
41
TRIGGER
A U TO
O F F
A U TO
O F F
O F F
O N
O F F
O N
S O F T C LIPPIN G S W ITC H
TR IG G E R M O DE S W ITC H
IR IN
IR O U T 1
IR O U T 2
IR O U T 3
TR IG G E R IN
TR IG G E R O U T 1
TR IG G E R O U T 2
TR IG G E R O U T 3
F O R U L V E R S IO N :
Q 2 3 1 6 , Q 2 3 1 7 , Q 2 3 1 8 , Q 2 3 1 9 : N .I.
R 2 3 2 9 , R 2 3 3 0 , R 2 3 4 7 , R 2 3 4 8 : N .I.
R 2 3 3 1 , R 2 3 3 2 : 0 oh m
X M C O N N E C TO R F O R U L
DA B C O N N E C TO R F O R C E
N O TE
R 2 3 3 0 : 1 k
R 2 3 2 9 , R 2 3 4 8 : 4 .7 K
Q 2 3 1 6 , Q 2 3 1 7 , Q 2 3 1 8 , Q 2 3 1 9 : DTC 1 1 4 E K A
F O R C E V E R S IO N :
F O R C E V E R S IO N :
D2 3 0 7 : LL4 1 4 8
U 2 3 0 4 : LM 1 1 1 7 S 3 .3 V
C 2 3 0 9 : 1 0 u /1 6 V
N O TE
C 2 3 0 9 - C 2 3 1 1 : N .I.
U 2 3 0 4 : N .I.
D2 3 0 7 : N .I.
F O R U L V E R S IO N :
C 2 3 1 0 : 0 .1 u
C 2 3 1 1 : 4 7 u /1 6 V
N O T IN S E R TE D F O R C E
R 2 3 4 7 : N .I.
R 2 3 4 7 : N .I.
R 2 3 3 1 , R 2 3 3 2 : N .I.
R 2 3 0 3
2 .2 k
R 2 3 0 2
N .I.
C 2 3 0 1
0 .0 1 u
E
C
B
Q 2 3 0 1
DTC 1 1 4 E K A
R 2 3 0 4
1 0 k
E
C
B
Q 2 3 0 6
DTA 1 1 4 E K A
C 2 3 0 4
4 7 p
5 0 V
R 2 3 0 7
5 6 0
E
C
B
Q 2 3 0 7
DTC 1 1 4 E K A
E
C
B
Q 2 3 0 5
DTC 1 1 4 E K A
R 2 3 0 6
5 6 0
C 2 3 0 3
4 7 p
5 0 V
E
C
B
Q 2 3 0 4
DTA 1 1 4 E K A
E
C
B
Q 2 3 0 8
DTC 1 1 4 E K A
C 2 3 0 5
0 .1 u
5 0 V
R 2 3 0 9
3 3 k
R 2 3 0 8
1 0 K
R 2 3 1 0
1 0 0 k
R 2 3 1 1
3 .3 1 W
C 2 3 0 6
0 .1 u
5 0 V
E
C
B
Q 2 3 0 9
2 S B 1 2 7 5
R 2 3 1 2
3 .3 1 W
D2 3 0 1
1 N 4 1 4 8
D2 3 0 2
1 N 4 1 4 8
R 2 3 1 3
1 0 k
E
C
B
Q 2 3 1 0
DTC 1 1 4 E K A
E
C
B
Q 2 3 1 2
DTC 1 1 4 E K A
R 2 3 1 6
1 0 k
D2 3 0 4
1 N 4 1 4 8
D2 3 0 3
1 N 4 1 4 8
R 2 3 1 5
3 .3 1 W
E
C
B
Q 2 3 1 1
2 S B 1 2 7 5
C 2 3 0 7
0 .1 u
5 0 V
R 2 3 1 4
3 .3 1 W
E
C
B
Q 2 3 1 4
DTC 1 1 4 E K A
R 2 3 1 9
1 0 k
D2 3 0 6
1 N 4 1 4 8
D2 3 0 5
1 N 4 1 4 8
R 2 3 1 8
3 .3 1 W
E
C
B
Q 2 3 1 3
2 S B 1 2 7 5
C 2 3 0 8
0 .1 u
5 0 V
R 2 3 1 7
3 .3 1 W
E
C
B
Q 2 3 0 2
DTA 1 1 4 E K A
C 2 3 0 2
4 7 p
5 0 V
R 2 3 0 5
5 6 0
E
C
B
Q 2 3 0 3
DTC 1 1 4 E K A
1
C 1 +
2
V +
3
C 1 -
4
C 2 +
5
C 2 -
6
V -
7
T2 _ O U T
8
R 2 _ IN
9
R 2 _ O U T
1 0
T2 _ IN
1 1
T1 _ IN
1 2
R I_ O U T
1 3
R 1 _ IN
1 4
T1 _ O U T
1 5
G N D
1 6
V C C
U 2 3 0 1
DS 2 3 2
1
2
3
4
5
6
7
8
9
M 2 3 0 5
C 2 3 2 5
1 0 u
1 6 V
C 2 3 1 8
1 u
1 6 V
C 2 3 1 9
1 u
1 6 V
C 2 3 2 0
1 u
1 6 V
C 2 3 2 4
1 u
1 6 V
R 2 3 2 1
4 7
R 2 3 2 0
4 7
C 2 3 2 1
N .I.
