Service Manuals, User Guides, Schematic Diagrams or docs for : NAD T T-973 T-973
<< Back | HomeMost service manuals and schematics are PDF files, so You will need Adobre Acrobat Reader to view : Acrobat Download Some of the files are DjVu format. Readers and resources available here : DjVu Resources
For the compressed files, most common are zip and rar. Please, extract files with Your favorite compression software ( WinZip, WinRAR ... ) before viewing. If a document has multiple parts, You should download all, before extracting.
Good luck. Repair on Your own risk. Make sure You know what You are doing.
Image preview - the first page of the document
>> Download T-973 documenatation <<
Text preview - extract from the document
T 973
Seven Channel Amplifier
ry
ina
lim
PRELIMINARY SCHEMATICS ISSUE DATE: May 2004
Pre
T 973 WIRING DIAGRAM
ry
ina
lim
Pre
SCHEMATIC DIAGRAM(AMP CONNECTION)
P601B
P601B P602B
P602B
AGND SCLED MOLEX 52207 RIGHT ANGLE/SMT/ZIF/TOP CONTACT STYLE/16PIN 1 DGND
SCLED 1 2 DGND DGND ISCTRIG_7 1 -18V
2
DGND
PROT1
PROT2
PROT3
+8V
3
5
7
9
11
4
6
8
10
12
PROT7
PROT6
PROT5
PROT4
+8V
ry ISCTRIG_6
ISCTRIG_4
ISCTRIG_2
SEN5
SEN4
1
3
5
7
9
2
4
6
8
10
ISCTRIG_5
ISCTRIG_3
ISCTRIG_1
AGND
SEN6
2
3
4
5
6
3
4
5
6
7
+18V
ACOFF
+68V
-68V
FAN3
STBY 13 14 STBY SEN3 11 12 SEN7 7 FAN2
8
15 16 SEN2 13 14 SEN1 8 FAN1
9
15 16 9 AGND
MOLEX 52207 RIGHT ANGLE/SMT/ZIF/TOP CONTACT STYLE/16PIN
MOLEX 52207 RIGHT ANGLE/SMT/ZIF/TOP CONTACT STYLE/16PIN 10
10
P603B
S10B-PH-SM3-TB
P605B P607B P608B P610B
MOLEX 2145/3215 TOP ENTRY/9PIN MOLEX 2145/3215 TOP ENTRY/9PIN P618B MOLEX 2145/3215 TOP ENTRY/9PIN MOLEX 2145/3215 TOP ENTRY/9PIN
1
2
3
4
5
1
2
3
4
5
SCN_4
SCP_4
+18V
-18V
+68V
-68V
1
2
3 4
4
5
1
2
3
5
SCN_4
SCP_4
+18V
-18V
+68V
-68V
ina 1
2
3
4
5
1
2
3
4
5
SCN_4
SCP_4
+18V
-18V
+68V
-68V
1
2
3 4
4
5
1
2
3
5
SCN_4
SCP_4
+18V
-18V
+68V
-68V
1
2
3
4
5
STBY
+8V
DGND
SCLED
SCN_3
SCN_4
1
2
3 4
4
5
1
2
3
5
SCN_3
SCP_3
+18V
-18V
+68V
-68V
1
2
3 4
4
5
1
2
3
5
SCN_3
SCP_3
+18V
-18V
+68V
-68V
1
2
3 4
4
5
1
2
3
5
SCN_3
SCP_3
+18V
-18V
+68V
-68V
6 6 6 6 6 6 6
6 PROT1 6 7 PROT2 6 PROT3 6 7 PROT4 6 SCP_3 6 7 PROT5 6 7 PROT6 6 7 PROT7
7 7
7 SEN1 7 8 SEN2 7 SEN3 7 8 SEN4 7 SCP_4 7 SEN5 7 SEN6 7 8 SEN7
8 8 8 8
8 ACOFF 8 9 ACOFF 8 ACOFF 8 9 ACOFF 8 +62V_3 8 ACOFF 8 9 ACOFF 8 9 ACOFF
9 9 9
9 9 9 9 9 -62V_3 9 9 9
10 +62V_4
P604B
P604B P606B
P606B P609B
P609B
11 -62V_4
MOLEX 2145/3215 TOP ENTRY/9PIN MOLEX 2145/3215 TOP ENTRY/9PIN MOLEX 2145/3215 TOP ENTRY/9PIN
12
MOLEX 51021/12PIN/500mm WIRE
MOLEX 51021/12PIN/500mm WIRE
BUS601 BUS602
