Buhs Board Schematic Diagram (18 Of 18) - Sony KDL-40NX705 Service Manual

BUHS BOARD SCHEMATIC DIAGRAM (18 OF 18)

1 | 2 | 3 | 4 | 5 |
A
—
REG+12V
B
—
C
C3703
3.15A
0 . 1
50V
X7R
—
1608
F3700
3.15A
24V
D
IC3700
BD9540EFV
—
BOOT1 HG1
NC SW1
U_PWR_CTRL_1.0V EN1 LG1
E
VOUT1 PGND1
FB1 ILIM1
NC
POWER+5V
—
GND 5VREG
CTL1 VCC
CTL2 TEST
R3721
F FB2 ILIM2
220
C3700 1/16W
680p RN-CP
50V 0.5% VOUT2 PGND2
X7R
R3702 R3704 EN2 LG2
C3714
12k 4 . 7 k
0 . 0 0 1
— 1/16W 1/16W
50V NC SW2
RN-CP RN-CP
X7R
0.5% 0.5%
BOOT2 HG2
R3700 C3701 R3703 C3712 R3705
10k 680p 3 . 3 k 0 . 0 0 1 10k
1/16W 50V 1/16W
G 1/16W 50V
CHIP X7R RN-CP
RN-CP X7R
5% 0.5%
0.5%
C3702
0 . 1
50V
X7R
—
1608
H
—
I
—
J
—
GND_D
K
—
L
—
M
—
N
—
O
—
P
KDL-40NX705/46NX705
6 | 7 | 8 | 9 | 10 | 11 |
+3.3V_MAIN
L3700
2.2uH
VLC5045-2R2N
145773011
JL3711 JL3712
3 2 4
C3713 C3716 C3717
22 22
22
6 . 3 V 6 . 3 V 6 . 3 V
X6S X6S
X6S
2012 2012 2012
1 5 6
JL3701
C3707
10
16V
X6S
3216
POWER+5V
VIN
C3704
4 . 7
16V
X6S
2012
C3711
2 . 2
6 . 3 V
X6S
1608
R3706 R3707
100k 47k
1/16W 1/16W
CHIP CHIP
6 5 4
D3 D2 D1
RP1E100RNFPFTR
Q3701
S1 S2 G
D+1.05V
1 2 3 L3701
1.0uH
VLC5045-1R0N
145786411 JL3713 JL3714
6 5 4
D3 D2 D1
C3709 C3715 C3718 C3721
10 22 22 22
16V 6 . 3 V 6 . 3 V 6 . 3 V
X6S X6S X6S X6S
3216 RP1E100RNFPFTR 2012 2012 2012
Q3702
S1 S2 G
C3760 C3761
10 10
1 2 3
16V 16V
X6S X6S
3216 3216
3.15A
F3701
3.15A
24V
C3708 C3729 C3731
10 10 10
16V 16V 16V
X6S X6S X6S
3216 3216 3216
PGND
VREG
PGND VCC
PGND ILIM
IC3701
PGND GND
BD95503MUV-E2
PGND VFB
SW VOUT
U_POWER2
C3733
0 . 1
50V
X7R
1608
GND_D
12 | 13 | 14 | 15 | 16 | 17
PLL+1.05V
JL3719 JL3720
U_PWR_CTRL_1.0V
C3720
1 C3726
6 . 3 V 1
X6S 6 . 3 V
X6S
1005
JL3704
GND_D
A+1.8V
IC3702
S-1132B18-M5T1G
JL3717 JL3718
VIN VOUT
VSS
U_PWR_CTRL_DDR2 ON/OFF NC
GND_D JL3703
JL3715 JL3716
4 5 6
S D D
Q3703
RTQ035P02TR
C3723 R3713
1 4 . 7 k G D D
6 . 3 V 1/16W
X6S CHIP 3 2 1
1005
R3714
1k
1/16W
CHIP
5%
Q3704
U_PWR_CTRL_3.3V
DRC5114E0L
GND_D
A+3.3V
+5V_MAIN
JL3721 JL3722
5 4
C3728
C3722
1
0 . 1 6 . 3 V
16V X6S
X7R 1005
1005
1 2 3
U_PWR_CTRL_3.3V
3.15A
F3703
JL3705
3.15A
GND_D
24V
C3751
10
16V
X6S
3216
PGND
PGND
PGND
PGND
PGND
SW
R3727 R3728
33k 1k
1/16W 1/16W
RN-CP RN-CP
0.5% 0.5%
U_PWR_CTRL_DDR2
+5V_MAIN
C3735 R3723
2 . 2 5 . 6 k
10V 1/16W
X7R RN-CP
2012 0.5%
E JL3731 JL3732 GND_D
1 2
L3702
4.7uH
NR5040T-4R7N
145787311
GND_D C3738 C3739 BUHS 18/18
22 22
6 . 3 V 6 . 3 V
X6S X6S
2012 2012
POWER
| 18 | 19 | 20 | 21 | 22 |
+12.5V STBY_+3.3V
JL3805
JL3807
1 STBY_+3.3V
C3800
2 AUDIO+12.5V
0 . 1
16V JL3802
X7R
3 AUDIO+12.5V_GND
1
GND_AU 1005
REG+12V 4 REG+12.5V_GND
5 REG+12.5V_GND
JL3804
6 REG+12.5V
C3807
0 . 0 1 7 REG+12.5V
25V
X7R
8 T-CON_VCC(12.5V/5V)
1005
CN3800
8P
PANEL_VCC_SW
182160711
JL3806
JL3803
C3804
GND_D
0 . 1
D+3.3V
+5V_MAIN D+3.3V
RB3800
10k
DC_ALERT
1 4
R3808
2 5
100k
1/16W
CHIP
5%
1005
3 6
Q3800
RT3N11M-TP-1
GND_D
VREG
VCC
R3742
ILIM 4 . 7 k
1/16W
IC3706
RN-CP
GND
BD95503MUV-E2 0.5%
VFB
VOUT
DDR2_+1.8V
C3754 R3741
C3752 2 . 2 3 . 3 k
10V 1/16W
0 . 1
X7R RN-CP
50V
2012
X7R
1608 JL3706 JL3707
C3757
22
GND_D 6 . 3 V
X6S
2012
KDL-40NX705/46NX705
26