5 0 V
C 2 3 2 2
N .I.
5 0 V
C 2 3 2 3
N .I.
5 0 V
2
4
6
S 2 3 0 2 -B
R 2 3 2 2
1 0 k
1
3
5
S 2 3 0 2 -A
1
3
5
S 2 3 0 1 -A
2
4
6
S 2 3 0 1 -B
98
7
65
4
3
21
1
2
3
4
5
6
7
8
9
M 2 3 0 6
1
2
3
4
M 2 3 0 7
R 2 3 2 4
1 .8 k
R 2 3 2 3
1 0 k
1
1 A
2
1 B
3
1 Y
4
2 A
5
2 B
6
2 Y
7
G N D
8
3 Y
9
3 A
1 0
3 B
1 1
4 Y
1 2
4 A
1 3
4 B
1 4
V C C
U 2 3 0 3
7 4 H C 8 6
C 2 3 1 4
1 0 u
1 6 V
C 2 3 1 5
0 .1 u
5 0 V
R 2 3 4 1
1 5 k
C 2 3 1 6
1 0 u
1 6 V
C 2 3 1 7
1 0 0 p
5 0 V
C 2 3 0 9
S E E N O TE
C 2 3 1 1
S E E N O TE
C 2 3 1 0
S E E N O TE
R 2 3 4 0
N .I.
R 2 3 3 9
0
R 2 3 2 9
S E E N O TE
E
C
B
Q 2 3 1 7
S E E N O TE
E
C
B
Q 2 3 1 8
S E E N O TE
R 2 3 3 0
S E E N O TE
R 2 3 3 2
S E E N O TE
R 2 3 3 1
S E E N O TE
D2 3 0 7
S E E N O TE
GN
D
O U T
IN
U 2 3 0 4
S E E N O TE
R 2 3 4 4
1 0 k
R 2 3 4 5
1 0 k
R 2 3 4 6
1 0 k
E
C
B
Q 2 3 2 1
DTC 1 1 4 E K A
E
C
B
Q 2 3 2 0
DTA 1 1 4 E K A
1
G N D
2
IN 2
3
IN 3
4
E N
5
O U T5
6
O U T6
7
O U T7
8
O U T8
U 2 3 0 2
TPS 2 0 1 1 A
C 2 3 2 6
0 .1 u
5 0 V
C 2 3 2 7
0 .1 u
5 0 V
E
C
B
Q 2 3 1 6
S E E N O TE
R 2 3 4 7
S E E N O TE
R 2 3 4 8
S E E N O TE
E
C
B
Q 2 3 1 9
S E E N O TE
C 2 3 2 9
1 0 u
1 6 V
1
2
M 2 3 0 1 -A
3
4
5
M 2 3 0 1 -B
1
2
M 2 3 0 2 -A
3
4
5
M 2 3 0 2 -B
1
2
M 2 3 0 3 -A
3
4
5
M 2 3 0 3 -B
1
2
M 2 3 0 4 -A
3
4
5
M 2 3 0 4 -B
C 2 3 3 1
0 .2 2 u
1
C H 1
2
C H 2
3
C H 3
4
C H 4
5
V N
6
C H 5
7
C H 6
8
V P
9
C H 7
1 0
C H 8
D2 3 0 8
C M 1 2 1 3 -0 8 M R
C 2 3 2 8
1 0 u
1 6 V
R 2 3 5 1
1 0 k
R 2 3 5 4
2 2
1
2
3
4
5
6
7
8
9
1 0
1 1
1 2
1 3
1 4
1 5
1 6
1 7
1 8
1 9
2 0
2 1
2 2
2 3
2 4
2 5
2 6
J2 0 0 7 B
To M A IN J2 0 0 7 A
R 2 3 5 5
N .I.
