Acer AT1945 Service Manual page 56

U401J
POCE0# 252 95
POCE0_ U0RX
POOE# 251 94
POOE_ U0TX
PDD0 250
PDD0
PDD1 249 93 OIRI_MT5335
PDD1 OIRI
245 253
20 CI_RB PARB_ JTMS
248 1
20 CI_PDD2 PDD2 JTRST_
256
JTCK
255
JTDO
254
JTDI
MT5335PGU
+3V3SB
R457
10K OHM 1/10W
OIRI_MT5335 R485 NC/0 OHM 1/10W OIRI
OIRI
+3V3SB U407
5 1
VCC A
2
B
4 3
Y GND
NC/SN74LVC1G08DCKR
+3V3SB
Q407
2N7002 SOT-23
OIRI
USB_D-
8 USB_D-
USB_D+
8 USB_D+
ZD402 ZD408
DV10
U401I DDRV
DV33
14 10
VCCK VCC2IO
48 12
VCCK VCC2IO
57 16
VCCK VCC2IO
58 18
VCCK VCC2IO
61 27
VCCK VCC2IO
70 30
DVDD10 VCC2IO
162 52
DVDD10 VCC2IO
213 54
VCCK VCC2IO
206 55
VCCK VCC2IO
246 56
VCCK VCC2IO
DV33
64
VCC3IO_3
197
VCC3IO_3
247
VCC3IO_3
257
E-PAD
MT5335PGU
U0RX
U0RX 3
U0TX
U0TX 3
PDD1
PDD0 R411
POOE# 0 OHM 1/10W
POCE0#
JTMS
FRESET#
JTRST#
JTCK
JTDO
DV33
JTDI
R412 R422
4.7K OHM 1/10W 10K OHM 1/10W
DV33
C406
0.1UF16V
9,13
+3V3SB
R415
R414 4.7K OHM 1/10W
4.7K OHM 1/10W
CN405
U0TX
1
2
U0RX
3
4 ZD409
ZD407
5
+5VSB
NC/CONN
ZD403
ZD404
OPWM2 R421
4.7K OHM 1/10W
AOBCK R423
4.7K OHM 1/10W
R424 AOLRCK R425
4.7K OHM 1/10W NC
OPWM2 9,20
AOBCK 10
AOLRCK 10
Trap Mode OPWM2 AOBCK AOLRCK
Normal mode 0 0 0
ICE mode
0 0 1
Trap Mode OPCTRL5 OPCTRL4
Core Reset 1 us 0(AMP_MUTE) 1 (HPDIN)
U404
SPI FLASH
32M bit
15 3
D NC1
8 4
Q NC2
16 5
C NC3
7 6
S NC4
9 11
W NC5
1 12
HOLD NC6
14 13
NC8 NC7
2 10
Vcc GND
MX25L3205DMI-12G
C407
0.1UF16V
Cancel U403
JTRST# R482 33 OHM 1/10W
JTDI R483 33 OHM 1/10W
JTMS R491 33 OHM 1/10W
JTCK R496 33 OHM 1/10W
JTDO R416 33 OHM 1/10W
10K OHM 1/10W
诀贺箇痙
CN407
U0TX
1
2
CN406
U0RX
3
1
2
CONN
3
ZD406 ZD405
NC/CONN
DV33
C408 C409 C410 C411 C412
0.1UF16V 0.1UF16V 0.1UF16V 4.7uF/10V 1uF/16V
I / O BYPASS
DV10
C413 C414 C415 C416 C417 C418
4.7uF/10V 1uF/16V 0.1UF16V 0.1UF16V 0.1UF16V 0.1UF16V
CORE BYPASS Near IC
DDRV
C424 C425 C426 C427 C428 C429
4.7uF/10V 1uF/16V 0.1UF16V 0.1UF16V 0.1UF16V 0.1UF16V
DDR BYPASS Near IC
T P V ( Top Victory Electronics Co . , Ltd. )
絬 隔 瓜 絪 腹 T2848-C-X-X-3-071128
Key Component FLASH/JTAG/UART/IR/TRAP
Date Wednesday , March 26, 2008
56
DV33
RN401 R413
10KOHM +-5% 1/16W 1K OHM 1/10W
CN401
TVTREF#1 2 1
4 3
6 5
8 7
10 9
12 11
14 13
16 15
JTAG_DBGRQ 18 17
JTAG_DBGACK 20 19
R417
R418 R419 2*10 2.54mm
10K OHM 1/10W 10K OHM 1/10W
C419 C420 C421 C422 C423
0.1UF16V 0.1UF16V 0.1UF16V 0.1UF16V 0.1UF16V
C430 C431 C432
0.1UF16V 0.1UF16V 0.1UF16V
OEM MODEL AT1936 Size A3
TPV MODEL TV1968W-AED Rev C
PCB NAME
715T2848-C
称爹 <称爹>
Sheet 12 of 21