A Board Schematic Diagram (2 Of 16) - Sony KDL-32BX320 Service Manual

A BOARD SCHEMATIC DIAGRAM (2 OF 16)

1 | 2 | 3
A
—
12V_SW +5V_SW
R219 R219
B
0R0805-PAD-1-GP 0R0805-PAD-1-GP
+5V_SW _1
EN1#
—
EN2#
C222 C222 C223 C223 C224 C224 C225 C225
FB1
FB2
C
BP
C226 C226
—
D
COMP1 COMP2
—
C234 C234
SC680P50V2KX-2GP SC680P50V2KX-2GP
COMP1A COMP2A
E
R232 R232
91KR2F-GP 91KR2F-GP
—
F
12V_SW
R237 R237
— 100KR2J-1-GP 100KR2J-1-GP
1 2 EN
C240 C240
SCD1U16V2KX-3GP SCD1U16V2KX-3GP
G
1 2 BOOT_1
C246 C246 C247 C247 C248 C248
—
H
—
I
—
KDL-32BX320/32BX321/32BX420/32BX421/40BX420/40BX421/46BX420/46BX421
| 4 | 5 | 6
L216 L216
IND-6D8UH-103-GP IND-6D8UH-103-GP
SW _DDRV 2 1
C216 C216
TPS54291-GP TPS54291-GP PHASE1
IC216 IC216
1 8 COMP1
PVDD1 COMP1
16 9 COMP2 R222 R222
PVDD2 COMP2
10R3F-GP 10R3F-GP
5 3
EN1# SW1
6 14
EN2# SW2
2
BOOT1
15 4
BOOT2 PGND1
13
PGND2
7
FB1
10 11
FB2 GND
12 17
BP THERMAL_PAD
L218 L218
IND-4D7UH-208-GP IND-4D7UH-208-GP
1 2
SW _5V
C228 C228
SCD047U16V2KX-1-GP SCD047U16V2KX-1-GP C227 C227
Boot1A 1 2
Boot2A 1 2 PHASE2
C232 C232
SCD047U16V2KX-1-GP SCD047U16V2KX-1-GP R230 R230
10R3F-GP 10R3F-GP
C235 C235
SC680P50V2KX-2GP SC680P50V2KX-2GP
R233 R233
91KR2F-GP 91KR2F-GP
L219 L219
IND-6D8UH-103-GP IND-6D8UH-103-GP
+1V_SW 2 1
IC217 IC217
1 9 NC NC R240 R240
BST GND
2D2R3-1-U-GP 2D2R3-1-U-GP
2 8 SS
VIN SS
3 7 EN
SW EN
4 6
GND COMP
5
FB
FB
PHASE3
BD9329EFJ-GP-U BD9329EFJ-GP-U C249 C249 C250 C250
NC NC
C251 C251
R245 R245
| 7 | 8 | 9 |
TP218 TP218
TPAD71-GP TPAD71-GP
DDRV
C217 C217 C218 C218 C219 C219 R217 R217
R1 20K5R2F-GP 20K5R2F-GP C236 C236
SC100P50V2JN-3GP SC100P50V2JN-3GP +1V
FB1
R2 R223 R223
16K2R2F-GP 16K2R2F-GP
Vout=0.8*(1+R1/R2)
+5V_SW
R225 R225 C237 C237
C229 C229 C230 C230
R1 20K5R2F-GP 20K5R2F-GP SC100P50V2JN-3GP SC100P50V2JN-3GP
+5V_SW
FB2
R231 R231
3K83R2F-GP 3K83R2F-GP
R2
Vout=0.8*(1+R1/R2)
DDRV
TP211 TP211
TPAD71-GP TPAD71-GP
1 2
R259 R259
AVDD10_DAC
0R0603-PAD-1-GP 0R0603-PAD-1-GP
+1V
C252 C252
C241 C241 C242 C242 C243 C243 C244 C244 R241 R241
R1 3K83R2F-GP 3K83R2F-GP
FB
R2 R244 R244
15K8R2F-GP 15K8R2F-GP
KDL-32BX320/32BX321/32BX420/32BX421/40BX420/40BX421/46BX420/46BX421
10 | 11 | 12 |
12V_SW
R216 R216
R218 R218
100KR2J-1-GP 100KR2J-1-GP
10KR2J-3-GP 10KR2J-3-GP
R221 R221 EN2#B 1 2 EN2#
10KR2J-3-GP 10KR2J-3-GP
1 2 EN2#A EN2#A B
Q216 Q216
C221 C221
+3V3SB
R224 R224
1KR2J-1-GP 1KR2J-1-GP R226 R226
10KR2J-3-GP 10KR2J-3-GP
R228 R228 EN1#B 1 2 EN1#
10KR2J-3-GP 10KR2J-3-GP
1 2 EN1#A B Q217 Q217
C233 C233
1% tolerance
RVREF2
DDRV
R234 R234
1 2
1KR2F-3-GP 1KR2F-3-GP
R235 R235
C238 C238
1% tolerance
RVREF1
R236 R236
1 2
1KR2F-3-GP 1KR2F-3-GP
R238 R238
C239 C239
1% tolerance
RVREF3
DDRV
R242 R242
1 2
1KR2F-3-GP 1KR2F-3-GP
R243 R243
C245 C245
A 2/16
DC CONVERTER II
1-857-903-11 <AZ2UK> A-P2
10