
Power consumption:
Battery life:
16-column × 8-line LCD
128kB (103436 bytes)
LSI
3 lithium batteries (CR2032)
0.07 W
Approximately 170 hours continuous operation in Telephone Directory;
approximately 130 hours repeating one minute of input and 10 minutes of
display in Telephone Directory; approximately 12 months for memory back
up
Auto power off:
Approximately 6 minutes after last key operation
Operating temperature: 0°C ~ 40°C (32°F ~ 104°F)
Dimensions:
Unfolded: 9.55H × 144W × 155D mm (3/8"H × 5 11/16"W × 6 1/8"D)
Folded:
15.95H × 144W × 77.5D mm (5/8"H × 5 11/16"W × 3 1/16"D)
Weight:
124g (4.4 oz.)
• Design and specifications are subject to change without notice.
Current consumption:
Power switch
OFF
TYP. [µA]
MAX [µA]
11.7
37.1
ON
1,670.0
13,711.0
ON (Operating)
4,520.0
16,645.0
—1—
TO REPLACE THE BATTERY
To replace the batteries
1.
Loosen the screw on the back of the SF unit that holds the battery compartment cover in
place, and remove the cover.
Caution
In the next step, be sure to remove only one battery at a time.
Otherwise, you will lose all data stored in memory.
2.
Loosen the screw that secures one of the three battery holders
in place and remove the battery holder.
3.
Replace the old battery with a new one, making sure that the
positive (+) side of the new battery is facing up (so you can see
it).
4.
Screw
RESET
+
Replace the battery holder and secure it by tightening its screw.
TO CHECK THE MEMORY CAPACITY
Hold down CAPA to display a screen that shows the current memory status. To clear the memory
status display, release CAPA .
CAPACITY
Remaining memory
capacity
FREE
USED
76420Bytes
27016Bytes
0
50
26%
100
Total number of characters stored in memory
—2—
ERROR MESSAGE
Message
Meaning
Action
DATA ITEM
NOT FOUND!
NO DATA
IN MEMORY!
Search operation
attempted when no data
is stored in memory.
Current search operation
cannot be performed.
DATA ITEM
NOT FOUND!
Data specified in search
operation does not exist
in memory.
Change specification or
cancel search.
MEMORY FULL!
No more room in memory Delete unnecessary data
for storage of data.
items from memory.
ALARM TIME
ALREADY USED!
Attempt to set a Schedule Set a different alarm time
Keeper alarm time that
or change the existing alarm
is already used for
time to another one.
another entry.
ALARM TIME
ALREADY PASSED!
Attempt to set a Schedule Set a different alarm time
Keeper alarm time for a
(for a future time/date.)
time/date that is already
passed.
SECRET DATA!
Alarm for a secret
Enter the secret memory
memory area data item is area to view details of the
sounding.
alarm.
PASSWORD
MISMATCH!
Attempt to enter the
Use the correct password.
secret memory area
using a password that
does not match the one
preset for the secret area.
TRANSMIT ERROR!
Error during data
communications.
Cancel the data
communications
operation and try again.
DATA ERROR!
CONSULT THE
OWNER'S MANUAL!
Data corrupted by strong
impact, electrostatic
charge, etc.
See page 11 of the
owner's manual.
SAME TYPE
ALREADY USED!
Attempt to store a label
that is identical to one
already stored.
Use a different label.
STOPPED!
—3—
TO RESET THE SF UNIT'S MEMORY
The following procedure erases all data stored in the memory of the SF unit.
Perform the following operation only when you want to delete all data and initialize the settings of the SF
unit.
Remember – you should always keep copies of important data by writing it down, by transferring it to a
personal computer or other SF unit.
To reset the SF Unit's memory
RESET button
RESET
1. Switch on power and press the RESET button with a thin, pointed object.
Warning!
The next step deletes all data stored in the SF unit's memory. Make sure that you really want
to delete the data before you continue!
2. Press Y to reset the memory and delete all data or N to abort the reset operation without
deleting anything.
Following the reset operation described above, the Home Time display appears and the SF unit
settings are initialized as noted below.
Home Time:
World Time:
Daily Alarm:
Sound:
Character input:
12-hour format
JAN/1/1995
AM/12:00 00
Washington D.C.
12:00 PM
Schedule alarm → ON
Reminder alarm → ON
Daily alarm → OFF
Key → ON
CAPS
—4—
TO SAVE THE DATA TO ANOTHER UNIT
SF-7900 can transfer customers data to another SF-7900 with memory protection only when replacing
the LCD or the outer case.
