Schematic Diagram - Marantz PM7001 series Service Manual

7. SCHEMATIC DIAGRAM

R761 1.8V
220
R767
1.8V 47
1.2V
Q719
2SC3419(Y)
-1.2V
J755
TPF251
1
+47V
1
TPF252
2 2
LOUT+
TPF253 3
3
LOUT-
TPF254
-1.8V -1.2V
4
-47V
TPF255 R769
5
NFB
47
R763
-1.8V
220
R762
1.8V
220
R768
1.8V 47
1.2V
Q720
2SC3419(Y)
-1.2V
J756
TPF257
1
+47V
1
TPF258
2 2
ROUT+
3
TPF259
3
ROUT-
TPF260 -1.8V -1.2V
4
-47V
R770
TPF261
5
NFB
47
R764
-1.8V
220
48.5V
48.5V
Q729
2SC2837
0.6V
48.5V
P-GND
6 5 4 3 2 1
48.5V
TPF267
TPF293
R773 R951
0.6V TPF265
NORMAL:0V
10 1K
TPF263
1
2
TPF264
R775
-0.6V
10 TPF266
0.V
TPF296
6 5 4 3 2 1
-0.6V
Q731
2SA1186
P-GND P-GND
-48.5V
R967
-48.5V
68K
48.5V
48.5V
Q730
2SC2837
0.6V
48.5V
6 5 4 3 2 1
48.5V
TPF272
TPF297
R774 R952
0.6V
TPF270
NORMAL:0V
10 1K
TPF268
1
2
TPF269
R776
-0.6V TPF271
10
0.V
TPF300
6 5 4 3 2 1
0V
Q957
KRC102M
-0.6V
Q732
2SA1186
P-GND P-GND
-48.5V
-48.5V R968
68K TPF273
POWER STAGE PWB
P701
27
TPF277
TPF275
TPF278
FROM MAIN POWER TRANSFORMER
J801
G801
TPF282
1 2 1
AC 36.8V
TPF283
0.47/6.8 2
GND
TPF284
3
AC 36.8V
TPF279
TPF276
TPF280
0V
J757
SPK_L(+) TPF285
4
SPK_L(+)
TPF286 TO SPK TERMINAL PWB
3
SPK_L(-)
J971
TPF287 J757
2
SPK_R(-)
TO POWER STAGE PWB
SPK_R(+)
TPF288
1
SPK_R(+)
P-GND P-GND
TPF281
1
W801
EARTH
NORMAL:25V
0V
TPF289
4
+24VL
TPF290
3
PRT_2 TO MAIN PWB
NORMAL:25V TPF291
2
W951
PRT_1
TPF292
1
TPF274 D_GND
0V W951
5102 0310100060098
SPK TERMINAL PWB J974
TPF309
1
TPF310
2
5
TPF311
3
TPF312
4
J971
SPK_L(+)
4 TPF313
1
TPF303
SPK_L(-)
3
SPK_R(-)
2 TPF302 TPF314
TPF304
2
SPK_R(+)
1
5
TPF315
3
R971
TPF319
330 2W
TPF316
4
J975
8 7 6 5
J973
TPF317
1 2 3 4
R972 TPF318
330 2W TPF320
P971
5103 0310100070028
W901
TO MAIN PWB
J920
28
+
SPK_A(L)
-
+
SPK_B(L)
-
+
SPK_A(R)
-
+
SPK_B(R)
-
1
HP_L
2 TO HEADPHONE PWB
J992
3
HP_R