Page 1
SECTION 6
DIAGRAMS
6-1. BLOCK DIAGRAM – TUNER/VIDEO Section –
TUNER-L
B
ANTENNA
(Page 15)
COAXIAL
FM 75
A
(Page 17)
AM
DATA,
CLK
DATA
CLK
TUNER
ST-DO
TUNED
STEREO
MUTE
8L CH
10R CH
15RDS-DATA
14RDS-INT
13FM SIG OUT
2
CE
4
6
7
11
R-CH
FM
AM
(AEP, UK)
ST-DI
3
CLK
1
SYSTEM CONTROLLER
47 RDS.DATA
61
RDS_CLK
RDS_SIGNAL
135
65 TUNER DO
66 TUNER LATCH
49 TUNER TUNED
48 TUNER ST
50 TUNER MUTE
IC1703 (1/6)
STR-DB798
INPUT SELECT
12
10
13
15
5
3
CH1IN2
CH2IN3
CH2IN2
CH3IN3
CH3IN2
IC1304
SW1
2
J301 (2/2)
24CH1OUTCH1IN3
22CH2OUT
20CH3OUT
SW2
PS
4
23
Y
PB/C
/B-Y
PR/C
/R-Y
OUT
COMPONENT
VIDEO
ASSIGNABLE
B
MONITOR
R
J301 (1/2)
Y
PB/C
PR/C
PB/C
/B-Y
PR/C
/R-Y
/B-Y
/R-Y
B
R
Y
B
R
TV/SAT
IN
COMPONENT
VIDEO
99UP CON SDA
100UP CON SCL
40C.PSAVE
39CSW1
34CSW2
114VIDEO_SW1
115VIDEO_SW2
116VIDEO_SW3
117VIDEO_SW4
SDA
SCL
C.PSAVE
CSW1
CSW2
SW1
SW2
SW3
SW4
ASSIGNABLE
DVD IN
• R-CH is omitted due to same as L-CH.
• SIGNAL PATH
: TUNER
: VIDEO
VIDEO
VIDEO
VIDEO 3
INPUT
VIDEO
TV/SAT VIDEO IN
DVD VIDEO IN
VIDEO VIDEO 2 OUT
VIDEO 2 VIDEO IN
VIDEO 1 VIDEO OUT
VIDEO 1 VIDEO IN
J1092
VIDEO 3
INPUT
S-VIDEO
J850 (2/2)
TV/SAT
S-VIDEO IN
J850 (1/2)
DVD
S-VIDEO IN
J852 (1/2)
VIDEO 1
S-VIDEO IN
J853 (1/2)
VIDEO 2
S-VIDEO IN
J1091 (1/2)
Y
C
Y
C
Y
C
Y
C
Y
C
J305
J304
VIDEO SELECTOR
IC301
V3
7
TV
3
LD
5
V2. OUT
11
V2. IN
9
V1. OUT
15
V1. IN
13
Y SWITCH
7
V3
9
V2. IN
3
TV
5
LD
13
V1. IN
C SWITCH
7
V3
9
V2. IN
3
TV
5
LD
13
V1. IN
IC851
IC850
SW4
SW3
SW2
SW1
M. OUT
SW5
SW2
SW3
SW1
SW4
V1.OUT
V2.OUT
M.OUT
SW5
SW2
SW3
SW1
SW4
V1.OUT
V2.OUT
M.OUT
SW5
CSW1
CSW2
C.PSAVE
SCL
VIDEO SYNC
7
SEPARATOR
X371
SDA
15 16
IC370
19
RELAY
DRIVE
Q850, 851
-2
-1
27
25
RY850
C SYNC BUFFER
Q373
Y SYNC BUFFER
Q371
VIDEO
AMP
IC372
Y
C
Y
C
Y
C
J302
VIDEO
MONITOR
VIDEO OUT
J853 (2/2)
VIDEO 2
S-VIDEO OUT
J852 (2/2)
VIDEO 1
S-VIDEO OUT
J851
MONITOR
S-VIDEO OUT
VIDEO
SW4
SW1
SW2
SW3
6
4
10
14
1
D301
2
D302
10
4
14
6
15
11
1
2
D851
10
4
14
6
15
11
1
2
D850
VIDEO
BUFFER
Q372
CLOCK
GENERATOR
IC371
CHROMA IN
1
16
COMPOSITE IN
OUT
X' TAL
4
SYNC SEPARATOR
FSC
7
3.5795MHz (Taiwan)
4.43MHz (AEP, UK)
IC852
STR-DB798
1313
Page 2
STR-DB798
6-2. BLOCK DIAGRAM – AUDIO DSP Section –
S-RAM
IC1202
D0 – D15 A0 – A15
7 – 10, 13 – 16,
29 – 32, 35 – 38
5 – 1, 44 – 42,
27 – 24, 21 – 18
BCKO,
LRCKO
CS
WE
617
BCKO
BCKO
F
(Page 15)
VIDEO
DIGITAL
VIDEO 2 AUDIO OUT
VIDEO 1 AUDIO OUT
(Page 17)
(Page 15)
VIDEO 3
INPUT
DIGITAL
OPTICAL
OPTICAL
DVD IN
OPTICAL
TV/SAT IN
OPTICAL
MD IN
COAXIAL IN
DVD
COAXIAL IN
SA-CD/CD
OPTICAL
MD OUT
TV/SAT AUDIO IN
DVD AUDIO IN
VIDEO 2 AUDIO IN
VIDEO 1 AUDIO IN
VIDEO 3
INPUT
AUDIO
DATA, CLK, LAT
C
SOURCE-L
D
DIGITAL OPTICAL
RECEIVER
DIGITAL OPTICAL
RECEIVER
DIGITAL OPTICAL
RECEIVER
DIGITAL OPTICAL
RECEIVER
J1101
DIGITAL OPTICAL
TRANSCEIVER
IC1081
IC1104
IC1105
IC1106
IC1107
J201
L
L
L
J202
L
L
L
L
J1091 (2/2)
IC1102
IC1151
AUDIO SELECTOR
IC201
2
3
4
5
7
8
10
CONTROL
1415 16
CLK
LAT
DATA
DIGITAL SELECTOR
IC1103
3 7
4
5
6
AB
14 2
B
A
A/D CONVERTER
IC1401
LOCK
XMODE
48
DOUT
BCK
SERIAL I/O
INTERFACE
LRCK
SYSCLK
DATAO
ERROR
BCK
LRCK
CKOUT
XSTATE
XMCK
XOUT
XIN
AUDIO
X1101
12.288MHz
18 SDI1
17 BCKI1
29 BCKI2
15 LRCKI1
28 LRCKI2
59 EXLOCK
30 SDI2
D1101
15
14
13
16
16
34
14
15
13
17
20
21
22
24
12
BUFFER
IC1402
DIN0
3
DIN1
4
DIN2
5
DOUT
2
47
LIN
1
CONVERTER
SIGNAL-END
DEFERENTIAL
CLOCK/
TIMING CONTROL RESET
/POWER CONTROL
DIGITAL AUDIO INTERFACE RECEIVER
INPUT
CIRCUIT
CKSEK1
IC1101
DATA
DEMODULATOR
TIMING
CLOCK
MICON INTERFACE
DICECLK
36 38 37 35
DO
DIGITAL
MODULATOR
RSTB
6
DETECT
GP8
69
108, 107, 105 – 102,
99, 98, 80 – 77,
D0 – D15
MCLK112MCLK2
KFSIO
9
22
X1201
13.9MHz
75 – 72
A
B
CKSEL1
DI
CLK
CE
DO
XMODE
91 ADC:RST
69 OPT SEL2
70 OPT SEL1
74 CKSEL1
79 DI
75 CLK
76 CE
80 DO
73 XMODE
112, 110, 109,
97 – 92, 82 – 85,
66 – 64
A0 – A15
AUDIO DIGITAL
SIGNAL PROCESSOR
IC1201
HCS34HCLK
HDIN35HDOUT32HACN
36
33
104103
90
89
102
HDIN
HCLK
HDOUT
DSP_HCS
SYSTEM CONTROLLER
DATA071XSTATE
72
SDCLK
GP9
68
113
37
87
88
84
GP12
DSP GP9
DSP_HACN
IC1703 (2/6)
FUNC_MUTE
121
25
4445
CSO
WEO
PM
XRST
2
SIGNAL
SELECTOR
IC1204
86
82
PM1
XRST
EEPROM SDA
EEPROM SCL
DIR ERROR
ANALOG_DIGITAL
D1601
67
58X057
16.5MHz
6
1
85
LRCK SW
X1601
23SDO1
24SDO2
25SDO3
26SDO4
20BCKO
19LRCKO
67GP10
BST
56
5
2
DSP_BST
78AUDY_DATA
81AUDY_CLK
28AUDY_DATA_IN
29AUDY_LATCH
30AUDY_RESET
X1
EEPROM
IC1604
SDA
5112
6111
SCL
MUTING
SWITCH
Q1602
MUTING
SWITCH
Q1601, 1603
SWITCHING
IC1503
CLOCK
BUFFER
IC1950
LIP SYNC ADJUST
IC2010
A0 – 11
47FLFRO
46SLSRO
45CSWO
44DLDRO
100 1 – 5 7 8
90 – 95 97 98
17 – 22
24 – 29
10WE
11CAS
12RAS
13CS
14CLK
15CKE
66 FLFRI
65 SLSRI
64 CSWI
63 DLDRI
60 BCKI
59 LRCKI
68 CLK512
D0 – D15
74 SI
72 SCLK
75 SO
73 XCS
70 XRST
• R-CH is omitted due to same as L-CH.
