Pioneer M-10-X Service manual
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STEREO POWER AMPLIFIER
v¿,?m
STANDBY
STANDBY/ON
POWER
OFF ON
The illustration shows the KU/CA type
REFERENCE STEREO POWER AMPLIFIER
STEREO POWER AMPLIFIER
M-10X
THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S).
Model
M-10X
KU/CA AC120V
MY AC220–230V
RemarksPower RequirementType
ORDER NO.
RRV2382
CONTENTS
1. SAFETY INFORMATION....................................2
2. EXPLODED VIEWS AND PARTS LIST .............3
3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM
.........................................................6
4. PCB CONNECTION DIAGRAM .......................12
5. PCB PARTS LIST.............................................16
6. ADJUSTMENT.................................................. 19
PIONEER 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 EUROPE NV Haven 1087, Keetberglaan 1, 9120 Melsele, Belgium
PIONEER ELECTRONICS ASIACENTRE PTE. LTD. 253 Alexandra Road, #04-01, Singapore 159936
PIONEER CORPORATION 2000
7. GENERAL INFORMATION ..............................20
7.1 IC ................................................................ 20
7.2 CIRCUIT DESCRIPTION ...........................21
8. PANEL FACILITIES AND SPECIFICATIONS
....................................................................21
T–ZZA SEPT. 2000 Printed in Japan
M-10X
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 safel y, 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 par ts 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.
(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.
Reading should
not be above
0.5 mA
Earth ground
Device
under
test
Also test with plug
reversed
(Using AC adapter
plug as required)
Leakage
current
tester
Test all exposed
metal surfaces
AC Leakage Test
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 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.
on the schematics and
2
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.
M-10X
2.1 PACKING
12
Separate
8
11
FRONT
MY type Only
4
13
KU/CA type
MY type
KU/CA type Only
Separate
9
15
(1) PACKING PARTS LIST
15
14
1
4
Mark No. Description Part No.
1 Operating Instructions
2 ....................................
3 ....................................
NSP 4 Warranty Card
5 ....................................
6 ....................................
7 ....................................
8 Side Protector L AHA7127
9 Side Protector R AHA7128
10 ....................................
11 Packing Case
NSP 12 Literature Bag AHG–117
13 Packing Sheet AHG1016
14 Remote Control Cord PDE1247
15 Power Cord
See Contrast table (2)
See Contrast table (2)
See Contrast table (2)
See Contrast table (2)
(2) CONTRAST TABLE
M-10X/KU/CA and MY are constructed the same except for the following:
Mark
No.
Symbol and Description
KU/CA type MY type
1 Operating Instructions (English) ARC7331 Not used
1 Operating Instructions Not used ARC7332
(English/French/German/Italian/
Dutch/Swedish/Spanish/Portuguese)
NSP 4 Warranty Card ARY1026 ARY7022
11 Packing Case AHD7946 AHD7947
15 Power Cord ADG7021 ADG1154
ACCESSORIES
Power cord
(ADG7021)
(For KU/CA type)
Power cord
(ADG1154)
(For MY type)
Part No.
Black
Remote Control Cord
(PDE1247)
(L= 1 m)
Remarks
Operating Instructions
(ARC7331: KU/CA type)
(ARC7332: MY type)
Warranty Card
3
M-10X
2.2 EXTERIOR
44
41
43
37
27
38
30
35
3
D
32
44
42
B
5
MY type Only
44
1
F
44
18
40
17
47
43
11
36
39
2
E
9
44
MY type Only
KU/CA type Only
KU/CA type
Only
6
26
10
16
19
26
17
45
17
23
29
49
13
51
42
39
C
4
15
15
45
48
16
50
KU/CA type
Only
23
23
15
45
24
26
23
45
39
42
42
45
42
15
15
A
7
42
42
39
31
8
15
A
15
45
20
A
12
33
33
34
33
46
14
28
26
22
21
25
29
14
28
26
4
(1) EXTERIOR SECTION PARTS LIST
M-10X
Mark No. Description Part No.
1 FRONT L Assy AWX7766
2 FRONT R Assy AWX7768
3 POWER SW Assy AWX7057
4 AC PRIMARY Assy
5 LED Assy AWX7770
6 Fuse (15A)
7 AF Assy
8 Fuse
9 Flexible Cable (J1, 21P) ADD1114
(AF CN202 – FRONT R CN601)
10 Fuse Holder
11 Power Transformer (T1)
NSP 12 Chassis ANA7048
13 Rear Panel
14 Insulator PNW2766
15 Screw ABA1018
16 Screw ABA1050
17 Screw (4×12) ABA1014
18 Lens Assy AEC7321
NSP 19 PCB Mold AMR7222
20 Barrier AEC7072
NSP 21 PCB Holder AEC7057
22 Stud Cover AEC7096
NSP 23 PCB Mold AMR1525
NSP 24 Radiator Plate L AMR7341
25 Locking Card Spacer DEC1908
See Contrast table (2)
See Contrast table (2)
See Contrast table (2)
See Contrast table (2)
See Contrast table (2)
See Contrast table (2)
See Contrast table (2)
Mark No. Description Part No.
