[Help] F2-220 don't boot
Posted: 30 Nov 2025, 22:35
Hello
My F2-220 now seems to have the “clock bug” too...
No beep, no VGA, no LAN, just the green power light and 2 red HDD LEDs.
I take out the battery of the device, connect the positive and negative terminals of the battery holder with iron wire for 10 seconds, then assemble the device.
So, according to tviewtopic.php?t=3656 I placed a 47-ohm resistor between pin 8 (clk) and pin 6 (GND).
Oscilloscope reading of the CLK signal:
Image 1 without resistor (Vpp=3.7V)
Image 2 with 47 ohms (Vpp=1.7V)
But no change. What else can I try?
My F2-220 now seems to have the “clock bug” too...
No beep, no VGA, no LAN, just the green power light and 2 red HDD LEDs.
I take out the battery of the device, connect the positive and negative terminals of the battery holder with iron wire for 10 seconds, then assemble the device.
So, according to tviewtopic.php?t=3656 I placed a 47-ohm resistor between pin 8 (clk) and pin 6 (GND).
Oscilloscope reading of the CLK signal:
Image 1 without resistor (Vpp=3.7V)
Image 2 with 47 ohms (Vpp=1.7V)
But no change. What else can I try?