PIONEER XR-A550MD/DBDXJ Service Manual

Cover page of PIONEER XR-A550MD/DBDXJ Service Manual

Service Manual for PIONEER XR-A550MD/DBDXJ, downloadable as a PDF file.

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ORDER NO.
PIONEER ELECTRONIC CORPORATION 4-1, Meguro 1-Chome, Meguro-ku, Tokyo 153-8654, Japan
PIONEER ELECTRONICS SERVICE, INC. P.O. Box 1760, Long Beach, CA 90801-1760, U.S.A.
PIONEER ELECTRONIC (EUROPE) N.V. Haven 1087, Keetberglaan 1, 9120 Melsele, Belgium
PIONEER ELECTRONICS ASIACENTRE PTE. LTD. 253 Alexandra Road, #04-01, Singapore 159936
PIONEER ELECTRONIC CORPORATION 1999
c
XR-A550MD
RRV2107
1. SAFETY INFORMATION ...................................... 2
2. EXPLODED VIEWS AND PARTS LIST ................ 3
3. SCHEMATIC DIAGRAM ..................................... 16
4. PCB CONNECTION DIAGRAM .......................... 42
5. PCB PARTS LIST ............................................... 62
6. ADJUSTMENT .................................................... 70
CONTENTS
7. GENERAL INFORMATION ................................ 92
7.1 PARTS .......................................................... 92
7.1.1 IC ........................................................... 92
7.1.2 DISPLAY ................................................ 94
7.2 DIAGNOSIS .................................................. 96
7.2.1 DISASSEMBLY ..................................... 96
7.2.2 DETAILS OF ERROR DISPLAY ......... 102
7.2.3 TROUBLESHOOTING ........................ 104
7.3 BLOCK DIAGRAM ...................................... 109
8. PANEL FACILITIES AND SPECIFICATIONS .. 112
T ­ IZE MAR. 1999 Printed in Japan
Type
Model
Power Requirement
The Voltage can be converted by
XR-A550MD
the following method.
KUCXJ
AC120V
DBDXJ
AC110-127V/220-230V/240V
With the voltage selector
THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S).
COMPACT MINI COMPONENT
EJECT
ASES
3
STEREO CASSETTE DECK
FULL LOGIC AUTO REVERSE
REC/PLAY
FREQ/
STATION
NR
ON/OFF
MD
REC/STOP
TAPE
REC/STOP
MD
DISP
/CHARA
MENU
DELETE
MINIDISC
STEREO CD MD CASSETTE DECK RECEIVER XR-A550MD
background image
ORDER NO.
PIONEER ELECTRONIC CORPORATION 4-1, Meguro 1-Chome, Meguro-ku, Tokyo 153-8654, Japan
PIONEER ELECTRONICS SERVICE, INC. P.O. Box 1760, Long Beach, CA 90801-1760, U.S.A.
PIONEER ELECTRONIC (EUROPE) N.V. Haven 1087, Keetberglaan 1, 9120 Melsele, Belgium
PIONEER ELECTRONICS ASIACENTRE PTE. LTD. 253 Alexandra Road, #04-01, Singapore 159936
PIONEER ELECTRONIC CORPORATION 1999
c
XR-A550MD
RRV2107
1. SAFETY INFORMATION ...................................... 2
2. EXPLODED VIEWS AND PARTS LIST ................ 3
3. SCHEMATIC DIAGRAM ..................................... 16
4. PCB CONNECTION DIAGRAM .......................... 42
5. PCB PARTS LIST ............................................... 62
6. ADJUSTMENT .................................................... 70
CONTENTS
7. GENERAL INFORMATION ................................ 92
7.1 PARTS .......................................................... 92
7.1.1 IC ........................................................... 92
7.1.2 DISPLAY ................................................ 94
7.2 DIAGNOSIS .................................................. 96
7.2.1 DISASSEMBLY ..................................... 96
7.2.2 DETAILS OF ERROR DISPLAY ......... 102
7.2.3 TROUBLESHOOTING ........................ 104
7.3 BLOCK DIAGRAM ...................................... 109
8. PANEL FACILITIES AND SPECIFICATIONS .. 112
T ­ IZE MAR. 1999 Printed in Japan
Type
Model
Power Requirement
The Voltage can be converted by
XR-A550MD
the following method.
