Marantz IR3000RX User manual

Wireless System
IR3000
333W855010 MIT
First Issue 2001.07
TABLE OF CONTENTS
SECTION PAGE
1. TECHNICAL SPECIFICATIONS .................................................................................................................. 1
2. IC DATA ........................................................................................................................................................ 1
3. WIRING DIAGRAM ...................................................................................................................................... 3
4. BLOCK DIAGRAM ....................................................................................................................................... 5
5. SCHEMATIC DIAGRAM............................................................................................................................... 9
6. PARTS LOCATION..................................................................................................................................... 15
7. EXPLODED VIEW AND PARTS LIST........................................................................................................ 20
8. ADJUSTMENT ........................................................................................................................................... 22
9. ELECTRICAL PARTS LIST........................................................................................................................ 24
IR3000 /F1S
R
IR3000
Printed in Japan
Please use this service manual with referring to the user guide ( D.F.U. ) without fail.
Service
Manual
STAND BY(RED)STAND BY(RED)
IR3000TXIR3000RX(L ch) IR3000RX(R ch)

MARANTZ DESIGN AND SERVICE
Using superior design and selected high grade components, MARANTZ company has created the ultimate in stereo sound.
Only original MARANTZ parts can insure that your MARANTZ product will continue to perform to the specifications for 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 specified.
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.
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
verified before it is return to the user/customer.
Ref. UL Standard No. 1492.
In case of difficulties, do not hesitate to contact the Technical
Department at above mentioned address.
010620MIT
USA
MARANTZ AMERICA, INC
MARANTZ AMERICA, INC.
1100 MAPLEWOOD DRIVE
ITASCA, IL. 60143
USA
PHONE : 630 - 741 - 0300
FAX : 630 - 741 - 0301
BRAZIL
PHILIPS DA AMAZONIA IND. ELET. ITDA
CENTRO DE INFORMACOES AO
CEP 04698-970
SAO PAULO, SP, BRAZIL
PHONE : 0800 - 123123(Discagem Direta Gratuita)
FAX : [phone]
JAPAN Technical
MARANTZ JAPAN, INC.
35- 1, 7- CHOME, SAGAMIONO
SAGAMIHARA - SHI, KANAGAWA
JAPAN 228-8505
PHONE : [phone]
FAX : [phone]
EUROPE / TRADING
MARANTZ EUROPE B.V.
P.O.BOX 80002, BUILDING SFF2
5600 JB EINDHOVEN
THE NETHERLANDS
PHONE : +31 - 40 - 2732241
FAX : +31 - 40 - 2735578
TECHNICAL AUDIO GROUP PTY, LTD
558 DARLING STREET,
BALMAIN, NSW 2041,
AUSTRALIA
PHONE : 61 - 2 - 9810 - 5300
FAX : 61 - 2 - 9810 - 5355
CANADA
LENBROOK INDUSTRIES LIMITED
633 GRANITE COURT,
PICKERING, ONTARIO L1W 3K1
CANADA
PHONE : 905 - 831 - 6333
FAX : 905 - 831 - 6936
AUSTRALIA
QualiFi Pty Ltd,
24 LIONEL ROAD,
MT. WAVERLEY VIC 3149
AUSTRALIA
PHONE : +61 - (0)3 - 9543 - 1522
FAX : +61 - (0)3 - 9543 - 3677
NEW ZEALAND
WILDASH AUDIO SYSTEMS NZ
14 MALVERN ROAD MT ALBERT
AUCKLAND NEW ZEALAND
PHONE : +64 - 9 - 8451958
FAX : +64 - 9 - 8463554
THAILAND
MRZ STANDARD CO.,LTD
746 - 754 MAHACHAI ROAD.,
WANGBURAPAPIROM, PHRANAKORN,
BANGKOK, 10200 THAILAND
PHONE : +66 - 2 - 222 9181
FAX : +66 - 2 - 224 6795
TAIWAN
PAI- YUING CO., LTD.
6 TH FL NO, 148 SUNG KIANG ROAD,
TAIPEI, 10429, TAIWAN R.O.C.
PHONE : +886 - 2 - 25221304
FAX : +886 - 2 - 25630415
MALAYSIA
WO KEE HONG ELECTRONICS SDN. BHD.
SUITE 8.1, LEVEL 8, MENARA GENESIS,
NO. 33, JALAN SULTAN ISMAIL,
50250 KUALA LUMPUR, MALAYSIA
PHONE : +60 3 - 2457677
FAX : +60 3 - 2458180
AMERICAS
SUPERSCOPE TECHNOLOGIES, INC.
MARANTZ PROFESSIONAL PRODUCTS
2640 WHITE OAK CIRCLE, SUITE A
AURORA, ILLINOIS 60504 USA
PHONE : 630 - 820 - 4800
FAX : 630 - 820 - 8103
AUSTRALIA
KOREA
MK ENTERPRISES LTD.
ROOM 604/605, ELECTRO-OFFICETEL, 16-58,
3GA, HANGANG-RO, YONGSAN-KU, SEOUL
KOREA
PHONE : +822 - 3232 - 155
FAX : +822 - 3232 - 154
SINGAPORE
WO KEE HONG DISTRIBUTION PTE LTD
130 JOO SENG ROAD
#03-02 OLIVINE BUILDING
SINGAPORE 368357
PHONE : [phone]
FAX : [phone]