How to transfer the data
* Before connecting the cable (SB-60 or SB-62), be sure to reset the slave unit to clear all
data.
1) Turn off the power switch and connect the two units using the cable (SB-60 or SB-62) as shown in
the drawing.
2) Turn on the power switch of both units.
3) The slave unit must be set the date of Feb. 3rd, 1901 into the memory under the calculator
mode.
Operation:
CAL
ON
1
DATE 2
DATE 3 DATE M+
CLEAR
If you don't set the date, the "PASSWORD" isn't transferred to the slave unit.
4) Check the hardware parameters, and if the units have another condition, reset as follows.
To change the hardware
parameters, press the
,
,
and
cursol keys.
SET UP
PARITY
BIT LENGTH
To set the hardware
parameters, press the SET
key.
BPS
TEL
FUNCTION FUNCTION 4 3
—5—
NONE
7
9600
5) Set up the slave unit.
1
While in the Calendar Display, Telephone Directory, Business Card Library, Memo Mode, or
Schedule Keeper, press the FUNCTION key followed by 4 to select " DATA COMM", and
the following menu appears.
TEL
FUNCTION
1 SEND
4
2 RECEIVE
3 PRINT
4 SET UP
2
Press 2 to select "RECEIVE" and the following display appears to indicate that the slave unit
is ready to receive data.
2
DATA
RECEIVE OK
TO STOP
PRESS [ESC]
6) Set up the customer's unit.
1
While the transmitting unit is in the Calendar Display, Telephone Directory, Business Card
Library, Memo Mode, or Schedule Keeper, press the FUNCTION key followed by 4 to
select "DATA COMM", and the following menu appears.
TEL
FUNCTION
4
1 SEND
2 RECEIVE
3 PRINT
4 SET UP
2
Press 1 to select "SEND" and the following menu appears.
SEND
1 ONE ITEM
1
2 MODE DATA
3 ALL DATA
—6—
3
Press 3 to select "ALL DATA". The following display appears to confirm if you wish to
proceed.
SEND ALL
3
DATA ITEM ?
SET / ESC
4
Press the SET key to proceed with the data transmission, or press ESC if you wish to
cancel.
NOW SENDING !
SET
TO STOP, PRESS
ESC
Data are transmitted in the sequence of Telephone Directory data, Memo data, Reminder data,
Schedule Keeper data and Calendar data.
* The following messages appear on the display of the receiving unit when a problem occurs during
data communications. All data transferred up to display of the message is retained in memory, but
data communication is terminated.
TEL
MEMO
SCHEDULE
HOME/WORLD
REMINDER
If one of the following error messages appear, press the
,
,
,
,
CAL
CALENDAR
,
keys, to clear the error message. Then, take corrective action and try data
communication again.
Message
Meaning
Action
TRANSMIT ERROR!
STOPPED!
Error during data
communications.
Cancel the data
communications operation
and try again.
DATA ERROR!
CONSULT THE
OWNER'S MANUAL!
Data corrupted by strong
impact, electrostatic
charge, etc.
See page 9 of the owner's
manual.
—7—
,
BLOCK DIAGRAM
LCD
96 × 64 dots
CD760-TS
S16~S95
S0~S15
C0~C63
KEYBOARD
PCB-L589-E4
LCD DRIVER
LCD DRIVER
MSM6585AV
-Z-358B
MSM6585AV
-Z-358B
PCB-L589-E2
DATA BUS
TO KEYBOARD
LCD DRIVE VOLTAGES
V1 ~ V5
CPU
HD62076C03
LSI1
VDD
OPEN (OFF)
LOCK (ON)
ROM
MAIN SWITCH
(Operation Program)
GND
LSI5
Power supply circuit
RAM
MSM51008AFP-10LL
LSI3
GATE ARRAY
SSC2571F0A
LSI2
INTERFACE FOR
DATA TRANSMISSION
& DATA RECEPTION
—8—
PCB-L522-1
CIRCUIT EXPLANATIONS
System chart
The circuitry operates in the following order:
VDD
1
VDD
11
Low battery
detector
VSS
circuit
10
Gate array
SSC2571F0A
Power supply
IC4
(Pin24)
V1~V5
for LCD
VOB
VIN
PDN
SWO
OEO
(Pin35) (Pin62)
MSO
(Pin28)
(Pin49)
(Pin58)
3
2
12
13
"L"
"L"
"L"
"L"
"H"
VDD
2 MHz
9
(Pin45)
8
(Pin41)
V2ON
OSCI
(Pin40)
OSCO
VDD1
VDD
(Pin70)
INT0
OFF
CPU
GND
MAIN SWITCH
SW
HD62076C03
(Pin36)
5
"L"
4
ON
(Pin24)
OE
GND
ROM
KIO
KAC
(Pin54)
(Pin53)
(Operation program)
"H"
"L"
(Pin22)
