Marantz SR7300 Service Manual page 16

P604-2/2
JU03
1
GND
LU34 _RSTFL
2
_RSTFL
LU33
3
_CEFL
LU32
4
RCOUT
LU31
5 OSDCLK
OSDCLK
LU30
6 VOL+
VOL+
LU29
7 OSDDATA
OSDDATA
LU28
8 VOL-
VOL-
LU27
9 _RSFL
_RSFL
LU26
10 _STBYLED
_STBYLED
LU25
11 KEY0
KEY0
LU24
12
_WRITE
LU23 KEY1
13
KEY1
LU22 SEL+
14
SEL+
LU21
15 KEY2
KEY2
LU20
16 SEL-
SEL-
GND
RU25 47k
MODEL RU26 RU27
RU24 47k
SR7300/ U - 0
K 56k 39k
+5VL
N 82k 22k
PS7300/ F 39k 56k
SR7300F/ U 27k 68k
K 8.2k 82k RU26
N 22k 82k
F 100k -
+5VL
RU27
RU49
47k
_WRITE
BTMOD
BTMOD
XSTATE
XSTATE
_XMODE
_XMODE
_CEDIR
_CEDIR
D_A
D_A
_RSTADC
_RSTADC
DFS
DFS
_RSTDAC
_RSTDAC
_RSTDSP
_RSTDSP
_SCS
_SCS
_FCS
_FCS
_ATT
_ATT
JU01 JU01
SL- 1 14
SL- GND
SL+ 2 15
SL+ FR- FR-
3 16
GND FR+ FR+
4 17
SR+
SR+ GND
5 18
SR-
SR- FL+ FL+
6 19
SBL-
SBL- FL- FL-
7 20
SBL+
SBL+ -15V
8 21
GND RT RT
9 22
SBR+ SBR+ GND
SBR- 10 23
SBR- LT LT
CNT- 11 24
CNT- GND
CNT+ 12 25
CNT+ SW+ SW+
13 26
GND SW- SW-
GND GND
EARTH
JU10
GND
EARTH
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+5VL
RU19 47k
RU20 47k
QU04
+5VL
RS-232C transmitters/receivers S-80145ALMC-JA6-T2
5 4
QU03
ICL3232ECB
1 2 3
1 16
CU14 0.1 C1+ VCC
CU18
2 15
V+ GND 0.1
3 14
GND GND
CU15 0.1 C1- T1out
4 13
C2+ R1in
CU16 0.1
5 12 GND GND GND
C2- R1out
6 11
V- T1in
CU17 0.1 7 10
T2out T2in
XU01
8 9 20MHz
R2in R2out
3
GND
+5VL 1 2
RU18 Dummy
CU11 0.1 +5VL
GND
GND
RU12
10k
GND GND GND
GND
CU13 +5VL
102 101 100 99 98 97 96 95 94 93 92 91 90 89 88 87 86 85 84 83 82 81 80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65
22u/6.3
GND GND GND
CU12
0.1
103
AVCC
104
VREF
KEY0 105
KEY0
KEY1 106
KEY1
KEY2 107
KEY2
108
_5V_DOWN
109
_P_LINE_FAIL
110
MODE
111
_OVFL _OVFL
112
TV_AUTO
113
GND QU01
AVSS
114
VSS
H8/2398
M_RC_OUT 115
M_RC_OUT
RC_OUT 116
RC_OUT
M_RC_IN 117
M_RC_IN
118
VSYNC
RU30 10k
119
KILLIR
DC_OUT1 120
DC_OUT1
DC_OUT2 121
DC_OUT2
RC_IN 122
RC_IN
123
MD0
124
MD1
_WRITE 125
MD2
126
_FCS
RU31 47k 127
_RSTDSP
128
_SCS
RU32 47k
GND
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38
GND GND GND
GND
GND
CU01
RU50
0.1 +5VL
10k
CU02
GND
22u/6.3
GND
+5VL
QU02
AT24C08 CU19
0.1
1 8
A0 Vcc
RU46 2 7
A1 WP
47k
3 6
A2 SCL
4 5
GND SDA
GND
GND
+5VL +5VL
QU06
RN2303
2
3
1
23
+5VL
RU14
Dummy
GND
GND GND GND
64
_CEFL
63
DSPCLK DSPCLK
62
RXD
61
DSPDIN DSPDIN
