Schematic Diagram - Dcdc Board - Sony UDA-1 Service Manual

5-20. SCHEMATIC DIAGRAM - DCDC Board -

1 2
DCDC BOARD
A
(Page 46)
CN154
3P
>13S
R2_L 1
T001 NC 2 CL150
MAIN POWER
R2_N 3
TRANSFORMER
B
EB101
C
(CHASSIS)
D
E
CN150
6P
(Page 46)
GND 1
>14S
AC CUT 2
STBY+5V 3
PRIMARY
PW-RY 4
BOARD
CN130
UNREG_STBY 5
F UNREG_13V 6
G
CN191
3P
CL185
FAN_OUT 1
CL186
M
M1
FG 2
(FAN)
CL187
GND 3
C180
H
UDA-1
• See page 38 for Waveforms. • See page 48 for IC Block Diagrams.
3 4 5
F150
T3.15A 250V
CL151
D152 D155
RB080L-30TE25 RB080L-30TE25
D153 D156
RB080L-30TE25 RB080L-30TE25
D154
1SR154-400TE-25
CL168
CL169
11.7
5 4
EN N.C.
6 N.C. GND 3
0.8
7 2
N.C. FB
11.7 5.3
8 1
Vcc Vout
IC150
+5V REGULATOR
C150 IC150
2.2 BD00GA3WEFJ-E2
IC180
FAN MOTOR DRIVE
IC180
BA00BC0WFP-E2
0
C
5
0
OUT
4
GND/FIN
6
13.3
VCC
2 0
CTL
1
R186
1k
C181
0.33 22
16V
6 7
IC151
+5V REGULATOR
IC151
10
RT7256ALZSP
C160
0.1
9.9
CL163 CL166
1
BOOT
13.3
2 Vin
5.2
3
SW
CL152
4 GND
C151 C152 C155 C157
3300 10 10 0.01
25V
CL170
5.3 3.3
1 VDD Vout 5
2
GND
5.3
3 CE N.C. 4
R150
47k
IC153
R151
1.5k
+3.3V REGULATOR
IC153
S-1333A33-M5T1U3
R152 C154 C159 C166
6.8k 2.2 2.2 2.2
Q180
EMH11T2R
FAN MOTOR
SPEED CONTROL 0
5
0
3 4
0
R181 R182 R183 R184
330k 22k 22k 22k 6 1
2
R185
0
24k
45 45
8 9 10
E
L150
4.7uH
R153 R157
100k 0
R158
22k
3.5
8
SS
13
EN 7
R159
CL165
4.7k
6
NC
CL164
0.8
FB 5
C164 R160
2200p 4.7k
C162 R155 C167 C169 R161
0.1 10 22 22 100
9 5 4 1 2
11
RV190
M
VOLUME 12
10 8 7 6 3
UDA-1
11 12 13
IC190
VOLUME CONTROL
IC190
BA6956AN
1 2 3 4 5 6 7 8 9
CL190
C192 C193 C190 C191
470 0.01 0.1 0.1
10V
CN190
8P
CL191
1 F IN
CL192
(Page 33)
2 R IN
CL193
>05S
3 VR signal
CL194
4 STBY+3.3V
DIGITAL
5 STBY_GND
BOARD
CL182
(3/5)
6 FAN_CONT0
CL183 CN308
7 FAN_CONT1
CL184
8 FAN_CONT2
CN153
7P
CL154
1 D5V (Page 33)
2 D5V
CL155 >06S
3 DGND
CL156
4 STB+3.3V DIGITAL
CL157
BOARD
5 STB_GND
(3/5)
CL158
CN306
6 PW-RY
CL159
7 AC CUT