• SIGNAL PATH
SDO1
SDO2
SDO3
SDO4
DQ0 – 15
2 3 5 6 8 9 11 12 39
40 42 43 45 46 48 49
A0 – 11
19 – 24
27 – 32
15 WE
16 CAS
17 RAS
18 CS
35 CLK
34 CKE
SD-RAM
IC2050
SDO1, SDO2,
SDO3, SDO4
S MUTE
SCLKO
E
(Page 15)
G
(Page 15)
H
(Page 15)
: AUDIO (ANALOG)
CKSEL1
DI
CLKCEDO
XMODE
: AUDIO (DIGITAL)
STR-DB798
1414
Page 3
6-3. BLOCK DIAGRAM – AUDIO CONTROL Section –
J101
FRONT
L
SURR
MULTI CH IN
AUDIO
(Page 13)
B
D
(Page 14)
E
(Page 14)
(Page 14)
F
H
(Page 14)
AUDIO
TUNER-L
SOURCE-L
SDO1,
SDO2,
SDO3,
SDO4
BCKO,
LRCKO
SCLKO
PHONO IN
MD/TAPE IN
MD/TAPE OUT
SA-CD/CD IN
CENTER
SUB WOOFER
SDO1
SDO3
SDO2
SDO4
BCKO
LRCKO
L
J151
L
L
J131
L
L
DATA1
45
DATA2
46
DATA3
47
DATA4
31
BCK
40
LRCK
41
SCKI
38
INTERFACE
SERIAL INPUT
PHONO
EQ AMP
IC131
D/A CONVERTER
IC1501
DIGITAL FILTER
MULT-FUNCTION
X8 OVER SAMPLING
D/A
CONVERTER
LPF
AMP
LPF
AMP
LPF
AMP
LPF
AMP
VOUT1
VOUT2
VOUT3
VOUT4
VOUT5
VOUT6
STR-DB798
AUDIO SELECTOR
IC101
9 5.1FL
12 5.1SL
28 5.1 C
15 5.1SW
2 PHONO
3 MD IN
4 MD OUT
5CD
6 TUNER
7 A/D, V
8 2CH
R-CH
R-CH
BUFFER
IC1521
BUFFER
IC1541 (1/2)
BUFFER
IC1541 (2/2)
BUFFER
IC1561
MUTING
Q401
MUTING
Q601
MUTING
Q751
MUTING
Q501
10
D/AFL
26 D/A C
17 D/ASW
13 D/ASL
14
13
12
11
10
9
FLOUT
DATA21CLK23LAT
22
11
24COUT
19SWOUT
14SLOUT
LINE AMP
IC110
LINE AMP
IC111 (2/2)
LINE AMP
IC111 (1/2)
LINE AMP
IC112
BUFFER
+
IC171
VRIN
20
VRIN
9
LEVEL SHIFT
CIRCUIT
CLK17LAT
DATA
13
16
CLK
DATA
VRIN
20
LEVEL SHIFT
CIRCUIT
CLK17LAT
DATA
13
16
AUDIO SELECTOR
26 25
27
23
CONTROL
DATA
OUT
23
TRIM
24
TRIM
25
OUT
6
TRIM
5
TRIM
4
LAT
OUT
23
TRIM
24
TRIM
25
IC173
1415 16
CLK
LAT
BUFFER
IC602 (2/2)
BUFFER
IC602 (1/2)
ELECTRICAL
VOLUME
IC601
BUFFER
IC502
ELECTRICAL
VOLUME
IC501
VRIN
20
22
2117
19
LEVEL SHIFT
CIRCUIT
DATA
16
DATA
CLK17LAT
13
CLK
LAT
OUT
TRIM
TRIM
23
24
25
ELECTRICAL
VOLUME
BUFFER
IC402
IC401
FL
J
(Page 16)
C
K
(Page 16)
J803
SUB WOOFER
AUDIO OUT
RY807
• R-CH is omitted due to same as L-CH.
RELAY
DRIVE
Q826
• SIGNAL PATH
: TUNER
: AUDIO (ANALOG)
: AUDIO (DIGITAL)
SL
L
(Page 16)
(Page 14)
G
STR-DB798
S MUTE
MODE CONTROL
INTERFACE
MDI35MC36ML37RST33MDO
34
LPF
AMP
108 DA1DO
93 DA1LAT
92 DAC_RST
95 DAC_MDI
94 DACCLK
CONTROL
VOUT7
VOUT8
MUTING
16
20
R-CH
SYSTEM CONTROLLER
IC1703 (3/6)
Q813
BUFFER
IC1581
6CTR/SW RY
MUTING
Q701
DATA
CLK
LAT
CLK
CIRCUIT
CLK17LAT
13
CLK
LAT
LAT
OUT
TRIM
TRIM
23
24
25
ELECTRICAL
VOLUME
BUFFER
IC652
IC651
SBL
DATA, CLK, LAT
DATA, CLK, LAT
SW
M
(Page 16)
(Page 17)
Q
(Page 17)
P
R
DATA
VRIN
20
LEVEL SHIFT
DATA
16
DATA
(Page 16)
1515
Page 4
STR-DB798
6-4. BLOCK DIAGRAM – AUDIO AMP Section –
J
(Page 15)
K
(Page 15)
R-CH
RY806
RELAY
DRIVE
Q823
FL
PRE DRIVE
Q2201, 2203
BIAS
Q2204, 2205
BIAS
Q2206
RV631
BIAS
BIAS
Q631, 634
BOOSTER
Q602
BOOSTER
Q603
D411
CURRENT
DETECT
Q632, 633
RELAY
DRIVE
Q809
RY449
R-CH
TM699
+
–
–
+
TM449 (1/2)
+
RY444
RELAY
DRIVE
D611
C
PRE DRIVE
Q2001, 2003
BIAS
Q2004, 2005
BIAS
Q2006
RV431
BIAS
BIAS
Q431, 434
BOOSTER
Q402
BOOSTER
Q403
D711
CURRENT
DETECT
Q432, 433
CURRENT
DETECT
Q732, 733
Q808
R-CH
RY649
–
–
+
TM444
+
–
J1086
PHONES
L
FRONT A
R
L
FRONT B
R
CENTER
SPEAKERS
SBL
M
(Page 15)
SL
L
(Page 15)
• R-CH is omitted due to same as L-CH.
• SIGNAL PATH
: AUDIO (ANALOG)
PRE DRIVE
Q2701, 2703
PRE DRIVE
Q2401, 2403
BIAS
Q2704, 2705
BIAS
Q2706
BIAS
Q2404, 2405
BIAS
Q2406
RV731
BIAS
RV531
BIAS
BIAS
Q731, 734
BIAS
Q531, 534
SYSTEM CONTROLLER
IC1703(4/6)
BOOSTER
Q702
BOOSTER
Q703
BOOSTER
Q502
BOOSTER
Q503
LIMITER.IN
HP DETECT
SURR.RY
SP.A.RY
PROTECTOR
H/P RY
SB.RY
+
L
RY699
R-CH
D511
OVER VOLTAGE
+
134
41
5
3
2
4SP B RY
7
118
DETECT
Q822
CURRENT
DETECT
Q532, 533
B+
AF POWER
PROTECTOR
Q802, 803,
Q805
RELAY
DRIVE
Q807
RY549
RELAY
DRIVE
Q811
R-CH
D818
D812D819D816
D820
–
+
–
TM449 (2/2)
+
–
–
+
SURR
BACK
R
L
SURR
R
SW
R
(Page 15)
STR-DB798
1616
Page 5
6-5. BLOCK DIAGRAM – DISPLAY, KEY CONTROL Section –
REMOTE
CONTROL
RECEIVER
IC1051
SYSTEM CONTROLLER
63 SIRCS
IC1703 (5/6)
STR-DB798
17+/–.JOG (4A)
16+/–.JOG (4B)
ROTARY
ENCODER
RV1051
MENU
A
(Page 13)
C
(Page 14)
P
(Page 15)
Q
(Page 15)
DATA, CLK
DATA, CLK, LAT
DATA, CLK, LAT
DATA, CLK, LAT
DATA
CLK
LAT
DATA
CLK
LAT
8
LEVEL SHIFT
3
11
IC804
19+/–.JOG (3A)
18+/–.JOG (3B)
13VOL.JOG (1A)
12VOL.JOG (1B)
11FUNCTION.JOG (2A)
10FUNCTION.JOG (2B)
133
AD2
132
CLK
9
10
2
1
13
12
DATA
8
3
LEVEL SHIFT
11
6
IC805
Q810
9
10
2
1
13
12
5
4
D+5V
21 VOL IC/TUNER DATA
22 VOL IC/TUNER CLK
23 VOL LAT
120 FUNCTION.SW.LAT
AD1
SP SW
S1057
SPEAKERS
20
S1050
I
/ 1
62POWER.ON/OFF
ROTARY
ENCODER
RV1052
ROTARY
ENCODER
RV1060
ROTARY
ENCODER
RV1061
FLUORESCENT INDICATOR TUBE DRIVER
–/+
MASTER
VOLUME
INPUT
SELECTOR
S1051 – 1054,
S1056, 1061,
S1062, 1065
S1041 – 1047
IC1001
1LED1
2LED2
D1031
MULTI CHANNEL DECODING
LED DRIVE
Q1032
DIMMER
CONTROL SWITCH
Q1031
D+5V
STR-DB798
42 – 31
15FL DATA
LEVEL SHIFT
14FL CLK
113FL STB
IC1006
7 DIN
8 CLK
9 STB
GRID1 – GRID12
14 – 29
SEG1 – SEG16
FL1603
FLUORESCENT
INDICATOR
TUBE
1717
Page 6
STR-DB798
6-6. BLOCK DIAGRAM – POWER SUPPLY Section –
MUTING +5V
TUNER +9V
+3.3V
TUNER +3.3V
(AEP, UK)
A+5V
REGULATOR
IC1905
+5V
REGULATOR
Q824
+9V
REGULATOR
IC1902
+5V
REGULATOR
IC1403
+15V
BIAS
B–
BIAS
B+
LIMITER SWITCH
Q2602
LIMITER SWITCH
Q2601, 2603
+15V
REGULATOR
IC955
+24V (RY)
(AEP, Taiwan)
S901
IMPEDANCE
SELECTOR
8Ω
4Ω
-1
B–
RECT
D914
-2
B+
RECT
D903 – 906
T901
MAIN POWER
TRANSFORMER
F1
SYSTEM CONTROLLER
IC1703 (6/6)
–15V
FL –18V
+5V
V+5V
D+3.3V
119LIMITER,OUT
42D.POWER
43V.POWER
55RSTX
8SUB T
60STOP
+3.3V
+2.6V
STBY +3.3V
REGULATOR
IC952
+3.3V
REGULATOR
IC1903
+3.3V/+2.6V
REGULATOR
IC1901
RESET SIGNAL
GENERATOR
IC1602
B+ SWITCH
Q1957, 1958
REGULATOR
IC1904
+3.3V
B+ SWITCH
Q956, 957
D+5V
V–5V
– 15V
REGULATOR
IC954
–18V
REGULATOR
Q903
+5V
REGULATOR
IC1953
–5V
REGULATOR
IC951
D909
D1908
B– SWITCH
Q953 – 955
B+ SWITCH
Q52, 53
FLUORESCENT
INDICATOR TUBE
(FL1603)
RECT
D912, 913,
915, 916
RECT
D908
RECT
D54 – 57
RECT
D58
AC POWER
DETECT
Q54
D52
D53
F1
F2
F904
F903
T2
SUB POWER
TRANSFORMER
J50
-AC IN
RY1
RELAY
DRIVE
Q51
STR-DB798
1PW RY
1818
Page 7
STR-DB798
6-9. SCHEMATIC DIAGRAM – DIGITAL BOARD (1/4) –
(1/4)
DIGITAL
COAXIAL IN
DVD
COAXIAL IN
SA-CD/CD
OPTICAL
DVD IN
OPTICAL
TV/SAT IN
OPTICAL
MD IN
OPTICAL
MD OUT
(CHASSIS)
J1101
IC1104
TORX147L
IC1105
TORX147L
IC1106
TORX147L
IC1107
TOTX141L
R1116
R1156
75
75
DIGITAL OPTICAL
RECEIVER
DIGITAL OPTICAL
RECEIVER
DIGITAL OPTICAL
RECEIVER
DIGITAL OPTICAL
TRANSCEIVER
C1151
R1151
22
50V
470
R1120
C1120
R1121
C1121
R1123
C1122
C1123
R1122
100
0.1
100
0.1
100
0.1
0.1
100
C1124
0.1
C1119
22 50V
C1152
R1127
100
R1117
470
C1114
1p
GND
0.1
GND
• See page 52 for Waveforms. • See page 53 for IC Block Diagrams. • See page 61 for IC Pin Function Description.
