1. Description of trouble
RED LED continuous blinking
Power supply sometimes cuts.
2. Fault Location
IC804 of Main Power PCB
IC142 of Main Power PCB
Resistor (1W, 1/2W, 1/4W) solder crack of Main Power PCB
The noise does overlay to the VCC power supply of IC804 and it damages IC804.
IC142 is destroyed due to the solder crack of the chip resistor.
1. Preventive maintenance
Parts are exchanged
2. Preventive maintenance
The capacity of C836 is changed and the noise is removed.
Please execute preventive measures also because abnormality is seen in the
shape of waves at the start.
For the prevention of the solder crack, solder is added.
3. A case of LED lamp blinking
The capacitor with the lead is added to C836 of Main Power PCB.
R38, R39, R122, R123, R142, R143, R154, R155, R501, R583
Solder is added.
R584, R632, R633, R634, R162
Each terminal of IC121, IC141, IC142
Please exchange 1,2(Preventive maintenance) and IC804.
1. R147 0.15W 0.22W (Cement resistance)
P42HHA10WS
P42HHA10ES
P42HHA10AS
P42HHA10KS
P42HHS10WS
P42HHS10ES
P42HHS10AS
P42HCA11WS
P42HCA11ES
P42HCA11AS
P42HCA10WS
P42HCA10ES
7. M o dification parts
3. C ause
5. Method of measures
6. Additional measures
4. Applicable Models
Details : to next page.
FGCS will supply it
2. R165 0.12W 0.15W (Cement resistance)
3. R157 1.8kW 2.7kW (Carbon resistance)
4. D145 ECSF56 EC11FS2
5. D152 ECSF56
6. C148
EC11FS2
C148 (Same part of New one)
Please surely execute 2 preventive
