Samsung HLR5078WX - Chapter 6 Troubleshooting; Checkpoints by Error Mode

Troubleshooting
Samsung Electronics 6-1
6. Troubleshooting
6-1 Checkpoints by Error Mode
1. Power Light: Check the master switch (ON/OFF) and the fuse to see if they are operating.
2. LED Blinking: See the basic LED checklist in 6-2-1.
< Blinking Temp & Timer LED >
Are fans running?
Yes
Yes
Yes
Replace Detect Board
Check for 8Vdc at
CN104 on Detect Board
Replace fan(s)
Check CN802 pins 8 &10 on
the Power board for 12VB
No
No
No
Replace Power Board
Replace
the Analog Board
< Blinking Lamp and Temp LEDs >
Is lamp cover installed?
Short CN109
on Detect Board
Check boss
on Lamp Cover
Replace the Detect Board
Install lamp cover
Yes
Yes
No
No
No
Replace the Digital Board
No
Make sure lamp cover
switch is activating