P202A
P201A
DESIGNED BY:HANSONG M25 TEAM
2005/08/08
VM 1.0
F201&F202 ARE T1.6AL/250V
F203&F204 ARE T1.6AL/250V
C210
F203
BR202
b
HS214
HS205
e
be
NAD M25 THX SEVEN CHANNEL AMPLIFIER
Q208
Q207
R296
C274
R2A2
R2A3
D215
HS206
D224
R2F3
G2
G1
AC
IN
IS
E
N
DG
ND
6
AC
O
U
T
P207A
+5
V
D
RE
L
A
Y
BR208
~
1
-
~
+
C255
C227
C228
C265
R215
IC206
C266
R2E9
R213
R214
C262
R216 C230
b
D201
e
Q234
R212
Q205
R251
R252 C258
Q228
R253
b
C263 R2F5
Q227
b
R2F4
D230
R2F6
e
R254
e
R2F2
D231 D223
R2F1
IC
2
0
5
C219
C220
C216 R208 R206 R204 R202
b
Q204
C218
C217
C215
HS204
R207 R205
e
Q202
R203 R201 e
b
Q203
Q209
D233
C276 R2H4
D235
R219
R2H2
C231
R220 C236
C277
D234
C238
R2H3
D236
C239
C237
C232
C234 R225
R250
C233
R223
R224
R222
D203
R218 Q240
R221
R217
C229
D202
D232
D205
R227
C226
D204
b
C235
R226
e
Q241
b
R211
Q206
Q235
e
UTILISER UN FUSIBLE DE RECHANGE DE MEME TYPE
REPLACE ONLY WITH SAME TYPE FUSE AND RATING
FOR CONTINUED PROTECTION AGAINST RISK OF FIRE
ATTENTION:
The two links should be shorted
BUS202
and should be resumed after
during the test for 8ohms load
C261
R275
C206
HS213
Q220
C207
IC202
IC201
Q219
HS212
D208
R278
C269
R267
R2A9
R279
W
201
D211
R283
W
202
HS202
D209
C270
BUS205
C209
C208
CAUTION:
C275
D214 D213
D222
HS201
HS203
Q201
BUS204
BUS206
BUS201
C205
C204
-
~
+
~
BR201
C201
C203
C202
AC
O
F
F
P203A
J202
J203
the test.
AG
N
D
1
FA
N
1
FA
N
2
FA
N
3
-7
0
V
+
70V
+
18V
-1
8
V
DG
ND
R2H1
R259
R299
SE
N
1
SE
N
2
SE
N
7
SE
N
6
SE
N
3
SE
N
4
NC
SE
N
5
P205B
IS
C
T
R
IG_
1
IS
C
T
R
IG_
2
IS
C
T
R
IG_
3
IS
C
T
R
IG_
6
IS
C
T
R
IG_
4
IS
C
T
R
IG_
5
DG
ND
IS
C
T
R
IG_
7
Q222
be
R260
Q232
R281
b
R258
e
b
e
Q221
R210
b
R280
e
Q231
R209
R297
be
Q225
R298
Q226
be
b
R294
e
b
R295
Q223
e
Q224
FOR
C
ONTINUED
P
R
O
TECTIO
N
A
GAINST
RISK
OF
FIRE
REPLACE
O
NLY
W
ITH
S
AME
T
YPE
F
USE
A
ND
RATING
UTILISER
UN
F
U
SIBLE
D
E
R
ECHANGE
D
E
M
EME
T
Y
P
E
D207
PROT5
A
T
T
E
NT
IO
N:
CA
UTI
O
N
:
R270
R261
D228
C256
C268
R2A4
D229
IC
2
0
3
DGND
DGND
HS211
P206B
PROT6
PROT7
PROT5
STBYLED
+5VD
R282
R276
R263
C257
Q218
R277
D210
D220 C273 R273
C271
C259
R264
R2E6 R2A7 R2A1
D225
D221
R266
R2E1
R274
R265
R2A5
R271
R2A8
C260
C272
R2E8
D216
R2E3 R2E4
R2E7
Q233
D217 D218
D226
R2E5
TL084
C264 R2A6 R268
D219
R287
R2E2
R288
R269
R272
R289
74HC21
R290
IC204
R285
R293
PROT4
PROT4
PROT3
PROT3
PROT2
SCLED
R262
D227
PROT1
+12VD
SC
L
E
D
ST
BY
+8
V
ST
BY
+8
V
PR
O
T
4
PR
O
T
3
PR
O
T
5
PR
O
T
2
PR
O
T
1
PR
O
T
6
PR
O
T
7
P204B
DG
ND
DG
ND
SC
L
E
D
DG
ND
C267
R291
D212
RV201
R292 R284
DG
ND
TP
1
R286
J201
C290
C254
C214
C225
C223
C248
W204
C222
R240
C240
HS207
R238
Q212
R233
R235
C211 C212
C213
C224
Q210
W203
b
e
b
e
C247
R232
Q211
b
R234
e
Q213
R239
b
C245
e
C243
Q236
R236
R237
C2
4
4
BR205
C246
Q237
+
~
-
~
+
~
-
~
BR203
C221
b
BR206
Q214
R242
b
Q216
R247 b
e
C253
R241
R243
e
Q217
R245
Q215
b
e
e
C252
R249
C250
Q239
BR207
R244
R248
BR204
C249
C2
5
1
R246
Q238
P208B
HS209
HS210
C242
R257
BU
S2
0
3
F204
P209B
2005/08/08
F201
F202
R255
R228
R229
HS208
b R230
Q230
e
R
256
R231
b
e
Q229
D206
C241
PCB LAYOUT
PSU BOARD - COMPONENT SIDE
PSU BOARD - SOLDER SIDE
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