A
XMODE
FB1104
R1112
CKSEL1
DIGITAL AUDIO
INTERFACE RECEIVER
IC1101
LC89056W-E
5
0
1
1
B
F
0
22
BCKI
LRCKI
R1437
100
0
8
6
4
1
1
1
FB1407
R
C1126
10
50V
DIGITAL SELECTOR
IC1103
TC74ACT153AF
B
C1116
R1118
470k
9
1
k
1
7
1
4
R
VCC
R1109
R1152
470k
R1153C1153
47k1p
VCC
R1154
C1117
1000
6.3V
TC7WU04F
0
TC7WU04F
0
BUFFER
IC1102
BUFFER
IC1151
C1115
C1154
0.1
47p
47p
FB1503
R1508
R1106 R1105
33k 4.7k
C1104
0.01
D1001
1SS352-TPH
100
SCKI
C1127
0.1
C1107
C1113
0.1
C1111
0.1
C1102
47
25V
C1103
0.1
C1106
0.1
0.01
R1107
5.6k
R1104C1101
1000.1
C1108
0.1
C1105
47
25V
FB1101
SWITCHING
TC7SH08FU
JR1005
IC1503
C1112 R1115
0.01 10k
0
R1507
100
CLK
12.288MHz
XMCK
CE
C1129
0.001
R1100 C1110
1M 18p
X1101
C1109
FB1501
C1505
0.1
FB1102
R1101
10k
R1110
C1134C1133
R1113
D1101
1SS352-TPH3
R1102
10k
R1108
100
R1111
1k
1k
47 25V0.1
C1131R1124
100p100
18p
1k
XSTATE
D I
DO
DATA0
GP8
DATA
LRCKI2
BCKI2
KFSIO
X1
X2
X3
X4
X5
X6
Z1
Z2
Z3
Z4
(Page 25)
(Page 23)
STR-DB798
1
Y
2
Y
3
Y
(Page 24)
2222
Page 8
STR-DB798
6-10. SCHEMATIC DIAGRAM – DIGITAL BOARD (2/4) –
(2/4)
Z1
Z2
Z3
(Page 22)
(Page 27)
Z4
CNS551
30P
BCK
LRCK
DIR DATAO
D01
D03
D02
D04
LRCKO
BCKO
D/A MCK
T/A-SO
T/A-XCS
T/A-XRST
GND
GND
GND
DSP SD01
DSP SD02
DSP SD03
DSP SD04
COM-DATA
COM-CLK
GND
GND
+3.3V
+3.3V
+3.3V
+3.3V
GND
GND
FB1509
COM_DATA
COM_CLK
D/A_MCK
XCS
XRST
SDO1
SDO2
SDO3
SDO4
DATA1
DATA2
DATA3
DATA4
LRCKO
SO
BCKO
C1231
C1212
C1205
C1203
C1204
C1230
C1211
C1206
C1207
C1209
R1203
C1210
0.1
470
10V
0.1
0.1
A1
A0
0.1
A8
A5
0.1
A6
A7
D15
1000
10V
0.1
0.1
0.1
C1216
100p
10k
0.1
R1222
D14
R1221
D13
R1220
D12
R1219
D11
R1218
D10
R1217
D9
R1216
D8
R1215
R1214
A9
R1213
A10
R1212
A11
• See page 52 for Waveforms. • See page 53 for IC Block Diagrams. • See page 61 for IC Pin Function Description.
JR1121
100
D1
D2
D3
D4
D5
D6
D7
A15
A13
A12
A14
220
220
220
220
220
220
220
220
220
220
220
AUDIO DIGITAL SIGNAL PROCESSOR
IC1201
CXD9718BQ
GP8
C1213 C1214
R1204C1218
1k100p
A3
A2
D0
A4
C1202
0.1
WE
CS
C1201
0.1
0.1 0.1
A14
A13
A12
A9
A10
A11
FB1201
FB1202
A4
A3
A2
D1
D2
D3
D4
D5
D6
D7
WE
A15
A1
A0
CS
D0
S-RAM
IC1202
IS61LV6416-15T
V1
V2
(Page 25)
A8
R1224C1220
100100p
D11
D10
D9
D8
SDCLK
HCS
HDOUT
HCLK
HDIN
HACN
D15
D14
D13
D12
A5
A6
A7
V3
FB1210
C1208
0.1
S
X1201
13.9MHz
R1201
10k
R1226
0
C1235C1234
27p27p
FB1203
KFSIO
2
1
W
W
100
100
100
100
1207
1206
R1209
R1208
R
R
SDO3
SDO2
SDO1
SD04
LRCKI2
BCKI2
R1205
JR1201
100
R1202
100
0
DATA
FB1508
D/A_MCK
C1950
0.1
BCKO
SCKI
C1219
0.1
R1210
10k
PM1
XRST
IC1950
TC74VHC08FT
CLOCK BUFFER
C1233
0.1
SIGNAL SELECTOR
IC1204
TC7WH157FU
DSP
LRCKO
(Page 24)
STR-DB798
2323
Page 9
STR-DB798
6-11. SCHEMATIC DIAGRAM – DIGITAL BOARD (3/4) –
TUNER
100
100
R1705
-D
S
D
R
(AEP,UK)
R1401
1k
C1221
R1711
-I
S
D
R
0.1
C1408
470p
C1405
470p
C1402
47 25V
C1401
100
R1710
IG
S
M
F
LRCKI
BCKI
XMCK
0.1
E
T
E
U
T
M
S
0.1
0.1
C1309
C1311
(Page 22)
(3/4)
R1364
0
R1314
0
Y2
Y1
Y3
C1409
47
25V
R1450
100
2.2k
R1402
FB1401
• See page 52 for Waveforms. • See page 53 for IC Block Diagrams.
(Page 23)
W2
IC1905
BA33BC0T
IO
99
G
C1915 C1914
47
+3.3V REGULATOR +9V REGULATOR
16V
DATA4
R1504
10k
C1509
0.1
R1506
100
RST
SCKI
BCKO
LRCKO
DATA1
DATA2
DATA3
FB1502
C1501
SCKI
R1509
100
C1502
330
0.1
10V
R1502
100
R1503
100
R1501
100
0.1
C1310
N
U
T
T
A
L
0.1
C1227
A/D CONVERTER
I
D
T
S
IC1401
PCM1800
O
K
D
L
T
C
S
CN1103
11P (EXCEPT AEP,UK)
15P
(AEP,UK)
COAXIAL
FM 75Ω
C1407
C1406
C1404
C1403
ANTENNA
AM
C1410
0.1
C1416
0.1
4.7 50V
4.7 50V
10 50V
10 50V
C1411
W1
B
T
0.1
S
R
C1916
0.1
(AEP,UK)
IC1902
TA7809
IO
G
47
25V
I
L
C
O
D
D
M
M
M
M
D/A CONVERTER
IC1501
PCM1609
C1913
0.1
U1
(Page 25)
D1502C1514
1SS3670.1
D1501
1SS367
-T3
C1550
220
10V
C1510
0.1
C1511
0.1
C1507
10 50V
U2
(Page 37)
CN1101
20P
SOURCE-L
GND
SOURCE-R
SBL
SBR
SL
SR
SW
C
FRONT-L
GND
FRONT-R
GND
TUNER-L
TUNER-R
+15V
-15V
SUB-T
PW-RY
STOP
SOURCEL
SOURCER
FRONTL
FRONTR
SBL
SBR
PWRY
8.2k
8.2k
8.2k
8.2k
R1570
R1560
R1550
+5V REGULATOR
IC1403
7805
IO
G
C1417
470
16V
IC1402
R1421
33k
SL
SR
SW
C
L
E
C
R
U
O
S
SUBT
STOP
M5218AFP-T
VCC
VEE
BUFFER
C1414 C1415
220p 220p
C1418
0.1
R1432R1422
33k33k
C1592
0.0018
R1431
33k
R1434R1424
100k100k
22k
1.5k
R1592
R1591
180p
C1593
R1593
1k
C1594 C1584 C1574 C1564 C1554 C1544 C1534 C1524
100
25V
R
E
C
R
U
O
S
L
B
S
C1412C1413
0.10.1
VEE
VCC
BUFFER
R1584 R1574 R1564 R1554 R1544 R1534 R1524
R1594
100k 100k 100k 100k 100k 100k 100k
100k
R1581
1.5k
R
B
S
C1572C1582
0.00180.0018
R1571
1.5k
22k
R1582
180p
C1583
R1583 R1573 R1563 R1553
1k 1k 1k 1k
100
25V
22k
R1572
180p
C1573
100
25V
R
S
M5218AFP
VCC
IC1561
VEE
BUFFER
R1540
R1590
R1580
C1562
C1552
0.0018
0.0018
22k
22k
R1552
1.5k
R1551
180p
C1553
100
25V
1.5k
R1561
R1562
180p
C1563
100
25V
L
S
8.2k
8.2k
R1530
R1520
8.2k
8.2k
C1522
0.0018
C1542
C1532
0.0018
IC1541IC1581
M5218AFPM5218AFP
VCC
BUFFER
W
S
22k
1.5k
R1541
R1542
180p
C1543
R1543 R1533 R1523
1k 1k 1k
100
25V
C
R1532
FRONTR
0.0018
22k
IC1521
1.5k
R1531
180p
C1533
100
25V
M5218AFP
VEEVEE
VCC
BUFFER
FRONTL
R1521
C1523
100
25V
22k
1.5k
R1522
180p
STR-DB798
2424
Page 10
STR-DB798
6-12. SCHEMATIC DIAGRAM – DIGITAL BOARD (4/4) –
4
X2
X5
X
(4/4)
CNP352
(Page 33)
(Page 23)
(Page 24)
11P
PS SAVE
SW1
SW2
PNR
RESET
SDA
SCL
V-POWER
+8V
GND
-8V
V1
V2
V3
U1
U2
100
R1025
R1026
R1020
R1019
R1018
PS
100
SW1
100
SW2
100
PNR
100
RESET
V-POWER
C1906
D1905
C1908
D1906
XMODE
CKSEL1
CLK
CE
COM_DATA
DI
DO
COM_CLK
R1631
10k
C1675
0.1
C1676
0.1
S
SDCLK
DSP
XRST
PM1
HCS
HACN
RSTB
RST
ML
MC
MDI
HDOUT
HDIN
HCLK
MDO
C1312
0.1
R1643
R1694
R1644
R1645
R1662
R1646
R1647
R1663
R1630
R1632
R1603
R1606
R1607
100
R1604
100
R1605
100
R1620
1k
R1608
1k
R1611
1k
R1609
100
R1612
0
R1724
0
R1722
100
R1617
100
R1618
100
R1619
1k
R1610
• See page 52 for Waveforms. • See page 61 for IC Pin Function Description.
