Pioneer SX-255R Support Question
Pioneer SX-255R Support Question
Find answers below for this question about Pioneer SX-255R.Need a Pioneer SX-255R manual? We have 1 online manual for this item!
Question posted by kotero46 on September 1st, 2020
Why Would The Receiver Keep Blinking 'poweroff' And Muted
The person who posted this question about this Pioneer product did not include a detailed explanation. Please use the "Request More Information" button to the right if more details would help you to answer this question.
Current Answers
Answer #1: Posted by Odin on September 1st, 2020 4:45 PM
Odin
Member since:
April 10th, 2010 Points: 41,236,630
Member since:
April 10th, 2010 Points: 41,236,630
See the answer by "Sam" at https://www.fixya.com/support/t3718764-pioneer_receiver_sx_255r.
If the issue persists or if you require further advice--or if the instructions don't seem to apply--you'll have to consult the company; use the contact information at https://www.contacthelp.com/ioneer/customer-service.
Hope this is useful. Please don't forget to click the Accept This Answer button if you do accept it. My aim is to provide reliable helpful answers, not just a lot of them. See https://www.helpowl.com/profile/Odin.
Related Pioneer SX-255R Manual Pages
Service Manual - Page 1
... Manual
(1D PIONEER®
The Art of Entertainment
ca. Box 1760, Long Beach, CA 90801-1760, U.S.A.
P.O. Type
Model
SX-255R
SX-205
Power Requirement
The voltage can be converted by the following method. o f-2 0.6:0
STEREO RECEIVER
SX-255R
SX-205
THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S). ADJUSTMENTS
26
3
8.
EXPLODED VIEWS, PACKING AND
PARTS LIST...
Service Manual - Page 2
... or handling circuit boards and other hazards.
These are
identified by using replacement components rated for the continued protection of this product properly and safely, you are ...Health & Safety Code, Section 25249.5). Electrical components having such features are often not evident from time to a qualified service technician. SX-255R, SX-205
1. Also, when soldering do so and...
Service Manual - Page 3
CHECKING FOR PCB PATTERN OF MOTHER ASSY
1. SX-255R, SX-205
2. Remove the three screws ® fastening the MOTHER Assy,
and the two screws ® fastening the Radiator. 4. Radiator
REG Assy
4
MOTHER Assy Rear Panel
O
4
...
Service Manual - Page 4
... usual or they are not always kept in our Master Spare Parts List. • The 22, markfound on some component parts indicates the importance of the safetyfactor of Exterior and Packing (For SX-255R/KUXJ)
Mark No.
Parts List of the part. Description
Parts No. Mark No. Description
Parts No.
>>>> l>>>
1 FL Panel 2 Front...
Service Manual - Page 5
... L_52-42I
5
0 0
33
17
T-----52
36
1 SX- 205/ KUXJ,
SDXJ only'
28 29
7 - -1 SX-255R/
LE_5-- L!-__-_-52_J'YPWXJ only
43
SX-255R/KUXJ, KCXJ, YPWXJ only
Except SX-255R/YPWXJ
7
SX- 255R/ KUXJ, KCXJ and SX- 205/ KUXJ only
50 O
18
45
17
38
54 22
Except SX-255R/YPWXJ
39 I 16
L _
56 52
SX- 255R/ YPWXJ only
o Qd
26 I----
47 22
oHc...
Service Manual - Page 6
...
(40-SCH- 6)
T
SCH- 1
OVERALL SCHEMATIC DIAGRAM ama
O mao•omm
i!
AC POWER CORD
(P001015:5X-255R/KUXa KCXJ
SX-205/KUXJ)
AKE-116-
(A001159,SX-255R/YPWXJ)
(ADG1157.SX-205./SOXJ)
J6 AKT1 083- L L
-I XXXX
O O0
SX-205/SDXJ ONLY
SX-255R/KUXJ.KCXJ SX-205/XUXJ
AC120y 60H. leoopf
1
I iT Ii
`--.-P
'-'-g
1 i
N L•mena ng•
••
r
omma...
