Brother HL-2060 - Page 97

VI-15
M-12 "55 HIGH VOL MALF" is displayed (Faulty output from the H.V.P.S. ASSY)
Possible cause Step Check Result Remedy
Main PCB 1 When a test print is carried out, is the voltage
of the each pin in the main PCB connector P6
turned on and off as the below list?
No Replace the main PCB
assy.
Pin No. Signal name Voltage
(reference
value)
Remarks
1
10
2 3 4 5
6
7
8 9
/HV1AC 0V
5.8V
10
2 3 4 5
7
8 9
/HV1DC 0V
10.0V
10
3 4 5
8 9
/DBAC 0V
6.3V
10
4 5
9
/DBDC 0V
9.8V
5
DNSTY 1.0 ~ 4.0V Default: 1.9V
10
11 12 13 14
6
15
7
16
8
17
9
18 19 20
/HVT1 0V
23.0V
10
12 13 14 15
7
8
17
9
18 19 20
/HVT2 0V
17.6V
10
13 14 15
8 9
18 19 20
/HVT3 0V
10.0V
10
14 15
9
HVT4 0.2 ~ 5.0V
10
15
HVTFB 0.2 ~ 5.0V
11 12 13 14 15
16
17
18 19 20
TONER1 0.0 ~ 3.5V
12 13 14 15
0V 0V
13 14 15
18 19 20
TONER2 2.0 ~ 4.5V
14 15
24VRET 0V
15
24V 24V
16
17
18 19 20
HVHALFN 0.0 ~ 10.0V
HV harness 2 Is the voltage of the each pin of the high-
voltage power supply PCB connector P2
No Replace the HV harness.
High-voltage
power supply
PCB
turned on and off? Yes Replace the high-voltage
power supply PCB assy.