1
1.TECHNICAL SPECIFICATIONS
2. IC DATA

2

3 4
3. BLOCK DIAGRAM

5 6
4. WIRING DIAGRAM

7 8

9 10
5. SCHEMATIC DIAGRAM
IR3000RX (L CH)

11 12
IR3000RX (R CH)

13 14
IR3000TX

15
6. PARTS LOCATION
Q502 Q503 IC52
Q601
Q601 Q510 IC52 IC61 Q602 IC11
Q605
IC52
IC61
Q601
IC52
IC61
TX PCB

16
RX LCH PCB
Q504 Q505
Q603 Q604
IC32
TX PCB

17
IC31
Q301 - Q304
IC36 IC35 IC34
Q311 Q309 IC34
Q313 Q312 Q310 Q308 Q307 Q305 Q306
RX LCH PCB

18
RX RCH PCB
IC42
RX LCH PCB

19
IC46 IC45 IC44
Q411 Q409 IC44
Q413 Q412 Q410 Q408 Q407 Q405 Q406
IC41
Q401 - Q404
RX RCH PCB

20
7. EXPLODED VIEW AND PARTS LIST
IR3000TX
S22
x2
S21
x2
21
22
23
S21
x2
S21
x3
POS.
NO
VERS.
COLOR DESCRIPTION PART NO.
(MJI)
MECHANICAL/ ELECTRICAL
PART for IR3000TX
(Transmitter)
21
KGR1A232M7K107 FRONT ORNAMENT 333W064010
22 KGU1A258A19Z DOME FILTER 333W053010
23
KGP1A019M7K107 BACK COVER 333W064020
S21 KTB26+8GFN SCREW nsp
S22 KTS26+8JFN SCREW nsp
NOTE : "nsp" PART IS LISTED FOR REFERENCE ONLY, MARANTZ WILL NOT SUPPLY THESE PARTS.

21
IR3000RX
marantz
10
1
2
S3
5
3
8
S2 x2 x2
S1 x3
x2
x3
S3
8x2
47
6
S4
S5 x4
S4 x3
x2
9
S3 x2
S6
x2
S7
POS.
NO
VERS.
COLOR DESCRIPTION PART NO.
(MJI)
MECHANICAL/ ELECTRICAL
PART for IR3000RX
(Receiver Rch and Lch)
1
KGW1A312M7ZK107 FRONT PANEL 333W064030
2 KGU1A259A19Z RX FILTER 333W053020
3 KUA1A197Z MAIN CHASSIS nsp
4 KLT5N024ZT TRANS POWER *TS001470R
5
KWZIR3000SW31 POWER SWITCH ASS'Y *ZZ001740R
6 KHR1A028 BUSHING AC CORD 400K259010
7 BJA2J049Z CORD POWER JAPAN
(100V 7A)
*YC000520R
8 KHG1A188 FOOT 333W057010
9 KKC1A119K111 TOP COVER 333W257010
10 KGB1A085G MARANTZ BADGE 333W251010
S1 KTB26+8GFN SCREW nsp
S2 KTS3+8JFN SCREW nsp
S3 KTW3+8J SCREW nsp
S4 KTBD3+8JFN SCREW nsp
S5 KTB4+6F SCREW nsp
S6 KTB3+8JFZ SCREW nsp
S7 KTB3+10GFZ SCREW nsp
POS.
NO
VERS.
COLOR DESCRIPTION PART NO.
(MJI)
PARKING
Accessories for IR3000
A1 KWX1A031 CORD SPEAKER nsp
A2 KWZIR3000BN11 WIRE ASS'Y for IR3000TX *ZD000390R
A3 KJS3F001Z AC ADAPTOR AD90143A *AA000020R
A4 KMD1A439K111 RX BRACKET( FOR IR3000RX) 333W160010
A5 KSB5+10N SCREW FOR RX BRACKET
M5mm x 10mm
51100510E9
A6
KMH1A129M7K107 TX BASE(STAND FOR
IR3000TX TRANSMITTER)
333W128010
A7 KHG1A188 FOOT( FOR TX BASE) 333W057010
A8 KQX1A687Z USER GUIDE 333W851110
NOTE : "nsp" PART IS LISTED FOR REFERENCE ONLY, MARANTZ WILL NOT SUPPLY THESE PARTS.
A2
A1 x2
A6
A7 x4
A4
A3

