Error Code
Possible Cause
Check Point
Remarks
Classified Code
ST1 ST2 ST3 ST4
U30
(Door open)
20
00
00
00 Front door remains open or is not
closed properly.
Shut the door properly.
Door Switch does not work
correctly.
1. Execute
Key / Sensor
on Sec. 9.3.6. to
check the door switch (Door Sensor) ON /
OFF condition.
2. Check the connection between the Door
Switch and CN804 on POWER Board
3. Check the Door Switch mechanical
condition.
4. Replace the faulty cable.
5. Replace the Door Switch.
Monitor circuit to check the door
ON/OFF condition is broken.
1. Execute
Key / Sensor
on Sec. 9.3.6. to
check the door switch ON / OFF
condition.
2. Check the connection between CN802 on
POWER Board and CN1013 on
CONTROL Board.
3. Check +24VS signal line (CN1013 - 3
rd
pin).
4. Check the CONTROL Board.
Check point: Q1046 - C
·
+5V (when the door is open)
·
0V (when the door is close)
5. Replace the faulty cable.
6. Replace the POWER Board.
7. Replace the CONTROL Board.
F20
(Memory error: SRAM
error in G/A 1)
8A
xx
xx
00 SRAM error in G/A 1 occurs.
1. Check the soldering condition of the G/A 1
(IC1501) on CONTROL Board to repair it.
2. Replace the CONTROL Board.
F21
(Memory error:
Shading Memory 1
error for G/A 1)
8B
xx
xx
00 Shading memory1 error for G/A 1
occurs.
1. Check the soldering condition of the
Shading memory 1 (IC1505) on
CONTROL Board to repair it.
2. Replace the CONTROL Board.
F22
(Memory error:
Shading Memory 2
error for G/A 1)
8C
xx
xx
00 Shading Memory2 error for G/A 1
occurs.
1. Check the soldering condition of the
Shading memory 2 (IC1506) on
CONTROL Board to repair it.
2. Replace the CONTROL Board.
F23
(Memory error: Line
Memory error for G/A
1)
8D
xx
xx
00 Line Memory error for G/A 1
occurs.
1. Check the soldering condition of the Line
memory (IC1504) on CONTROL Board to
repair it.
2. Replace the CONTROL Board.
Only for KV-
S2045C/
SU245C
Series
F24
(Memory error: DRAM
error for G/A 1)
8E
xx
xx
00 DRAM error for G/A 1 occurs.
1. Check the soldering condition of the
DRAM (IC1510) on CONTROL Board to
repair it.
2. Replace the CONTROL Board.
F25
(Memory error: SRAM
error in G/A 2)
8F
xx
xx
00 SRAM error in G/A 2 occurs
1. Check the soldering condition of the G/A 2
(IC1502) on CONTROL Board to repair it.
2. Replace the CONTROL Board.
Only for KV-
S2045C/
SU245C
Series
F26
(Memory error:
Shading Memory 1
error for G/A 2)
90
xx
xx
00 Shading Memory1 error for G/A 2
occurs.
1. Check the soldering condition of the
Shading memory 1 (IC1508) on
CONTROL Board to repair it.
2. Replace the CONTROL Board.
Only for KV-
S2045C/
SU245C
Series
F27
(Memory error:
Shading Memory 2
error for G/A 2)
91
xx
xx
00 Shading Memory2 error for G/A 2
occurs.
1. Check the soldering condition of the
Shading memory 2 (IC1509) on
CONTROL Board to repair it.
2. Replace the CONTROL Board.
Only for KV-
S2045C/
SU245C
Series
F28
(Memory error: Line
Memory error for G/A
2)
92
xx
xx
00 Line Memory error for G/A 2
occurs.
1. Check the soldering condition of the Line
memory (IC1507) on CONTROL Board to
repair it.
2. Replace the CONTROL Board.
Only for KV-
S2045C/
SU245C
Series
F29
(Memory error: DRAM
error for G/A 2)
93
xx
xx
00 DRAM error for G/A 2 occurs.
1. Check the soldering condition of the
DRAM (IC1511) on CONTROL Board to
repair it.
2. Replace the CONTROL Board.
Only for KV-
S2045C/
SU245C
Series
73
KV-S2025C Series / KV-SU225C Series / KV-S2045C Series / KV-SU245C Series
Summary of Contents for KV-S2025C
Page 96: ...96 KV S2025C Series KV SU225C Series KV S2045C Series KV SU245C Series ...
Page 114: ...KV S2025C Series KV SU225C Series KV S2045C Series KV SU245C Series 114 ...
Page 116: ...14 1 Exterior 116 KV S2025C Series KV SU225C Series KV S2045C Series KV SU245C Series ...
Page 118: ...14 2 Chassis and Base 118 KV S2025C Series KV SU225C Series KV S2045C Series KV SU245C Series ...
Page 120: ...14 3 Hopper Unit 120 KV S2025C Series KV SU225C Series KV S2045C Series KV SU245C Series ...
Page 122: ...14 4 Power Unit 122 KV S2025C Series KV SU225C Series KV S2045C Series KV SU245C Series ...