Onkyo TX-SA806 Service Manual page 33

A B
SCHEMATIC DIAGRAMS-6 (SD-6)
VIDEO SECTION-2
1
NAVD-9505(2/2)
U17 VIDEO PC BOARD
D4002
UDZS5.6B
R4001
TX-SR706,DTR-6.9: 6.8K
TX-SR806,DTR-7.9: 10K
R4003
2 0.47(1/2W)
+12V
4A
5 SEC2-1 F4000 D4004
4 SEC2-2
3
D5SBA20
2 SEC3-1
1 SEC3-2
F4001
P4000B
4A
R4009
0.47(1/2W)
5 POFF
4 12VRL
GND_MPU D4010
3
1SS352
2 +SUB
1 POWERD
+12V
3
JL901B
Q4000
KRC105S
D4009
D3SBA20
+12V
4
ANALOG VIDEO POWER SUPPLY PART
NOTE
THE COMPONENTS IDENTIFIED BY MARK ! ARE CRITICAL FOR SAFETY.
REPLACE ONLY WITH PART NUMBER SPECIFIED.
BOLD VOLTAGE (MEASURED WITH VOLTMETER) IS DC VOLTAGE.(NO INPUT SIGNAL).
ALL PNP TRANSISTORS ARE EQUIVALENT TO 2SA1015-GR UNLESS OTHERWISE NOTED.
ALL NPN TRANSISTORS ARE EQUIVALENT TO 2SC1815-GR UNLESS OTHERWISE NOTED.
ALL DIODES ARE EQUIVALENT TO 1SS133 UNLESS OTHERWISE NOTED.
ELECTROLYTIC CAPACITORS ( ) ARE IN uF/WV.
ALL CAPACITORS ARE IN pF/50WV UNLESS OTHERWISE NOTED.
5 EX) 030- 3pF, 330- 33pF, 331- 330pF, 333- 0.033uF
ALL RESISTORS ARE IN OHMS 1/4WATTS UNLESS OTHERWISE NOTED.
THE THICK LINES ON PC BOARD ARE THE PRINTING SIDE OF THE PARTS.
EX) PRINTING SIDE
CIRCUIT IS SUBJECT TO CHANGE FOR IMPROVEMENT.
C
TO NADG-9505
POFF2
0.22(1W)
R4002
+12VHDMI
GNDHDMI
D4003
1SS352
LBC2518T4R7M
L4001
470K +5.6VVD1
Q4002
NJM78M05FA
SI8008TM NCH-2541
Q4001
L4000 +7.9V
L4005
1 2 1 3 +5.6VVD3
VIN SW I O
5 4 G
VADJ (TX-SA706X only)
SS
2
GND LBC2518T4R7M
KRC105S
3
Q4003
VPOWER
C4008
NC NC
GNDVD
D4012
DTR-6.9/7.9 only
Q4004
NJM2388F09
LBC2518T4R7M
L4002 +9VVD2
+9.0V +9VVD1
+9.0V
L4004
D4007
1SS352
LBC2518T4R7M
GNDVD
POFF
APOWER
+12V +12VTRG
+12V +12VDG1+SUB
D4014 GNDDG
1SS352
Q4005 NJM2391DL1-33
R4021 SI8008TM NCH-2541
Q4805
0.22(1/2W) L4003 +3.3V
1 2 1 3
SW
VIN I O
G
5 4
SS VADJ
2
GND
3
DTR-6.9/7.9 only
R4022
3.3(2W) +12V
D E
SD-5:D3
+3.3VECON
GNDECON
+12VDG2
GNDDAC
+5.9VXM
F G
NAPS-9089
U25 POWER SUPPLY PC BOARD
NO USE
D9309
NC
J9311
F9301 NC
D9303
NC
+9.0V
J9310
NC
D9307
P9301A
DSP_AC1
1
D9308
2 DSP_AC2
R9310 NC
10(1/2W)
3 -VP_AC1
-VP_AC2
4
D9312 D9313
5 FLAC1
RL1N4003 RL1N4003
Q9301
R9304
FLAC2 2SC2235-Y
6 10(1/2W)
+3.3V
D9314 D9315
RL1N4003 RL1N4003
R9308
1(1/2W)
TX-SR806/SA806/SA706X SECONDARY POWER SUPPLY PART
NAPS-9099
U24
POWER SUPPLY PC BOARD
D9309
NC J9311
NC
D9303
F9301
+9.0V
NC
J9310
NC
D9307
P9301A
DSP_AC1
1
D9308
2 DSP_AC2
R9310 NC
10(1/2W)
3 -VP_AC1
4 -VP_AC2
D9313
D9312
5 FLAC1 RL1N4003 RL1N4003
R9304 Q9301
FLAC2
6 10(1/2W) 2SC2235-Y
+3.3V
D9314 D9315
RL1N4003 RL1N4003
R9308 1(1/2W)
DTR-7.9 SECONDARY POWER SUPPLY PART
TX-SR806/SA806
H
<Note>
SD-x:XY is short for Shcematic Diagram-x and
each socket's location, X=A to H, Y=1 to 5.
GNDDC 6
+9VDC 5
GNDDSP 4
GNDDAC 3
2
+9VDG
POFF2 1
D9311
JL9501B
NC
NM
+3.3VMPU 4
-VP 3
FLAC2 2
FLAC1 1
JL9303B
GNDDC 6
+9VDC 5
GNDDSP 4
GNDDAC
3
+9VDG 2
POFF2 1
D9311
JL9501B
NC
NC
+3.3VMPU 4
-VP 3
FLAC2 2
FLAC1 1
JL9303B