PARTS LIST OF P.C.B. UNIT ..................................................58
8U-110004A MAIN PWB UNIT ASS'Y (N,K model) .................58
8U-110004B MAIN PWB UNIT ASS'Y (U model) ....................58
8U-110005A FRONT PWB UNIT ASS'Y (N,K model) .............63
8U-110005B FRONT PWB UNIT ASS'Y (U model) .................63
2
MARANTZ DESIGN AND SERVICE
Using superior design and selected high grade components,
Only original MARANTZ parts can insure that your
MARANTZ
MARANTZ
product will continue to perform to the specications for
company has created the ultimate in stereo sound.
which it is famous.
Parts for your
MARANTZ
equipment are generally available to our National
Marantz
Subsidiary or Agent.
ORDERING PARTS :
Parts can be ordered either by mail or by Fax.. In both cases, the correct part number has to be specied.
The following information must be supplied to eliminate delays in processing your order :
1. Complete address
2. Complete part numbers and quantities required
3. Description of parts
4. Model number for which part is required
5. Way of shipment
6. Signature : any order form or Fax. must be signed, otherwise such part order will be considered as null and void.
USA
MARANTZ AMERICA, INC
100 CORPORATE DRIVE
MAHWAH, NEW JERSEY 07430
USA
JAPAN
D&M Holdings Inc.
D&M BUILDING, 2-1 NISSHIN-CHO,
KAWASAKI-KU, KAWASAKI-SHI,
KANAGAWA, 210-8569 JAPAN
EUROPE / TRADING
D&M EUROPE B. V.
P. O. BOX 8744, BUILDING SILVERPOINT
BEEMDSTRAAT 11, 5653 MA EINDHOVEN
THE NETHERLANDS
PHONE : +31 - 40 - 2507844
FAX : +31 - 40 - 2507860
Symbol z Fire or electrical shock hazard. Only original parts should be used to replaced any part marked with symbol z .
Any other component substitution (other than original type), may increase risk of re or electrical shock hazard.
安全上の注意:
がついている部品は、安全上重要な部品です。必ず指定されている部品番号の部品を使用して下さい。
z
SHOCK, FIRE HAZARD SERVICE TEST :
CAUTION : After servicing this appliance and prior to returning to customer, measure the resistance between either primary
AC cord connector pins (with unit NOT connected to AC mains and its Power switch ON), and the face or Front Panel of
product and controls and chassis bottom.
Any resistance measurement less than 1 Megohms should cause unit to be repaired or corrected before AC power is applied,
and veried before it is return to the user/customer.
Ref. UL Standard No. 60065.
In case of difculties, do not hesitate to contact the Technical
Department at above mentioned address.
3
091105DM/DG
SAFETY PRECAUTIONS
The following items should be checked for continued protection of the customer and the service technician.
LEAKAGE CURRENT CHECK
Before returning the set to the customer, be sure to carry out either (1) a leakage current check or (2) a line to chassis
resistance check. If the leakage current exceeds 0.5 milliamps, or if the resistance from chassis to either side of the
power cord is less than 460 kohms, the set is defective.
Be sure to test for leakage current with the AC plug in both polarities, in addition, when the set's power is in each state (on,
off and standby mode), if applicable.
CAUTION
Please heed the following cautions and instructions during servicing and
inspection.
◎Heed the cautions!
Cautions which are delicate in particular for servicing
are labeled on the cabinets, the parts and the chassis,
etc. Be sure to heed these cautions and the cautions
described in the handling instructions.
◎Cautions concerning electric shock!
(1) An AC voltage is impressed on this set, so if
you touch internal metal parts when the set is
energized, you may get an electric shock. Avoid
getting an electric shock, by using an isolating
transformer and wearing gloves when servicing
while the set is energized, or by unplugging the
power cord when replacing parts, for example.
(2) There are high voltage parts inside. Handle with
extra care when the set is energized.
◎ Caution concerning disassembly and
assembly!
Through great care is taken when parts were
manufactured from sheet metal, there may be burrs
on the edges of parts. The burrs could cause injury if
ngers are moved across them in some rare cases.
Wear gloves to protect your hands.
◎Use only designated parts!
The set's parts have specic safety properties (re
resistance, voltage resistance, etc.). Be sure to use
parts which have the same properties for replacement.
The burrs have the same properties. In particular, for
the important safety parts that are indicated by the z
mark on schematic diagrams and parts lists, be sure to
use the designated parts.
◎ Be sure to mount parts and arrange the wires
as they were originally placed!
For safety seasons, some parts use tapes, tubes or
other insulating materials, and some parts are mounted
away from the surface of printed circuit boards.