(Page 22)
1SR154-400 TE-25
+2.6V/+3.3V
REGULATOR
470 16V
1SR154-400 TE-25
470 16V
1SR154-400 TE-25
1k
1k
1k
100
1k
1k
1k
1k
1k
100
1k
1k
1k
R1719
R1718
R1659
R1660
C1672
0.1
10k
R1661
R1670 100
R1671 100
EEPROM
IC1604
BR24C16F-E2
D1907
LAT
STDO
A
B
DATA0
0.1
XSTATE
24
VINVOUT2
1
C16
T
U
O
VC
V
GND
0k
1
1k
01
1654
16
R
R
10k
10k
10k
10k
R1684
C1627
10
50V
3.3k
C1671
0.1
00k
1
1626
R
FLASH1
1k
49
16
R
00k
1
1682
R
FLASH2
1k
1k
648
674
1
1
R
R
1k
1k
81
80
16
16
R
R
0
10
1k
1k
679
678
1639
R
R1
R1
SW2
SW1
RDS-I
POWER
SIRCS
00
1k
1
673
R1
1k
677
R1
SW3
X1601
1658
16.5MHz
R
687
R1
1k
1k
1k
1k
676
690
667
685
1
1
1
1
R
R
R
R
SW4
FUN
LIMT
10k
C1635
0.1
R1666
10k
C1905
MD0
0.1
10k
635
1
1620
C
R
18
SYSTEM CONTROLLER
IC1703
MB91154PFV-G-125E1
C1619
R1720
FLCS
0.1
STE
TUN
MUTE
RESET
MD2
R1636IC1901
C1605
0.1
0.1
10k
PRO
RDS-D
k
100
100
1
5
4
10kSI-3004KWF
166
166
1308
R
R
R
100
9
166
R
C1613
0.022
C1614
0.022
R1627
1k
10k
1623
R1628
R
10k
R1691
10k
AD2
DET
AD1
FMSIG
HP SW
R1304
V-POWER
R1305
100
100
10k
7
3
6
R1657
163
163
165
R
R
R
L
E
.S
B
A
D
R1634C1631
R1697
∗
∗
R1697
0(AEP,UK)
10k
(TW)
0.1
C1632
D1601
ISS352
MUTING
SWITCH
6
X1
X
Q1957
2SB733
Q1957,1958
B+ SWITCH
R1957
680
R1958
10k
C1957
FB1605
Q1958
RT1N141C-T
4700
16V
C1959
0.1
C1100
0.22
POWER
SIRCS
FB1603
SPSW
+
-
MENU+
MENU-
FB1604
HP SW
FLDATA
FLCLK
FLCS
VOL+
VOL-
FUNC+
FUNC-
AD2
AD1
MD2
MD0
RESET
FLASH2
FLASH1
STDI
CLK
FUNC
Q1603
R1717
FUN
SMUTE
SW4
SW3
SW2
SW1
LIMT
PRO
10k
SBRY
SWRY
SURRY
SPBRY
FRRY
HPRY
DET
+5V REGULATOR
IC1953
BA50BC0T
D1908
1SR154-400TE-25
+8V (DAB)
GND (D)
DAB-PWR5
DAB-PWR
CN1106
IO
G
C1958
0.22
CN1110
+8V STBY
-28V(FL)
-8V(V)
+8V(V)
GND(D)
+8V(D)
+8V(DAB)
CN1107
AC 6V
AC 6V
POWER
SP SW
MENU +
MENU -
V3 OPT
OPT GND
OPT GND
HP SW
DISP GND
DISP GND
DISP GND
FL DATA
FL CLK
FUNC+
FUNC-(STBY)
FLASH2
FLASH1
+5V(D)
FUNC-LAT
FUN LAT SW
S-MUTE
V-SW4
V-SW3
V-SW2
V-SW1
LIMITER
PROTECTOR
SW-RY
SUR-RY
SP-B-RY
HP-RY
DETECT
7P
2P
CN1112
AC 6V
CN1105
AC 6V
SIRCS
+3.3V
+3.3V
FL CS
CN1104
RESET
CN1102
SB-RY
FR-RY
(NC)
4P
(Page 49)
(Page 38)
3P
GND
31P
(Page 39)
GND
GND
-/+ +
-/+ -
-28V
(Page 47)
+5V
VOL+
VOL-
AD2
AD1
7P
MD2
MD0
GND
(FOR CHECK)
VDD
20P
GND
DATA
CLK
(Page 37)
3
X
C1617
0.01
DAB-PWR
RESET
SMUTE
10k
0.1
PNR
SW2
C1659 C1658
0.01 0.01
C1609
Q1601,1602
MUTING
SWITCH
CD NC
OUT
0.01
C1608
0.01
11
C16
VSS
VCC
C1603C1634
0.10.1
L1901
0
C1911
0.1
100
R1021
100
R1022
100
R1023
0.01
R1024
0.01
0.01
0.01
10
39
38
16
16
16
C
C
C
C1640
220p
RESET
R1027 100
R1028 100
R1624
10k
R1625
10k
RESET SIGNAL
C1674
0.1
2SC2712-YG
GENERATOR
IC1602
S-80929CNMC-
G8ZT2G
DAB-PWR5
Q1602
R1642
C1612
47k
47k
10k
PS
SW1
(TW)
47k0.1
C1673
0.1
R1655
10k
+3.3V REGULATOR
IC1903
BA33BC0T
IGO
C1910
220
10V
JR1688
+3.3V REGULATOR
IC1904
BA33BC0T
IO
G
C1615
100p
1k
R1615
1k
R1614
1k
R1613
1k
R1696
10k
R1693
10k
R1692
10k
R1651
10k
R1650
100
R1640
100
R1641
10k
R1653
10k
R1652
10k
R1714
10k
R1715
2.2k
R1698
2.2k
R1638
2.2k
R1629
2.2k
R1699
2.2k
R1602
2.2k
R1622
2.2k
R1600
100
C1670 C1601C1626C1602
0.1 0.10.10.1
Q1601 D1602
RT1N141C-T ISS352
STOP
0
C1912
470
16V
XRST
XCS
SO
FUNC
CLK
STDI
SPSW
+
-
MENU+
MENU-
FLDATA
FLCLK
VOL+
VOL-
FUNC+
FUNC-
SUBT
SBRY
SWRY
SURRY
SPBRY
FRRY
HPRY
PWRY
C1909
0.1
B1602
F
C1606
47
25V
FB1601
C1618
0.1
1k
R1683
10k
R1695
10k
R1675
10k
R1702
10k
R1701
10k
R1704
10k
R1703
10k
R1712
10k
R1713
D1604
ISS352
R1716
10k
2SC2712-YG
STR-DB798
2525
Page 11
STR-DB798
6-14. SCHEMATIC DIAGRAM – A/V SYNC BOARD –
SD-RAM
IC2050
MSM56V16160F-8T
D1
D2
D3
D4
D5
D6
D7
WE
CAS
RAS
CS
A11
A10
A0
A1
A2
A3
C2026 C2025 C2024 C2023
0.1 0.1 0.1 0.1
• See page 61 for IC Pin Function Description.
C2004C2002 R2007C2003
0.10.1 10k0.01
R2028
100
R2027
100
R2026
100
R2025
100
R2024
100
R2023
100
R2022
100
R2021
100
R2031
100
C2011
0.1
0.1
C2010
C2021
C2022
0.1
0.1
CLK
CKE
A9
A8
A7
A6
A5
A4
O
S
100
R2032
1
D
I
S
100
R2033
2
D
S
C
X
100
R2034
3
D
K
L
C
S
100
R2035
4
D
100
R2036
5
D
I
I
I
I
100
R2037
6
D
100
R2038
7
D
I
R
FLF
0
R2050
E
W
R
S
L
S
0
R2049
S
A
C
R
W
D
S
L
C
D
LIP SYNC ADJUST
IC2010
CXD9722TQ
0
0
R2048
R2047
S
A
S
C
R
T
S
R
X
FB2003
K
L
C
I
K
K
C
C
B
LR
FB2002
CN2001
100
R2011
100
R2012
100
R2013
100
R2014
0.1
C2007
C2008
0.1
R2056
0
R2055
0
R2054
0
R2053
0
C2009
0.1
0
0
0
0
0
0
0
0
R2046
R2045
R2044
R2043
R2042
R2041
R2051
R2052
E
0
1
1
1
K
A
A
C
3
2
1
0
A
A
A
A
8
9
A
A
C2050
100
16V
FB2001
FLFR0
SLSR0
CSW0
DLDR0
A4
A5
A6
A7
FLFRI
SLSRI
CSWI
DLDRI
SI
SCLK
FLFR0
CSW0
SLSR0
DLDR0
LRCKI
BCKI
SO
XCS
XRST
R2002
R2003
R2006
R2005
R2001
R2004
100
100
100
100
0
1k
30P
DSP SD01
DSP SD02
DSP SD03
DSP SD04
COM-DATA
COM-CLK
DIR DATAO
LRCKO
D/A MCK
T/A-SO
T/A-XCS
T/A-XRST
AD_DO
+3.3V
+3.3V
+3.3V
+3.3V
LRCK
BCKO
GND
GND
GND
GND
GND
BCK
(Page 23)
D01
D03
D02
D04
SDO
STR-DB798
2727
Page 12
STR-DB798
6-16. SCHEMATIC DIAGRAM – VIDEO Section –
E304
C304
2200p
E302
C302
2200p
R301
C309
10 50V
C310
10 50V
C315
0.1
C313
10
50V
C303
10 50V
C306
50V
75
10
C301
47p
R302
75
C305
47p
R304
75
C307
47p
R306
75
R307
75
C308
2200p
E305
VIDEO
MONITOR
VIDEO OUT
VIDEO 1
VIDEO IN
VIDEO 1
VIDEO OUT
VIDEO 2
VIDEO IN
VIDEO 2
VIDEO OUT
DVD
VIDEO IN
TV/SAT
VIDEO IN
(CHASSIS)
(CHASSIS)
(CHASSIS)
J302
1P
J304
3P
J305
3P
• See page 53 for IC Block Diagrams.
JW301
R303
75
R305
75
C311
IC301
NJM-2595D
VIDEO SELECTOR
0.1
1SS133T
1SS133T
V3 GND
TUNER-R
TUNER-L
FUN-LAT
VIDEO-R
VIDEO-L
DATA
CN202
V3 R
V3 L
CN201
-15V
+15V
GND
G2
(CHASSIS)
3P
(Page 31)
10P
CLK
(Page 37)
C215
2200p
R1
R2
J202
CN301
10P
MONITOR OUT
V-MONITOR
VIDEO3
+5V
GND
-5V
V-SW1
V-SW2
V-SW3
V-SW4
D301
D302
(Page 38)
VIDEO
AUDIO IN
VIDEO 1
AUDIO OUT
VIDEO 2 IN
AUDIO IN
VIDEO 2
AUDIO OUT
AUDIO IN
AUDIO IN
VIDEO 1
DVD
TV/SAT
R
L
R
L
R
L
R
L
R
L
R
L
(CHASSIS)
6P
J201
6P
G1
2200p
R256
1k
O1
R206
1k
O2
O5
O7
O9
R255
2.2k
O3
0.01
R205
2.2k
O4
R254
1k
O5
R204
1k
O6
R253
2.2k
O7
R203
2.2k
O8
R252
1k
O9
R202
1k
O10
R251
1k
O11
R201
1k
O12
C201
0.022
C214
C212
0.022
C211
O11
D
R
D
D
2
T
V
BS
/L
EO
/D
VD
2 OU
ID
V
D
V
TV
S
S
L
V
O6
O8
O10
O12
R1
O1
O3
1
T
M
U
EO
CO
ID
1 O
V
V
O2
O4
R5
R6
AT
3
L
M
EO
O
NC
NC
C
ID
V
ND
G
R7
R2
C213
R3
100p
T
A
D
AUDIO
SELECTOR
CLK
IC201
TC9273N-014
R4
R207
33
R208
33
1k
R3
R220
1k
R4
R219
R211
1k
R5
R6
R7
STR-DB798
2929
Page 13
STR-DB798
6-18. SCHEMATIC DIAGRAM – S-VIDEO Section –
IC1081
GP1FM313RZ
EP1086
EP1091
VIDEO 3
INPUT
S-VIDEO
AUDIO
J1092
VIDEO
VIDEO 3
INPUT
DIGITAL
OPTICAL
PHONES
J1086
(CHASSIS)
L
R
(CHASSIS)
J1091
C
Y
3P
• See page 53 for IC Block Diagrams.
