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 bill16659 on January 18th, 2019
Pioneer Sx 255r Will Only Stay On Standby
Pioneer SX 255R will only stay on standby but will not power up to start and no display on the screen
Current Answers
Answer #1: Posted by TommyKervz on January 20th, 2019 4:05 AM
TommyKervz
Member since:
January 10th, 2013 Points: 17,776,803
Member since:
January 10th, 2013 Points: 17,776,803
Unplug the power cord for at least 3 minutes and try it again. If still stays on standby then service required.
Related Pioneer SX-255R Manual Pages
Service Manual - Page 1
KUXJ
0
0
AC120V
KCXJ
0
- ADJUSTMENTS
26
3
8. FOR SX-255R/KCXJ, YPWXJ, SX-205/KUXJ
7
AND SDXJ
31
11. PANEL FACILITIES
35
PIONEER ELECTRONIC CORPORATION 4-1, Meguro 1-Chome, Meguro-ku, Tokyo 153, Japan PIONEER ELECTRONICS SERVICE INC.
Type
Model
SX-255R
SX-205
Power Requirement
The voltage can be converted by the following method. PCB PARTS LIST
23
7. Service Manual...
Service Manual - Page 2
... of a substitute replacement component which may create shock, fire, or other hazards. PRODUCT SAFETY NOTICE
Many electrical and mechanical parts in the appliance have these special safety characteristics are often not evident from time to , or additional copies of the product and may be obtained at a nominal charge from PIONEER.
2
SX-255R, SX-205
1. REMARQUE...
Service Manual - Page 3
... Rear Panel
O
4
02
0 3
0
2
3
Fig. 1
Rear Panel
4140 itt.
Remove the three screws ® fastening the MOTHER Assy,
and the two screws ® fastening the Radiator. 4. SX-255R, SX-205
2. CHECKING FOR PCB PATTERN OF MOTHER ASSY
1.
Service Manual - Page 4
... 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. Assy 44 POWER SW. Description
Parts No.
>>>> l>>>
1 FL Panel 2 Front Panel 3 Transistor (Q1) 4 Transistor (Q2) 5 Transistor (Q3)
AAK7239 AMB7331...
Service Manual - Page 5
...
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 46
50
48 4 3
52
y 42 48
03
5
19
15
50 \
SX-255R, SX-205
SX- 205/ SDXJ only
X10
SX- 205/ SDXJ only 23
Except SX- 255R...
Service Manual - Page 6
...-150-2651
M
CN9 KPE3
(AWZ8087 SX-255R/YPWXJ)
(AWZ8088 SX-205/KUXJ)
(AWZ8089 SX-205/SDXJ)
(00>SCH-3,4)
CN4 KPE15
CNS KPE1 S
Goeoi0000000m, ---ieee0000
0000
POWER SW.
KCXJ .SX-205/KUXJ ONLY AEK1 058-(T2.5A L 250V) SX-255R/YPWXJ ONLY REK1 091-(125V 3.15A) SX-205/SDXJ ONLY
MOTHER ASSY
(AWZ8°86 SX-255R/KUXJ , KCXJ)
REG ASSY
(AWZ8389...
Service Manual - Page 7
... found on some components may be sure to refer to use parts of the schematic diagram. (SCH stands for electolytic capacitors.
5. Rated power: 1/4W, 1/6W, 1/8W, 1/10W unless otherwise
noted. less otherwise noted.
4. Ratings: capacitor (µF) / voltage (V) unless otherwise noted.
Assy S876 POWER STANDBY/ON (for SX-255R) S401 POWER (for improve- SX-25SIR/YPWXJ SX-20S/SOXJ ONLY...
Service Manual - Page 9
...O •---
0
l o
(Am)
0
a
a
U N
U
GND
H 10
O LO
Ll 52 22u
-rn-1----- In
5
C1 91
R193
4 . 7/50 220
i W. • 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 CKPU
E,-- DI 21_
z
0 0
U. O
z
U
I ,
FM SIGNAL ROUTE
CV
N
CV
N
+12V
N
0
0
0
0 YX...
Service Manual - Page 10
...2502 0301
SCH-4
'YFIr."14. mark means to use for SX-205)
To MOTHER assy (1/2) To VOL. AND HP.
SX-255R, SX-205
• MOTHER Assy (2/2), SP SW. KC. R201
... yyµµ
k
R203 N .6
14-1 2 . 2V(..
"KL.r.'l MTZJ
POWER AMP
6347
1,.L 0 A
KPE9
305
220 03j1
RAA •2.2/50
2502078-T W3. Assy, TRANS Assy, REG Assy and
POWER SW. O F PLAY
REC
PLAY
LD
330 R209
01_
--1 I -12.7V(
...
Service Manual - Page 12
ows
0
00£7..
11411'cot) w(ZSPN
4 Liol loir•
0._0.467•3' w,0)0, (Ow
• ---- ICI T
01124 50 2' 0,
ozo-o
O 0
0
ern
00246
°Q
?1-- - 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
03„
IT)DLIHD 086 (LINCt.la.1 • 087 088 • 089
W Z0
(0 01° ko
0 0 08-11P00-0
3 3 0-10-400417...
