Onkyo TX-SA806 Service Manual page 12

A B
SCHEMATIC DIAGRAMS-5 (SD-5)
VIDEO SECTION-1
TX-SA706X only
NAVD-9505(1/2)
1
U17
VIDEO PC BOARD
DTR-6.9/7.9 only
PR PRIN3
C4106
10/50
PBIN3
PB
C4107
C4112
10/50
102K
C4108
Y CYIN3
10/50
R4109
PR_IN2
PR PR PRIN2
C4114
10/50
PB_IN2
2
PB PB PBIN2
C4122
10/50
CY_IN2
Y Y CYIN2
C4125
10/50
PR_IN1
CY_OUT0
PR PR C4131 PRIN1
102K
C4133 CYOUT1
10/50
PB_IN1 +5.6VVD1
PB PB PBIN1
COUT_MON
C4141
10/50
CY_IN1
Y Y CYIN1
C4145
R4190-4192:
75 10/50
TX-SA706X=75
R4121
OTHER=0
R4122
PR PR PR_OUT0
75
WF26
R4124
PB PB PB_OUT0
75
WF25
Y Y R4126 CY_OUT0
75
WF24
3
GNDVD
PR_OUTZ2
PR
R4128
75
WF26
C4160
NC
PB PB_OUTZ2
R4131
75 WF25
C4159 C4165
Y 102K NC
CY_OUTZ2
R4133
75
WF24
C4166
NC
DTR-6.9/7.9 only
C4167
104Z
CIN_V3
C4168
C Y YIN_V3
10/50
VIN_V3
C4169
10/50
C4175
C4174 104Z CIN_V2
102K
C4176
C YIN_V2
Y
10/50
4 VIN_V2
C4179
10/50
R4142
75
COUT_V1
R4143
C Y YOUT_V1
R4144 75
75
VOUT_V1
GNDVD
C4197
104Z
C4196 CIN_V1
102K C4198
C Y 10/50
YIN_V1
C4199
10/50
VIN_V1
C4202
104Z
CIN_DVD
C4205
10/50
C Y YIN_DVD
C4206
10/50 VIN_DVD
5
COUT_MON
C4209
102K
R4159
75 YOUT_MON
C Y
R4162
R4161
75 75 VOUT_MON
WF21
C
TO NAHDM-9562 TO NAHDM-9562
SD-11:H1 SD-11:H3
P4104 TX-SR806,DTR-7.9
P4900A JL8002A
P4104A TX-SR706,DTR-6.9
C4234
NC C4235 C4230
C4110 104Z C4111 104Z
104Z C4113
104Z
C4115 104Z 104Z
C4109
470/6.3 104Z
PR_OUT0 C4117 C4118
PROUT1 104Z
C4120 R4199 NC
C4119
104Z
470/6.3 C4231
104Z
C4121
102J
C4124
220/6.3
PB_OUT0 41 24 C4127
PBOUT2 PB1
PBOUT1 C4126 220/6.3 42 23 104Z
PBOUT1 CY6
GNDVD C4129 C4130 43 22
GND2 CY5
22/50 C4132 221J 44 21
C4128
CYOUT3-FB CY4
1000/6.3
45 20 104Z
CYOUT3 CY3
C4134 46 19
C4136 CYOUT2-FB CY2
47/25 104Z 47 18 C4139
22/50
CYOUT2 CY1
C4135 C4137 48 17 22/50
C4138
COUT4 BIAS
+5.6V R4119 1000/6.3 221J
49 16
VCC2 C8
2.2 C4211 50 15 C4140
COUT3 C7
104Z
ADINSC 104Z C4142 51 14
COUT2 Q4100 C6
C4144 104Z 52 13
COUT_V1 C4143
COUT1 GND1
104Z 53 AN15881A-VT 12 104Z
GND3 C5
54 11
YOUT4-FB C4
