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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 1998
RRV2079
1. SAFETY INFORMATION ...................................... 2
2. EXPLODED VIEWS AND PARTS LIST ................ 3
3. SCHEMATIC DIAGRAM ....................................... 8
4. PCB CONNECTION DIAGRAM .......................... 22
5. PCB PARTS LIST ............................................... 30
6. ADJUSTMENT .................................................... 38
CONTENTS
7. GENERAL INFORMATION ................................. 38
7.1 PARTS ......................................................... 38
7.1.1 IC ........................................................... 38
7.1.2 DISPLAY ............................................... 46
7.2 DIAGNOSIS ................................................. 48
7.3 BLOCK DIAGRAM ....................................... 49
8. PANEL FACILITIES AND SPECIFICATIONS ..... 50
THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S).
Type
Model
VSX-D458
KUXJI
KCXJI
AC120V
AC120V
Power Requirement
Remarks
T ­ ZZK DEC. 1998 Printed in Japan
STANDBY
5-D
THEATER
DOLBY
PRO LOGIC
DSP
MODE
VIRTUAL
/SRS
VCR/
TAPE 1
TAPE 2
MONITOR
DVD/TV
DVD 5.1CH
DVD 5.1CH
LD/SAT
CD
FM/AM
PHONO
MASTER
VOLUME
MAX
MIN
CLASS
MPX MODE
MEMORY
TUNING
SELECT
SELECT
MUTING
LOUDNESS
DIRECT
SPEAKERS
FREQUENCY +
+
­
­
L
BALANCE
R
STATION
­
TONE
+
PHONES
5-CHANNEL EQUAL POWER OUTPUT
STANDBY/ON
AUDIO/VIDEO MULTI-CHANNEL RECEIVER
Nm¿Û¯.
Î
DVD 5.1CH
DOLBY SURROUND
P R O · L O G I C
AUDIO/VIDEO PRE-PROGRAMMED
REMOTE CONTROL UNIT
PRESET
RECALL
MULTI
CONTROL
Î
AUDIO/VIDEO MULTI-CHANNEL RECEIVER
VSX-D458


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VSX-D458
2
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 Cod e 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 RETURN-
ING 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.
(FOR USA MODEL ONLY)
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 60 Hz outlet and turn the AC power switch on. Any
current measured must not exceed 0.5 mA.
Device
under
test
Leakage
current
tester
Earth
ground
Reading should
not be above
0.5 mA
Also test with
plug reversed
(Using AC adapter
plug as required)
Test all
exposed metal
surfaces
AC Leakage Test


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3
VSX-D458
Mark No.
Symbol and Description
Part No.
VSX-D458
VSX-D458
Remarks
/KUXJI
/KCXJI
3
Operating Instructions (English)
ARB7178
Not used
3
Operating Instructions (English/French)
Not used
ARE7202
NSP
4
Warranty Card
ARY7023
ARY7024
2.1 PACKING
1
FM Antenna
ADH7004
2
AM Loop Antenna
ATB7009
3
Operating Instructions
See Contrast table (2)
NSP
4
Warranty Card
See Contrast table (2)
5
Remote Control Unit
AXD7207
(CU-VSX153)
(1) PACKING PARTS LIST
Mark No.
Description
Part No.
2. EXPLODED VIEWS AND PARTS LIST
NOTES:
· Parts marked by "NSP" are generally unavailable because they are not in our Master Spare Parts List.
· 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.
1
2
4
3
5
7
12
8 (1/2)
9 (1/2)
9 (2/2)
8 (2/2)
6
10
11
(2) CONTRAST TABLE
VSX-D458/KUXJI and KCXJI are constructed the same except for the following :
Mark No.
Description
Part No.
6
Battery Cover
RZN1156
NSP
7
Dry Cell Battery(R6P, AA)
VEM-013
8
Left Pad
AHA7201
9
Right Pad
AHA7202
10
Packing Sheet
AHG7010
11
Packing Case
AHD7730
12
Polyethylene Bag
Z21-038
(0.03
×230×340)


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4
VSX-D458
A
A
37
37
37
27
37
37
37
25
26
18
33
33
39
27
37
35
28
37
8
9
41
41
11
40
37
3
4
12
13
38
37
37
23
37
37
33
34
31
31
37
2
17
37
7
10
31
29
37
22
30
30
1
37
KCXJI
Types
only
21
37
38
16
15
19
36
35
5
37
38
6
42
Refer to
"2.3 FRONT PANEL SECTION".
37
37
37
37
37
37
37
37
37
32
14
from No.15
Input Button
(Page 6)
from No.15
Input Button
(Page 6)
2.2 EXTERIOR SECTION


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5
VSX-D458
1
INPUT Assy
AWX7091
2
R/C SP & 6CH Assy
AWX7092
3
REG Assy
AWX7093
NSP
4
REG CONNECTION Assy
AWX7157
NSP
5
PS CONNECTION Assy
AWX7158
6
POWER SUPPLY Assy
See Contrast table (2)
7
VIDEO Assy
AWX7098
8
TRANS Assy
AWX7099
9
PRIMARY Assy
AWX7160
10
FM/AM TUNER Unit
AXX7046
11
Power Transformer
See Contrast table (2)
(T1 : AC120V)
12
Fuse (FU2 : 6.3A)
VEK1026
13
Fuse (FU1 : 10A)
REK1087
14
AC Power Cord
PDG1064
15
Flat Flexible Cable (13P)
ADD7086
16
Flat Flexible Cable (22P)
ADD7087
17
Flat Flexible Cable (12P)
ADD7090
NSP
18
Under Base
ANA7066
19
Rear Panel
See Contrast table (2)
(1) EXTERIOR SECTION PARTS LIST
Mark No.
Description
Part No.
Mark No.
Description
Part No.
20
······
21
Heat Sink 45 Holder R
ANG7174
22
Heat Sink 45 Holder F
ANG7175
NSP
23
Heat Sink 45
ANH7070
24
······
25
Insulator
AMR7198
26
Foot Assy
REC1263
27
Heat Sink 45 Holder B
ANG7176
28
Trans Frame
ANG7183
29
Heat Sink S 45 Holder
ANG7185
30
Screw
ABA7043
31
PCB Mold
AMR2533
32
Cord Stopper
CM-22C
NSP
33
Card Spacer
DEC1770
NSP
34
PCB Holder
PNW2100
NSP
35
Binder
RNE1277
36
Bonnet Case
AZN7711
37
Screw
BBZ30P080FZK
38
Screw
BBZ30P200FMC
39
Screw
BBZ30P080FMC
40
Spacer
AEB7118
41
Screw
ABA7044
42
Fuse (FU4 : 10A)
See Contrast table (2)
(2) CONTRAST TABLE
VSX-D458/KUXJI and KCXJI are constructed the same except for the following :
Mark No.
Symbol and Description
Part No.
VSX-D458
VSX-D458
Remarks
/KUXJI
/KCXJI
6
POWER SUPPLY Assy
AWX7096
AWX7194
11
Power Transformer (T1 : AC120V)
ATS7207
ATS7208
19
Rear Panel
ANC7795
ANC7796
42
Fuse (FU4 : 10A)
Not used
REK1087