KUCXJ
AC120V
DBDXJ
AC110-127V/220-230V/240V
With the voltage selector
THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S).
COMPACT MINI COMPONENT
EJECT
ASES
3
STEREO CASSETTE DECK
FULL LOGIC AUTO REVERSE
REC/PLAY
FREQ/
STATION
NR
ON/OFF
MD
REC/STOP
TAPE
REC/STOP
MD
DISP
/CHARA
MENU
DELETE
MINIDISC
STEREO CD MD CASSETTE DECK RECEIVER XR-A550MD
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2
XR-A550MD
1. SAFETY INFORMATION
This service manual is intended for qualified service technicians ; it is not meant for the casual do-it-
yourselfer. Qualified technicians have the necessary test equipment and tools, and have been trained
to properly and safely repair complex products such as those covered by this manual.
Improperly performed repairs can adversely affect the safety and reliability of the product and may
void the warranty. If you are not qualified to perform the repair of this product properly and safely, you
should not risk trying to do so and refer the repair to a qualified service technician.
WARNING
This product contains lead in solder and certain electrical parts contain chemicals which are known to the state of California to cause
cancer, birth defects or other reproductive harm.
Health & Safety Code Section 25249.6 ­ Proposition 65
NOTICE
(FOR CANADIAN MODEL ONLY)
Fuse symbols
(fast operating fuse) and/or
(slow operating fuse) on PCB indicate that replacement parts must
be of identical designation.
REMARQUE
(POUR MODÈLE CANADIEN SEULEMENT)
Les symboles de fusible
(fusible de type rapide) et/ou
(fusible de type lent) sur CCI indiquent que les pièces
de remplacement doivent avoir la même désignation.
ANY MEASUREMENTS NOT WITHIN THE LIMITS
OUTLINED ABOVE ARE INDICATIVE OF A POTENTIAL
SHOCK HAZARD AND MUST BE CORRECTED BEFORE
RETURNING THE APPLIANCE TO THE CUSTOMER.
2. PRODUCT SAFETY NOTICE
Many electrical and mechanical parts in the appliance
have special safety related characteristics. These are
often not evident from visual inspection nor the protection
afforded by them necessarily can be obtained by using
replacement components rated for voltage, wattage, etc.
Replacement parts which have these special safety
characteristics are identified in this Service Manual.
Electrical components having such features are identified
by marking with a
on the schematics and on the parts list
in this Service Manual.
The use of a substitute replacement component which does
not have the same safety characteristics as the PIONEER
recommended replacement one, shown in the parts list in
this Service Manual, may create shock, fire, or other hazards.
Product Safety is continuously under review and new
instructions are issued from time to time. For the latest
information, always consult the current PIONEER Service
Manual. A subscription to, or additional copies of, PIONEER
Service Manual may be obtained at a nominal charge from
PIONEER.
1. SAFETY PRECAUTIONS
The following check should be performed for the
continued protection of the customer and service
technician.
LEAKAGE CURRENT CHECK
Measure leakage current to a known earth ground (water
pipe, conduit, etc.) by connecting a leakage current tester
such as Simpson Model 229-2 or equivalent between the
earth ground and all exposed metal parts of the appliance
(input/output terminals, screwheads, metal overlays, control
shaft, etc.). Plug the AC line cord of the appliance directly
into a 120V AC 60Hz outlet and turn the AC power switch
on. Any current measured must not exceed 0.5mA.
