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2015I33-1

© 

2015.09

Model Name Using Similar Mechanism

MEX-N4100BE/N4100BT/
N4150BT

Mechanism Type

MG-101CF-188

Optical Pick-up Name

DAX-25A

•  The tuner and CD sections have no adjustments.

The service manual of the mechanism deck, used in 
this model, has been issued in a separate volume. 
Please refer to the service manual of the MG-101 
series for the mechanism deck information.

FM
Tuning range: 87.5 – 108.0 MHz
Antenna (aerial) terminal: 

External antenna (aerial) connector

Intermediate frequency: 

FM CCIR: -1,956.5 to -487.3 kHz and 

+500.0 to +2,095.4 kHz

Usable sensitivity: 8 dBf
Selectivity: 75 dB at 400 kHz
Signal-to-noise ratio: 73 dB
Separation: 50 dB at 1 kHz
Frequency response: 20 – 15,000 Hz

MW/LW
Tuning range:

(Russian model)
FM
Tuning range:
 

FM1/FM2: 87.5 – 108.0 MHz (at 50 kHz step)

 

FM3: 65 – 74 MHz (at 30kHz step)

Antenna (aerial) terminal:
 

External antenna (aerial) connector

Intermediate frequency:
 

FM CCIR: -1,956.5 to -487.3 kHz and

 

 

+500.0 to +2,095.4 kHz

 

FM OIRT: -1,815.6 to -943.7 kHz and

 

 

+996.6 to +1,776.6 kHz

Usable sensitivity: 8 dBf
Selectivity: 75 dB at 400 kHz
Signal-to-noise ratio: 73 dB
Separation: 50 dB at 1 kHz
Frequency response: 20 – 15,000 Hz

MW/LW
Tuning range:
 

MW: 531 – 1,602 kHz

 

LW: 153 – 279 kHz

Antenna (aerial) terminal:
 

External antenna (aerial) connector

Sensitivity: MW: 26 μV, LW: 50 μV

MW: 531 – 1,602 kHz
LW: 153 – 279 kHz

Antenna (aerial) terminal: 

External antenna (aerial) connector

Sensitivity:MW:26 μV,LW:50 μV    

FM
Tuning range:

87.5 – 108.0 MHz (at 50 kHz step)
87.5 – 108.0 MHz (at 100 kHz step)
87.5 – 107.9 MHz (at 200 kHz step)

FM tuning step:

50 kHz/100 kHz/200 kHz switchable

Antenna (aerial) terminal: 

External antenna (aerial) connector

Intermediate frequency: 

FM CCIR: -1,956.5 to -487.3 kHz and 

+500.0 to +2,095.4 kHz

Usable sensitivity: 8 dBf
Selectivity: 75 dB at 400 kHz
Signal-to-noise ratio: 73 dB
Separation: 50 dB at 1 kHz
Frequency response: 20 – 15,000 Hz

AM
Tuning range:

531 – 1,602 kHz (at 9 kHz step)
530 – 1,710 kHz (at 10 kHz step)

AM tuning step:

9 kHz/10 kHz switchable

Antenna (aerial) terminal: 

External antenna (aerial) connector

Sensitivity: 26 μV

Signal-to-noise ratio: 120 dB
Frequency response: 10 – 20,000 Hz
Wow and flutter: Below measurable limit
The maximum number of: (CD-R/CD-RW only)

folders (albums): 150 (including root folder)
files (tracks) and folders: 300 (may less than 300 
if folder/file names contain many characters)
displayable characters for a folder/file name: 32 
(Joliet)/64 (Romeo)

Corresponding codec: MP3 (.mp3), WMA (.wma) 

and AAC (.m4a)

Interface: USB (High-speed)
Maximum current: 1 A
The maximum number of recognizable tracks: 

10,000

Corresponding codec:

MP3 (.mp3)

Bit rate: 8 – 320 kbps (Supports VBR (Variable 

Bit Rate))

Sampling rate: 16 – 48 kHz

WMA (.wma)

Bit rate: 32 – 192 kbps (Supports VBR (Variable 

Bit Rate))

Sampling rate: 32 kHz, 44.1 kHz, 48 kHz

AAC (.m4a, .mp4)

Bit rate: 8 – 320 kbps
Sampling rate: 11.025 – 48 kHz

WAV (.wav)

Bit depth: 16 bit
Sampling rate: 44.1 kHz, 48 kHz

FLAC (.flac)

Bit depth: 16 bit, 24 bit
Sampling rate: 44.1 kHz, 48 kHz

Output: Speaker outputs
Speaker impedance: 4 – 8 ohms
Maximum power output: 55 W × 4 (at 4 ohms)

– Continued on next page –

NOTES  ON  CHIP  COMPONENT  REPLACEMENT
• 

Never reuse a disconnected chip component.

