Power Supply Circuit - Canon ELURA10 A Service Manual

2-3 Power Supply Circuit

Figure 2-3 shows the various power supply circuits.
The ON/OFF of each power supply is controlled by VTR ON output from SUB MI-COM and CAM ON output from MAIN MI-COM.
IC3201
DC/DC
CONVERTER
CONTROL
29
ON/OFF
30
ON/OFF
CAM ON
4 3
VTR ON
6
ON/OFF
IC3202
DC/DC
CONVERTER
CONTROL
39
46
PWM REG.
Q3202
CH-1
36
50
PWM REG.
Q3216
CH-2
33
PWM 56 REG.
Q3204
CH-3
19
57
PWM REG.
Q3203
CH-4
21
VTR ON
VTR
Q3209, 10 (1/2)
UNREG
10
PWM REG.
Q3213
CH-1
19
CAM ON
VTR
Q3208, 10 (2/2)
UNREG
11
PWM REG.
Q3212
CH-2
16
VTR
UNREG
13
PWM REG.
Q3211, 14
CH-3
Fig.2-3
2-5
CAHPTER 2. TECHNICAL DESCRIPTION
IC3203
UNREG (VS)
4.7V REG.
1
IN OUT
IC3219
2.8V REG.
5
IN OUT
ON
UNREG (3V)
1
Q3201, 5
UNREG (3V)
Q3227
VTR UNREG
ELURA20 MC A, ELURA10 A
DVDD 4.7V
2
HA 4.7V
MO 5V
4
DIF 2.8V
HA3.0V, DVDD 3.0V,
A3.0V, CARD 3.0V,
LCD 3.0V
CAM 3.0V
CAM 2.3V
AVDD 2.3V, DVDD 2.3V
DVDD 1.7V, DIC 1.7V
LCD 12V
CCD 15V
CCD -6.5V