Schematic Diagram - Main Board (1/8) - Sony GTK-XB90 Service Manual

2020/08/20 22:42:53 (GMT+09:00)
GTK-XB90
GTK-XB90
5-4.

SCHEMATIC DIAGRAM - MAIN Board (1/8) -

1 2
MAIN BOARD (1/8)
A
XP20 XP20
7
POWER INPUT 7
6
6
5
5
4
4
3
3
2
2
1
1
7PIN/2.0mm 7PIN/2.0mm
C22 C22 0.1uF/50V/X7R 0.1uF/50V/X7R
U21 U21
TPS54240 TPS54240
B PW_MAIN
1 10
BOOT PH
FB5 FB5 0 0 2 9
VIN GND
3 8
EN COMP
4 7
SS/TR VSNS
5 6
RT/CLC PWRGD
R2 R2
200K 200K
+ +
C36 C36
R72 R72
R103 R103
200K 200K
22K 22K 0.1uF 0.1uF
C
Close to VIN
STB_5V U32 U32
TLV62085 TLV62085
7 6 L18 L18 2.2uH/3.4A 2.2uH/3.4A
VIN SW
1 4
EN VOS R335 R335
47K/1% 47K/1%
3
FB
5 2
GND PG CE12 CE12 C48 C48
C391 C391
+ +
R336 R336
D 15K 15K
VOUT=0.8*(47+15)/15=3.3V
STB_5V STB_3.3V
STB_3.3V
3.3V_D1
S D
Q11 Q11
C29 C29 R10 R10
P_AP2305 P_AP2305
E 0.1UF 0.1UF 100K 100K
R203 R203
4.7K 4.7K
3.3V_D1_EN
POWER CONTROL 3.3V
U2 U2
SGM203-2ADJ3 SGM203-2ADJ3
close to LDO 1 5
3.3V_D1 VIN VOUT
C16 C16
R23 R23
F
3 4
47K 47K R21 R21
0.1UF 0.1UF EN ADJ/SENSE
15K/1% 15K/1%
GND
R19 R19
12K/1% 12K/1%
Vout=0.8*(1+15/12)=1.8V
3.3V 1.8V
3 4
PW
R957 R957
C76 C76
NC/10K NC/10K
C78 C78
V_12V
C37 C37
C13 C13
470pF/50V/X7R 470pF/50V/X7R 470pF/50V/X7R 470pF/50V/X7R
R29 R29
100 100
+12V
L2 L2
1 2 D6 D6 MBRX180/80V/1A MBRX180/80V/1A
R35 R35
3
NC/56 NC/56
22uH-48uH 22uH-48uH
R8 R8
R34 R34
49.9K/1% 49.9K/1%
20K 20K
R7 R7 R97 R97 + +
CE4 CE4 C9 C9
C110 C110 D9 D9
C20 C20 + +
SS34B 3A/40V SS34B 3A/40V
10uF 10uF
VOUT=0.8V*(1+49.9K/9.4K)=5.04V
+12V
V_12V
R4 R4
STB_3.3V
Q3 Q3
C19 C19 R840 R840 PNP_3CG3906M PNP_3CG3906M
15 15 ZD1 ZD1
0.1UF 0.1UF
100K 100K ZMM12V/12V ZMM12V/12V
R841 R841
D5 D5
10K 10K 2 3.3V_D1_EN
3
1
5V_D1_EN
R239 R239 10K 10K
POWER_EN1 Q4 Q4
NPN_3DG3904M NPN_3DG3904M
BAT54C BAT54C
C21 C21
R236 R236
47K 47K
0.1UF 0.1UF
POWER CONTROL 12V
STB_3.3V
3.3V_D2
S D
Q13 Q13
C127 C127
R43 R43
P_AP2305 P_AP2305
0.1UF 0.1UF
100K 100K
R204 R204
1K 1K
R28 R28 10K 10K Q17 Q17
3.3V_D2_EN
NPN_3DG3904M NPN_3DG3904M
C41 C41
R27 R27
47K 47K
0.1UF 0.1UF
POWER CONTROL 3.3V
1.8V_D
C30 C30
0.1UF 0.1UF
26 26
5 6 7
C18 C18 0.1uF/50V/X7R 0.1uF/50V/X7R
PW_MAIN TPS54240 TPS54240
1
BOOT PH
FB2 FB2 0 0 2
VIN GND
3
EN COMP
4
SS/TR VSNS
5
RT/CLC PWRGD
R1 R1
STB_5V
NC/200K NC/200K
POWER_EN
POWER_EN
+ + U15 U15
C26 C26
R69 R69
R99 R99
200K 200K
22K 22K 0.1uF 0.1uF
Close to VIN
3.3V_D2
STB_5V 5V_D1
Q226 Q226
PNP_3CG3906M PNP_3CG3906M
R839 R839
10K 10K
R206 R206
1K 1K
5V_D1_EN
Vout=0.8*(8.2/15+1)=1.24V
STB_5V
5V_D2
S D
Q14 Q14
C163 C163
R75 R75
P_AP2305 P_AP2305
0.1UF 0.1UF
100K 100K
R207 R207
1K 1K
R36 R36 10K 10K Q18 Q18
5V_D2_EN
NPN_3DG3904M NPN_3DG3904M
C100 C100
R33 R33
47K 47K
0.1UF 0.1UF
POWER CONTROL 5V
8 9
USB_5V
10 L16 L16 10uH 10uH
9
8
R5 R5
7
49.9K/1% 49.9K/1%
6
R20 R20 R25 R25
R6 R6
20K 20K NC/56 NC/56
C6 C6
+ +
D1 D1
SS34B 3A/40V SS34B 3A/40V
10uF 10uF
C109 C109
C15 C15
VOUT=0.8V*(1+49.9K/9.1K)=5.18V
1.2V_D
U4 U4
SGM203-2ADJ3 SGM203-2ADJ3
1 5
VIN VOUT
R57 R57
8.2K/1% 8.2K/1%
3 4
EN ADJ/SENSE
C25 C25
GND
10UF/6.3V/X5R 10UF/6.3V/X5R
C47 C47
C84 C84 10UF/6.3V/X5R 10UF/6.3V/X5R
R58 R58
10K 10K
0.1UF 0.1UF
R22 R22
15K 15K
SYS SET