C1081
0.1
R1081
100
C1089C1096
0.10.1
R1094
R1096
R1095
75
75
75
DIGITAL OPTICAL RECEIVER
0.1
C1088
C1098
C1097
2200p
2200p
R1093
1k
R1092
1k
VCC(3.3V)
OPT GND
OPT OUT
VIDEO3(C)
VIDEO3(Y)
VIDEO3(V)
V3 GND
H.P SW
CN1091
H.P R
H.P L
V GND
CN1081
10P
GND
V3 L
V3 R
5P
(Page 47)
GNDH.P SW
(Page 38)
(Page 29)
VIDEO
S-VIDEO OUT
VIDEO 1
S-VIDEO IN
VIDEO 1
S-VIDEO OUT
VIDEO2
S-VIDEO IN
VIDEO2
S-VIDEO OUT
S-VIDEO IN
TV/SAT
S-VIDEO IN
J851
MONITOR
DVD
C854
2200p
(CHASSIS)
C850
R862
47p
Y
C
(CHASSIS)
J852
Y
C
Y
C
(CHASSIS)
(CHASSIS)
J853
Y
C
Y
C
J850
Y
C
Y
C
C851
47p
C861
2200p
R858
75
R859 C857
75 0.1
C852
47p
C853
47p
C862
2200p
C868
2200p
R882
75
R883
75
C880
47p
C881
47p
R854
75
R855
75
R856
75
R857
75
75
Q851
SYNC
COMPARATOR
IC852
LA7213
2SA1015
RELAY
DRIVE
Q850
DTC114ESA
RELAY
DRIVE
R867
10K
R866
2.2K
CN854
11P
VIDEO3(C)
VIDEO3(Y)
VIDEO3(V)
MONITOR-OUT
V-MONITOR
VIDEO3
V-SW1
V-SW2
V-SW3
V-SW4
CN851
GND
CN853
GND
+5V
NC
NC
NC
V
Y
C
SW4
SW3
-5V
(Page 33)
GND
+5V
4P
10P
-5V
(Page 38)
D853
1SS133
C890
100 10V
R865
330
C879
1
50V
R864
150K
C864
0.1
C870
10 50V
D852
R863
75
D851 D850
C873C871
47
16V
1SS133 1SS133
IC851
Y SWITCH
C860
10
50V
R860
75
R861
75
C882
10
50V
C883
0.1
NJM-2595D
R884
75
R885
75
C858
10
50V
C855
0.1
C859
10
50V
C856
0.1
C867 C872 C863 C869
47
0.1 0.1 0.1 0.1
16V
NJM-2595D
IC850
C SWITCH
1SS133
RY850
-1
-2
C
C
N
D
YN
C
N
SY
C
VS
V
G
IN
H
C878
C877
1000
0.1
6.3V
STR-DB798
3131
Page 14
STR-DB798
6-20. SCHEMATIC DIAGRAM – COMP-V BOARD –
P
B
/ C
B
/
B-Y
P
R
/ PR /
J301
COMPONENT
VIDEO
ASSIGNABLE
MONITOR
DVD IN
TV/SAT
B-Y
OUT
IN
Y
INPUT SELECT
IC1304
NJM2586M
JW300
C317
C350
47 16V
0.01
C331
0.1
C3804
0.1
C956
C952
47 16V
C328
47 16V
C330
0.1
C3802
0.1
R304
R305
R306
75
R307
75
R308
R309
( )
470
16V
( ) ( )
C3803
C3801
75
100
16V
100
16V
75
75
75
C313
1 50V
+5V REGULATOR
-5V REGULATOR
• See page 52 for Waveforms. • See page 53 for IC Block Diagrams.
( )
( )
( )
( )
Q955
DTC124ESATP
SW2
SW1
Q953-957
B+ SWITCH
PS
R363
1M 22p
R374 C372 C373R375 R377
1M 12p 22p3.9k 820
V-POWER
( )
C954
0.1
( )
Q954
DTA114TSA
R384 C358
3.9k 12p
C369
0.1
C375
22
50V
C374
470
10V
GND
VIN1
VOUT1
VSAG1
VIN2
V+
NC
VOUT2
C376
47
10V
L370
27µH
L371 R376C368
VIDEO AMP
IC372
NJM2268D
C371
R373
820
R385
820
2SC1740TP
C SYNC
BUFFER
1k4.7 50V
2SC1740TP
Y SYNC
BUFFER
R303
R302
R301
C309
C308
C310
C311
C312
IC952
7805
OI
G
G
IC951
79005
75
75
75
( )
( )
( )
( )
( )
1 50V
1 50V
1 50V
1 50V
1 50V
2SB733
( )
IO
R313
1k
( )
( )
( )
( )
( )
( )
( )
( )
( )
Q956
Q953
2SD773
( )
( )
R956
10k
R955
680
( )
( )
R954
1k
R959
10k
( )
Q957
DTC124ESATP
C955
0.22
C953
0.22
( )
( )
CNP3052
11P
C386
100
L377
10V
C388
0.01
L373
100µH100µH
FB353
C390
100
Q373
C367
0.01
L376
100µH
Q371
C366
0.1
C352
0.1
C378
0.1
R359 R358
1k 1k
C382
0.1
C380 R378
0.01 820
C381
C384
0.1
C377
0.1
C353
100
10V
C379
180p
0.01
IC370
TC90A69N
VIDEO SYNC
SEPARATOR
C362
470
10V
10V
C354
0.01
L378
0.01
C356
0.01
C387
0.01
C385
0.01
C357
L372
100µH
C355
0.1
50V
0.1
C389
R367
10k
10V
100
C383
C392 R386
0.1 10k
R392
4.7k
5.6k
Q372
2SC1740TP
VIDEO
BUFFER
C
N
SC R
O
(AEP,UK)
(TW)
3.5795MHz
4.43MHz
C391
47
10V
FSC
VCC 1
∗
X371
(TW)
(AEP,UK)
R368R369
3.3k3.3k
C395
0.01
R387
C393
10k
15p
C394
2.2
50V
∗
X371
1
2
OUT
R379
820
ACC
GND
GND
APC1
ROMA
X'TAL
CH
FILTER
FILTER
ATE
R
ST G
ER
PC2
FILT
OSC C
VCC 2
4FSC
A
R393
12k
R394
12k
COMPOSITE
FILTE
OUT
BUR
MM1093NF
MM1093PFB
R382 C364 C363
1.2k 12p 22p
C365
47
10V
C396
IN
IN
∗
FB354
22µH
33µH
C398
4.7
56p
50V
C397
0.01
CLOCK GENERATOR
IC371
(TW)
(AEP,UK)(CHASSIS)
27µH
∗
L375
(ARP,UK)
(TW)
R365
100
R366
100
L375
R388
390
IC371
∗
C399
R389
3901050V
C360R390C361R391
560p1M390p15k
L374 R383
∗
1.8k
PS
SW1
SW2
V-POWER
PS SAVE-
V-POWER
RESET
SW1-
SW2-
-8V
CN918
CN919
CN3801
PNR
SDA
SCL
+8V
GND
(Page 25)
6P
(Page 43)
(Page 35)
6P
11P
NC
NC
NC
V
Y
C
SW4
SW3
-5V
(Page 31)
GND
+5V
STR-DB798
3333
Page 15
STR-DB798
6-22. SCHEMATIC DIAGRAM – AU-IN BOARD –
C161
0.01
C1
1k
C2
1k
C3
2.2k
C4
2.2k
C5
1k
C6
1k
C7
1k
C8
1k
C9
1k
C10
1k
C11
1k
C12
1k
B0
B1
B2
B3
B4
B5
B6
B7
B8
B9
AUDIO
AUDIO
MULTI CH IN
PHONO IN
MD/TAPE IN
MD/TAPE OUT
SA-CD/CD IN
FRONT
SURR
SUB WOOFER
CENTER
(Page 37)
(CHASSIS)
R
L
R
L
R
L
R
L
(CHASSIS)
R
L
R
L
(CHASSIS)
J151
4P
R156
R155
J131
4P
J101
6P
CN102
20P
SOURSE-L
GND
SOURSE-R
GND
SL
GND
SR
GND
SW
GND
C
GND
FRONT-L
GND
FRONT-R
GND
TUNER-L
GND
TUNER-R
GND
CN132
R154
R153
R152
R151
R101
100p
C101
100p
R102
C102
R103
100p
C103
100p
R104
C104
R105
100p
C105
100p
R106
C106
C107
2200p
• See page 53 for IC Block Diagrams.
C135
2.2
C137
50V
100p
R131
2.2k
C131
100P
R133
100k
C133
R147
220P
100k
C134
R148
220P
100k
R134
C132
100k
100P
R132
2.2k
C136
C138
2.2
100p
50V
C122
0.022
B8 B9
B0
B6 B7
B2 B3
C11 C12
B4 B5
A4
R158
220
IC131(1/2)
M5218AP-22
R135
180
C139
PHONO EQ
220
10V
AMP
C140
220
10V
R136
180
IC101
TC9274N-017
AUDIO SELECTOR
R137
8.2k
IC131(2/2)
M5218AP-22
R141
R139
100k
C143C141
0.0330.0091
C144C142
0.0330.0091
R140R138
100k8.2k
R145
470
C145
2.2
100
50V
R143
100k
R144
100k
R142
100
C146
R146
2.2
470
50V
C121
0.022
A5
R119
1k
A3
R157
220
C123
100p
CN104
6P
(NC)
CN105
FRONT-R
FRONT-L
FUN-LAT
CN103
6P
(Page 33)
20P
SR
GND
SL
GND
GND
SW
GND
C
GND
GND
GND
(Page 37)
NC
DATA
CLK
GND
-15V
+15V
R114 R115R113R112R111R110
47k 47k47k47k47k47k
LINE AMP
LINE AMPLINE AMP
C110 C111 C112 C113
R845
33
C120
0.01
C1C2
C3C4
C5C6
B1
C7C8
C9C10
R840
33
R176
10k
R177
10k
VDD
IC171
M5218AP
BUFFER
C174
0.01
VSS
100
25V
C171
100
50V
R171
10k
R175
10k
R173
4.7k
R174
15k
A5
R178
A3
100
25V
R172
15k
1k
C175
100p
100
25V
AUDIO SELECTOR
IC173
TC9273F-012
L
DAT CLK
VSSVDD
GNDLAT
IC111IC110
M5218APM5218AP
R
A1A2
R183
4.7k
R184
15k
A4
R149R150
220220
100
25V
15k
R182
R181 R186
10k 10k
R185
10k
IC112
M5218AP
C115
100 25V
C114
100
25V
A1
A2
C181
100
25V
BUFFER
VSS
VDD
IC172
M5218AP
R187
10k
A3
A4
A5
STR-DB798
(Page 38)
3535
Page 16
STR-DB798
6-24. SCHEMATIC DIAGRAM – MAIN BOARD (1/3) –
(1/3)
CN402
(Page 24)
(Page 35)
(Page 29)
(Page 25)
(Page 49)
20P
STOP
PW-RY
SUB.T
-15V
+15V
TUNER-R
TUNER-L
GND
F-R
GND
F-L
C
SW
SR
SL
SBR
SBL
SOURCE-R
NC
SOURCE-L
CN404
20P
SOURSE-L
GND
SOURSE-R
GND
SL
GND
SR
GND
SW
GND
C
GND
FRONT-L
GND
FRONT-R
GND
TUNER-L
GND
TUNER-R
GND
CN406
10P
VIDEO-L
GND
VIDEO-R
+15V
-15V
FUN-LAT
CLK
DATA
TUNER-L
TUNER-R
CN403
20P
+5V(D)
GND
DATA
CLK
FUNC-LAT
FUN LAT SW
S-MUTE
V-SW4
V-SW3
V-SW2
V-SW1
LIMITER
PROTECTOR
C/SB-RY
SW-RY
SUR-RY
SP-B-RY
FR-RY
HP-RY
DETECT
SUB.T
PW-RY
STOP
GND(RY)
+24V(RY)
CN414
SBR
SBL
R405
2.2k
SL
SR
SW
C
F-L
F-R
F-LAT
CL
DA
R827
D818
D820
1SS133
D816
1SS133
D812
1SS133
D819
5P
STOP
PW-RY
SUB.T
LEVEL SHIFT
IC804
F-R
F-L
C
SW
SR
SL
1k
FUNC-LAT
FUN LAT SW
SW4
SW3
SW2
SW1
1SS133
1SS133
SUB.T
PW-RY
STOP
CLK
R701 R651 R501 R551 R751 R601 R401 R451
DATA
CLK
PRO
SUR
SP
FR
HP
R820
2.2k
R821
10k
TC74ACT08P
CL
22k 22k 22k 22k 22k 22k 22k 22k
SBL
R838
2.2k
Q811
2SC1740TP
-FEK
RELAY
DRIVE
BR
S
Q651Q701
2SC3623A2SC3623A
Q826
2SC1740TP
-FEK
RELAY
DRIVE
R839
10k
• See page 53 for IC Block Diagrams.
