Basic Trouble-Shooting; Trouble Shooting - Sharp RZ-E601 Service Manual

BASIC TROUBLE-SHOOTING

TROUBLE SHOOTING

Item Failure Symptom
System no boot, Power LED
1
off
System no boot, continuous
abnormal beeping sound
2
System POST with a short
3 beep sound and without boot
screen
System working after 1– 5 min
Fan run then full speed, on
4
boot
HDD is not working
5
USB does not respond
6
No output from Audio
Line-out/MIC input have no
7
action
No Display but system with
8
boot
LAN does not work
9
PUSB, No power output
10
COM port does not respond
11
Cash Drawer does not
respond
12
12V/DC Output, No Power
13
11
Trouble-shooting
1. 1. Verify that the 19V Power adapter is connected to the unit
2. Replace 19V Power Adapter
3. Replace Motherboard
1. Verify that RAM is inserted properly
2. Replace RAM
1. 3. Replace Motherboard
1. Clearing the CMOS
2. Replace Motherboard
1. 1. Clearing the CMOS
2. Swap EPROM
3. Replace RAM
2. 4. Replace Motherboard
1. Load optimized defaults in BIOS and restart
1.
2. Replace parts in below order: HDD, HDD cable, HDD power cable
1. Verify that the USB device is connected to the unit
2. Load optimized default in BIOS and restart
1. 3. Replace Motherboard
1. Use other device for cross checking
2. Load optimized default in BIOS and restart
3. Replace Motherboard
2. 1. Verify that the VGA cable is connected to the unit
3. 2. Verify that the VGA cable is connected to monitor
4. 3. Replace VGA Cable
5. 4. Replace monitor
5. Replace Motherboard
1. Check if the server connection is normal
2. Verify RJ45 LAN cable connection status
3. Check if the LAN driver is normal
4. Replace Motherboard
1. Verify PUSB cable connection status
2. Replace installed device
3. Replace Motherboard
1. Load optimized default in BIOS and restart
2. Replace Motherboard
1.Use other cash drawer for cross checking
2. Load optimized defaults in BIOS and restart
2.
3. Replace Motherboard
1. 1. Verify that the device is connected to the unit
2. Replace Cable
3. Replace device
4. Replace Motherboard
Trouble-shooting