CE
µPD23C2001EGW-344
6
14
7
ADDRESS
ADDRESS BUS
DATA BUS
15
1. Supply 5V to VDD1 and VDD2.
2. Output "L" from SWO terminal.
3. Output "L" from IC4 and Q5 terminal.
4. Main switch ON.
5. Input "L" to SW terminal.
6. Input "L" from KAC terminal.
7. Push power on button switch.
8. CPU oscillation is generated.
9. Output "H" from V2ON terminal.
10. Output "L" from VOB terminal.
—9—
DATA
11. Output all LCD drive voltages.
12. Gate array sends ROM output enable
signal to OE terminal.
13. Gate array sends ROM Chip enable
signal to CE terminal.
14. CPU sends address to ROM.
15. CPU receives data from ROM.
Power supply circuit
1)
Power supply circuit for CPU, GATE ARRAY and RAMs.
When the main batteries are set, the voltage (9V) is applied to the terminal VDD1 of CPU (LSI1), GATE
ARRAY (LSI2) and RAM (LSI4).
When IC2 receives the voltage, it provides 4V to the GND lines from the terminal OUT (Pin No.1).
2)
Main switch
The CPU (LSI1) detects the informations of the Main switch by the terminal SW (Pin No.36) from the
SWO signal of the GATE ARRAY (LSI2).
3)
How to turn the display ON.
When pressing "ON" key under the ON side of the Main switch , the CPU (LSI1) generates the signal
to turn the display ON on the terminal V2ON (Pin No.45).
This signal goes to the terminal VIN (Pin No.24) of the GATE ARRAY (LSI2), then the GATE ARRAY
(LSI2) generates "L" level on the terminal VOB (Pin No.28). When the transistor 2SA1179 (Q2) receives "L" level, the transistor 2SC2812 (Q1) will be also turned ON. Then LCD drive voltage V1~V4
will be applied.
4)
How to detect the voltage for the main batteries.
When the voltage of the VDD lines becomes +6.6V±0.18V, the terminal OUT (Pin No.1) of the detector
RH5V60BA (IC4) becomes "L" level, then this signal goes to the terminal INTO (Pin No.70) of the CPU
(LSI1) and the terminal PDN (Pin No.35) of the GATE ARRAY (LSI2).
The CPU detects the low battery condition, then the display turns OFF.
— 10 —
5)
Main switch and power on switch
from IC4
VDD
(Pin35)
MAIN SWITCH
OFF
(Pin36)
SW
PDN
"L"
ON
(Pin62)
CPU
"L"
GATE ARRAY
SWO
SSC2571F0A
OSCI
HD62076C03
KON
2 MHz
(Pin26)
OSCO
KAC
(Pin54)
KIO
(Pin53)
4S66F
"H"
"L"
POWER ON SWITCH
When the main switch is set to on position, SW terminal of CPU receives "L", then KAC terminal will be
"L" to enable the system power on. The KI0 terminal is "H" when VDD is applied to CPU. Therefore,
when pressing the power on switch, CPU will generate a clock pulse (2 MHz) at OSCO terminal for
start up the system.
When the PDN terminal will be receiving "L" level, GATE ARRAY will send "L" signal from KON terminal for cutting the line of power on switch.
6)
Power supply for LCD
VDD
(Pin1)
(Pin2)
V1~V4
C20
R3
(Pin3)
(Pin3)
VR1
R2
(Pin28) "L"
VOB
CPU
HD62076C03
V2ON
"H"
(Pin45)
(Pin24)
(Pin31)
GND
VIN
GATE ARRAY
SSC2571F0A
When the system is start up, CPU will send "H" signal to VIN terminal of gate array from V2ON terminal. Then, gate array will send "L" signal from VOB terminal to turn ON the transistors Q2 and Q1 for
LCD drive voltages.
— 11 —
CPU pin description (HD62076C03)
Pin No.