LEVEL SHIFT
CXD9725M
VOLUME
IC805
TC74ACT08P
C
C
C456
100
25V
C468
220
16V
IC401
FUNC-LAT
F-LAT
DATA
DA
SL
SL
MUTING CONTROL
M5218AP
DTA124EASTP
BUFFER
IC402
CLK
FUN LAT SW
Q813
C824 R833
0.1 1M
R782
100k
Q810
DTA124ESATP
INVERTER
R830
1k
R811R455
R815
10k2.2k
10k
W
SR
SR
C753
100
25V
S
SW
R826
1M
R457
1k
C457
220p
C813
R458
2200p
100k
R403
C821
100k
0.01
C402
C812
220p
2200p
ELECTRICAL
R402
C401
1k
100 25V
C818
A3
A2
A1
A
A
R841
33
C817
47
35V
R846
33
R552
1k
ELECTRICAL
VOLUME
IC501
CXD9725M
ELECTRICAL
VOLUME
IC651
CXD9725M
100 25V
C501
C701
C651
R752
FUNC-LAT
AA1
DATA
AA2
AA3
C816
0.1
F-L
C455C405C605C655C555C505C604C705
0.0220.0220.0220.0220.0220.0220.0220.022
F-L
F-R
Q451Q601 Q401Q751Q551Q501
2SC3623A2SC3623A 2SC3623A2SC3623A2SC3623A2SC3623A
MUTINGMUTINGMUTINGMUTINGMUTINGMUTINGMUTINGMUTING
F-R
BUFFER
IC502
M5218AP
BUFFER
IC652
M5218AP
R553
100k
C552
220p
C502
220p
R503
100k
R502
1k
R702
1k
R703
100k
C702
220p
C652
220p
R653
100k
R652
1k
C551
100 25V
100 25V
100 25V
Q824
2SC1815YGR
+5V
REGULATOR
47
25V
C568
220
16V
C518
220
16V
C718
220 16V
C668
220 16V
C768
220
1k
16V
D815
HZS6B2
C519
1000p
C751
100
25V
A
R828
4.7k
C815C814
47
25V
S-R
S-L
R504
1k
R654C669
1k1000p
SSW
C819
22
50V
10
R961
10
R960
22
50V
F-LAT
CL
DA
FNT-L
FNT-R
CC
SSW
S-L
S-R
+15V REGULATOR
C963
1000
25V
C961
1000
25V
-15V REGULATOR
IC955
7815L
OGI
OI
IC954
79015
CN405
20P
+15V
-15V
GND
FUN-LAT
CLK
DATA
NC
GND
FRONT-L
GND
FRONT-R
GND
C
(Page 35)
GND
SW
GND
SL
GND
SR
CN420
3P
+15V
C962
0.22
-15V
C960
0.22
G
(Page 49)
B1
B2
B3
B4
(Page 39)
R753
100k
C752
220p
C602
220p
R603
100k
ELECTRICAL
VOLUME
IC601
CXD9725M
C618
220
16V
C619
100 25V
1000p
R602
1k
C601
CC
R604
1k
B5
B6
B7
B8
C418
220 16V
FNT-R
BUFFER
IC602
M5218AP
FNT-L
R404
1k
C419
1000p
• Semiconductor Location
Ref. No. Location Ref. No. Location Ref. No. Location Ref. No. Location Ref. No. Location Ref. No. Location Ref. No. Location Ref. No. Location Ref. No. Location Ref. No. Location Ref. No. Location Ref. No. Location
D411 D-13
D431 J-15
D461 D-13
D481 J-12
D511 E-13
D531 K-3
D561 E-13
D581 K-2
D611 B-14
STR-DB798
A1
A2
D631 L-8
D661 B-13
D681 L-6
D711 B-14
D731 L-10
D805 I-14
D807 I-14
D808 I-14
D812 F-2
A3
A4
A5
A6
(Page 38)
D814 G-13
D815 I-3
D816 F-2
D817 I-14
D818 F-2
D819 F-2
D820 F-2
D821 B-13
D822 B-13
A9
A7
A8
A10
D823 C-13
IC401 G-11
IC402 G-10
IC501 I-5
IC502 I-4
IC601 I-11
IC602 I-10
IC651 I-8
IC652 I-7
IC804 F-5
IC805 F-4
IC954 E-8
IC955 D-9
Q401 D-5
Q402 O-17
Q403 O-18
Q431 O-17
Q432 M-15
Q433 M-16
Q434 M-17
Q451 E-5
Q452 O-14
Q453 O-15
Q481 O-15
Q482 M-13
Q483 M-13
Q484 M-14
Q501 C-5
Q502 O-5
Q503 O-6
Q531 O-5
Q532 M-4
Q533 M-4
Q534 L-5
3737
Q551 C-5
Q552 B-2
Q553 B-3
Q581 B-3
Q582 K-2
Q583 L-2
Q584 M-3
Q601 D-5
Q602 O-9
Q603 O-11
Q631 O-10
Q632 M-8
Q633 M-9
Q634 M-9
Q651 C-5
Q652 O-7
Q653 O-8
Q681 O-8
Q682 M-6
Q683 M-7
Q684 M-7
Q701 B-7
Q702 O-12
Q703 O-13
Q731 O-12
Q732 M-10
Q733 M-11
Q734 M-12
Q751 D-5
Q802 I-13
Q803 I-14
Q805 I-15
Q807 B-10
Q808 C-11
Q809 C-12
Q810 G-5
Q811 B-17
Q813 H-2
Q822 B-13
Q823 B-10
Q824 I-2
Q826 B-17
Page 17
STR-DB798
6-25. SCHEMATIC DIAGRAM – MAIN BOARD (2/3) –
(2/3)
CN410
8P
(Page 45)
(Page 45)
(Page 35)
(Page 25)
(Page 31)
(Page 49)
(Page 45)
(Page 31)
(Page 29)
GND
FR
GND
FL
GND
SR
GND
SL
CN412
6P
GND
C
GND
SBR
GND
SBL
EB403
CN419
2P
CN417
3P
H.P R
GND
H.P L
CN422
A GND
CN455
CN453
CN425
CN424
B GND
CN413
6P
C/SB-RY
24V(RY)
SW(RY)
GND
SW
CN408
10P
V-SW4
V-SW3
V-SW2
V-SW1
-5V
GND
+5V
VIDEO3
V-MONITOR
MONITER-OUT
CN407
10P
MONITER-OUT
V-MONITOR
VIDEO3
+5V
GND
-5V
V-SW1
V-SW2
V-SW3
V-SW4
GP801
RY806
-2
R825
470
1W
R824
470
1W
SW4
SW3
SW2
SW1
-5V
+5V
V3
VM
MO
MO
VM
V3
+5V
-5V
SW1
SW2
SW3
SW4
-1
1SS133
D814
R849
10
C567
0.1
C517
0.1
0.0470.1
0.0470.1
C617
0.1
0.047
C467
0.1
0.047
C417 C416
0.1 0.047
(Page 37)
CN411
4P
A4
A5
A1
A9
A2
A3
JWH002
JWH003JWH001
R565
47k
R515
R569
C566
10
0.047
R519
C516
10
0.047
R719
C716C717
10
R669
C666C667
10
R619
C616
10
R469
C466
10
R419
10
47k
R665
47k
R615
47k
R465
47k
R415 C413
47k 0.01
A6
A7
A8
A10
R593
R812
SUR
SP
FR
HP
C563
0.01
C513
0.01
C713R715
0.0147k
C663
0.01
C613
0.01
C463
0.01
1SS133
1SS133
1SS133
1SS133
1SS133
1SS133
1SS133
D561
R566
100k
D511
R516
100k
D711
R716
100k
D661
R666
100k
D611
R616
100k
D461
R466
100k
D411
2.2k
R816
R813
2.2k
R817
R814
2.2k
R818
R847
2.2k
R848
R416
100k
Q807
2SC1740TP-FEK
10k
RELAY DRIVE
Q808
10k
10k
10k
PRO
2SC1740TP-FEK
RELAY DRIVE
Q809
2SC1740TP-FEK
RELAY DRIVE
Q823
2SC1740TP-FEK
RELAY DRIVE
R802
C807 R806
1k
22
50V
Q805
2SC1841
D807R807
1SS13310k
D817
1SS133
D822D821
MTZJ22AMTZJ22A
OVER VOLTAGE
Q802,803,805
AC POWER PROTECT
Q822
TC124ESATP
DETECT
22k
D808
1SS133
2SC1740TP-FEK
R850
10k
R805
10k
Q802
D805
1SS133
R851 R853D823
6.8k 22kMTZJ5.6C
C805
220
10V
Q803
2SA1038S
R543
47k
R743
47k
R693
47k
R643
47k
R493
47k
47k
R588
68k
D581
R589
1SS133
15k
R538
68k
R539D531
15k1SS133
R738
68k
D731 R739
1SS133 15k
R688
68k
R689
D681
15k
1SS133
R638
68k
D631 R639
1SS133 15k
R488
68k
D481 R489
1SS133 15k
R443
47k
R438
68k
R439D431
15k1SS133
R852
22k
C822
47
16V
Q582
2SA1038S
CURRENT
DETECT
Q532
2SA1038S
CURRENT
DETECT
Q732
2SA1038S
CURRENT
DETECT
Q682
2SA1038S
CURRENT
DETECT
Q632
2SA1038S
CURRENT
DETECT
Q482
2SA1038S
CURRENT
DETECT
Q432
2SA1038S
CURRENT
DETECT
SR-RY
FB-RY
FA-RY
24V(RY)
C13
C1
C2
C3
Q1
Q2
Q3
Q4
Q5
Q6
Q7
C4
C5
C6
C7
C8
C9
C10
C11
C12
(Page 45)
(Page 39)
STR-DB798
3838
Page 18
6-26. SCHEMATIC DIAGRAM – MAIN BOARD (3/3) –
(3/3)
R632R636
2.2k4.7k
C632
(Page 37)
220p
B1
B2
B3
B4
B7
B6
B5
B8
Q633
2SA1038S
CURRENT
DETECT
R637
1.8k
Q5
Q733
2SA1038S
CURRENT
DETECT
R737
1.8k
Q3
Q483
2SA1038S
CURRENT
DETECT
R487
1.8k
Q6
Q433
2SA1038S
CURRENT
DETECT
R437
1.8k
Q7
R736 R732
4.7k 2.2k
C732
220p
C482
220p
R436 R432
4.7k 2.2k
C432
220p
RV631
220
R631
470
2SC3623A
RV731
220
R731
470