• 

Notice that the minus side of a tantalum capacitor may be dam-
aged by heat.

FLEXIBLE  CIRCUIT  BOARD  REPAIRING
• 

Keep the temperature of soldering iron around 270 °C during 
repairing.

• 

Do not touch the soldering iron on the same conductor of the 
circuit board (within 3 times).

• 

Be careful not to apply force on the conductor when soldering 
or unsoldering.

CAUTION
Use of controls or adjustments or performance of procedures 
other than those specifi ed herein may result in hazardous radia-
tion exposure.

0  OR  DOTTED  LINE  

0  ON  THE  SCHEMATIC  DIAGRAMS  AND  IN  

Windows Media is either a registered trademark or 
trademark of Microsoft Corporation in the United 
States and/or other countries.

This product is protected by certain intellectual 
property rights of Microsoft Corporation. Use or 
distribution of such technology outside of this 
product is prohibited without a license from 
Microsoft or an authorized Microsoft subsidiary.

iPhone, iPod, iPod classic, iPod nano and iPod 
touch are trademarks of Apple Inc., registered in 
the U.S. and other countries.

MPEG Layer-3 audio coding technology and patents 
licensed from Fraunhofer IIS and Thomson.

Android is a trademark of Google Inc.

libFLAC
Copyright (C) 2000-2009 Josh Coalson
Copyright (C) 2011-2013 Xiph.Org Foundation

Redistribution and use in source and binary forms, 
with or without modification, are permitted 
provided that the following conditions are met:

Redistributions of source code must retain the 
above copyright notice, this list of conditions and 
the following disclaimer.

Redistributions in binary form must reproduce 
the above copyright notice, this list of conditions 
and the following disclaimer in the 
documentation and/or other materials provided 
with the distribution.

Neither the name of the Xiph.org Foundation nor 
the names of its contributors may be used to 
endorse or promote products derived from this 
software without specific prior written 
permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT 
HOLDERS AND CONTRIBUTORS “AS IS” AND ANY 
EXPRESS OR IMPLIED WARRANTIES, INCLUDING, 
BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 
MERCHANTABILITY AND FITNESS FOR A 
PARTICULAR PURPOSE ARE DISCLAIMED. IN NO 
EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 
BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 
DAMAGES (INCLUDING, BUT NOT LIMITED TO, 
PROCUREMENT OF SUBSTITUTE GOODS OR 
SERVICES; LOSS OF USE, DATA, OR PROFITS; OR 
BUSINESS INTERRUPTION) HOWEVER CAUSED AND 
ON ANY THEORY OF LIABILITY, WHETHER IN 
CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 
NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 
OUT OF THE USE OF THIS SOFTWARE, EVEN IF 
ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

Outputs:

Audio outputs terminal (front, rear/sub 

switchable)

Power antenna (aerial)/Power amplifier control 

terminal (REM OUT)

Inputs:

Remote controller input terminal
Antenna (aerial) input terminal
AUX input jack (stereo mini jack)
USB port

Power requirements: 12 V DC car battery (negative 

ground (earth))

Rated current consumption: 10 A
Dimensions: 

Approx. 178 mm × 100 mm × 178 mm 
(7 

1

/

8

 in × 4 in × 7 

1

/

8

 in) (w/h/d)

Mounting dimensions: 

Approx. 182 mm × 111 mm × 159 mm 
(7 

1

/

4

 in × 4 

3

/

8

 in × 6 

3

/

8

 in) (w/h/d)

Mass: Approx. 1.4 kg (3 lb 2 oz)
Package contents:

Remote commander (1): RM-X211(E, Indian and Australian, 
models only)
Parts for installation and connections (1 set)

Design and specifications are subject to change 
without notice.

The laser diode in the optical pick-up block may suffer electro-
static break-down because of the potential difference generated by 
the charged electrostatic load, etc. on clothing and the human body.
During repair, pay attention to electrostatic break-down and also 
use the procedure in the printed matter which is included in the 
repair parts.
The fl exible board is easily damaged and should be handled with 
care.

NOTES  ON  LASER  DIODE  EMISSION  CHECK
Never look into the laser diode emission from right above when 
checking it for adjustment. It is feared that you will lose your sight.

If the optical pick-up block is defective, please replace the whole 
optical pick-up block.
Never turn the semi-fi xed resistor located at the side of optical 
pick-up block.