Name
In/Out
Status
of OFF
Status
of ON
Description
1~14,16,17
15,39, 100
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
40,41
42
43, 91
44
45
46~53
54
55~65,67
66
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
92~99
18~23
A0~A15
VSS
WE
OE
FE
CS1
CS2
CS3
E0
E1
E2
E3
BCON
MDP2
SW
ONMK
TEST
OSC O/I
VDSC
VDD1
VDD2
V2ON
KI7~KI0
KAC
KC0~KC11
GND
INT2
INT1
INT0
BRK
P0
P1
P2
P3
P4
P5
P6
P7
H1
WENL
H2
L1
L2
DT
PRO
FR
LP
GC
DE
IO7~IO0
RA14~19
Out
In
Out
Out
Out
Out
Out
Out
Out
Out
Out
Out
Out
Out
In
In
In
In
In
In
In
Out
In
Out
Out
In
In
In
In
In
Out
In
In
In
Out
Out
In
In
Out
In
Out
Out
Out
Out
Out
Out
Out
Out
Out
In/Out
Out
L
GND
H
H
H
H
H
H
L
L
L
L
H
H
L
H
L
L
L
H
H
L
H
L
H
L
H
L
H
H
H
L
H
L
H
H
H
H
H
L
H
L
L
H
L
L
H
H
H
L
L
Pulse
GND
Pulse
Pulse
Pulse
H
H
Pulse
Pulse
H
H
H
H
L
L
H
L
Pulse
H
H
H
H
H
Pulse
Pulse
L
H
H
H
H
H
H
H
H
Pulse
Pulse
H
H
H
L
H
H
L
Pulse
H
Pulse
Pulse
Pulse
Pulse
Pulse
Pulse
Address Bus line
GND terminal
Write signal
Read signal
Chip select signal for Gate array
Chip select signal
Chip select signal
Chip select signal
Chip enable signal (Not used)
Chip enable signal (Not used)
Chip enable signal (Not used)
Chip enable signal (Not used)
BCN signal (Not used)
MDP signal (Not used)
Switch signal (When switches are at ON position)
Battery detection
TEST terminal (connect to GND)
Clock input
Power input for Clock
VDD input terminal
VDD input terminal
Power on output signal
Key input signal
Power on switch signal output
Key common signal output
GND terminal
Interrupt signal from Gate array
Interrupt signal for transmission
Interrupt signal for Power down
VDD input terminal
Transmission data output
Reception data input
Card lock switch input (Not used)
IC card detection signal input (Not used)
Not used
Not used
Memory back-up battery detection input (Not used)
Battery detection input (Not used)
Not used
GND terminal
Not used
Not used
Not used
DT signal output
LCD driver mode selection signal
LCD driver synchronous signal
LCD driver latch pulse signal
GC signal output
LCD driver data latch clock signal
Data bus line
Address line (Not used)
— 12 —
Gate array pin descriptions (SSC2571F0A)
Pin No.
Name
In/Out
Description
1
2
3
4
5~10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
VSS1
OSO
OSI
VL1
A0~3,A14,15
FE
CS1
CS2
CS3
OEI
VSS(GND)
VH1(VCC)
TXI
WEI
GC
IO0
DT
IO1
VIN
IO2
KON
IO3
VOB
IO4
INT
VH2(VCC)
VL2(VLL)
VSS(GND)
BBC
PDN
IO5
RLD
RA15
IO6
RA16
IO7
RA17
RA18
MS3
RA19
RA20
R15
VSS(GND)
VH3(VCC)
VDD1(VLL)
R16
R17
MSO
MS4
MS1
MS5
In
Out
In
In
In
In
In
In
In
In
In
In
In
In
In
In/Out
In
In/Out
In
In/Out
Out
In/Out
Out
In/Out
Out
In
In
In
Out
In
In/Out
Out
Out
In/Out
Out
In/Out
Out
Out
Out
Out
Out
Out
In
In
In
Out
Out
Out
Out
Out
Out
GND terminal
Clock out
Clock in
6V input
Address input
Chip select signal from CPU
Chip select signal from CPU
Chip select signal from CPU
Chip select signal from CPU
Output enable signal from CPU
GND terminal
9V input
Transmission data input from CPU
Write enable signal from CPU
GC signal from CPU
Data bus line
DT signal input
Data bus line
Power ON signal from CPU (V2ON)
Data bus line
Switch control signal
Data bus line
Inverted signal for VIN
Data bus line
Interrupt signal
9V input
6V input
GND terminal
Not used
Power down detection input
Data bus line
Not used
Address bus output
Data bus line
Inverted signal for VIN
Data bus line
Address bus output
Address bus output
Not used
Not used
Not used
Address bus
GND terminal
9V input
6V input
Address bus
Address bus
Chip enable signal for ROM
Chip select signal for RAM (Not used)
Not used
Not used
— 13 —
Pin No.