Service Manual - Page 7
... some components parts indicates the importance of the safety factor of EXPLODED VIEWS" or "PCB
PARTS LIST".
2.
COILS:
Unit: m:mH or µH unless otherwise noted.
6. Value in ( is DC voltage at no input signal unless otherwise noted. mA : DC current at rated power.
4= mA or A-- Assy S876 POWER STANDBY/ON (for SX-255R...
Service Manual - Page 9
... ASSY (1/2)
< 0
M- \ \
I - • MOTHER Assy (1/2)
SX-255R, SX-205
MOTHER ASSY (1/2)
FM IF BPF
(AWZ8086:SX- 25SR/KUXJ, KCXJ) (AWZ8087 , SX- 255R/YPWXJ)
AXO1002
0 ,Y
,,N
,M
MY ,01
to
JI-- 2 C172
1000p...
0
0
o
771 777 GND GND 0 s U oI
co
MO
,0
EM
N
olo xi- r."
GND
in ohm. 1/4W. MUTE
GND1
(FM)
a
(FM)c >
0
u,w
tRv-I ,
FM SIGNAL ROUTE
CV
N
CV
N
+12V
N
0
0
0
0 ...
Service Manual - Page 10
...;444
P
C227 Op
2.2/ 0 0222
41/50 0226 ,1„.
8
R208
R210
\
5. Assy, TRANS Assy, REG Assy and
POWER SW.
ASsy (for SX - 255RZYPWXJ models.
Ex
2561145-T
6334 $ 3.9 0 2.7
2552705FT 0302
15 TO
2521145-T 0305
A
. •
R354 0 N
47
(i) ffi
/414 ...O 5. . ]
-40 G0 a 00O
R2 05 yyµµ
k
R203 N .6
14-1 2 . 2V(.. SX-255R, SX-205
• MOTHER Assy (2/2), SP SW.
Service Manual - Page 12
sn.,
ovzrad, 0
C3ee
CN2
KPE9
to% og,
• 6. ICI T
01124 50 2' 0,
ozo-o
O 0
0
ern
00246
°Q
?1-- - o R-'538
-81337
0.w0
0
0 , R536 0 -nn-0
R.. . ows
0
00£7..
11411'cot) w(ZSPN
4 Liol loir•
0._0.467•3' w,0)0, (Ow
• ----
C385
L0£B .
600`i1-0 0
0
(..11
o01
'
p..L
7; 501'M9'
• r, a
O
=0
O
2 , .
4 -4
2:4420 Eco
0 w
...
Service Manual - Page 15
...C845
C847 0.047
0.047 C0.804437
SX-255R, SX-2O5
SIGNAL ROUTE
AUDIO SIGNAL ROUTE
1
SCH-6
3.Diodes
Other ...diodes (not noted) are 155252-TP
V+ SV
O
LOS r
*2
*3
*4
5 3V Ue
Di328
N Ir Ir Id
N ICC
RDS CK ROS DATA ROS OUT
L826
D829
bOi-- VOL DOWN MUTE
0828 DTA14 ES -T
DC.DETECT
W
r
W
MUTE
g m= , o w
0
ty '-
Assy (for SX-255R...
Service Manual - Page 16
...part.
ASSY -POWER SW.
CAPACITOR AUDIO FILM CAPACITOR CERAMIC CAPACITOR
CEAS470M25 CKPUYY103M16 CEAS470M25 ...5.62k,(2 562 x10' = 5621
RN1/4PCMDD F
Parts List for SX-255R/KUXJ
Mark No. Therefore, when replacing,
be longer than usual or...Spare Parts List.
• The A, markfound on some component parts indicates the importance of the safetyfactor of identical designation....
