Power Supply Section - Onkyo HT-R495 Service Manual

1

Power Supply Section

MODEL NO.TX-SR292BT/494,HT-R398_C/495_C,VSX-534/534D/326_C/834
BAPRC-2695 (2/6)
E
D
C
B
A
1
2 3
2 3
4
NM
Q8963 R8962
0 R8961
KRA302E
100k
NM
Q8962
2SC2712-GR
+5.2V
GND2
NM
+5.2VHD
L8963
TP881
BLM21PG221SN1
L8964
1255AY-100M
BLM21PG221SN1 L8962
L8961
NM
BLM21PG221SN1
GNDDG
R8951
1k
+3.319V
+3.3VHD L8953
TP882
BLM21PG221SN1
L8954 1255AY-100M L8951
BLM21PG221SN1 BLM21PG221SN1
L8952
R8941
1k
+1.13V
R8944 R8945
MN864788A 1.13V 3.3k 6.8k
MN864778A 1.21V 5.6k 6.8k
+1.1VDC
+1.1VHD L8943
TP883
BLM21PG221SN1
L8944 1255AY-100M
BLM21PG221SN1 L8941
L8942
BLM21PG221SN1
R8931
1k
+1.0VDSP +1.037V
TP884 L8933 NM
BLM21PG221SN1
1255AY-100M
L8934 NM
BLM21PG221SN1 L8932 L8931
BLM21PG221SN1
4
5
Schematic Diagrams
12:C9 FANCTRL
TP728
POFF2
12:C8 POFF2
POFF
12:C8 POFF
12:M1;14:B10;14:P8;15:R5
HDMI_PON
12:C9 M_PON
+12VWR
12:C9 +12VWR
R8903 1k
POFFIN
TP730
GNDDG POFFIN
POFF
M_PON TP727 M_PON
M_PON
TP8700 POFF2
POFF2
GNDDG
GNDDG
+12VDG
+12VDG
GNDDG
GNDDG
+12VDG
+12VDG
R8905
TP8728
10k
TP757
TP6
+12VWR
GNDDG
+12VDD
TP7
TP11
GNDDG
TP12
TX-SR292BT/SR494, HT-R398/R495
5
6
E
D
C
B
A
6