Name
In/Out
Description
57
MS2
Out
Not used
58
OEO
Out
Output enable for ROM
59
BZ1
Out
Buzzer signal
60
OTP
In
Connected to GND
61
BZ2
Out
Buzzer signal
62
SWO
Out
Main switch control signal
63
VH4(VCC)
In
9V input
64
TXO
Out
Transmission data output terminal
Operation program ROM pin descriptions
Pin No.
Name
In/Out
Status
of OFF
Status
of ON
Description
2~12,23,
25~30
13~15, 17~21
16
22
24
A0~A17
In
L
Pulse
Address bus line (A0~A14, RA15~RA17)
O0~O7
GND
CE
OE
Out
In
In
In
L
L
H
L
Pulse
L
Pulse
Pulse
Data bus line (IO0~IO7)
GND terminal
Chip enable signal from Gate array
Output enable signal from Gate array
31
1, 32
PGM
VPP, VCC
In
In
L
L
Pulse
H
Address line (RA18)
VDD terminal
RAM pin descriptions
Pin No.
Name
In/Out
Status
of OFF
Status
of ON
Description
3~12, 23
A0~A15
In
L
Pulse
Address bus line (A0~A15)
25~28, 31
13~15, 17~21
16
22
24
29
32
IO0~IO7
GND
S1
OE
W
VCC
Out
In
In
In
In
In
L
L
H
L
H
L
Pulse
L
Pulse
Pulse
Pulse
H
Data bus line (IO0~IO7)
GND terminal
Chip enable signal from Gate array
Output enable signal from Gate array
Write enable signal from CPU
VDD terminal
— 14 —
DIAGNOSTIC OPERATION
Main switch
Check pad
SELF TEST PROG.
PRESS SET
1. Diagnostic mode
The diagnostic mode appears when main switch is turned on
while there is a short in the checkpad. After this operation,
the machine will beep and display "SELF-TEST".
QUIT BY OFF
CASIO 1993. 11. 09
MENU
1 :
2 :
3 :
4 :
5 :
TOP SHEET
DISP CHECK
RAM TEST
MEMORY TEST
KEY / BUZZER
INTERFACE
CASIO 1993. 11. 09
The menu appears after pressing SET key. Tests are conducted by selecting the mode from the list on screen. The
each test can be selected by numeral keys.
DISPLAY TEST
RAM TEST
MEMORY TEST
KEY/BUZZER
INTERFACE
: LCD display check
: RAM chip check
: ROM/Clock check
: Keys and Buzzer check
: Transmission check
To return to the menu display, press DISP CHNG button .
MENU
1 :
2 :
3 :
4 :
5 :
DISPLAY
LCD ALIGNING
ALL DOTS ON
ALTERNATIVE
REVERSE
LCD FRAMING
2. Display check
LCD ALIGNING: Lights on dot at corners
ALL DOTS ON : Lights on in all dots (black screen)
ALTERNATIVE : Checker display
REVERSE
: Reverse checker display
LCD FRAMING : Lights on dot along the screen edge (frame)
CASIO 1993. 11. 09
— 15 —
3. RAM check
DISP CHNG key
MENU
1 :
2 :
3 :
4 :
5 :
RAM
DATE WRITE
DATA READ
PAT. CHANGE
#1
DATA WRITE
DATA READ
PAT. CHANGE
:Return to menu
: Write the set pattern to the RAM area
: Compare the pattern displayed after # with
the write data of RAM and displays the
results.
: Change the test data pattern.
CASIO 1993. 11. 09
#1---Test data pattern(00,01,02...)
#2---Test data pattern(FF,FE,FD....)
1) RAM write
The unit will beep after a second.
The menu will be appeared.
RAM WRITING
#1
NOW EXECUTING!
CASIO 1993. 11. 09
It means RAM write is succeeded.
2) RAM read
Normal end display is;
RAM COMPARE
COMPLETE!
CASIO 1993. 11. 09
Error end display is;
#1
RAM COMPARE
DATA ERROR!
ADDRESS
CORR
XXXX
XX
#1
RAM
XX
CASIO 1993. 11. 09
To escape from this message, press DISP CHNG
key.
— 16 —
4. ROM/Clock check
MENU
1 :
2 :
3 :
4 :
5 :
CHECK-SUM
: Call up check sum and XOR
values for connected ROM.
SPECIFIC ADDR : Call up check sum for certain
address.
TIME DISPLAY : Bring up clock display. The
present time, date and daily
alarm can be set.
