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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. 501 Orchard Road, #10-00 Wheelock Place, Singapore 238880
PIONEER ELECTRONIC CORPORATION 1998
7. GENERAL INFORMATION .............................. 49
7.1 PARTS ....................................................... 49
7.1.1 IC ....................................................... 49
7.1.2 DISPLAY ........................................... 60
7.2 DIAGNOSIS ................................................ 61
7.2.1 DISASSEMBLY ................................. 61
7.2.2 DETAILS OF ERROR DISPLAY ....... 63
7.3 BLOCK DIAGRAM ...................................... 65
8. PANEL FACILITIES AND SPECIFICATIONS
....................................................... 66
MINIDISC RECORDER
RRV1963
MJ-D707
MJ-17D
1. SAFETY INFORMATION .................................... 2
2. EXPLODED VIEWS AND PARTS LIST ............. 4
3. SCHEMATIC DIAGRAM ................................... 12
4. PCB CONNECTION DIAGRAM ....................... 28
5. PCB PARTS LIST ............................................. 37
6. ADJUSTMENT .................................................. 41
CONTENTS
T­DZE JUNE 1998 Printed in Japan
KU
AC120V
MY
­­
AC220­230V
MY/GR/FR
­­
AC220­230V
THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S).
Model
MJ-D707
MJ-17D
Type
Power Requirement
Remarks
MINIDISC RECORDER
MJ-D707
TIMER
REC
OFF
PLAY
DISC LOADING MECHANISM
PUSH ENTER
EDIT/NO
NAME
ANALOG
COAX
OPT
0
1
2
3
4
5
6
7
8
9
10
INPUT SELECTOR
REC LEVEL
DIGITAL
NR
REPEAT
A
B
TIME SKIP
PLAY
MODE
REC
MODE
NAME
CLIP
DISPLAY
/ CHARA
STANDBY
POWER
-- OFF _ ON
SYNCHRO
REC
MIN
MAX
PHONES
LEVEL
) EJECT
$
$
!
!
#
*
&
Î
Legato Link Conversion


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MJ-D707, MJ-17D
2
1. SAFETY INFORMATION
1. SAFETY PRECAUTIONS
The following check should be performed for the
continued protection of the customer and service
technician.
ANY MEASUREMENTS NOT WITHIN THE LIMITS
OUTLINED ABOVE ARE INDICATIVE OF A PO-
TENTIAL SHOCK HAZARD AND MUST BE COR-
RECTED BEFORE RETURNING THE APPLIANCE
TO THE CUSTOMER.
2. PRODUCT SAFETY NOTICE
Many electrical and mechanical parts in the appli-
ance have special safety related characteristics. These
are often not evident from visual inspection nor the
protection afforded by them necessarily can be ob-
tained 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
ad-
ditional copies of, PIONEER Service Manual may be
obtained at a nominal charge from PIONEER.
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.
(FOR USA MODEL ONLY)
Also test with plug
reversed
(Using AC adapter
plug as required)
Device
under
test
Test all exposed
metal surfaces
Earth ground
Leakage
current
tester
Reading should
not be above
0.5 mA
AC Leakage Test
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.
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.
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


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MJ-D707, MJ-17D
3
IMPORTANT
THIS PIONEER APPARATUS CONTAINS
LASER OF CLASS 1.
SERVICING OPERATION OF THE APPARATUS
SHOULD BE DONE BY A SPECIALLY
INSTRUTED PERSON.
LASER DIODE CHARACTERISTICS
MAXIMUM OUTPUT POWER: 32 mw
WAVELENGTH: 785 nm
Laser pick-up assembly
The output power at the objective lens of this assembly is 0.73 mW.
Control method of the current through a laser diode.
The resistor R105 on the CORD MAIN UNIT ASSY (For MD
mechanism assembly) are for the limiting of current through a laser
diode.
Control method of the laser output power
The laser pick-up assembly provide the photo-diodes and APC
(Auto Power Control) circuit.
The photo-diode detect output of the laser diode then IC104 control
the APC circuit according to the signal voltage of the photo-diode via
IC101.
The Variable resistancer on the FPC in the Laser pick-up assembly
can be adjusted the output level of Laser diode to fix the rated output
level.
Laser Interlock Switch
The loading position detect switch S101 is set to " LOAD ON " (ON:
low level, OFF: high level) position, IC104 get the " LOAD " signal,
and hand the laser " LDON " signal to No. 9 terminal (LDON) of the
Laser pick-up assembly.
Then a laser diode can be lighted exept when the level of signal
"LOAD " is low.
Additional Laser Caution
LABEL CHECK
MY and MY/GR/FR types
Refer to page 42.


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MJ-D707, MJ-17D
4
RANDOM
HI-LITE
MEDLEY
FADER
REPEA
T
PGM
CHECK
CLEAR
DISP
/
CHARA
EDIT
/NO
NAME
NAME
CLIP
TIME
SKIP
ENTER
A
B
SYNCHRO
REC
REC
CURSOR
1
2
3
4
5
6
7
8
9
10/0
>
10
&
*
#
!
!
$
$
Î
MINIDISC
RECORDER
REMOTE
CONTROL
UNIT
STANDBY/
ON
MARK
ABC
DEF
GHI
JKL
MNO
PQRS
TUV
WXYZ
3
8
11 (MJ-D707/KU, MY only)
10
7
6
9
5
4
1 (1/2)
2 (1/2)
2 (2/2)
1 (2/2)
12 (MJ-D707/MY, MY/GR/FR only)
13 (MJ-D707/MY only)
14 (MJ-17D/KU only)
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.
Screw adjacent to
mark on the product are used for disassembly.
2.1 PACKING


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MJ-D707, MJ-17D
5
3
Packing Case
RHG1876
RHG1874
RHG1874
RHG1877
NSP
10
Warranty Card
ARY1044
ARY7008
ARY7008
ARY1026
11
Operating Instructions (English/Spanish)
RRE1162
RRE1162
Not used
Not used
12
Operating Instructions (French/German)
Not used
RRD1198
RRD1198
Not used
13
Operating Instructions
Not used
RRD1199
Not used
Not used
(Portuguese/Italian/Dutch/Swedish)
14
Operating Instructions (English)
Not used
Not used
Not used
RRB1185
Mark No.
Description
Part No.
(1) PACKING PARTS LIST
(2) CONTRAST TABLE
1
Protector (F)
RHA1238
2
Protector (R)
RHA1239
3
Packing Case
See Contrast table (2)
4
Sheet (750
× 600 × 0.5)
Z23­007
5
Audio Cord (L= 1m)
PDE1248
6
Remote Control Unit
RPX1131
(CU-MJ011)
7
Battery Cover
RZN1156
NSP
8
Batteries (AA/R6P)
VEM­013
9
Polyethylene Bag
Z21­038
(0.03
× 230 × 340)
NSP
10
Warranty Card
See Contrast table (2)
11
Operating Instructions
See Contrast table (2)
12
Operating Instructions
See Contrast table (2)
13
Operating Instructions
See Contrast table (2)
14
Operating Instructions
See Contrast table (2)
MJ-D707/KU, MY, MY/GR/FR and MJ-17D/KU are constructed the same except for the following:
KU
MY
MY/GR/FR
KU
Part No.
Mark
Remarks
Symbol and Description
No.
MJ-D707
MJ-17D