C4146 Video Switch
YOUT_MON 55 10
YOUT4 C3
470/6.3
56 9
YOUT3-FB C2
C4147
ADINSY 57 8
YOUT3 C1
470/6.3 58 7 C4229
YOUT2-FB VCC1
YOUT_V1 470/6.3 59 6 104Z
YOUT2 Y8
60 5
C4152 C4150 C4151
YOUT1 Y7
47/25
61 4 104Z
VCC3 Y6
62 3 C4153
VOUT4-FB Y5
63 2 104Z
C4154
VOUT4 Y4
104Z
64 1
SDA Y3
820K
R4206
R4113
2.7K
390K
R4202
R4205
820K R4204
R4111
2.7K 820K 390K
R4208
820K R4200
R4210 820K
820K
C4156
47/25
+5.6V
+9.0V
R4138
2.2
C4177 C4178
104Z 104Z
1 V+ 38
Pb IN4
PBIN2 C4180
2 Pb IN2 37
V+ 104Z
3 GND 36
C4181
Y IN4
104Z
PRIN2 4 Pr IN2 35 C4183
V+
104Z
5 GND 34 C4182
Y OUT1
CYIN1 C4185 6 Y IN1 33 104Z C4186
C4184
Q4101 GND
104Z 10/50 10/50
7 V+ 32
Pb OUT1
PBIN1 8 Pb IN1 NJW1321FP1 31 C4189
GND
10/50
9 V+ 30 C4187
Video Switch Pr OUT1
PRIN1 29 104Z
C4188 10 Pr IN1
AUX3
104Z 11 GND 28 C4190 C4191
AUX2
104Z 104Z
12 27
PORT3 Y OUT2
13 26
C4192
PORT2 AUX1
14 ADR 25 10/50
AUX0
R4148
10K
WF23
WF22
Triple Amplifier
FHP3350IM14X
WF21
Q4102
C4226
PB_OUTZ2
470/10
14 1
OUT2 DISABLE1
13 2
-IN2 DISABLE2
WF23 12 3
+IN2 DISABLE3
11 4
-Vs +Vs
10 5
+IN3 +IN1
WF22 9 6
-IN3 -IN1
8 7
OUT3 OUT1
C4227
PR_OUTZ2
470/10
GNDVD
D E
TO NADG-9504 TO NADG-9504
SD-7:B3 SD-7:B3
P4100A P4101A
NC
C4101
R4100
NC
R4101
NC
C4104
NC
R4102
NC
C4105
NC
DTR-6.9/7.9 only
GNDDG
RS232TXD
R4800
100K
RS_ETH
8
Q4800
9
2SC2712-GR
PRIN_DAC DACPR 10
Q4801
PBIN_DAC DACPB 2SC2712-GR 11
R4801
12
100K
104Z
13
C4222 +3.3VST 14
C4223
104Z
C4232
104Z
C4123 R4114
0 PBIN1
104Z
C4219
104Z
DACPY
CY3
R4116 CYIN2
0 CYIN1
104Z
R4118
0
C4233
DACSC
104Z
C4220 C4802
CIN_V4 104Z
CIN_V3
CIN_V2 R4812
10
CIN_V1
CIN_DVD
C4221
R4814
104Z 10
DACSY R4815
10K
BLM21PG221SN1
L4800
YIN_V4 +3.3VECON
YIN_V3
YIN_V2
GNDECON
390K
C4808
R4207
104Z
Q4804
390K
R4203
IS25C02-2GLI
1
CS
2
R4201
SO
TO NADG-9505
390K 3
WP
4
R4209
GND
SD-6:D2
R4211
390K
DTR-6.9/7.9 only
TX-SR806,DTR-7.9 only
TO NAETC-9480
SD-3:B2
TO COOLING FAN
<Note>
Refer to SCHEMATIC DIAGRAM-16 (SD-16)
for analog video signal waveforms.