MEMORY
CHECK–SUM
SPECIFIC ADDR
TIME DISPLAY
CASIO 1993. 11. 09
1) Check sum
3)
Time display
CHECKSUM CALC
TP
C0 O
SZ
256
TIME DISPLAY
SUM
XXXX
XOR
XX
1990-03-00
10:10 00
XXXXXXXXXXXXXXX
CASIO 1993. 11. 09
CASIO 1993. 11. 09
2) Specific address
SPECIFIC ADDR
TP
D0 O
SZ
256
SUM
XXXX
XOR
XX
Input can be made in the line which
shows "x" using the numeric keys.
Entry of 12 or more digits sets the time
and date. Entry of 4 or 6 digits sets the
daily alarm. The ON key clears current entries.
CASIO 1993. 11. 09
5. Key/Buzzer check
MENU
1 :
2 :
3 :
4 :
5 :
KEY / BZR
RANDOM
COMPULSORY
BEEP
ALARM NOTE 1
ALARM NOTE 2
CASIO 1993. 11. 09
RANDOM :
The 'key code' will be displayed.
The 'key code' is numbered incrementally from
left to right with the DATE key as "00", and
HOME/WORLD key as "34" etc. Accordingly,
the left cursor key is "40". To release this test, press
SEARCH key.
COMPULSORY :
Limits the mode mentioned above so that the
keys must be pressed according to the key code.
If an error is made, a buzzer sounds for about 1
second. (A correct entry results in a beep tone.)
BEEP
ALARM NOTE 1
ALARM NOTE 2
— 17 —
: Key input sound every 1 second
: Sound alarm 1
: Sound alarm 2
Pressing of the SEARCH key in either mode will return to the screen of the menu mode.
Sound can be stopped by pressing any key.
While an alarm is sounding the screen display is as shown left. If an irregularity is found in voltage
of battery while the alarm is sounding, the alarm will stop. After 256 seconds, the alarm will stop
automatically.
6. Interface check
The three charactors that appear on the right side at display
represent the parameter. In the case of the example display,
it indicates 7 BIT, NON PARITY, 9600 BPS. The operation
continues until stopped by pressing the ESC key and then
pressing the ON key for all modes.
MENU
INTERFACE
1: DATA RECEIVE
2: DATA TRANSMIT
3: ASCII CODE
4: LOOP BACK
5:
7N9
CASIO 1993.11.09
Parameter
EXECUTING !
6 key
7 key
8 key
DISP CHNG key : Return to menu mode
1 key
: Transmission mode. The data of transmission is "H" and it is sent out by the data
of H34 and H38 by the Xon/Xoff control.
2 key
: Reception mode. Make sure to set the
parameter to match that of the transitting
side. The data received appears on the
display.
3 key
: Output the following ASCII code by Xon/
Xoff control.
!"#*+,-/0123456789:
ABCDEFGHIJKLMNOPQRSTUVWXYZ
abcdefghijklmnopqrstuvwxyz
A line end code is added with each line.
4 key
: Loop back test. Short the Tx and Rx
terminals for this test. Transmit and check
from H20 to H7E. When complete, the
message 'CHECK COMPLETE' is displayed.
: Switch the data length 7 bit(7) or 8 bit(8)
: Switch the parity bit : NON(N)—EVEN(E) —NON(N) —ODD(O)
: Switch the transmission speed : 9600(9)—4800(4)—2400(2)—1200(1)
NOTE : As diagnostic program area does not have all ASCII code, to display a reception data, some
charactor will be changed to other charactor. For example, a capital letter will be changed
to small letter.
— 18 —
LOOP BACK
LOOP BACK
NOW EXECUTING!
COMPLETE!
CASIO 1993. 11. 09
CASIO 1993. 11. 09
Break display (Broken transmission)
Error display
TRANS BREAK!
TRANS ERROR!
CASIO 1993. 11. 09
CASIO 1993. 11. 09
7. Others
1) When power is off after presetting an alarm time, the unit automatically powered on at the alarm
time. However, the display is not reserved in this case.
2) When executing memory sum check, execute the RAM write check before.
3) To release diagnostic mode, press RESET button.
4) The display contrast can be changed by the contrast dial.
— 19 —
TROUBLESHOOTING
Before the following solutions will be done, save data if possible.