R 2 3 5 9
1 0 0
R 2 3 5 8
1 0 0
DG N D
DG N D
+ 5 V _ K
DG N D
DG N D
DG N D
DG N D
DG N D
DG N D
+ 1 2 V
DG N D
+ 5 V _ K
DG N D
+ 1 2 V
DG N D
DG N D
+ 1 2 V
DG N D
DG N D
+ 1 2 V
DG N D
+ 1 2 V
+ 1 2 V
+ 1 2 V
DG N D
DG N D
DG N D
DG N D
+ 5 V _ K
DG N D
C H G N D
C H G N DC H G N D
+ 5 V _ K
DG N D
DG N D
+ 5 V _ K
DA B _ IN
+ 5 V _ O U T
DG N D
DG N D
DG N D
IR _ R
IR _ O U T_ 2
IR _ O U T_ 1
TR IG _ IN
IR _ IN
TR IG _ O U T_ 1
TR IG _ O U T_ 2
TR IG _ O U T_ 3
DG N D
+ 5 V _ K
DG N D
DG N D
DG N D
+ 1 2 V+ 5 V _ K
DG N D
+ 3 .3 V
+ 5 V _ K
DG N D
DG N D
+ 5 V _ K
+ 3 .3 V
DG N D
DG N D
+ 5 V _ K
DG N D
DG N D
DG N D
DG N D
DG N D
+ 5 V _ K
DG N D
+ 5 V _ O U T
DG N D
DG N D
DG N D
+ 3 .3 V
+ 5 V _ K
DG N D
+ 5 .3 V
DG N D
DG N D
+ 5 V _ K
DG N D
+ 5 .3 V
DG N D
DG N D
DA B _ TX D_ 5 V
DA B _ R X D_ 5 V
DA B _ IN
S C _ 1
S C _ IN D
S C _ 2
2 3 2 _ TX D
A U TO /O F F
2 3 2 _ R X D
IR _ O U T_ 1
IR _ O U T_ 2
X M _ PW R
IR _ R _ M IX
TR IG _ IN
TR IG _ O U T_ 1
TR IG _ O U T_ 2
TR IG _ O U T_ 3
DG N D
+ 5 V _ K
+ 1 2 V
IR _ R
+ 5 .3 V
C H G N D_ JA C K
C H G N D_ JA C K
C H G N D_ JA C K
C H G N D_ JA C K
C H G N D_ JA C K
C H G N D_ JA C K
C H G N D
C H G N D_ JA C K
C H G N D_ JA C K
+ 5 .3 V
DA B _ R X D
DA B _ TX D
C H G N D_ JA C K
DG N D
Summary of Contents for T755
Page 8: ...8 WIRING DIAGRAM ...
Page 10: ...10 BLOCK DIAGRAM ...
Page 14: ...14 PCB LAYOUT POWER AMPLIFIER FRONT AMP BOARD COPPER SIDE ...
Page 15: ...15 FRONT AMP BOARD COMPONENT SIDE ...
Page 16: ...16 SURROUND AMP BOARD COPPER SIDE ...
Page 17: ...17 SURROUND AMP BOARD COMPONENT SIDE ...
Page 18: ...18 DSP BOARD COPPER SIDE ...
Page 19: ...19 DSP BOARD COMPONENT SIDE ...
Page 20: ...20 KEY BOARD COMPONENT SIDE KEY BOARD COPPER SIDE ...
Page 21: ...21 F VIDEO BOARD COPPER SIDE F VIDEO BOARD COMPONENT SIDE ...
Page 22: ...22 MAIN BOARD COMPONENT SIDE ...
Page 23: ...23 MAIN BOARD COPPER SIDE ...
Page 24: ...24 TRIGGER BOARD COMPONENT SIDE TRIGGER BOARD COPPER SIDE SPEAKER BOARD COMPONENT SIDE ...
Page 25: ...25 COMPONENT BOARD COMPONENT SIDE COMPONENT BOARD COPPER SIDE ...
Page 26: ...26 HDMI BOARD COPPER SIDE ...
Page 27: ...27 HDMI BOARD COMPONENT SIDE ...
Page 28: ...28 PSU STD BOARD COMPONENT SIDE CONNECTOR 3 BOARD COMPONENT SIDE ...
Page 69: ...69 ATMEGA48 20 U2007 AT24C16 U2002 ...
Page 72: ...72 DSP D707E0001BRFP250 U1001 PCM1609A U1034 ...
Page 73: ...73 PCM1742KE U1035 M61545 U6002 ...
Page 74: ...74 74HC157D U1033 SST39VF800 U1004 ...
Page 75: ...75 K4S641632K U1003 74HC251D U1005 ...
Page 76: ...76 74HCU04D U1018 U1019 SN74LVC245 U1010 U1022 in DSP U4518 in Component TL5001CD U1011 ...
Page 77: ...77 SN74HCT245 U1009 PCM1802 U1017 ...
Page 78: ...78 TPS3103 U1021 CS8416 U1002 ...
Page 79: ...79 BU9450 U1032 R2S15205FP U6001 ...
Page 80: ...80 HDMI CM1213 8 D4301 4304 in HDMI D2308 in Trigger TMDS U15 U23 ...
Page 81: ...81 COMPONENT ATtiny261 U4520 ...
Page 82: ...82 TVP5146PFP U4507 SAA7128 U4508 ...
Page 83: ...83 74HC4052D U4002 4003 PCA9517 U4513 ...
Page 84: ...84 SN74AHCT244 U4517 MC141585DW U19 ...
Page 85: ...85 Power Amp F AS358 U5302 LM35DT U5303 ...
Page 86: ...86 Trigger 74HC86D U2303 ST232BDR U2301 TPS2011A U2302 ...
Page 87: ...EXPLODED VIEW A ...
Page 88: ...88 EXPLODED VIEW B ...
Page 92: ...Enlarged in detail on the next page 92 ...
Page 95: ...93 SERVICE MANUAL T755 Surround Sound Receiver NAD ELECTRONICS LTD LONDON ...