(FOR USA MODEL ONLY)
Leakage
current
tester
Reading should
not be above
0.5mA
Device
under
test
Test all
exposed metal
surfaces
Also test with
plug reversed
(Using AC adapter
plug as required)
Earth
ground
AC Leakage Test
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3
XR-A550MD
1
FM Antenna
ADH7004
2
Operating Instructions
See Contrast table (2)
(English/French)
3
AM Loop Antenna
XTB3001
4
Remote Control Unit
XZN3046
(CU-XR054)
5
Battery Cover
AZA7204
NSP
6
Dry Cell Battery (R6P, AA)
VEM-013
7
Catalog Bag
Z21-038
(0.03
× 230 × 340)
8
Front Pad
XHA3003
(1) PACKING PARTS LIST
9
Rear Pad
XHA3004
10
Packing Case
See Contrast table (2)
11
Packing Sheet
AHG7049
NSP
12
Warranty Card
See Contrast table (2)
13
Power Cord
See Contrast table (2)
NSP
14
Polyethylene Bag
AHG7033
15
Operating Instructions
See Contrast table (2)
(Chinese/portuguese)
16
Operating Instructions
See Contrast table (2)
(English/Spanish)
2.1 PACKING
Mark No.
Description
Part No.
Mark No.
Description
Part No.
VO
L
KA
RA
OK
E
SF
C
DIS
C
DIS
C
DIS
C
C
LE
AR
ST
AT
IO
N
RE
M
OT
E
CO
NT
RO
L
UN
IT
CU
-X
R0
25
M
O
N
O
BA
N
D
PG
M
RE
PE
AT
RA
ND
O
M
AU
X
P.B
AS
S
DIS
PL
AY
SL
EE
P
PO
W
ER
6
1
3
7
8(1/2)
11
9(1/2)
13
2
15
DBDXJ
Type Only
KUCXJ
Type Only
KUCXJ
Type Only
16
12
4
9(2/2)
10
8(2/2)
5
14
2. EXPLODED VIEWS AND PARTS LIST
NOTES:
· Parts marked by "NSP" and
can not be supplied.
· The mark found on some component parts indicates the importance of the safety factor of the part.
Therefore, when replacing, be sure to use parts of identical designation.
· Screws adjacent to mark on the product are used for disassembly.
Mark No.
Symbol and Description
Part No.
Remarks
KUCXJ Type
DBDXJ Type
2
Operating Instructions (English/French)
XRE3021
Not used
10
Packing Case
XHD3078
XHD3079
NSP
12
Warranty Card
ARY7023
Not used
13
Power Cord
ADG7022
ADG1158
15
Operating Instructions (Chinese/Portuguese)
Not used
XRC3011
16
Operating Instructions (English/Spanish)
Not used
XRE3022
(2) CONTRAST TABLE
XR-A550MD/KUCXJ and DBDXJ are constructed the same except for the following :
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4
XR-A550MD
2.2 EXTERIOR (1/2)
13
3
19
9
5
4
6
10
2
12
Note : Attatch on the same numbers
× three
12
Refer to
"2.5 $M MECHA CD DIGITAL ASSY
7
20
8
9
9
14
KUCXJ Type
Only
11
11
15
11
15
1
19
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5
XR-A550MD
(1) EXTERIOR (1/2) PARTS LIST
1
22P F.F.C/30V
XDD3018
NSP
2
$M MECHA CD DIGITAL Assy
XXA3006
3
Volume Knob
XAA3005
4
FL Cover A
See Contrast table (2)
5
FL Cover C
XAK3071
6
Tray Cap
XAK3075
7
Display Panel
See Contrast table (2)
8
Bonnet Case
XZN3001
9
Screw
BPZ30P100FZK
10
Pioneer Badge
XAM3001
11
Screw
VBT30P080FZK
12
Disc Label
XAX3127
13
Jog Knob Assy
XXG3023
14
65 Label
See Contrast table (2)
15
Screw
BCZ30P080FZK
16
· · · · ·
17
· · · · ·
18
· · · · ·
19
Cushion Rubber
XEB3002
NSP
20
Tray Cap Assy
XXG3031
Mark No.
Description
Part No.
Mark No.
Symbol and Description
Part No.
Remarks
KUCXJ Type
DBDXJ Type
4
FL Cover A
XAK3093
XAK3026
7
Display Panel
XAK3057
XAK3064
14
65 Label
ARW7050
Not used
(2) CONTRAST TABLE
XR-A550MD/KUCXJ and DBDXJ are constructed the same except for the following :

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