Panasonic TH-42PZ80Q Service Manual page 48

11.8. DT-Board Schematic Diagram
A
B
C
D
E
F
TH-42PZ80Q
DT-Board Schematic Diagram
1 2
! DT-BOARD TNPA4572S
!
TU4400
J3FYY0000009
DOCSIS
(FOR OCAP)
GND
1
C4405
GND
2 R4404 50V
0.01u
0
DOC_US
US
3
GND
4
GND
5
GND
6 R4405
0 DOC_DS
DS
7
GND
8 R4406
0 DOC_RST
RESET#
9
N.C.(JATG_TCK) FOR
10
FACTORY
N.C.(JATG_TMS)
11 USE
N.C.(JATG_TDO)
12
5V_OCAP
DT1
N.C.(JATG_TDI)
13
1
GND
14
TP4400
2
UART_RX
15
TP4401
3
UART_TX
16
4
GND
17
R4400 0 DOC_LAN_TD+
LAN_TD+
18
R4401 0
DOC_LAN_TD-
LAN_TD-
19
GND
20
R4402 0
DOC_LAN_RD+
LAN_RD+
21
R4403
0 DOC_LAN_RD-
LAN_RD-
22
GND
23
N.C.
24
ETHER_LED
25
DS_LED
26
US_LED
27
LINK_LED
28
CABLE_LED
29
GND
30
5V_OCAP
TP4404
DC_IN
31
C4408
DC_IN
32
C4400 C4401
C4402
50V
25V 16V
C4407
1000p 0.1u 1000u
D4400
B0BC6R600005
3 4
DOC_LAN_RD-
DOC_LAN_RD+
DOC_LAN_TD-
DOC_LAN_TD+
DOC_RST
DOC_US
DOC_DS
F15V
IC4400
L4400
25V J0JHC0000075
1u
C0DBAYY00183
R4407 AVR 5V
100k C4416
C4425
50V R4408 25V
0.01u 0 0.1u
1 BS 8
SS
C4412 C4414
TP4402
L4402 25V 25V
25V G1C100MA0203 10u 10u
2 7
47u VIN
EN
C4417
25V
0.1u
3 SW 6
COMP
D4401
R4410
B0JCME000037 C4426
4 5 45.3k 50V
C4413 GND
C4415 3900p
10V 10u FB
10V 10u
D4402 R4409 R4411
L4404
B0BC4R700007 10k
G1C330M00027 10k
5V_OCAP
L4401
J0JHC0000045
C4409 C4410 C4411
25V 50V 25V
0.1u 0.01u
0.1u
ZA4400 ZA4401
TP4406 K4AZ01D00004 K4AZ01D00004 K4AZ01D00004
5 6
48
TP4407
15
TP4408
14
13
12
TP4409
11
TP4410
10
TP4405
9
8
TP4411
7
6
5
TP4412
4
3 F15V
TP4403
2
1
PA4400 C4428
K5H1622A0031 50V
0.01u
DT25 C4429
25V
0.1u
TO
A-BOARD
(A25)
ZA4402
TH-42PZ80Q
DT-Board Schematic Diagram
7 8 9