SYMPTOM
No power
No display at all or wrong
display
No key input at all
CAUSE
SOLUTION
Battery shortage
Replace batteries
Poor soldering of the power supply
circuit
Resolder
Defective LSI-1 or LSI-2
Replace it
Defective TAB LSI
Replace it
Defective heat seal
Replace it
Defective LCD
Replace it
Poor soldering LSI-1 or LSI-2
Resolder
Defective LSI-1 or LSI-2
Replace it
— 20 —
SCHEMATIC DIAGRAM
Main PCB
— 21 —
Display PCB
— 22 —
Key Matrix
— 23 —
Key Matrix (Display side)
— 24 —
PARTS LIST
N
N
N
N
N
N
Item
LSI1
LSI2
LSI3
LSI5
IC2
IC3
IC4
IC6
Q1
Q2
Q4
D1
D2
D3
X1
X2
C1
C4
C5
C6/7
C8/9
C10/11
CB1~5/7
C20
R1/2
R3/22
R6/7
R10
R12
R13/31
R14~18
R19
R23
R26/28
J1
VR1
1
2
3
LSI6/7
4
N
5
6
Code No.
Parts Name
Specification
I : U.S.A.
II : B.O.S.S.
III : OTHERS
FOB Japan
Quantity M N.R.Yen
R
I II III
Unit Price
1.MAIN BOARD
2011 3843 LSI
2011 7350 LSI
2011 9247 IC
2011 8778 IC
2105 2982 IC
2105 2989 IC
2105 2247 CMOS-IC
2105 1141 L-MOS IC
2221 0378 Chip transistor
2200 4417 Transistor
2259 0959 Chip digital transistor
2390 0847 Chip diode
2305 1028 Chip diode
2390 0364 Shottky diode
2590 0777 Ceramic oscillator
7110 0642 Cryatal oscillator
2803 6813 Capapcitor
2845 2289 Chip capacitor
2845 1673 Chip capacitor
2845 2499 Chip capacitor
6411 8550 Chip capacitor
2845 1540 Chip capacitor
HD62076C03
SSC2571F0A
TC551001BFL-10L
µPD23C2001EGW-J62
S-80250AG-GB-T1
S-81220PG-PS-T1
RH5VA60BA-T1
TC4S66F-TE85R
2SC2812-L5, L6-TB
2SA1179M5, M6-TB
DTC114YKT-146
MA718-(TX)
MA157-(TX)
MA713-(TX)
CSAC2.01MGCM001-TC
DT-26S
CB0011341R3
MCH215C471KK
MCH215A221JK
MCH215A300JK
CP016F602T3
MCH212F104ZK
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
2
8
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
2
8
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
2
8
1
1
1
1
1
10
5
5
20
20
20
5
10
10
1
10
20
20
20
20
20
20
720
460
1,330
490
100
45
65
39
12
15
12
5
34
33
98
57
22
3
4
3
5
4
A
A
A
A
B
B
B
B
B
B
B
B
B
B
B
B
C
C
C
C
C
C
2845 3486
2795 1309
2795 0532
2792 0217
2792 0462
2792 1191
2792 0470
2795 3248
2792 0209
2795 3339
2795 0056
3501 6538
6411 8480
6411 8490
6409 6310
MCH312F474ZP
MCR10EZHJ684
MCR10EZHJ105
MCR10EZHJ101
MCR10EZHJ473
MCR10EZHJ182
MCR10EZHJ102
MCR10EZHG362
MCR10EZHJ104
MCR10EZHG152
MCR10EZHJ000
HSJ1169-012010
CF10013A008
EF01DB21109
EF02DB10100
1
2
2
2
1
1
1
5
1
1
2
1
1
3
3
1
2
2
2
1
1
1
5
1
1
2
1
1
3
3
1
2
2
2
1
1
1
5
1
1
2
1
1
3
3
20
10
20
20
20
10
20
20
20
20
20
5
5
20
20
21
9
3
3
3
9
3
2
3
3
3
56
90
12
16
C
C
C
C
C
C
C
C
C
C
C
X
C
X
X
1
1
1
1
4,450
B
2
2
2
1
370
A
1
1
1
1
940
B
Chip capacitor
Chip resistor
Chip resistor
Chip resistor
Chip resistor
Chip resistor
Chip resistor
Chip resistor
Chip resistor
Chip resistor
Chip resistor
Jack
Volume
Battery spring (+)
Battery contact plate (-)
6412 8260 CPU board ass'y
DB21AX3100L
(This unit contains the above parts as it's element)
2.DISPLAY BOARD
2011 1974 LSI
MSM6385AV-Z-358B
6411 8440 D/D board ass'y
DB21XX3F00M*1
(This unit contains the above parts as it's element)
3.COMPONENT
3335 5257 LCD
CD791-TS
6411 6340 Heat seal
FX20P320003
Notes: N – New parts
M – Minimum order/supply quantity
R – Rank
Q – Quantity used per unit
— 25 —
1
1
R–A:
B:
C:
X:
1 1 1
760
1 1 1
200
Essential
Stock recommended
Others
No stock recommended
A
A
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
Item
Code No.