Service Manual - Page 13
...CEANP TY:OFTXA
SIGNAL ROUTE 010,, AUD10 SIGNAL ROUTE
SCH 5
18
VOL.
Assy (for SX-255R)
• VOL. ASSY, FL AND UCOM ASSY AND POWER SW. To MOTHER ASSY CN5
FL AND UCOM Assy
0
OR OILY
H41
O
054
X'J ...
10601 (2/2) NJIM45580-0
+12.2V
OV
C609
4.7/50
CG1 0 4.7/50
VOL. ASSY (for SX-255R)
RWZ8094
0
0875
O
STANDBY ,,975 IND C"^x",
POWER
5871
as
STANDBY IND 0. ASSY
POWER SW.
Service Manual - Page 14
... O0 0 0
5,
0 -WO
0 0 0 0 0 0
0511
0 0 OO
0 0
elk 50
o s_Gp.40,
a n3
44
FOGD
O
w4.g17 6 0653) 6
0-v r0 C-"v
C
O
BASS
20081. For further information for SX-255R)
PWZ8094
O
0876
O
STANIDNBCY CRI-N87N5-C
POWER SW
587E
STANDBDY. t3
O
O
0
O O O
O p
051
0 W226
1842
.?) INLY0
°A,e,
81, 88
(-1,15a.
C
TREBLE
215 3 8514 18;
0 8378 0 0010
Q501 IC501 0502
VR502
VR501...
Service Manual - Page 15
... 812 AKT1019
C845 0.047 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--
STANDBY
IND
r_ m i
0
D876
BR3371XJ30A
R876
<
330
co
a
PPOWER...
Service Manual - Page 16
...).
5.62k,(2 562 x10' = 5621
RN1/4PCMDD F
Parts List for SX-255R/KUXJ
Mark No. Ex. 1 When there are 2 effective digits (any...C220 C221, C222 C223, C224 0225, C226
ELECT. CAPACITOR AUDIO FILM CAPACITOR ELECT. CAPACITOR ELECT. Description
Parts No. CAPACITOR
... markfound on some component parts indicates the importance of the safetyfactor of the part.
ASSY -POWER SW. CAPACITOR CERAMIC ...
Service Manual - Page 17
...AUDIO FILM CAPACITOR CMA823J50
RESISTORS
VR601
VARIABLE RESISTOR (100k-A5 X2 D) Other Resistors
ACX7021 RD1/4PUOODJ
OTHERS
CN3
CABLE HOLDER CONNECTOR (1213)
AKT1023 KPE12
Mark No. BARRIER ASSY
BARRIER Assy has no service part. CAPACITOR
CEAS100M50 CKPUYB151K50 CEAS100M50 CFTXA153J50 CEASR47M50
C511, C512 C826 C827
C828 C829
ELECT. CAPACITOR ELECT. POWER....
25 SX-255R, SX-205
Mark...
Service Manual - Page 18
SX-255R, SX-205
7.
R151 DC VOLTMETER
= ov ±50mV
98
Less than 10 98.0 MHz
Less than 10 dBit V
Less than 2%.
89
60
89.0 MHz
T101
Check that the DC voltage of TUNED IND.
Adjustment Title
AM SG (400Hz, 30% Mod.)
Frequency (kHz)
Level (dBµV/m)
Reception Frequency Adjustment
Display...Step No. In case out of AM -0 FM.
starts to FM BAND. • Connect the wiring as ...
Service Manual - Page 20
.... RST Imo tat
SPITED CPU CORE
ROM
16X
BYTES
PRESCALER / TIME SASE TIMER
CLOCK GEN./
a PAO to PA7
SYSTEM CONTROL
RAM 624 BYTES
c> 0
r7ta - XFAL. SX-255R, SX-205
8.
Service Manual - Page 21
...
77
PG3
No. NC terminal
Connect this terminal to the XTAL terminal.
33
Vss
-
Positive power supply terminal
73
NC
- GND terminal
34 PD0/SO
I
I
41 PD7/S7
42 PF0/S8... of power supply start-up, the
built-in power ON reset function operates
and executes " L " level output.
(Mask option)
31 EXTAL 32 XTAL
I External interrupt request input terminal
29 SX-255R SX-205
No...
Service Manual - Page 27
... to the AC OUTLET, in order to avoid overheating or fire risk. Remote control unit. Electrical power consumption of the connected equipment should not exceed 100 W. SX-255R, SX-205
12.
To the CONTROL IN jack of the Pioneer component bearing the mark.
0 CHANNEL STEP switch
(multi-voltage model only)
C) SPEAKERS terminals
A : Connect to a second set...
Service Manual - Page 28
...been connected to maintain opera- NOTE: No sound will be applied to prevent sound from a component connected to the LD/DVD jacks. [CD] Press when listening to compact disc playback with ...STANDBY position, the main power
flow is cut and the unit is switched ON, ON/OFF control can also be performed by means of the optional timer.
tor (SX-255R)
This is in the memorization of power...
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