R482R486
2.2k4.7k
2SC3623A
RV481
220
R481
470
2SC3623A
RV431
220
R431
470
Q634
2SA1115
BIAS
BIAS
R635
6.2k
R613
100
Q734
2SA1115
BIAS
Q731
BIAS
R735
6.2k
R713
100
Q484
2SA1115
BIAS
Q481
BIAS
R485
6.2k
R463
100
Q434
2SA1115
BIAS
Q431
BIAS
R435
6.2k
R413
100
STR-DB798
Q602
R612
MN2488
100
BOOSTER
C631
C731
47
25V
C431
47
25V
R614
47
0.22X2
25V
R712
R462
C481
R412
5W
Q603
MP1620
BOOSTER
Q702
MN2488
100
BOOSTER
R714
0.22X2
5W
Q703
MP1620
BOOSTER
Q452
MN2488
100
BOOSTER
47
R464
0.22X2
25V
5W
Q453
MP1620
BOOSTER
Q402
MN2488
100
BOOSTER
R414
0.22X2
5W
Q403
MP1620
BOOSTER
LIMITER
CN632Q631
2P2SC3623A
(FOR ADJUSTMENT)
CN601
12P
GND
BIAS+
BIAS-
NF
GND
L
GND
(Page 42)
BIAS+
BIAS-
NF
GND
SBL
CN732
2P
(FOR ADJUSTMENT)
CN482
2P
(FOR ADJUSTMENT)
CN401
12P
BIAS+
BIAS-
NF
GND
R
GND
BIAS+
BIAS-
NF
(Page 42)
C
CN432
2P
(FOR ADJUSTMENT)
CN421
6P
(Page 42)
GND
GND
GND
+B
-B
Q1
Q2
Q4
R586
4.7k
C582
220p
Q583
2SA1038S
CURRENT
DETECT
R587
1.8k
R536
4.7k
C532
220p
Q533
2SA1038S
CURRENT
DETECT
R537
1.8k
R686
4.7k
C682
220p
Q683
2SA1038S
CURRENT
DETECT
R687 R685
1.8k 6.2k
R562
100
R582
2.2k
RV581
220
2SC3623A
R581
470
R532
2.2k
2SC3623A
RV531
220
R531
470
R682
2.2k
2SC3623A
RV681
220
R681
470
Q584
2SA1115
BIAS
Q581
BIAS
R585
6.2k
R563
100
Q534
2SA1115
BIAS
Q531
BIAS
R535
6.2k
R513
100
2SA1115
Q681
BIAS
R663
100
C531
47
25V
Q684
BIAS
C681
47
25V
Q552
MN2488
BOOSTER
C581
47
R564
0.22X2
25V
R512
R662
5W
Q553
MP1620
BOOSTER
Q502
100
MN2488
BOOSTER
R514
0.22X2
5W
Q503
MP1620
BOOSTER
Q652
MN2488
100
BOOSTER
R664
0.22X2
5W
Q653
MP1620
BOOSTER
CN418
3P
AC 6V
GND
AC 6V
(Page 51)
CNP419
3P
AC 6V
GND
AC 6V
(Page 25)
(FOR ADJUSTMENT)
(Page 42)
(FOR ADJUSTMENT)
(Page 42)
(FOR ADJUSTMENT)
A-CL GND
SHORT
CN582
2P
CN501
12P
BIAS+
BIAS-
NF
GND
SR
GND
BIAS+
BIAS-
NF
GND
SL
GND
CN532
2P
CN651
10P
GND
BIAS+
BIAS-
NF
GND
SBR
SBL
GNDGND
CN682
2P
CN488
6P
(Page 43)
C404
100V
C403
100V
CN415
22
22
3P
+B
GND
-B
(Page 49)
STR-DB798
3
C
3
11
1
C6
C
C
1
2
5
4
C
C
C7
C
C
9
C
C8
10
C
12
C
(Page 38)
3939
Page 19
STR-DB798
6-29. SCHEMATIC DIAGRAM – A CLASS Section (1/2) –
(1/2)
(Page 43)
(Page 39)
(Page 39)
(Page 39)
BIAS+
SBL
GNDA
NF
+B
-B
GNDB
BIAS-
CN2101
12P
C
GND
NF
BIAS-
BIAS+
GND
R
GND
NF
BIAS-
BIAS+
CN2201
12P
SBL
GND
NF
BIAS-
BIAS+
GND
L
GND
NF
BIAS-
BIAS+
GND
SHORT
GND
SBL
GND
SB(R)
GND
NF
BIAS-
BIAS+
CN2301
10P
L8
L7
L1
L2
L3
L4
L8
L7
L5
L6
L7
L8
L10
L9
C2310
2200p
100V
100V
100V
2200p
2200p
C2210
C2110
R2119
150
C2108
R2116
220p
100V
R2216
18k
C2309
2200p
100V
R2319 R2102
R2316
150 56k
18k
C2308
220p
100V
R2014
120
Q2303
2SC1740
22
R2205
Q2205
2SA949
BIAS
Q2204
2SA992
BIAS
C2207C2007
33p 500V33p 500V
Q2201
2SC5169
PRE DRIVEPRE DRIVE
4.7k
R2305R2105
4.7k4.7k
3
R2202C2201
56k220p
100V
Q2305
2SA949
BIAS
Q2304
2SA992
BIAS
100k 33p 500V
Q2301
2SC5169
3
Q2005
2SA949
Q2006
R2015
D2001
MTZJ5.6B
R2019
C2008
220p
100V
C2109
2200p
100V
18k
C2208
220p
100V
R2219
150
C2209
2200p
100V
R2016
150
18k
C2005
R2012
C2004
R2007 R2006
R2115
C2105
R2112
2SC2229
C2104
R2108
3.3k
BIAS
R2009
2.2k
R2008
3.3k
100V
C2009
Q2106
2SC2229
D2101
MTZJ5.6B
R2109
2.2k
220
16V
R2107
560
220p 100V
120
330
25V
100k
220
16V
560 1.2k
120
330
25V
100k
R2002C2001
56k220p
2200p 100V
BIAS
R2106
1.2k
C2101
C2006
4p
500V
PRE DRIVE
2SC1740
PRE DRIVE
C2106
500V
Q2103
2SC1740
BIAS
Q2004
2SA992
BIAS
Q2001
2SC5169
3
R2003
330
C2002
47
63V
R2001
1k
Q2105
2SA949
BIAS
Q2104
2SA992
BIAS
R2111
C2107 C2307 R2311 C2507
100k
33p 500V 33p 500V
Q2101
2SC5169
3
Q2003
4p
R2005
4.7k
R2013
470
R2011
100k
1
2
4
R2004
C2011
1.2k
100p
100V
5
C2010
2200p
100V
1
L
R2114
120
R2113
470
1
2
4
R2104
C2111
100p 100V
1.2k
R2110
56k
5
R2103
330
C2102
47
63V
R2101
1k
3
L
R2215
120
D2201
MTZJ5.6B
C2205
330
25V
R2212
100k
56k
R2010
2
L
R2315
120
C2305
330
25V
R2312
100k
4
L
C2204
R2207
C2304
Q2206
2SC2229
BIAS
C2206
R2211
4p
100k
500V
R2209
220
2.2k
16V
R2208
560
3.3k
2SC2229
D2301
MTZJ5.6B
R2309
2.2k
220
16V
R2308
3.3k
R2307
560
R2302
C2301
56k
220p 100V
Q2306
BIAS
R2206
Q2203
2SC1740
PRE DRIVE
1.2k
C2306
4p
500V
PRE DRIVE
R2306
1.2k
C2606
100V
R2214
120
R2213
470
1
2
4
C2211
5
100p
100V
R2203
330
C2202
47
63V
R2201
1k
5
L
R2314
120
R2313
470
1
2
4
C2311
5
100p 100V
R2303
330
C2302
47
63V
R2301
1k
0
1
L
R2204
R2304
C2410
2200p
100V
C2409
R2419
R2408
C2408
220p 100V
150
R2416
18k
Q2406
2SC2229
BIAS
C2406
4p
500V
R2411
100k
R2409
2.2k
Q2403
2SC1740
3.3k
R2509
PRE DRIVE
R2406R2407
1.2k560
Q2506
2SC2229
BIAS
C2506
R2511
4p
100k
500V
2.2k
R2505
4.7k
Q2503
2SC1740
PRE DRIVE
R2506
1.2k
33p 500V
2SC5169
PRE DRIVEPRE DRIVEPRE DRIVE
C2501
220p 100V
C2509
2200p
100V
C2407
Q2501
R2405
4.7k
Q2401
2SC5169
PRE DRIVE
C2401
220p 100V
Q2405
2SA949
BIAS
Q2505
2SA949
2SA992
R2402
56k
BIAS
Q2504
2SA992
BIAS
3
R2502
56k
Q2404
3
R2414
120
R2413
470
BIAS
1
2
4
R2404
1.2k
C2411
5
100p 100V
R2403
330
C2402
47
63V
R2401
1k
4
M
1
2
4
C2511
5
100p 100V
R2503
330
C2502
47
63V
R2501
1k
2
M
R2514
R2513
3
M
120
470
R2504
1.2k
C2510
R2510
2200p
56k
100V
R2410
C2508
220p
100V
R2519
150
56k
1
M
R2516
M1
18k
M2
M3
M4
2200p 100V
R2415
120
D2401
MTZJ5.6B
C2405
330
25V
R2412
100k
C2404
220
56k
R2210
56k
R2310
R2515
D2501
MTZJ5.6B
C2505
R2512
16V
120
330
25V
100k
C2504
220
16V
R2508
3.3k
R2507
560
1.2k
6
L
1.2k
9
L
CN2401
BIAS+
BIAS-
GND
GND
BIAS+
BIAS-
GND
GND
12P
NF
SR
NF
(Page 39)
SL
(Page 39)
STR-DB798
CN2001
6P
GND
GND
GND
+B
-B
LIMITER
R2610
C2605
R2603
10k
D2603
2SD2396
LIMITER
SWITCH
4.7k
1W
Q2601
1SS133
R2605
D2601
MTZJ15C
C2603
4.7
100V
C2601R2601
470
100V
Q2603
2SC1841
LIMITER SWITCH
R2607
150k
47
C2602
47
100V
22
100V
1
R2606
D2604
1SS133
Q2602
2SB1565
LIMITER
SWITCH
470
R2602
4.7k
1/2W
R2604
1
4242
Page 20
6-30. SCHEMATIC DIAGRAM – A CLASS Section (2/2) –
STR-DB798
(Page 42)
BIAS-
BIAS+
GND
GND
SBL
(2/2)
Q2705
Q2701
2
4
R2703
330
C2702
63V
2SA949
BIAS
R2709
2.2k
C2704
