Power Supply Circuits - Canon MV750i E Service Manual

2-3 Power Supply Circuits

Figure 3 shows the power supply circuits.
The ON/OFF condition of each power supply voltage is controlled by the VTR ON / CAM ON signals output from the MODE MI-COM.
MAIN P.C.B.
CONVERTER
VTR ON 28
30
CAM ON 31
46
50
PWM REG.
Q3204
CH-1
43
53
PWM REG.
Q3203
CH-2
IC3201
DC/DC
40
CONTROL
56 REG.
PWM
Q3205
CH-3
37
57
PWM REG.
Q3206
CH-4
21
60
PWM REG.
Q3207
CH-5
15
61
PWM REG.
Q3208
CH-6
5
64
PWM REG.
CH-7
11
62
PWM REG.
CH-8
Fig. 3
MV750i E, MV730i E, MV700i E, MV700 E, MV690 E
UNREG
UNREG
UNREG
UNREG
IC3203
REG.
UNREG
UNREG
UNREG
UNREG
5
TECHNICAL DESCRIPTION
LPF MACS 1.4V
LPF AVDD 1.4V
LPF DVDD 1.4V
DVDD 2.5V
LPF SDRAM 2.7V
AVDD 2.7V
DIF 2.7V
DVDD 2.7V
LPF
AA 2.7V
LPF
MICOM 3V
LCD 3V
LPF
CAM 3V
LPF
DVDD 3V
LPF
HA 3V
LPF AA 4.7V
LPF VIF 4.7V
LPF HA 4.7V
P 5V
LPF LCD 5V
DRUM VM
CAP VM
CCD 15V
LPF
LPF CCD -7V
LPF LCD 15V
LPF LCD 8.5V
LPF LCD -10V