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Example 1: If “42” is displayed
Higher bit: 4=0100
→
b6
Lower bit: 2=0010
→
b1
This case shows that retry was made due to combined causes of
“CLV unlock” and “ADIP error ”.
Example 2: If “A2” is displayed
Higher bit: A=1010
→
b7 + b5
Lower bit: 2=0010
→
b1
This case shows that retry was made due to combined causes of
“cannot access”, “IV-R”, and “ADIP error ”.
How to Use Table 1-1.:
Use table 1-1. by converting hexadecimal number of each digit
into decimal number (see table 1-2). If an error occurred by two
or more causes, respective numbers are added.
*1 Some may not be used depending on the microcomputer version.
Table 1-2. Hexadecimal number - Decimal number
Conversion
Hexadecimal
Decimal
Hexadecimal
Decimal
0
0000
8
1000
1
0001
9
1001
2
0010
A
1010
3
0011
B
1011
4
0100
C
1100
5
0101
D
1101
6
0110
E
1110
7
0111
F
1111
8
4
2
1
8
4
2
1
Description
Bit
b7
b6
b5
b4
b3
b2
b1
b0
0
0
0
0
0
0
0
0
00
spindle slow
When spindle speed slow was detected
0
0
0
0
0
0
0
1
01
shock *1
When shock over 3.5 was detected
0
0
0
0
0
0
1
0
02
ader 5
When ADER was counted more than 5 times
successively
0
0
0
0
0
1
0
0
04
address error
ADIP addresses are not serial
0
0
0
0
1
0
0
0
08
(Not used)
Not used
0
0
0
1
0
0
0
0
10
focus
Focusing failed
0
0
1
0
0
0
0
0
20
IV-R
ABCD signal level exceeded the specified range
0
1
0
0
0
0
0
0
40
CLV unlock
CLV is unlocked (CLV is out of range)
1
0
0
0
0
0
0
0
80
cannot access
Access failed
Table 1-1. Description of Retry Cause Display
Hexa-
decimal
Lower Bit
Upper Bit
Name of
Retry Cause
Hexa-
decimal
Decimal
Summary of Contents for MDS-EX77
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Page 48: ... 51 52 6 6 PRINTED WIRING BOARDS MAIN DISPLAY Section See page 32 for Circuit Boards Location ...