26 Screw BBZ30P080FCC
27 PVC Cover
28 Cushion 55 PNM1316
29 Rubber Cushion AEB7004
30 Name Plate
31 65 Label
32 LED Lens PNW2019
33 Spacer ABF7004
NSP 34 Sub Flame ANG7137
35 Main Power Button
36 Bonnet Case
37 Panel Base
38 Front Panel
39 Screw
40 Trans Plate ANG7228
41 Power Button
42 Screw BBT30P080FCC
43 Screw BBZ30P060FCC
44 Screw BPZ30P080FMC
45 Washer WG40FCC
46 Screw ABA1193
47 Top Cover
48 Washer AEE7027
NSP 49 Fuse Card
NSP 50 Fuse Card
NSP 51 Fuse Caution Label
See Contrast table (2)
See Contrast table (2)
See Contrast table (2)
See Contrast table (2)
See Contrast table (2)
See Contrast table (2)
See Contrast table (2)
See Contrast table (2)
See Contrast table (2)
See Contrast table (2)
See Contrast table (2)
See Contrast table (2)
See Contrast table (2)
(2) CONTRAST TABLE
M-10X/KU/CA and MY are constructed the same except for the following:
Mark
No.
Symbol and Description
KU/CA type MY type
4 AC PRIMARY Assy AWX7771 AWX7056
6 Fuse (15A) AEK7070 Not used
7 AF Assy AWX7776 AWX7767
8 Fuse REK1085 REK1025
(6.3A/125V) (T2AL250V)
10 Fuse Holder AKR1005 Not used
11 Power Transformer (T1) ATS7298 ATS7297
13 Rear Panel ANC7982 ANC7983
27 PVC Cover AAK7845 AAK7844
30 Name Plate PAN1376 PAN1377
31 65 Label ARW7050 Not used
35 Main Power Button AAD7437 AAD7596
36 Bonnet Case ANE7185 ANE7264
37 Panel Base AMB7736 AMB7735
38 Front Panel ANB7255 ANB7252
39 Screw BBT30P080FZK BBT30P080FNI
41 Power Button AAD7436 AAD7446
47 Top Cover Not used AME7371
NSP 49 Fuse Card AAX1180 Not used
NSP 50 Fuse Card AAX7832 Not used
NSP 51 Fuse Caution Label AAX7831 Not used
Part No.
Remarks
5
1
234
M-10X
3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM
3.1 BLOCK DIAGRAM AND OVERALL SCHEMATIC DIAGRAM
A
(J4)
FRONT R ASSY
E
(AWX7768)
B
LED ASSY
(AWX7770)
(J5)
B
CN601
C
D
0.7V/50 kΩ
JA101
CN204
CN401
AF ASSY
(AWX7776: KU/CA type)
A
(AWX7767: MY type)
DIRECT ENERGY MOS POWER AMP
POWER AMP
WRLC
29dB
CN202
(J2)
R413
IC451
+19.4V
–15V
6
1234
D457–D460
5
67
8
M-10X
Note: When ordering service parts, be sure to refer to "EXPLODED VIEWS AND PARTS LIST" or "PCB PARTS LIST".
CN701
FRONT L ASSY
F
(AWX7766)
AC PRIMARY ASSY
(AWX7771: KU/CA type)
C
(AWX7056: MY type)
KU/CA type
MY type
• NOTE FOR FUSE REPLACEMENT
CAUTION -
FOR CONTINUED PROTECTION AGAINST RISK OF FIRE.
REPLACE WITH SAME TYPE AND RATINGS OF FUSE.
MY type
CN801
KU/CA type
AC POWER CORD
ADG1154
AC POWER CORD
ADG7021
A
B
CN803
KU/CA type
MY type
D
POWER SW ASSY
(AWX7057)
Description:
Power amplifier part
Revise a wide range linear circuit of A-504R
series (WRLC), and this circuitry uses
MOS-FET for power output stage without
source resistance.
Power amplifier part
Power supply unit consists of main
transformer and sub transformerfor u-COM.
Secondary side of main transformer is
divided for DIRECT ENERGY MOS AMP by
2 circuit.
C
D
250V
7
5
6
7
8
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