22
RX RCH ADJUST METHODS
1.Setting
Millivolt ammeter
S.S.G
4.8000 MHz
75 kHz (mod)
60 dB (EMF)
Connection
CN81, CN82
Adjust
T402, VR41
PCB
RX RCH BOARD PCB
2. Adjust
1) AC 100V connection (power on)
2) S.S.G and CN82 connection
Condition: mod 75 kHz (100 %)
EMF 60 dB
Freq’ 3.8 MHz
3) Millivolt ammeter and CN81 connection
Condition: range 50 mV
4) T402 4.8 MHz Coil Adjust
Millivolt ammeter ---> 0 mV ± 10 mV
5) S.S.G and CN82 connection
Condition: mod 75 kHz (100%)
EMF 24 dB
Freq’4.8 MHz
6) VR41 Semi volume Adjust
SPK OUT ---> MUTE ON Point
RX LCH ADJUST METHODS
1.Setting
Millivolt ammeter
S.S.G
3.8000 MHz
75 kHz (mod)
60 dB (EMF)
Connection
CN71, CN72
Adjust
T302, VR31
PCB
RX LCH BOARD PCB
2. Adjust
1) AC 100V connection (power on)
2) S.S.G and CN72 connection
Condition: mod 75 kHz (100 %)
EMF 60 dB
Freq’3.8 MHz
3) Millivolt ammeter and CN71 connection
Condition: range 50 mV
4)T302 3.8MHz Coil Adjust
Millivolt ammeter ---> 0 mV ± 10 mV
5) S.S.G and CN72 connection
Condition: mod 75 kHz (100 %)
EMF 24 dB
Freq’3.8 MHz
6) VR31 Semi volume Adjust
SPK OUT ---> MUTE ON Point
8. ADJUSTMENT

23
TX PCB ADJUST METHODS
1.Setting
Frequency counter
OOOOOOOOOMHz
Connection
Lch : J521, J510
Rch : J522, J523
Adjust
Lch : T501, Lch : T601
PCB
TX BOARD PCB
2. Adjust
1) AC adaptor connection (DC 12V)
2) Freq’ counter connection (L ch)
J521 ---> +
J522 ---> -
3) T501 3.8MHz Coil Adjust
Freq’ counter ---> 3.8 MHz ± 10 kHz
4) Freq’ counter connection (R ch)
J510 ---> +
J523 ---> -
5) T601 4.8 MHz Coil Adjust
Freq’ counter ---> 4.8 MHz ± 10 kHz

