Key And Display - NAD 375BEE C Service Manual

33 1
P0.4 PROT
AD4/P0.4 MOSI/P1.5
P0.5 32 2 SCL
AD5/P0.5 MISO/P1.6
P0.6 31 3
AD6/P0.6 SCLK/P1.7
P0.7 30 4 RST
AD7/P0.7 P4.7/RST
29 5 RXD
EX_LVD/P4.6/RST2 RxD/P3.0
28 6
P4.1/ECI/MOSI SCLK/CCP1/P4.3
27 7 TXD
ALE/P4.5 TxD/P3.1
26 8 IR OUT
NA/P4.4 INT0/P3.2
P2.7 25 9 IR IN
A15/P2.7 INT1/P3.3
P2.6 24 10 P/EN
A14/P2.6 CLKOUT0/T0/P3.4
23 11
P2.5 P3.5
A13/P2.5 CLKOUT1/T1/P3.5
IC502 IC502
STC12C5A16S2-35C-LQFP44 STC12C5A16S2-35C-LQFP44
P501A P501A
1 IR IN FLICKER
2
IR OUT
3 BRIDGE STBY
4
+26V
5 VOL-
R548 R548
6 VOL+
+5VD
7 D551 D551 10mm Jumper 10mm Jumper
+5VS 4.7K 4.7K
8 TONE
9
10
10PIN2.54-A240B 10PIN2.54-A240B
R546 R546
P0.0
P502A P502A
4.7K 4.7K
1
+12V
2
R502 R502
3
+5VS
1K 1K
4
TP
5
STBY
6
6PIN2.54-A60B 6PIN2.54-A60B
IC505 IC505
+5VD
+5VD 16
VDD
D517 D517
1N4148 1N4148
S IR OUT
1
IC504 IC504 D518 D518
15
IS1U60L IS1U60L 1N4148 1N4148 OE
OE
SCL 3
CLK
2
P0.1
D
1
P3.5
STR
R506 R506
P3.7
CD4094BNSR CD4094BNSR
+5VD
10K 10K
R507 R507
P1.3 TONE
10K 10K
R509 R509
IR IN
R567 R567
P0.5
10K 10K
R505 R505 1K 1K
10K 10K
J501 J501 R508 R508
4 P3.6 RST
5
1K 1K
1
2
3
PHONE JACK PHONE JACK
OSC1
X501 X501
OSC2
11.0592MHZ 11.0592MHZ
C506 C506 C505 C505
22pF 22pF /1KV 22pF 22pF /1KV
All Polyester capacitors are 63V 5% unless noted.
All Elec. capacitors are 50V 20% unless noted.
All Resistor are 1/6W 5% RJ13 unless noted.
P2.7
P2.6
P0.7
S501 S501 S502 S502
IT-1102D-1160 IT-1102D-1160 IT-1102D-1160 IT-1102D-1160
SP A SP B
P2.3
P2.4
P2.5
P1.3
+12V
R513 R513 R514 R514
56 56 56 56
J502 J502 D502 D502
DGND 4 1N4148 1N4148
RXD 3
TXD 2
1
+5VD D503 D503
1N4148 1N4148
R534 R534 R535 R535
CON4 CON4
1K 1K 1K 1K
+ +
R512 R512
C522 C522
10K 10K
R527 R527
100uF 100uF /16V
10K 10K
R550 R550
Q535 Q535
2SC1815 2SC1815
4.7K 4.7K
D545 D545 D546 D546 D547 D547
1N4148 1N4148 1N4148 1N4148 1N4148 1N4148
R549 R549
Q534 Q534
2SC1815 2SC1815
4.7K 4.7K
R547 R547
Q533 Q533
C518 C518
2SD667 2SD667
1K 1K R553 R553
R552 R552 4.7K 4.7K
10uF 10uF
Q502 Q502
4.7K 4.7K
R554 R554 R555 R555
2SC1815 2SC1815
4.7K 4.7K 4.7K 4.7K
9
+5VD
QS
10
QS
11 SP A
Q8
12
SP B RED
Q7
13
Q6
14 PHONO
Q5
7
EXTRA AMBER
Q4
6 RED
Q3
5
BLUE
Q2
4 AMBER BLUE
Q1 R521 R521
8
330 330
VSS R520 R520
130 130
R551 R551
OE
10K 10K
+ +
C521 C521 C509 C509 C510 C510
100nF 100nF
100uF 100uF /16V 100nF 100nF
G501 G501
1
R525 R525
GND-8 GND-8
C507 C507
100 100
10nF 10nF
S503 S503 S504 S504 S505 S505
IT-1102D-1160 IT-1102D-1160 IT-1102D-1160 IT-1102D-1160 IT-1102D-1160 IT-1102D-1160
MP CD TUNER