UNLEADED  SOLDER
Boards requiring use of unleaded solder are printed with the lead-
free mark (LF) indicating the solder contains no lead.
(Caution:  Some printed circuit boards may not come printed with 

the lead free mark due to their particular size)

Unleaded solder has the following characteristics.
•  Unleaded solder melts at a temperature about 40 °C higher 

than ordinary solder.

 

Ordinary soldering irons can be used but the iron tip has to be 
applied to the solder joint for a slightly longer time.

 

Soldering irons using a temperature regulator should be set to 
about 350 °C.
Caution:

 The printed pattern (copper foil) may peel away if 

the heated tip is applied for too long, so be careful!

• Strong 

viscosity

 

Unleaded solder is more viscous (sticky, less prone to fl ow) 
than ordinary solder so use caution not to let solder bridges 
occur such as on IC pins, etc.

•  Usable with ordinary solder
 

It is best to use only unleaded solder but unleaded solder may 
also be added to ordinary solder.

 .............................................   3

 ..................................................................   8

3-1. Disassembly 

Flow 

...........................................................  14

3-2.  Mini Fuse (Blade Type) (10A/32V) (FU1), Cover .........   14
3-3.  Panel Front Block ...........................................................   15
3-4.  CD Mechanism Deck (MG-101CF-188) ........................   16
3-5. MAIN 

Board 

...................................................................  17

3-6.  KEY Board Assy, Panel Front Assy ................................   18
3-7. Service 

Position 

..............................................................  19

4-1.  Block Diagram - SERVO/USB Section - ........................   20
4-2.  Block Diagram - MAIN Section - ...................................   21
4-3. Block 

Diagram 

- PANEL/POWER SUPPLY Section - ............................   22

4-4.  Printed Wiring Boards - MAIN Section (1/2) - ..............   24
4-5.  Printed Wiring Board - MAIN Section (2/2) - ................   25
4-6.  Schematic Diagram - MAIN Section (1/4) - ...................   26
4-7.  Schematic Diagram - MAIN Section (2/4) - ...................   27
4-8.  Schematic Diagram - MAIN Section (3/4) - ...................   28
4-9.  Schematic Diagram - MAIN Section (4/4) - ...................   29
4-10. Printed Wiring Board 

- KEY Board (Component Side) -...................................   30

4-11. Printed Wiring Board 

- KEY Board (Conductor Side) - ....................................   31

4-12.  Schematic Diagram - KEY Board - ................................   32

5-1. Main 

Section 

...................................................................  41

5-2.  Front Panel Section .........................................................   42

 ..............................   43

Accessories are given in the last of the electrical parts list.

Under normal conditions, the battery will last 
approximately 1 year. (The service life may be 
shorter, depending on the conditions of use.)
When the battery becomes weak, the range of the 
remote commander becomes shorter.

Danger of explosion if battery is incorrectly 
replaced. Replaced only with the same or 
equivalent type.

ˎ Keep the lithium battery out of the reach of children. 

Should the battery be swallowed, immediately 
consult a doctor.

ˎ Wipe the battery with a dry cloth to ensure a good 

contact.

+ side up

ˎ Be sure to observe the correct polarity when installing 

the battery.

ˎ Do not hold the battery with metallic tweezers, 

otherwise a short-circuit may occur.

Battery may explode if mistreated.
Do not recharge, disassemble, or dispose of in 
fire.

DESTINATION  ABBREVIATIONS
The following abbreviations for model destinations are used in this 
service manual.

• Abbreviations
 AUS : 

Australian 

model

  IND 

: Indian model

  RU 

: Russian model

NOTE  OF  REPLACING  THE  COMPLETE  MAIN  BOARD  
OR  SERIAL  FLASH (IC502)
When the complete MAIN board or serial fl ash (IC502) is re-
placed, the destination setting is necessary.

1. Destination Setting
Set destination according to the procedure below.

1-1.  Setting the Destination Code
1.  In the state of source off (the clock is displayed), enter the test 

mode by pressing the buttons in order of the [  4] t [5] t 

[PAUSE 6] (press only the [PAUSE 6] button for two seconds).

 

(Displayed characters/values in the following fi gure are ex-
ample)

2.  In the state in which the system controller version is displayed 

on the liquid crystal display (refer to following fi gure), enter 
the destination setting mode by pressing the buttons in order of 
the [

M>

 SEEK+] t [SEEK– 

.m

] t [PUSH ENTER/

MENU].

 

(Displayed characters/values in the following fi gure are ex-
ample)

3.  Input the alphanumeric character of 12 digits of “F   XXXXXX” 

displayed on the liquid crystal display, and execute the destina-
tion setting.

 

(Displayed characters/values in the following fi gure are ex-
ample)

Note: Refer to following “1-3. Entering the Destination Code” on page 5 

for operation method.

– Continued on next page –