Schematic Diagram − A Class Section (1/2) - Sony STR-DB798 Service Manual
Fm stereo fm/am receiver
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Also See for STR-DB798:
- Service manual (96 pages) ,
- Operating instructions manual (64 pages) ,
- Easy setup manual (2 pages)
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STR-DB798
6-29. SCHEMATIC DIAGRAM – A CLASS Section (1/2) –
(1/2)
L8
SBL
GNDA
L7
NF
+B
-B
GNDB
BIAS+
(Page 43)
BIAS-
CN2101
12P
C
L1
GND
NF
L2
BIAS-
BIAS+
GND
R
L3
GND
(Page 39)
NF
L4
BIAS-
BIAS+
CN2201
12P
SBL
L8
GND
NF
L7
BIAS-
BIAS+
GND
L
L5
GND
NF
L6
(Page 39)
BIAS-
BIAS+
GND
SHORT
L7
GND
SBL
L8
GND
SB(R)
L10
GND
NF
L9
BIAS-
(Page 39)
BIAS+
CN2301
10P
CN2001
6P
GND
GND
GND
+B
-B
LIMITER
(Page 39)
STR-DB798
C2310
2200p
100V
Q2005
2SA949
BIAS
Q2006
2SC2229
R2015
120
BIAS
Q2004
2SA992
BIAS
D2001
MTZJ5.6B
C2006
C2007
4p
33p 500V
500V
C2008
R2019
C2005
220p
150
330
100V
25V
R2016
18k
Q2001
R2012
2SC5169
100k
PRE DRIVE
R2005
C2004
4.7k
220
R2009
16V
2.2k
Q2003
2SC1740
R2007
R2008
R2006
560
3.3k
1.2k
PRE DRIVE
R2003
C2002
C2001
R2002
C2109
220p
100V
56k
2200p
100V
C2009
2200p 100V
R2119
R2001
150
C2108
R2116
220p
18k
100V
2SA949
Q2106
2SC2229
R2115
120
BIAS
Q2104
2SA992
C2105
330
C2106
D2101
C2107
R2111
25V
4p
MTZJ5.6B
33p 500V
100k
C2208
500V
R2216
220p
18k
100V
R2112
100k
Q2101
R2219
R2109
2SC5169
150
2.2k
PRE DRIVE
3
C2209
C2104
R2105
2200p
220
4.7k
100V
16V
R2108
Q2103
C2309
3.3k
2SC1740
2200p
R2107
100V
560
PRE DRIVE
R2106
1.2k
R2316
R2319
R2102
C2101
18k
150
56k
220p 100V
C2308
220p
100V
R2014
120
Q2205
2SA949
R2013
Q2206
BIAS
470
2SC2229
R2215
120
BIAS
Q2204
2SA992
BIAS
D2201
MTZJ5.6B
C2206
R2011
R2211
C2207
4p
100k
100k
33p 500V
500V
C2205
330
25V
Q2201
1
R2212
2SC5169
100k
PRE DRIVE
2
3
3
R2205
4
4.7k
C2204
R2209
R2004
220
2.2k
C2011
1.2k
16V
100p
100V
5
Q2203
2SC1740
R2207
R2208
560
3.3k
PRE DRIVE
330
R2206
1.2k
47
C2010
63V
2200p
C2201
R2202
100V
220p
56k
100V
1k
Q2105
Q2305
2SA949
R2114
BIAS
120
BIAS
Q2306
2SC2229
R2315
120
BIAS
R2113
470
C2305
Q2304
330
2SA992
25V
BIAS
BIAS
C2306
R2312
C2307
R2311
4p
100k
33p 500V
100k
500V
Q2301
1
C2304
R2309
2SC5169
220
2.2k
16V
PRE DRIVE
2
3
R2305
4
4.7k
R2308
R2104
3.3k
C2111
1.2k
5
100p 100V
Q2303
2SC1740
R2307
560
PRE DRIVE
R2110
R2103
56k
R2306
330
1.2k
C2102
R2302
C2301
47
56k
220p 100V
63V
R2101
1k
C2606
22
100V
C2605
D2603
22
1SS133
100V
Q2601
2SD2396
LIMITER
SWITCH
R2603
1
R2605
R2601
470
4.7k
1W
42
42
C2410
2200p
100V
C2409
R2419
C2408
2200p 100V
150
220p
100V
R2214
120
R2416
18k
Q2405
2SA949
R2213
Q2406
BIAS
470
2SC2229
R2415
120
BIAS
Q2404
2SA992
BIAS
D2401
MTZJ5.6B
C2406
C2407
4p
33p 500V
500V
C2405
330
R2411
25V
100k
Q2401
2SC5169
1
R2412
PRE DRIVE
100k
3
2
R2405
4
4.7k
C2404
R2409
R2204
220
2.2k
C2211
1.2k
16V
5
100p
100V
Q2403
2SC1740
R2408
3.3k
PRE DRIVE
R2203
R2407
R2406
R2402
330
560
1.2k
56k
C2202
C2401
47
220p 100V
63V
R2201
1k
Q2506
2SC2229
R2314
R2515
120
120
BIAS
Q2505
2SA949
R2313
D2501
BIAS
470
MTZJ5.6B
C2505
Q2504
330
2SA992
25V
BIAS
C2506
R2512
R2511
C2507
4p
100k
100k
33p 500V
500V
Q2501
1
C2504
R2509
2SC5169
220
2.2k
16V
PRE DRIVE
2
3
R2505
4
4.7k
R2304
C2311
1.2k
5
100p 100V
Q2503
2SC1740
R2508
3.3k
PRE DRIVE
R2502
56k
R2303
R2507
R2506
330
560
1.2k
C2501
220p 100V
C2302
47
63V
R2301
1k
C2509
2200p
100V
R2610
10k
D2604
1SS133
D2601
MTZJ15C
Q2602
Q2603
C2603
2SB1565
2SC1841
4.7
LIMITER
100V
LIMITER SWITCH
SWITCH
R2607
150k
R2606
470
C2601
R2602
C2602
47
4.7k
47
R2604
100V
1/2W
100V
CN2401
12P
BIAS+
BIAS-
R2414
C2508
M1
NF
120
220p
100V
GND
R2519
M2
SR
150
R2413
GND
470
BIAS+
BIAS-
M3
NF
(Page 39)
GND
M4
SL
GND
1
2
4
R2404
C2411
1.2k
5
100p 100V
R2403
330
C2402
47
63V
R2401
1k
R2514
120
R2513
470
1
2
4
R2504
C2511
1.2k
5
100p 100V
C2510
R2503
R2510
2200p
330
56k
100V
C2502
47
63V
R2501
1k
1
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