Brother HL-1260 - Manual (Page 45)

III - 13
Heater Control
Thermal Fuse
Lamp
H1
TH1
AC IN
21
L N L N
Power Switch (SW1)
Noise Filter
Rectfier
Inlet
Transformer
Rectfier
Chopper
Over Voltage Detector
Feedback Control
1 4 2 3 6 7 5 8
HEAT/ +24V +5V +5V ±0
V
±0
V
+24VRET FANLOCK/
P3
To Heater Circuit
F101 F102
P1
Figure 3.9 Low-Voltage Power Supply PCB Block Diagram