Onkyo TX-850 Service Manual page 5

Quartz synthesized tuner amplifier
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PARTS
LIST
REF. NO.
PART
NO.
Al
AQ
A3
Ad
AS
AT
AS&
AQ
Alo
All
Al2
AlS
Al4
Al5
Al7
Al'
Ald
A20
A21
A22
A23
A24
A25
A32
Al
Ad2
A43
ADL
ASS:
AS7
A61
A8l
A82
A83
A84
A85,
A86
A87
A88
A89
F901
F902
27100163
27121106
27121107
27121109
27121110
27121111
27141261A
27141262
27160225,
27141263
27141264
27190644
27273098A
28133198A
28130249
27270147
870048
27300750
27190524
834430088
831130088
830440089
834430108
834230108
82143006
82142004
833430080,
271104184
28184394
834430088,
801230
1A091121
833430080
28191466A
27175142
28323241
28323361
28323363
28323365A.
28323310
28322925,
28323367
27190647
28323369
252050
252075,
DESCRIPTION
Chassis
Back panel <D>
Back panel <G>
Back panel <W>
Back panel <PX>
Back panel <Q>
Bracket LH
Bracket RH
Radiator
Bracket SH
Bracket H
Holder,dial plate
Joint,power
Back
plate
Dial plate
Spacer
3 X8xX0.8t,Nylon washer
4 Strainrelief
Holder
38TTS+8B(BC),Tapping screw
3TTW+8B,Tapping screw
A4TTC+8C(BC),Tapping screw
3TTS+10B(BC), Tapping screw
3TTS+10B(Ni),Nickel
screw
3P+6FN(BC),Pan
head screw
2P+4F(BC),Pan head screw
3TTP+8P(BC),Tapping screw
Front bracket ass'y
Top cover
3TTS+8B(BC),Tapping screw
3STS+8BQ(BC), Tapping screw
Front panel ass'y
3TTP+8P(BC),Tapping screw
Clear plate
Leg
Knob POWER
Knob SPEAKER
A
Knob SPEAKER
B
Knob VOLUME
Knob TONE
Knob SLIDE
Knob PUSH
Knob SLIDE
Knob PUSH
\A(ST-6),Primary fuse <D/W/PX>
»SA-SE-EAK,Primary
fuse <G/
W/PX/Q>
REF. NO. PART NO.
DESCRIPTION
F903
252075,
* 2.5A-SE-EAK,AC outlet fuse <G>
F906
252070
+ } 1A-SE-EAK,Secondary
fuse <G/Q>
P304
25060044
3X 14mm,Terminal GND
P901
253123,
+, AS-UC-6 # 18,Power supply cord
253136,
<D/PX
253140 or
253146
253148 or
A AS-CEE,Power supply cord <G/
253150
Ww
253118
' AS-SAA,Power supply cord <Q>
P902
25050341
NSCT-4P168T,AC
outlet <D/PX>
P902,P903 25050337
& NSCT-2P164,AC outlet <G/W>
2501653,
2SC3856(0),
2201654 or
— 2SC3856(Y) or
2201655
2SC3856(P),Power
amplifier tran-
sistor
Q523,Q524 2201663,
2SA1492(0),
2201664 or
2SA1492(Y) or
2201665
2SA1492(P),Power
amplifier tran-
sistor
$903,
25065123,
|, NPS-1258P,Voltage
selector
switch <W>
TOOL
2300303
NPT-992D,Power
transformer
<D>
2300304
4, NPT-992G,Power transformer
<G>
2300305
*, NPT-992DG,Power
transformer
<w/PX>
2300339
A NPT-992Q,Power transformer
<Q>
Ul
1A090576-1
NAAR~-3276-1,FM/AM
tuner and
selector circuit pe board ass'y <D>
1A090576-1A_
NAAR~-3276-1A,
FM/AM
tuner
and selector circuit pe board ass'y
<G/®
1A091576-1B
NAAR~-3276-1B,
FM/AM
tuner
and selector circuit pe board ass'y
<W/PX>
U2
1A090577-1_
NAAF~-3277-1,Power
amplifier pe
board ass'y
U3
1A090578-1
= NASW~-3278-1,Speaker
switch pe
board ass'y <D/W/PX>
1A090578-1A_
NASW-~-3278-1A,
Speaker switch
pe board ass'y <G/Q>
U4
1A090579-1_
NAETC-3279-1,Speaker
terminal
pe board ass'y <D>
1A090579-1A_
NAETC-3279-1A,
Speaker termi-
nal pe board ass'y <G/W/PX/Q>
REF. NO.
PART
NO.
DESCRIPTION
US
1A090580-1
NAETC-3280-1,Const.
voltage
cir-
cuit pe board ass'y
U6
1A090581-1_
NADIS-3281-1,Display pe board
ass'y <D>
NADIS-3281-1A, Display pe board
ass'y
<G/Q>
NADIS-3281-1B, Display pe board
ass'y <W/PX>
NAAF-3282-1,Volume pc board
ass'y <D>
NAAF-3282-1A, Volume pe board
ass'y <G/W/PX/Q>
NAAF-3283-1,Preamplifier pc
board ass'y <D>
NAAEF-3283-1A, Preamplifier pc
board ass'y <G/W/PX/Q
1A090581-1A
1A091581-1B
U7
1A090582-1
1A090582-1A,
Us
1A090583-1
1A090583-1A,
ug
1A090584-1
= NAAF-3284-1,Switch
pce board
ass'y
Ul0
1A090585-1
= NADIS~3285-1,Volume
indicator
pe board ass'y
Ul
1A090586-1
= NAETC-3286-1,Video
terminal
pc
board ass'y <D/PX>
NAETC-3286-1A,
Video terminal
pe board ass'y
<G/W/Q>
NAPS-~3287-1,Power supply circuit
pe board ass'y <D>
NAPS-3287-1A,Power supply cir-
cuit pe board ass'y
<G>
NAPS-3287-1B,Power supply cir-
cuit pe board ass'y <W/PX>
NAPS-3287-1C,Power supply cir-
cuit pe board ass'y <Q?
Equalizer amplifier
<D
Equalizer amplifier
pe board ass'y <G/W/PX/Q
1A090586-1A
Ul2
1A090587-1
1A090587-1A,
1A091587-1B
1A091587-1C.
Ula
1A073554-2
1A086554-3
NOTE: "D>: Only 120V model
<G>: Only 220V model
<W>: Only Wolrdwide model
<PX>: Only PX model
<Q: Only 240V model
NOTE:
THE COMPONENTS
IDENTIFIED BY MARKA\
ARE CRITICAL FOR RISK OF FIRE AND
ELECTRIC SHOCK. REPLACE ONLY WITH
PART NUMBERS SPECIFIED.

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