Care is also taken with the positions of the wires by
arranging them and using clamps to keep them away
from heating and high voltage parts, so be sure to set
everything back as it was originally placed.
◎Make a safety check after servicing!
Check that all screws, parts and wires removed or
disconnected when servicing have been put back in
their original positions, check that no serviced parts
have deteriorate the area around. Then make an
insulation check on the external metal connectors and
between the blades of the power plug, and otherwise
check that safety is ensured.
(Insulation check procedure)
Unplug the power cord from the power outlet,
disconnect the antenna, plugs, etc., and on the power.
Using a 500V insulation resistance tester, check that
the insulation resistance value between the inplug and
the externally exposed metal parts (antenna terminal,
headphones terminal, input terminal, etc.) is 1MΩ or
greater. If it is less, the set must be inspected and
repaired.
CAUTION
Concerning important safety
parts
Many of the electric and the structural parts used in
the set have special safety properties. In most cases
these properties are difcult to distinguish by sight, and
the use of replacement parts with higher ratings (rated
power and withstand voltage) does not necessarily
guarantee that safety performance will be preserved.
Parts with safety properties are indicated as shown
below on the wiring diagrams and the parts list in this
service manual. Be sure to replace them with the parts
which have the designated part number.
(1) Schematic diagrams .......Indicated by the z mark.
(2) Parts lists .......Indicated by the z mark.
The use of parts other than the
designated parts could cause electric
shocks, res or other dangerous
situations.
4
NOTE FOR SCHEMATIC DIAGRAM
NOTE FOR PARTS LIST
WARNING:
Parts indicated by the z mark have critical characteristics. Use ONLY replacement parts recommended by the manufacturer.
CAUTION:
Before returning the set to the customer, be sure to carry out either (1) a leakage current check or (2) a line to chassis resistance check. If
the leakage current exceeds 0.5 milliamps, or if the resistance from chassis to either side of the power cord is less than 460 kohms, the set
is defective.
WARNING:
DO NOT return the set to the customer unless the problem is identied and remedied.
NOTICE:
ALL RESISTANCE VALUES IN OHM. k=1,000 OHM / M=1,000,000 OHM
ALL CAPACITANCE VALUES ARE EXPRESSED IN MICRO FARAD, UNLESS OTHERWISE INDICATED. P INDICATES MICRO-MICRO
FARAD. EACH VOLTAGE AND CURRENT ARE MEASURED AT NO SIGNAL INPUT CONDITION. CIRCUIT AND PARTS ARE SUBJECT
TO CHANGE WITHOUT PRIOR NOTICE.
NOTE FOR PARTS LIST
1.
Parts indicated by "nsp" on this table cannot be supplied.
2.
When ordering a part, make a clear distinction between "1" and "I" (i) to avoid mis-supplying.
3.
A part ordered without specifying its part number can not be supplied.
4.
Part indicated by "★" mark is not illustrated in the exploded view.
5.
General-purpose Carbon Film Resistor in the P.W.Board parts list. (Refer to the Schematic Diagram for those parts.)
6.
General-purpose Carbon Chip Resistors are not included are not included in the P.W.Board parts list.
(Refer to the Schematic Diagram for those parts.)
WARNING:
Parts indicated by the z mark have critical characteristics. Use ONLY replacement parts recommended by the manufacturer.
5
TECHNICAL SPECIFICATIONS
• RMS Power output
(20 Hz – 20 kHz simultaneous drive of both channels): 45 W x 2 (8 Ω load)
• Total harmonic distortion
(20 Hz – 20 kHz simultaneous drive of both channels, 8 Ω load):0.08 %
• Maximum allowable PHONO input level (1 kHz)
MM:100 mV
• RIAA deviation
(20 Hz – 20 kHz):±1.0 dB
• S/N (IHF-A, 8 Ω load)
PHONO (MM):83 dB (5 mV input, 1 W output)
CD, TUNER, AUX/DVD, RECORDER:102 dB (2 V input, Rated output)
• Tone control
Bass (50 Hz):±10 dB
Treble (15 kHz):±10 dB
• Power requirement:AC 230 V 50/60 Hz (N)
• Power consumption
(EN60065):150 W
• Power consumption during standby:0.2 W
• Weight:7.4 kg
60 W x 2 (4 Ω load)
AC 220 V 50 Hz (K)
AC 120 V 60 Hz (U)
DIMENSION
370
32925
440
16
90
104
14
6
CAUTIONS IN SERVICING
Initializing INTEGRATED AMPLIFIER
INTEGRATED AMPLIFIER initialization should be performed when the μcom and peripheral parts of μcom were replaced.
