Zenith D35, Service Manual

Page: 52 / 156

3-24 3-25
2. POWER(SMPS) BLOCK DIAGRAM 2
FD(+)
FD(-)
-29VA
GND
33VA
GND
13VA
GND
3.8VA
3.8VA
GND
5.3VA
5.3VA
GND
GND
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
TO SYS
FD(+)
TO SYS
FD(-)
TO SYS
-29VA
TO TU
33VT
TO TU
REG 12VT
TO SYS
5.3VA
TO TU/SYS/ Hi-Fi
5.2VA
TO AVCP
REG 5V
FROM
µ
-COM
PWR CTL 'H'
PMS01
5.3VA
8V
GND
REG 12VT
3.3V
3.3V
5V
5V
GND
2.5V
GND
GND
1
2
3
4
5
6
7
8
9
10
11
12
PMD03
33VT BLOCK
(Q163, R168,
R169, R170)
12VT BLOCK
(IC164, C162, R171)
8V BLOCK
(IC160, D163,
C163, R161)
3.3V BLOCK
(IC161, D164, C173)
2.5V BLOCK
(IC162, D165, C172)
REG 5V
(Q166, C166, C167,
R174, ZD161)
5.2V BLOCK
(Q167, C168, R175,
R176, R177)
PWR CTL BLOCK
(Q169, C170, R181,
R182, R183)
5V BLOCK
(Q168, R178, R179,
R180, C169)
DT-587M's