60
TXD
59
DSPDOUT DSPDOUT
58
VCC
57 LRMUTE
LRMUTE
56 SLSRMUTE
SLSRMUTE
55 SBMUTE
SBMUTE
54 CNTMUTE
CNTMUTE
53
VSS
52 CU05 0.1 SWMUTE
SWMUTE
51 MULTIMUTE
MULTIMUTE
50 CE_TC B
CE_TCB
49 CE_TCA
CE_TCA
48 AFCLK
AFCLK
47 AFDATA
AFDATA
46
HINBUSY HINBUSY
45 _CE_OSD
_CE_OSD
44
VSS
43 _BP_CVB S
_BP_CVBS
42 _BP_Y
_BP_Y
41 _CE_EXTA
_CE_EXTA
RU28
40
NC
47k
39
VCC
GND GND GND
CU03 CU04
0.1 22u/6.3
CU23
0.1
GND GND GND
GND
GND
RERR
REQ1
DIR_INT
REQ2
GND
+5VL +5VL
RU47
0
DU01
RU48
47k
CU21
10p
GND
GND
+5VL +5VL
13
GND
FLRA_ON LU35 12
FLRA_ON
FLRB_ON LU36 11
FLRB_ON
LU37
SURR_ON 10
SURR_ON
LU38
HEAT 9
HEAT
LU39
8
_5V_DOWN(NC )
LU40
7
_P_AMP_FAIL
LU41
6
_P_LINE_FAIL
LU42
_HEAT_DET 5
_HEAT_DET
LU43
_STANDBY 4
_STANDBY
LU77
3
_P_DOW N
LU78
_HP_DET 2
_HP_DE T
LU44
HP_O N 1
HP_ON
JU04
GND
JU02 JU02
LU02 LU14
LRMUTE 14 1 CE_VOLB
LRMUTE CE_VOLB
SLSRMUTE LU03 15 LU15 CE_VOLA
2
SLSRMUTE CE_VOLA
SBMUTE LU04 16 LU16 VOLCLK
3
SBMUTE VOLCLK
LU05 LU17
CNTMUTE 17 4 VOLDATA
CNTMUTE VOLDATA
LU06
SWMUTE 18 5
SWMUTE GND
LU07
MULTIMUT E 19 6
MULTIMUTE GND
LU08
20 7
ERMUTE GND
LU09
21 8
_PDOW N +5VD
LU10
CE_TCB 22 9
CE_TCB +5VD CU80 CU82 CU83
LU18
220/10 220/10 220/1 0
LU11
CE_TCA 23 10 1 2
CE_TCA +5VD
LU12
AFCLK 24 11 3
AFCLK GND
LU13
AFDATA 25 12 GND GND GND GND
AFDATA GND
LU19
26
13 1 2
+5VL +5VL
3
GND GND GND
ERMUTE
CU81
100/10
JU05
+5VL 15
GND
LU46 14
CTS
13
GND
LU48
12
RXD
LU47
_CE_EXTA 11
_CE_EXTA
LU50
10
RTS
LU49
_BP_Y 9
_BP_Y
LU52
8
TXD
LU51
_BP_CVBS 7
_BP_CVBS
LU54
6
TV_AUTO
LU53
_CE_OSD 5
_CE_OSD
LU56
4
VSYNC
LU55
3
OSDCLK
LU57 2
OSDDATA
1
GND
GND
LU58
RDSDIN 33
RDSDIN
TUDIN LU59 32
TUDIN
TUCLK LU60 31
TUCLK
LU61
TUDOUT 30
TUDOUT
LU62
_CERDS 29
_CERDS
LU63
_KILL_RDS 28
_KILL_RDS
LU64
_CE_T U 27
_CE_TU
LU65
TU_MUTE 26
TU_MUTE
LU66
TU_ST 25
TU_ST
LU67
_TU_S D 24
_TU_SD
RU43 22k
23
GND
RU44 22k
22
DIG6_IN
21
SPDIFI[6] DIG6_IN
20
DIG5_IN
19 COAX INPUT
SPDIFI[5] DIG5_IN
18
DIG4_IN
17
SPDIFI[4] DIG4_IN
16
DIG3_IN
15
SPDIFI[3] DIG3_IN
14
DIG2_IN
13 OPT INPU T
SPDIFI[2] DIG2_IN
12
DIG1_IN
11
SPDIFI[0] DIG1_IN
10
DIGOUT
9
SPDIFO DIGOUT
LU69
_WRITE 8
_WRITE
LU70
DC_OUT1 7
DC_OUT1
LU71
DC_OUT2 6
DC_OUT2
LU72 1k
RC_IN 5
RC_IN
LU73
4
IR
LU74
RC_OUT 3
RCOUT
LU75
M_RC_IN 2
M_RC_IN
LU76
M_RC_OUT 1
M_RC_OUT
JU06 33FMN
GND
JU07
1
SPDIFI[1] AUXIN
2
GND
24