F G
TO NARF-9507 TO NARF-9507
TO NADG-9504
SD-15:B1
SD-7:B3
P4102A
P102B
C4601
101J
All except TX-SA706/806 DC, DD type only
TC4066BFT
Q4802
7
IN/OUT3 VSS
6
OUT/IN3 CONT3
5
OUT/IN4 CONT2
4
IN/OUT4 IN/OUT2
3
CONT4 OUT/IN2
2
CONT1 OUT/IN1
1 R4700
VDD IN/OUT1
10K
C4800 LBC2518T470M 16
FORCEOFF
104Z L4700
+3.3VST 15
VCC
14
GND
R4704 13
10K T1OUT
GNDDG 12
FORCEON
R4706 330 11
232TXD
T1IN
330
R4705 10
RS232TXD
INVALID
R4707
232RXD 9
R1OUT
17 64 330
RS232RXD
RE2
18 63 ICL3221ECVZ
RE3 R4708
19 62 330 RS232 Tranceiver
AVdd RE4
20 61
AVss RE5
21 60
RA3/AN3/Vref+ RD0
22 59
17:RF1/AN6/C2OUT
RA2/AN2/VRef- RD1
18:ENVREG
23 58
RD2
RA1/LEDB/AN1
24 57
RA0/LEDA/AN0 VDD
25 56
Vss VSS
Q4803
26 55 C4803
Vdd VSSPLL
27 54 104Z
RA5/AN4 PIC18F66J60 VddPLL
28 53
RA4/T0CK1 RBAIAS
Ethernet Controller
29 52 R4808
RC1 Vsstx
30 51 2.2K
DLP2ADN900HL4L 49.9_1%
RC0 TPOUT+
31 50 L4802
TX1 TPOUT-
32 49 1 8
RX1 Vddtx
C4814 2 7
49.9_1%
104Z R4816
3 6
4 5
R4817
49.9_1%
+3.3V
+3.3V
L4801
BLM21PG221SN1
+3.3V
X4800
25.00MHz
R4822
8 10K
VCC
7 IRINA1
HOLD
6 IRINA2
SCK
5 PGD
IRINB1
SI
IRINB2
+3.3VECON
DTR-6.9/7.9 only Q4600
2SA1162-GR
R4600
22
Q4601 D4600 D4601
TRGC
1SS352 1SS352
GNDDG
+12VTRG
R4602 1K
FANCTRL
KRC102S Q4602
R4603 2SA1162-GR
22
KRC102S
D4602 D4603
TRGB
1SS352 1SS352
R4510 Q4603
R4606 1K
5.6K
C4500
2SA854S-R
R4607
220/25
3.9 Q4604
3 KRC102S
2SA950-Y Q4605
2
D4604 D4605
TRGA
1 R4502
R4503
1SS352
47K 47K 1SS352
Q4500
Q4501 1K
R4501 R4613
2SC1815-GR
100
+12VTRG
GNDDG
R4618
+12VDG1+SUB R4617
2 47 47
1
Q4606
+13.7V 2SC1815-GR
KRA102S
Q4503
R4508
1.8K
2SA950-Y
Q4502
R4507
47K
R4506
1.2K
<Note>
SD-x:XY is short for Shcematic Diagram-x and
each socket's location, X=A to H, Y=1 to 5.
TX-SR806/SA806
H
SD-15:B2
P103B
Q4700
11
R4701
10K 5
1
EN R4702 9
2 C4700 330
C1+
4
1/50
3
V+ 8
4 C4701
C1- 3
1/50 C4704
5
C2+
R4703 7
6
1/50
C2- 330 2
7
V- 6
8 C4705
R1IN 1
1/50
10
C4706
102K
7
49.9_1%
R4809
6
R4810
ETHERNET
8
1
(E-CONTROL)
+3.3V
3
2
4
5
P4800
SI-60073-F or
DTR-6.9/7.9 only
J0026D21NL
P4603
12V TRIGGER (TX-SR806)
OUT ZONE 2
12V TRIGGER
OUT C
P4600
12V TRIGGER
OUT B
BK1608LM182-T DTR-6.9/7.9 only
R4604
L4600 C4602
101J
100 IR IN B
BK1608LM182-T
L4601
P4601
C4603
12V TRIGGER
NC
OUT A
BK1608LM182-T
R4608
L4602 IR IN A
R4615
100 C4604
R4611 0 101J IR IN (TX-SR706/806)
L4603
0
BK1608
P4602
R4614
LM182-T
IR OUT
0
0
R4612 IR OUT (TX-SR806)
R4622 0
0 R4609
12V TRIGGER (TX-SR706)
0
R4616
C4606 OUT ZONE 2
NC
TX-SA706X:
No 12V Trigger and
IR terminals and parts
DTR-6.9/7.9 only