Trouble Shooting
- 61 -
6.5 Filter check failed
Filter positioning failed
1. Solving the wiring of CN1 on
PCB SST8.414.103(104)
2. Replace PCB
SST8.414.103(104)
3. Replace PCB SST8.412.113
Filter motor works OK?
N
1. Solving the wiring of J9 on
PCB SST8.414.103(104)
2. Replace photo-coupler.
Y
Y
1. Solving the wiring of filter
motor
2. Solving the wiring of CN2
on PCB SST8.414.103(104)
3. Replace PCB
SST8.414.103(104)
4.Replace filter motor
5.Replace PCB
SST8.412.113
DC +1.2V on pin 3 of J9 on PCB
SST8.414.103(104) OK?
1. Solving the wiring CN1 on
PCB SST8.414.103(104) to
PCB SST8.412.113
2. Replace PCB
SST8.414.103(104)
N
Y
DC +12V on pin 5 of J5 on
PCB SST8.414.103(104)
OK?
Y
Refer 6.18
N
N
DC +12V on pin 1 of CZ1 on
PCB SST8.412.113 OK?
N
1. Solving the wiring of CN2
on PCB SST8.414.103(104)
2. Replace PCB
SST8.414.103(104)
3.Replace PCB
SST8.412.113
Y
The voltage level on pin 2 of J9
on PCB SST8.414.103 changes
within 0
—
3.2V during the filter
positioning?
Summary of Contents for SQ Series
Page 5: ......
Page 8: ...Introduction 3 Figure 1 5 Model UV 4802...
Page 12: ...Layout 7 Figure 3 2 Layout of UV 2800 Inside Bottom View...
Page 13: ...Layout 8 39 40 41 42 43 Figure 3 3 Layout of UV 2800 Top View...
Page 14: ...Layout 9 230V 44 45 46 47 48 49 50 51 Figure 3 4 Layout of UV 2800 Back View...
Page 18: ...Layout 13 Figure 3 7 Layout of UV 2802 S UV 2802PC S Inside Bottom View...
Page 19: ...Layout 14 43 44 45 46 47 Figure 3 8 Layout of UV 2802 S Top View...
Page 20: ...Layout 15 230V Figure 3 9 Layout of UV 2802 S UV 2802PC S Back View...
Page 23: ...Layout 18 Figure 3 11 Layout of UV 3802 Inside Bottom View...
Page 24: ...Layout 19 44 45 46 47 48 Figure 3 12 Layout of UV 3802 Top View...
Page 25: ...Layout 20 230V Figure 3 13 Layout of UV 3802 Back View...
Page 28: ...Layout 23 Figure 3 14 Layout of UV 4802 Inside Top View...
Page 29: ...Layout 24 Figure 3 15 Layout of UV 4802 Inside Bottom View...
Page 30: ...Layout 25 43 44 45 46 47 Figure 3 16 Layout of UV 4802 Top View...
Page 31: ...Layout 26 230V Figure 3 17 Layout of UV 4802 Back View...
Page 35: ...Optical 30 Figure 4 3 Optical System schematic diagram of UV 4802...
Page 49: ...Electronic System 44 Figure 5 13 Layout of Main CPU PCB...
Page 63: ...Trouble Shooting 58 6 Trouble Shooting 6 1 Tungsten lamp off...
Page 69: ...Trouble Shooting 64 6 8 Slit check failed Only for UV 2802S UV 2802PCS...
Page 72: ...Trouble Shooting 67 6 13 Get dark current for a long time...
Page 74: ...Trouble Shooting 69 6 15 Backlight OK but display nothing on LCD Display...
Page 77: ...Trouble Shooting 72 6 18 No DC 12V on PCB SST8 412 113...