24
9. ELECTRICAL PARTS LIST
The suppliers and their type numbers of fusible resistors
are as follows;
1. KOA Corporation
Part No. (MJI) Type No. (KOA) Description
NH05 ×××140 RF25S × ×××ΩJ(±5% 1/4W)
NH05 ×××120 RF50S × ×××ΩJ(±5% 1/2W)
NH85 ×××110 RF73B2A ××××ΩJ(±5% 1/10W)
NH95 ×××140 RF73B2E ××××ΩJ(±5% 1/4W)
2. Matsushita Electronic Components Co., Ltd
Part No. (MJI) Type No. (MEC) Description
NF05 ×××140 ERD-2FCJ ×××(±5% 1/4W)
RF05 ×××140
NF02 ×××140
ERD-2FCG ×××(±2% 1/4W)
RF02 ×××140
Examples ;
Resistance value
0.1 Ω.... 001 10 Ω .... 100 1 kΩ ....102 100 kΩ.... 104
0.5 Ω.... 005 18 Ω .... 180 2.7 kΩ ....272 680 kΩ.... 684
1 Ω.... 010 100 Ω .... 101 10 kΩ ....103 1 MΩ.... 105
6.8 Ω.... 068 390 Ω .... 391 22 kΩ ....223 4.7 MΩ.... 475
ASSIGNMENT OF COMMON PARTS CODES.
RESISTORS
R : 1) GD05 × × × 140, Carbon film fixed resistor, ±5% 1/4W
R : 2) GD05 × × × 160, Carbon film fixed resistor, ±5% 1/6W
Examples ;
Resistance value
0.1 Ω.... 001 10 Ω .... 100 1 kΩ ....102 100 kΩ.... 104
0.5 Ω.... 005 18 Ω .... 180 2.7 kΩ ....272 680 kΩ.... 684
1 Ω.... 010 100 Ω .... 101 10 kΩ ....103 1 MΩ.... 105
6.8 Ω.... 068 390 Ω .... 391 22 kΩ ....223 4.7 MΩ.... 475
Note : Please distinguish 1/4W from 1/6W by the shape of parts
used actually.
CAPACITORS
C : CERAMIC CAP.
3) DD1 × ×××370, Ceramic capacitor
Disc type
Temp.coeff.P350 N1000, 50V
Examples ;
Tolerance (Capacity deviation)
±0.25 pF .... 0
±0.5 pF .... 1
±5% .... 5
Tolerance of COMMON PARTS handled here are as follows :
0.5 pF 5 pF .... ±0.25 pF
6 pF 10 pF .... ±0.5 pF
12 pF 560 pF .... ±5%
Capacity value
0.5 pF .... 005 3 pF .... 030 100 pF .... 101
1 pF .... 010 10 pF .... 100 220 pF .... 221
1.5 pF .... 015 47 pF .... 470 560 pF .... 561
C : CERAMIC CAP.
4) DK16 × × × 300, High dielectric constant ceramic
capacitor
Disc type
Temp.chara. 2B4, 50V
Examples ;
Capacity value
100 pF .... 101 1000 pF ....102 10000 pF .... 103
470 pF .... 471 2200 pF ....222
C : 5) ELECTROLY CAP. ( ), 6) FILM CAP. ( )
5) EA × × × × × ×10, Electrolytic capacitor
One-way lead type, Tolerance ±20%
Examples ;
Capacity value
0.1 µF....104 4.7 µF ....475 100 µF ....107
0.33 µF....334 10 µF ....106 330 µF ....337
1 µF....105 22 µF ....226 1100 µF ....118
2200 µF ....228
Working voltage
6.3V.... 006 25V ....025
10V ....010 35V ....035
16V ....016 50V ....050
6) DF15 × × × 350 Plastic film capacitor
DF15 × × × 310 One-way type, Mylar ±5% 50V
DF16 × × × 310 Plastic film capacitor
One-way type, Mylar ±10% 50V
Examples ;
Capacity value
0.001 µF (1000 pF) ....... 102 0.1 µF....104
0.0018 µF ........................ 182 0.56 µF .... 564
0.01 µF........................ 103 1 µF....105
0.015 µF ........................ 153
: 1) The above CODES ( R , R , C , C and
C ) are omitted on the schematic diagram in some
case.
2) On the occasion, be confirmed the common parts on
the parts list.
3) Refer to “Common Parts List”for the other common
parts (RI05, DD4, DK4).
➀
➁Capacity value
Tolerance
➃
Capacity value
Resistance value
➄Working voltage
Capacity value
➆Capacity value
NOTE
NOTE ON SAFETY FOR FUSIBLE RESISTOR :
Resistance value Resistance value
(0.1 Ω−10 kΩ)
Resistance value Resistance value
ANT. : ANTENNA BATT. : BATTERY
CAP. : CAPACITOR CER. : CERAMIC
CONN. : CONNECTING DIG. : DIGITAL
HP : HEADPHONE MIC. : MICROPHONE
µ-PRO : MICROPROCESSOR REC. : RECORDING
RES. : RESISTOR SPK : SPEAKER
SW : SWITCH TRANSF. : TRANSFORMER
TRIM. : TRIMMING TRS. : TRANSISTOR
VAR. : VARIABLE X’TAL : CRYSTAL
ABBREVIATION AND MARKS
{
{
{
{
{
{
{
{
{
{
➂
➀
➁
➂
➃
➄
➅
➆
➅
NOTE ON SAFETY :
Symbol Fire or electrical shock hazard. Only original
parts should be used to replaced any part marked with
symbol . Any other component substitution (other
than original type), may increase risk of fire or electrical
shock hazard.
NOTE ON FUSE :
Regarding to all parts of parts code FS20xxx2xx, replace
only with Wickmann-Werke GmbH, Type 372 non glass type
fuse.
010728MIT