7
8
9
10
11
12
13
14
15
16
16
17
18
19
20
21
22
23
24
25
26
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
40
41
42
43
44
45
46
6512 1280
6512 1230
6512 1240
6411 8470
6411 8460
6411 8450
6408 5920
6412 8240
6412 8250
6412 8230
6413 1450
6510 4440
6512 1080
3122 2380
6510 4500
6412 8200
6412 8210
6412 8220
6512 1210
6512 1220
6412 8110
6413 1440
6409 6120
6511 8400
6411 8250
6411 8260
6411 8270
6511 7160
6510 4310
6510 4350
6512 1000
6510 5260
6406 8750
6412 8130
6412 8140
6412 8150
6412 8160
6410 9680
6412 8170
6512 0730
6411 8370
6412 8180
6412 8190
Haet seal
Heat seal
Protection tape
Protection tape
Cushion
Keyboard PCB
Switch knob ass'y
Battery cover
Battery cover label
Lower case (KB)
Lower case (KB)
Insulation seal
Nut
Buzzer
Buzzer tape
Upper case (DIS)
Upper case (KB)
Hinge A
Pin
Pin (L)
Lower case (DIS)
Lower case (DIS)
Battery holder
Key contact rubber C
Knob
Key contact rubber (61)
Key contact rubber (25)
RB insert
Decoration screw
Decoration screw
Screw
Screw
Screw
Hinge B
Battery insulation
Display plate
Display plate
Mask tape
Hinge tape
Hinge stopper
Screw
Alphabet key set
Numeric key set
Notes:
–
–
–
–
N
M
R
Q
Parts Name
Specification
FX200P80074
FX200P60014
HGFC0007409
HGJ00003706
FH100027205
DADB21XX301
DB2AXX4A00M
FADDB211014
HGFC0010507
FABDB211018
FABDB211026
HGFC0001206
MD100000602
EFB-S55C41A8
HGFC0000501
FAADB212018
FAADB211020
FC0DB061017
FC002870000
FC002870018
FABDB212014
FABDB212022
ECDB1011108
LADB0220105
FB3DB211007
LADB2110005
LADB2120001
LC120000102
MAA80006311
MAA80006302
MABA0004207
MAB10032301
MAB20070302
FC0DB062013
EL4F0002111
EL5F0008201
EL5F0008308
HGC00001609
HGFC0010604
EF15DB06102
MABA0006307
KGDB2110106
KCDB2120105
New parts
Minimum order/supply quantity
Rank
Quantity used per unit
— 26 —
Quantity
I II III
1 1 1
1 1 1
1 1 1
1 1 1
2 2 2
1 1 1
1 1 1
1 1 1
1 1 1
0 0 1
1 1 0
4 4 4
4 4 4
1 1 1
1 1 1
1 1 1
1 1 1
1 1 1
2 2 2
2 2 2
1 0 1
0 1 0
3 3 3
1 1 1
1 1 1
1 1 1
1 1 1
1 1 1
3 3 3
1 1 1
5 5 5
3 3 3
10 10 10
1 1 1
1 1 1
1 0 1
0 1 0
1 1 1
1 1 1
2 2 2
5 5 5
1 1 1
1 1 1
R–A:
B:
C:
X:
I : U.S.A.
II : B.O.S.S.
III : OTHERS
FOB Japan
M N.R.Yen
Unit Price
10
49
1
120
20
22
20
22
20
18
5
65
10
30
20
27
20
15
5
95
5
95
20
6
20
13
10
36
20
17
1
68
1
250
20
21
20
9
20
16
20
26
20
26
20
26
20
10
20
9
1
200
5
83
20
17
20
3
20
2
20
3
20
3
20
10
20
18
20
24
1
170
1
170
20
7
20
22
20
27
20
3
1
120
1
120
Essential
Stock recommended
Others
No stock recommended
R
B
A
B
B
C
X
C
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
C
X
C
C
C
B
B
C
C
C
X
X
B
B
X
C
X
X
X
X
ASSEMBLY VIEW
37
41
37
26
16
33
20
34
35
19
37
28
27
4
13
6
14
17
18
10
44
44
8
39
15
J1
32
9
12
VR1
7
3
2
42
11
31
35
30
5
1
23
38
46
45
25
37
24
21
43
37
36
43
22
40
29
— 27 —
MA1100741A