Power Supply Circuits - Canon MVX200 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
31
CAM ON
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
PWM 60
REG.
Q3207
CH-5
15
61
PWM REG.
Q3208
CH-6
11
62 REG.
PWM
CH-7
Q3201
5
64
PWM REG.
CH-8
Q3202
L3211
MVX250i E, MVX200i E, MVX200 E
UNREG
UNREG
UNREG
UNREG
IC3203
REG.
UNREG
UNREG
UNREG
Fig. 3
6
TECHNICAL DESCRIPTION
LPF MACS 1.4V
LPF AVDD 1.4V
LPF DVDD 1.4V
SDRAM 2.7V
AVDD 2.7V
DIF 2.7V
DVDD 2.7V
AA 2.7V
LPF
M SDRAM 2.7V
LCD 2.7V
LPF
CAM 3V
LPF
DVDD 3V
HA 3V
AA 4.7V
HA 4.7V
P 5V
LPF LCD 5V
DRUM VM
CAP VM
CCD 15V
CCD -7V
LCD 8.5V