BUS602 BUS603 BUS604 BUS605 BUS606
COPPER STRIP COPPER STRIP COPPER STRIP COPPER STRIP COPPER STRIP COPPER STRIP
lim
+62V_4A
+62V_4B
+62V_3A
+62V_3B
AGND4A
AGND4B
AGND6A
AGND6B
-62V_4A
-62V_4B
-62V_3A
-62V_3B
+62V_4
+62V_3
AGND4
AGND6
-62V_4
-62V_3
P612B P614B P620B P616B
MOLEX 2145/3215 TOP ENTRY/9PIN MOLEX 2145/3215 TOP ENTRY/9PIN MOLEX 5145-NCH TOP ENTRY/8PIN MOLEX 2145/3215 TOP ENTRY/9PIN
1 1 1 1 1 +62V_4 1 +62V_3 1 1 1
1 +62V_4A 1 +62V_4B 1 +62V_4 1 +62V_4 1 +62V_4 1 +62V_3 1 +62V_3 1 +62V_3A 1 +62V_3B
2 2 2 2 2 2 2 2 2
2 +62V_4A 2 +62V_4B 2 +62V_4 2 +62V_4 2 -62V_4 2 -62V_3 2 +62V_3 2 +62V_3A 2 +62V_3B
3 3 3 3 3 3 3 3 3
3 -62V_4A 3 -62V_4B 3 -62V_4 3 4 -62V_4 3 4 -62V_4 3 4 -62V_3 3 4 -62V_3 3 4 -62V_3A 3 4 -62V_3B
4 4 4
4 -62V_4A 4 -62V_4B 4 -62V_4 4 -62V_4 4 AGND4 4 AGND6 4 -62V_3 4 -62V_3A 4 -62V_3B
5 5 5 5 5 5 5 5 5
5 AGND4A 5 AGND4B 5 AGND4 5 AGND4 5 AGND4 5 AGND6 5 AGND6 5 AGND6A 5 AGND6B
6 6 6 6 6 6 6 6 6
6 AGND4A 6 AGND4B 6 AGND4 6 7 AGND4 6 7 AGND4 6 7 AGND6 6 7 AGND6 6 7 AGND6A 6 7 AGND6B
7 7 7
7 AGND4A 7 AGND4B 7 AGND4 7 AGND4 7 AGND4 7 AGND6 7 AGND6 7 AGND6A 7 8 AGND6B
8 8 8 8 8 8 8 8
8 ISCTRIG_1 8 ISCTRIG_2 8 ISCTRIG_3 8 ISCTRIG_4 8 8 8 ISCTRIG_5 8 ISCTRIG_6 8 9 ISCTRIG_7
9 9 9 9 9 9
9 9 9 9 9 9 9
P619B
P619B
P611B P613B MOLEX 5145-NCH TOP ENTRY/8PIN P615B P617B
MOLEX 2145/3215 TOP ENTRY/9PIN MOLEX 2145/3215 TOP ENTRY/9PIN MOLEX 2145/3215 TOP ENTRY/9PIN MOLEX 2145/3215 TOP ENTRY/9PIN
Pre
P621B P622 P623
HEADER 2
HEADER 2 HEADER 2
HEADER 2 HEADER 2
HEADER 2
1
2
1
2
1
2
1
2
1
2
1
2
DGND
DGND
DGND
FAN1
FAN2
FAN3
SCHEMATIC DIAGRAM (AMP POWER SUPPLY)
F201
T1AL/250V BR201 1 3 +12VD
I O
DB104
~ IC201 LM7812
G
10n /100V
+
C201
- + C204
2
10n /100V C206 C208 +18V
+ 100n /100V 10u /50V +18V
Q205
F203 ~ C202
470u /50V
R213 KSC2690AYS +68V
+68V
10 /1/2W FP
T1.25AL/250V + + R214
1K
1
C203 C205 C207 C209 + HS201 HS203 HS205 HS211 HS213
470u /50V 10n /100V 100n /100V 10u /50V C228 C231 R220 70-010003-0 70-010003-0
D201 70-010003-0 70-010003-0 70-010003-0
+
G
1N4148 10u /100V 10K /1%
2 3 -12VD
I O 100u /25V
IC202 LM7912 R215
Q201 C221 R212 1K C230
KSA1220AYS
100 47p /1KV
1000u /80V
+ R216 R219
10n /250V
10n /250V
C224
P209B +
100n /100V
Q203 Q207
C222
R201 2SC1815 1K 220 C238
1 2SC1775
C236
1 10u /100V
2 1K FOR Q201 FOR Q205 FOR Q218 FOR Q220
2 3 R211 R217 Q208 FOR IC201
3 +12VD 2SC1775 R221
4 220
4 BR203 470 2K /1%
5 ~
5 R207 DB104
R205 1.5K D202 D203◦ Jabse Service Manual Search 2024 ◦ Jabse Pravopis ◦ onTap.bg ◦ Other service manual resources online : Fixya ◦ eServiceinfo