Konica Minolta bizhub 43, Руководство по обслуживанию

Страница: 32 / 232

DN 3000329392 - 03 - 28 -
4. POWER SUPPLY
There are 3 power supply
• Engine power supply board
• LVPS module
• DC/DC board
The "engine power supply board" supplies 5v and 3v3 for the MFP.
The "LVPS module" supplies 24V for the MFP in active mode and for the DC/DC board in sleep mode.
The "DC/DC board" supplies 3v3 in sleep mode ; this board is necessary because the power delivered
by the "engine power supply board" is not enough in sleep mode.
Vout =12V
Iout = 100 mA
P24V
(23 ->25)
@ 2,2A
P5V
(4,9 -> 5,1)
@ 2,5A
P3V3
(3,2 -> 3,5)
@ 4A
Printer XIP
Powers
deliveries
LDO2
Vout = 1.8V , 0.9V
Iout = 2,5 A
rend = 81%
Vout = 1,25 V
Iout = 2,5A
rend = 80%
1,5A
1A
1.1A
mainboard
P24VP 24V@0,45A
P12VP 12V@70mA
P5VC 5,1V@0.7A
P3V35VP 3,35V@850mA
P1V8P 1,8V@2A
P1V25P 1,25V@2,3A 1%
Vout = 18 V
Iout = 800mA
rend = 88%
Vout = 36 V
Iout = 1,2 A
rend = 93% P36VP 36V@0.8A
P18VP 18V@500mA
DC2
DC1
DC3
DC4
0,55A
1.3A
0.58A
Vout =3.1V
Iout = 200 mA
P3V1VP 3,1V@100mA
LDO3
2.1W
1.4W
0.4W
50mW
0.6W
0.8W
P0V9P 0.9V@ 0,2A
Vout =5V
Iout = 100 mA
P5VP 5,1V@100mA
LDO1
1.9W
ADF motor
FB motor
CCFL LCD panel
CCFL scanner
CCD
buffer AFE/CCD,
motor driver, HDD
USB host, FP timing
controller, DDR2
modem
logic
LCD Controller
DDR2
Zoran core
LM3478
MIC4690
TPS51116
MAX8545
MC78xx
NCV4276
RP100x
switch
alim
Step down
24V-3,3V
P24V
P3V3_UC
(3,2->3,5) @4A
HFFv2 DC/DC board
P3V3
LVPS