1. Turn off the power pressing POWER button.
2. Press POWER button while simultaneously while pressing SOURCE DIRECT buttons.
3. Check the set entered the service mode.(Refer to 31 page "SERVICE MODE".)
POWER
SOURCE DIRECT
7
DISASSEMBLY
• Disassemble in order of the arrow in the following gure.
• In the case of the re-assembling, assemble it in order of the reverse of the following ow.
• In the case of the re-assembling, observe "attention of assembling".
• If wire bundles are untied or moved to perform adjustment or replace parts etc., be sure to rearrange them neatly as
they were originally bundled or placed afterward.
Otherwise, incorrect arrangement can be a cause of noise generation.
TOP COVER
FRONT PANEL ASSY
Refer to "DISASSEMBLY
1. FRONT PANEL ASSY"
and "EXPLODED VIEW"
POWER SW PWB UNIT
(Ref. No. of EXPLODED VIEW : 14)
HEADPHONE PWB UNIT
(Ref. No. of EXPLODED VIEW : 15)
FRONT PWB UNIT
(Ref. No. of EXPLODED VIEW : 18)
MAIN & VOLUME PWB UNIT
Refer to "DISASSEMBLY
2. MAIN & VOLUME PWB UNIT"
and "EXPLODED VIEW"
VOLUME PWB UNIT
(Ref. No. of EXPLODED VIEW : 19)
MAIN PWB ASSY
(Ref. No. of EXPLODED VIEW : 25)
POWER TRANS
Refer to "DISASSEMBLY
3. POWER TRANS"
and "EXPLODED VIEW"
POWER TRANS
(Ref. No. of EXPLODED VIEW : 27)
SUB TRANS
Refer to "DISASSEMBLY
4. SUB TRANS"
and "EXPLODED VIEW"
STANDBY PWB UNIT
(Ref. No. of EXPLODED VIEW : 29)
8
About the photos used for "descriptions of the DISASSEMBLY" section
• The shooting direction of each photograph used herein is indicated on the left side of the respective photograph as
"Shooting direction: ***".
• Refer to the diagram below about the shooting direction of each photograph.
• Photographs with no shooting direction indicated were taken from the top of the set.
The viewpoint of each photograph
(Shooting direction)
Shooting direction: B
[View from the top]
1. FRONT PANEL ASSY
Front side
Shooting direction: DShooting direction: C
Shooting direction: A
Proceeding :
(1) Remove the screws.
View from bottom
View from top
TOP COVER
FRONT PANEL ASSY
→
9
(2) Remove the screws.
Shooting direction: C
(3) Cut the wire clamp band.
Shooting direction: D
cut
cut
cut
10
(4) Disconnect the connector wire. Remove the screws.
N8101
N8001
N3001
N7501
N6001
N3002
N8504
N8502
Please refer to "EXPLODED VIEW" for the disassembly method of each PWB included in FRONT PANEL ASSY.
11
2. MAIN & VOLUME PWB UNIT
Proceeding :
(1) Detach the KNOB AL CAP POINTER. Remove the screws.
Shooting direction: B
(2) Remove the screws.
TOP COVER
MAIN & VOLUME PWB UNIT
→
Shooting of photograph: A
(3) Cut the wire clamp band, then disconnect the connector wire. Remove the screws.
N6001
N8101
N8001
N3001
N7501
N3002
cut
12
3. POWER TRANS
Proceeding :
(1) Cut the wire clamp band, then disconnect the connector wire. Remove the screws.
N8101
N8001
TOP COVER
cut
POWER TRANS
→
cut
N8503
4. SUB TRANS
Proceeding :
(1) Remove the screws.
Shooting of photograph: A
(2) Disconnect the connector wire. Remove the screws.
TOP COVER
SUB TRANS
→
N8504
U model only
N8503
N8502
N8501
13
WHEN THE MICROPROCESSOR IS REPLACED WITH A NEW ONE
When the U-PRO (Microprocessor) or the Flash ROM is replaced, conrm the following.
PWB Name Ref. No.Description
FRONTU1001 TMP86FH47UGC
After replacing
A : Mask ROM (With software). No need for write-in of software to the microprocessor.
B : Flash ROM (With software). Usually, no need for write-in of software. But, when the software was updated, you should
write the new software on the microprocessor or ash ROM. Please check the software version.
C : Empty Flash ROM (Without software). You should write the software on the microprocessor or ash ROM.
Refer to "Update procedure" or "writing procedure", when you write the software.
Necessary Equipment
• Windows PC (OS: Windows 2000 or Windows XP) with Serial port.