Main Net - Panasonic DMR-EX75EG Service Manual

13.3. MAIN NET

X_SW_3R3V
X_SW_3R8V
P
IP1501
LB1503
1 2
C1504
(TO POWER)
P1501
X_SW15R5V 1
X_SW5R8VT 2
X_SW5R8V 3
X_SW5R8V 4 D1501
LB1504
X_SW5R8V 5 $
C1503
X_SW5R8V 6
GND 7
GND 8 C1505
GND 9 P_GND $
GND 10
GND 11 R1520
X_SW12V 12
C1545 C1518
X_SW12V 13
LB1502 $)
X_SW12V 14 *
X_SW12V 15
X_SW3R8V 16
X_SW3R8V 17 LB1506
P_ON_H 18
X_SW3R8V 19
P_SAVE_L 20
FANLOCK 21
FAN_GND 22
FANOUT 23
P_GND
FANLOCK
FANOUT
P_SAVE_L
DR_P_ON_H
DI_PON_H
HDD_PFAIL
IC1522
Reset_DR5V
*
K1590 K1591
5
VCC
C1519
GND
* NC SUB
1
ZJ7401
K1594
$
K1593
K1592
LB7406
Q1502
*
1 8
S D
2 7
C1528 S D DR12V
* R1519
3 6 L1506
* S D
$
4 5
G D
R1518
*
QR1501
*
R1521 C1544
$
P1503
C1520 C1535
*
*
DR12V 1
DR_GND 2
DR_GND 3
DR5V 4
(TO HDD)
ZJ7402
Note:
Marked $ (spare) parts are not assembled
* Optional Parts
IC7507
5 4
ON(H) GND
6 3
NC CN
7 2
NC NC
8 1
VIN VO
BOOSTER 5V
C1538 C1540
IC1504
D5V
X_SW_3R3V
R1508
Q1501
R1507
C1522
R1501
D1502
C1526 R1506
IC1521
IC1520
5 4
ON(H) GND
5 4 6 3
NC CN
VO NC
ANA5V 7 2
NC NC
VIN GND CNT
1 2 3 8 1
LB1509 VIN VO
ANA3R3V
R1504
$
R1503
C1508
$
DDGND
K7494 K7495
ZJ7420
K7493
K7485
$
K7497
K7498
4
VOUT
GND
2 3
DRGND
IC1506
DR5V
R1509
L1505
*
R1511
R1510 C1517
C1516
$ C1513
*
$
C1521
IC1508
R1513 $
R1515
1 8
VIN VOUT
2 7
R/C amp-
L1501
R1517
3 6 R1505
OSC ampout
R1514
4 5
S/S GND $
R1516
D1R8V C1527
L1502 LB1508
L1503
C1546
D1504 C1533
$
GND_1R8V
K7484
QR1502
K7506
IC4011
L4001
5 4
VO VIN
AU5V
NR GND CNT
1 2 3
AU_GND
R7402
L1504
LB7407
K7407
$
P7402
88-PIN CONNECTOR
DDGND
1 GND GND 2
3 GND GND 4
5 GND GND 6
7 GND GND 8
9 GND GND 10
11 GND GND 12
13 XINTP DR12V 14
15 16
SCLK DR12V
17 XINTM DRGND 18
19 SBPTM DRGND 20
21 SBMTP DR5V 22
23 XMREQ DR5V 24
25 AU5V ITM2A 26
27 XDMUTE IT A2M 28
29 AADC_L POFF_L 30
31 AADC_R XFWE 32
L7401
C7403 33 AGND D3R3V 34
$
35 AGND I2C5DT 36
37 AGND I2C5CK 38
39 MIXLOUT_DM IT_CK 40
C7408
41 MIXROUT_DM XSW3R2V/D3R3V 42 $
43 GND IECOUT 44
R7410
45 GND GND 46
47 GND UARTP2M 48
$
C7409
49 GND UARTM2P 50
51 Y OUT_DM POFF_L3 52
LB7409
53 GND CSYNC_IN 54
R7409 $
55 COUT_DM ANA3R3V 56
K7404
57 58
GND EPG_ON_H/BUSY
C7449 $
59 RPROUT_DM X_SW_3R8V 60
61 GND X_SW_3R8V 62 LB7405
63 GPY OUT_DM X_SW_12V 64
65 GND X_SW_12V 66
LB7402
67 BPBOUT_DM X_SW_12V 68
69 GND X_SW_12V 70
C7410
71 V_YIN_DM X_SW_12V 72 $
LB7403
73 GND X_SW_12V 74
75 CPNCIN_DM ANA5V 76
77 GND GND 78
C7411
79 BS-ON EPG_VIDEO 80
$
81 GND GND 82
83 G_IN RGB_CPSVIN 84
85 GND GND 86
87 B_IN R_IN 88
55
DMR-EX75EG / DMR-EX75EC / DMR-EX75EB / DMR-EX85EG / DMR-EX85EB
R7401
$
QR7403
QR7401 QR7402 $
$
C7412
C7413 PP7401
R7406
C7416 18 GND
$ 17 ANT_POWER
16 ANT_SHORT
15 BOOSTER_5V
14 GND
13
12
11 UNREG_38V
10 X_SW_5R8V
9 TU_P_ON_H
8
C7450 C7407
7 SIF_OUT
6 AUDIO_OUT
$ 5 VIDEO_OUT
$
4 GND
3 IF_OUT_[+]
2 IF_OUT_[-]
1 IF_AGC
IC7403
5 4
ON(H) GND
6 3
NC CN
7 2
NC NC
8 1
VIN VO
PS5V
R7421
IC7401
R7422
PS11R6V
LB7413
C7439
C7401
$
K7486
R7446
K7487
P7412
12 DEC_AUD_L
11 AGND
10 DEC_AUD_R
K7483 9 AGND
* 8 DEC_Y_OUT
7 AGND
6 DEC_C_OUT
5 IF_AGC
4 AGND
3 IF_OUT_[-]
IF_OUT_[+]
2
1 RESET_3R3V
P7413
BE_GND
11
GND
LB7410
10 PS11R6V
9 GND
LB7412
8 D3R3V
7 D1R8V
6 SYS_PFAIL_H
5 ASCO_TXD
4 ASCO_RXD
3 T_CS
2 T_DA T A
1 T_CLK
IC7405
5 4
VO NC
K7488
BE_D3R3V
VIN GND CNT
1 2 3
LB7414 K7499
C7418
IC7404
K7496
$
K7492
DDGND
DMR-EX75EG/EC/EB
DMR-EX85EG/EB
MAIN NET
SCHEMATIC DIAGRAM
ZJ7404
SDA
SCL
AFC
AFC
G_TU_VIDEO_A
QPSK
TU_AUDIO_IN
DR5V
SCL
SDA
RESET_3R3V
GND
G_DT_C_IN_A
G_DT_Y_IN_A
G_DT_IN_R_A
G_DT_IN_L_A
ZJ7421