R515 R515 R516 R516 R517 R517 R529 R529 R530 R530
56 56 56 56 56 56 56 56 56 56
R536 R536 R537 R537 R538 R538 R539 R539 R540 R540
1K 1K 1K 1K 1K 1K 1K 1K 1K 1K
MP/R MP/F
D509 D509
BL-BB5B5201-B BL-BB5B5201-B
D538 D538
D536 D536
D548 D548 D539 D539 D540 D540
1N4148 1N4148
1N4148 1N4148
1N4148 1N4148 1N4148 1N4148 1N4148 1N4148
R556 R556 R570 R570 R557 R557
C519 C519
4.7K 4.7K 4.7K 4.7K 4.7K 4.7K
10uF 10uF
1 2 P0.0
3
P0.1
4 P0.2
5
P0.3
6 P0.4
7 P0.5
8
P0.6
D504 D504
9 P0.7
R522 R522
1
R510 R510
10Kx8 10Kx8
130 130
3 2 1 2
P2.0
3
P2.1
4 4 P2.2
5
P2.3
Three LED Three LED
6 P2.4
7
P2.5
8 P2.6
9 P2.7
+5VD
R511 R511
10Kx8 10Kx8
C511 C511 C513 C513
C512 C512
100nF 100nF 100nF 100nF 100nF 100nF
C502 C502 100nF 100nF
IC501 IC501
C501 C501
1 16 +5VD
C1+ VCC
2 15
DGND
V+ GND
100nF 100nF
3 14 T1OUT
C1- T1OUT
4 13
C503 C503 100nF 100nF R1IN
C2+ R1IN
5 12 R566 R566 RXD
C2- R1OUT
10 10
C504 C504 100nF 100nF 6 11 TXD
V- T1IN
7 10
R565 R565
T2OUT T2IN
8 9
10 10
R2IN R2OUT
SP232EEP SP232EEP
- 59 -
S506 S506 S507 S507 S508 S508
IT-1102D-1160 IT-1102D-1160 IT-1102D-1160 IT-1102D-1160 IT-1102D-1160 IT-1102D-1160 IT-1102D-1160 IT-1102D-1160
DISC AUX TAPE2 TAPE1
R531 R531 R532 R532
56 56 56 56
D532 D532
1N4148 1N4148
Q530 Q530 Q531 Q531
R526 R526
2SA1015 2SA1015 2SA1015 2SA1015
4.7K 4.7K
D533 D533
R541 R541 R542 R542
1N4148 1N4148
1K 1K 1K 1K
DISC PHONO
D512 D512
BL-BB5B5201-B BL-BB5B5201-B
D544 D544
1N4148 1N4148
D535 D535
1N4148 1N4148
D541 D541
R571 R571
1N4148 1N4148
4.7K 4.7K
R572 R572
4.7K 4.7K
R558 R558 R559 R559
+ +
4.7K 4.7K 4.7K 4.7K
C520 C520 R560 R560 R561 R561
10uF 10uF 4.7K 4.7K 4.7K 4.7K
MM/MC
Q551 Q551
2SC1815 2SC1815
AUX
TAPE2
R524 R524
DISC
+5VD
TAPE1
N.I. N.I.
MP R
CD
R523 R523
MP F
10K 10K
TUNER
R1IN
TO MAIN BOARD P205B
R568 R568
PROTECT
D501 D501
+5VD
+5VS
10mm Jumper 10mm Jumper + +
C517 C517
1000uF 1000uF /10V
+12V

KEY AND DISPLAY

S509 S509 S510 S510 S511 S511
IT-1102D-1160 IT-1102D-1160 IT-1102D-1160 IT-1102D-1160
TONE POWER
R533 R533 R518 R518 R519 R519
56 56 56 56 56 56
Q532 Q532 Q509 Q509 Q510 Q510
2SA1015 2SA1015 2SA1015 2SA1015 2SA1015 2SA1015
R543 R543 R544 R544 R545 R545
1K 1K 1K 1K 1K 1K
D542 D542 D543 D543
D549 D549
1N4148 1N4148 1N4148 1N4148 1N4148 1N4148
R562 R562 R563 R563 R564 R564
4.7K 4.7K 4.7K 4.7K 4.7K 4.7K
P503A P503A
1 2 SP A
3 4
SP B
5 6 PROTECT
7 8
SCLED
9 10 MUTE
11 12 +5VD
13 14
EXTRA
15 16 P/EN
17 18
MM/MC
19 20 T1OUT
CON2X10 MALE CON2X10 MALE
PROT
10K 10K
R569 R569
D534 D534
2.2K 2.2K
4.7V 4.7V
P504A P504A
1
2
3
4
5
5PIN 2.54-760B 5PIN 2.54-760B