220
16V
C2708
220p
100V
R2719
R2710
56k
150
Q2706Q2704
BIAS
C2707
4p 500V
C2706
4p
500V
1
3
R2705
4.7k
5
C2711
100p 100V
R2702
56k
47
C2701
220p 100V
Q2703
2SC1740
PRE DRIVE
R2706
1.2k
2SC22292SA992
BIAS
C2808 C2807
0.0022
100V
0.0022
100V
R2715
120
D2701
MTZJ5.6B
C2705
330
25V
R2712
100k
R2708
3.3k
R2707
560
R2716
18k
R2714
120
R2713
470
R2711
100k
-B
+B
NF
R2704
1.2k
R2701
2SC5169
PRE DRIVE
1k
CN2005 CN18
4P 4P
CN2004
4P
CN2003
4P
CN28
CN38
EB18
(CHASSIS)
4P
EB28
(CHASSIS)
4P
EB38
(CHASSIS)
STR-DB798
CN168 CN178
6P 6P
(Page 33)
(Page 39)
4343
Page 21
6-32. SCHEMATIC DIAGRAM – SPEAKER Section –
STR-DB798
SPEAKERS
R LSURR
TM449
R LFRONT B
TM699
R LFRONT A
(CHASSIS)
(CHASSIS)
C549
0.01
R548
C599
0.01
C443
0.01
C493
0.01
4700p
4700p
10
R598
10
R443
10
R493
10
C449
R448
10
R498
10
C499
C448
470p
C598
470p
C548
470p
C444
470p
C698
470p
C498
470p
RY549
D549
1SS133
R547
RY444
D444
1SS133
R444
RY449
D449
1SS133
R447
-1
-2
10
-1
-2
10
-1
-2
10
L549
SR-RY
FB-RY
FA-RY
24V(RY)
CN449
GND
GND
GND
GND
CN448
CN447
8P
SL
SR
FL
FR
(Page 38)
4P
(Page 38)
4P
(NC)
R549
10
L599
R599
10
L449
R449
10
L499
R499
10
STR-DB798
SPEAKERS
(CHASSIS)
SURR BACK
R L
CENTER
SUB WOOFER
AUDIO OUT
TM444
(CHASSIS)
(CHASSIS)
(CHASSIS)
2200p
CN451
4P
C748
3900p
C699
0.01
R698
10
R748
C494
100p
C648
100
R809J803
1k1P
C810
10
C749
0.01
C649
0.01
R647
10
R648
RY699
-1
-2
D699
RY807
RY649
1SS133
-1
-2
D649
1SS133
R697
10
10
L699
R699
L749
R749
L649
R649
10
10
10
R829
10
D810
1SS133
CN443
C/SB-RY
24V(RY)
SW(RY)
CN444
6P
(NC)
6P
SBL
GND
SBR
GND
C
GND
GND
(Page 38)
SW
(Page 38)
4545
Page 22
6-34. SCHEMATIC DIAGRAM – DISPLAY Section –
CN1080
5P
VCC(3.3V)
OPT GND
OPT OUT
H.P SW
(Page 31)
H.P SW GND
R1012
1
C1012
SEG2
SEG1
0.1
SEG9
SEG8
SEG7
SEG6
SEG5
SEG4
SEG3
SEG2
SEG1
SEG6
SEG5
SEG4
SEG3
STR-DB798
RV1052RV1051
ROTARY ENCODER
-/+
R1042
S1042 S1041
DISPLAY INPUT MODE
RV1061
ROTARY ENCODER
SELECTOR
1k
INPUT
+3.3V(STBY)
POWER
SP SW
-/+ +
-/+ -
MENU +
MENU -
V3 OPT
OPT GND
OPT GND
HP SW
DISP GND
DISP GND
DISP GND
FL DATA
FL CLK
FL STB
FUNC+
CN1001
AC 6V
AC 6V
SIRCS
+3.3V
VOL+
FUNC-
31P
GND
GND
-28V
(Page 25)
+5V
VOL-
AD2
AD1
JW1061
JW1062
JW1063
ROTARY ENCODER
MENU
R1035
10k
R1032
10k
56
MULTI CHANNEL DECODING
220
GRID9
GRID11
GRID10
0p
0p
0p
2
22
22
2
4
26
25
2
0
10
1
10
C
C
C
GRID10
GRID11
GRID10
GRID12
GRID11
GRID9
GRID8
GRID7
GRID6
GRID5
GRID4
GRID3
GRID2
GRID1
LED1
LED3
LED2
SEL5E20C
GRID8
p
0
2
2
3
2
10
C
VDD
VSS
C1031
D1031
TP15
0.1
GRID7
p
0
2
2
2
2
10
C
GRID6
p
0
2
2
1
2
10
C
GRID5
p
0
2
2
0
2
10
C
GRID4
p
0
2
2
9
1
10
C
GRID3
p
0
2
2
8
1
10
C
GRID2
p
0
2
2
7
1
10
C
R1037
4.7k
Q1031
2SA1175
DIMMER
CONTROL
SWITCH
FL1603
FLUORESCENT INDICATOR TUBE
SEG16
SEG15
SEG14
SEG13
SEG12
SEG11
SEG10
SEG9
SEG7
SEG8
C1013
0.1
SEG14
SEG13
SEG12
SEG11
SEG10
SEG13
SEG12
SEG10
SEG11
SEG9
SEG8
SEG7
SEG6
SEG5
SEG4
SEG3
SEG2
SEG1
VDD
VSS
FLUORESCENT
INDICATOR TUBE
CLK
STB
KEY2
KEY1
SEG14
DRIVER
IC1001
PT6315
DIN
SEG15
C1014
SEG15
DOUT
R1033
R1031
GRID12
22
35V
SEG16
GRID12
VEE
SEG16
LED4
OSC
GRID9
GRID8
GRID7
GRID6
GRID5
GRID4
GRID3
GRID2
GRID1
GRID1
p
0
2
2
16
10
C
Q1032
2SC1740TP
LED DRIVE
p
0
2
2
5
1
10
C
R1036
4.7k
R1011
1
C1011
0.1
C1005 C1009
0.1 0.1
D1071
HZ6.8BP
REMOTE
CONTROL
C1071
47
16V
-TK
R1014
C1007
220p
C1006
100p
C1008
220p
R1009
47k
VCC
GND
16V
100
RECEIVER
OUT
IC1051
NJL24H400A
R1059
100
R1058C1051
1047
S1050
S1057
SPEAKERS
STR-DB798
(CHASSIS)
TP100
C1027
p
00
1
R1015
2
100
R1004
C1003
2200p
0.1
MEMORY/ENTERMAIN MENU
S1054 S1053 S1052 S1051
PRESET
- +
TUNING
C1010
6.3V
47k
220
00
1
C
C1001
100p
TUNING- +
R1005
82k
R1052R1053R1054R1055R1056
1k2.2k2.2k4.7k10k
S1047
SURR BACK
DECODING
LEVEL SHIFT
IC1006
TC74ACT08P
R1047 R1046 R1045 R1044 R1043
22k 10k 4.7k 2.2k 2.2k
S1046 S1045 S1043S1044S1056 S1065
MUSICMOVIEA.F.D.2CH
CN1061
5P
VOL+
GND GND
VOL-
AD2
GND
CN1060
VOL+
VOL-
CN1062
GND
AD2
GND
3P
3P
RV1060
ROTARY ENCODER
MASTER
VOLUME
R1057 R1060
22k 47k
S1061
DIRECT
S1062
MULTI
CH IN
4747
Page 23
6-36. SCHEMATIC DIAGRAM – DC Section –
CN910
(Page 39)
(Page 38)
(Page 37)
(Page 25)
3P
+B
B GND
-B
CN913
2P
CN907
10P
+15V
-15V
+8V(DAB)
+8V(D)
GND(D)
+8V(V)
-8V(V)
-28V(FL)
+8V STBY
C915
8200
63V
C916
8200
63V
2200
C903
1000
2
14
D914
3
D6SBN20
35V
35V
D904
D1NL20U
D905
D1NL20U
D903
D1NL20U
D906
D1NL20U
C917
0.015
100V
C918
0.015
100V
JW901
R911C902
R912
STR-DB798
(AEP,TW)
CN911
3P
O-A
C920
O-B
GND
EB901
CN906
+24V
GND
-24V
+8V
GND
-8V
(CHASSIS)
6P
(Page 51)
(Page 51)
0.1
C919
0.1
200V
R913
150
1
1W
1
1W
D908
D4SBN20
C907
4700
16V
JW902
JW903
JW904
JW905
F904
T4AL
250V
2
1
3
F903
T4AL
250V
4
C908
1000
16V
CN902 S901
3P
IMPEDANCE
SELECTOR
4Ω 8Ω
CN901
-1
-2
5P
HI-A
LO-A
GND
LO-B
HI-B
(Page 51)
(Page 37)
CN909
5P
+24V(RY)
GND(RY)
STOP
PW-RY
SUB,T
100
25V
Q903
2SB1241
-18V REGULATOR
D902
HZS20-1LTA
C906C904
35V
R904R902
10k22k
JW907
47
C909
330
50V
C925
C926
220
25V
220
25V
D912
10EDB40
D913
10EDB40
D915
10EDB40
D916
10EDB40
C924
D909
10EDB40
D910
C923
R910
220
2.2
25V
220
25V
CN912
6P
STOP
GND
8V
8V
P.RY
SUB,T
(Page 51)
STR-DB798
4949
Page 24
6-38. SCHEMATIC DIAGRAM – AC BOARD –
(AEP,TW)
(Page 49)
(Page 49)
HI-B
LO-B
GND
LO-A
HI-A
+24V
GND
-24V
MAIN POWER
TRANSFORMER
T901
(Page 49)
CN1
L
N
CN51
2P
6P
STOP
GND
8V
8V
P.RY
SUB,T
R61
STR-DB798
∗
F1
10A 125V
T4AL 250V
F1
∗
C51
2200
16V
C55
1
50V
R55 R56 R54
33k 10k 47k
33k
(TW)
(AEP,UK)
Q54
2SC2785
AC POWER
DETECT
R52
10k
2SC1740TP
RELAY
DRIVE
Q51
2.2k
R51
(Page 39)
(Page 49)
AC 6V
GND
AC 6V
+8V
GND
-8V
(CHASSIS)
EB51
470p
Q52,53
1SS133
R53C53
6800.056
B+ SWITCH
D53
R57
10k
2SA1015
C54
2200
16V
D52 D58
1SS133 10EDB40
SUB POWER
TRANSFORMER
R2
Q52
JW53
D54D55
11EQS0411EQS04
T2
1
D51
1SS133T
RY1
J50
~AC IN
Q53
DTC124ESATP
C56
R58
100
0.0047
D56D57
11EQS0411EQS04
C52
STR-DB798
5151
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