Service Manual - Page 17
...C611 C612
C631, C632 C633, C634
ELECT. CAPACITOR
CEAS2R2M50 CGCYX104M16 CEAS4R7M50 CEANP4R7M50 CEAS470M25
AUDIO FILM CAPACITOR CFTXA153J50 AUDIO FILM CAPACITOR CMA823J50
RESISTORS
VR601
VARIABLE RESISTOR (100k-A5 X2 D) Other Resistors
...V826 X826
REMOTE RECEIVER UNIT FL TUBE CERAMIC RESONATOR (7.7MHz)
GP1U58X AAV7026 ASS1055
VOL. Description
Parts No. SX-255R, SX-205
Mark No. CAPACITOR ELECT...
Service Manual - Page 20
SX-255R, SX-205
8.
Pin Name I/O
Description
1 PE3/INT3 I External interrupt request input terminal
2 PE4/RMC I Remote control reception circuit...information and may not correspond exactly to that shown in the schematic diagrams.
• PDG172A (IC826: FL AND UCOM ASSY)
• Receiver Control Micro-computer
• Block Diagram
ANO to ANT I 8
TO to TT , 0
TVS 28 y• 8
115/S 2t SO...
Service Manual - Page 23
... parts of the part. SX-255R/
YPWXJ
SX-205/ KUXJ
AWK7254 AWZ8086 AWZ8090...component parts indicates the importance of the safetyfactor of identical designation.
• Parts marked by " 0" are 3 effective digits (such as shown in high precision metalfilm resistors).
5.62k II -0- 562 x10 = 5621
RAT1/4PCOEMMF
CONTRAST OF MISCELLANEOUS PARTS
SX-255R/KCXJ, YPWXJ, SX-205/KUXJ, SDXJ and SX-255R...
Service Manual - Page 24
... on the " 3. Refer to " PCB PARTS LIST". SX-255R/ YPWXJ
SX-205/ KUXJ
SX-205/ SDXJ
Remarks
NSP NSP
68 Packing Case
AHD7265
57 ...Receiver Unit
RD1/4PU473J RD1/4PU473J
Not Used GP1U58X
Not Used RD1/4PU473J
Not Used GP1U58X
RD1/4PU473J Not Used
RD1/4PU473J Not Used
Note *2.
SX-255R, SX-205
Mark No.
SCHEMATIC AND PCB CONNECTION DIAGRAMS".
Symbol & Description
SX-255R1 SX-255R...
Service Manual - Page 26
SX-255R, SX-205
TRANS Assy
AWZ8378 and AWZ8097 have the same construction except for SX-205/SDXJ)
OTHERS
J24 J25 J26 J27 J28
LEAD WIRE UNIT LEAD ...MONO STEREO Signal-to the Federal Trade Commission's
Trade Regulation rule on Power Output Claims for
Amplifiers.
**
Measured By Audio Spectrum Analyzer. and Canadian models
AC 120 Volts, 60 Hz
Multi-voltage model
AC 110V/120V - 127V
/220V/...
Service Manual - Page 27
... of the connected equipment should not exceed 100 W (0.8 A MAX). The equipment should be disconnected by the receiver's POWER switch. when on and off by removing the mains plug from a turntable. CONTROL
(oTrr
Receiver
Pioneer component bearing the El mark. SX-255R, SX-205
12.
Electrical power consumption of a turntable.
and Canadian models] SWITCHED 100 W (0.8 A) MAX
Power...
Service Manual - Page 28
...
36 C) SUPER BASS button
When this button is initially turned ON, muting will be applied to prevent sound from a component connected to the LD/DVD jacks. [CD] Press when listening to .../DVD] Press when listening to the OFF position when only the
headphones are in use .
SX-255R, SX-205
• The illustration shows the SX-255R. 0
OD Pi
4
5
O 06
- . 04"
® POWER STANDBY/ON switch...
Service Manual - Page 29
...received. O TUNED indicator Lights up when a stereo FM broadcast is selected with weak broadcast signals, the input signal may be automatically reproduced in the direction of increasing
frequency. -: The opposite operation to the right, low-frequency tones are emphasized. to Remote sensor window (SX-255R... in order in the center position. SX-255R, SX-205
C) MPX MODE selector button Use...
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