Hitachi UR 18DSL Manual

(1) Possible use of sliding-fit type battery (14.4 or 18 V) and plug-in type battery (9.6, 12, 14.4 or 18 V) (only 18 V
batteries for use in North America)
(2) High sensitivity (due to use of a ferrite bar antenna with total length of 160 mm for AM broadcast reception
and a long rod antenna with maximum length of 920 mm for FM broadcast reception)
(3) High sound volume due to powerful speakers and bass reflex structure
(4) AUX input terminal to enable connection of a mobile music player
(5) Possible charging of mobile phones (requiring a commercially available USB charging adapter)
We aim to expand our market share and increase sales with the new radio having the features above.
[ NEW FEATURES ]
Possible use of Hitachi cordless tool batteries
(sold separately)
(only 18 V batteries for use in North America)
Highly sensitive large ferrite bar antenna 160-mm
long overall for AM radio
Highly sensitive long rod antenna up to 920-mm
long for FM radio
High sound volume due to powerful speakers
and bass reflex structure
AUX input terminal to connect a mobile music player
Possible charging of mobile phones
PRODUCT NAME
Hitachi Cordless Radio
Model UR 18DSL
MARKETING OBJECTIVE
• Listening to the radio in outdoor places, such as at building sites
APPLICATION
SELLING POINTS
LIST No. H843
Oct. 2009
SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT.
Sales Division
U

REMARK:
xFor more information about HANDLING INSTRUCTIONS, visit our website at:
http://www.hitachi-koki.com/manual_view_export/
xThroughout this TECHNICAL DATA AND SERVICE MANUAL, a symbol(s) is(are) used in the place of
company name(s) and model name(s) of our competitor(s). The symbol(s) utilized here is(are) as follows:
Competitor
Symbol Utilized
Company Name Model Name
M MAKITA BMR100

CONTENTS
Page
SELLING POINTS --------------------------------------------------------------------------------------------------------------1
SPECIFICATIONS --------------------------------------------------------------------------------------------------------------5
1. Specifications -----------------------------------------------------------------------------------------------------5
COMPARISON WITH SIMILAR PRODUCTS----------------------------------------------------------------------------6
1. Comparison of Specifications ---------------------------------------------------------------------------------6
PRECAUTIONS ON SALES PROMOTION ------------------------------------------------------------------------------7
1. Safety Instructions -----------------------------------------------------------------------------------------------7
2. Caution Plates ----------------------------------------------------------------------------------------------------7
3. Precautions on the Battery Charger and Rechargeable Battery--------------------------------------8
TROBLESHOOTING GUIDE-------------------------------------------------------------------------------------------------9
REPAIR GUIDE---------------------------------------------------------------------------------------------------------------- 12
Disassembly and Reassembly ------------------------------------------------------------------------------- 12
Checks after Reassembly -------------------------------------------------------------------------------------- 16
STANDARD REPAIR TIME (UNIT) SCHEDULES--------------------------------------------------------------------17
AssemblyDiagramforUR18DSL

-1-
Possible use of Hitachi cordless tool batteries (sold separately)
The UR 18DSL can be used with a sliding-fit type battery (14.4 or 18 V) or a plug-in type battery (9.6, 12,
14.4 or 18 V) (only 18 V batteries for use in North America).
Voltage (V)
Mount type Battery type 9.6 12 14.4 18
Sliding-fit Li-ion 
Li-ion 
Ni-MH  Plug-in
Ni-Cd 
Highly sensitive large ferrite bar antenna 160-mm long overall for
AM radio
The UR 18DSL incorporates a large ferrite bar
antenna with overall length of 160 mm for the
highly sensitive reception of AM radio waves.
About the sensitivity of AM radio reception
(1) The table below lists the AM radio reception sensitivity measured with a special instrument. Lower
values indicate higher sensitivity.
Test frequency HITACHI
UR 18DSL M
612 kHz 55 (dB/m) 53 (dB/m)
999 kHz 53 (dB/m) 51 (dB/m)
AM radio reception
sensitivity
(20 dB S/N) 1404 kHz 51 (dB/m) 50 (dB/m)
(2) The table below lists the results of an overall evaluation of AM radio reception status. For evaluation,
three items (existence of interference, degree of noise, and radio disturbance) were examined by
listening, and the evaluated radios were graded in terms of five levels.
{5: Excellent, 4: Good, 3: Average, 2: Poor, 1: Unusable}
Broadcast station A B C D E
Distance from station
(
km
)
110 107 106 8 120
Output (kW) 300 100 100 5 100
UR 18DSL 33454
Outdoor M33453
UR 18DSL 32352
Indoor M32351
=> The reception sensitivity data of the UR 18DSL is slightly inferior to that of product M. However, the
evaluation results based on listening confirm that actual reception performance of the UR 18DSL is
equivalent to that of product M.
SELLING POINTS
160mm
Ferrite bar antenna

-2-
To receive AM broadcasts better...
The UR 18DSL features a built-in an AM radio antenna.
After tuning in the desired radio broadcast, move the UR
18DSL to determine the position at which to best receive
the broadcast.
About the search function
The search function may be unable to tune in a desired broadcast due to the orientation of the UR 18DSL
or for environmental reasons. Even in such cases, you can tune in the desired broadcast by manually
adjusting the frequency on the UR 18DSL.
About the place of use
The UR 18DSL may not receive radio broadcasts well when placed in a vehicle or building. If placed inside
a building, the UR 18DSL can receive radio broadcasts better when placed near a window.
If the UR 18DSL is placed near equipment (e.g., electric appliance, fluorescent lamp, personal computer)
that produces electromagnetic noise, the sound produced by the UR 18DSL may include noise.
In such cases, move the UR 18DSL sufficiently away from the equipment so as to eliminate the noise.
Highly sensitive long rod antenna up to 920-mm long for FM radio
The UR 18DSL incorporates a long rod antenna (up to
920-mm long) to ensure high sensitivity of FM radio
reception.
About the sensitivity of FM radio reception
(1) The table below lists the FM radio reception sensitivity measured with a special instrument. Lower
values indicate higher sensitivity.
Test frequency Hitachi UR 18DSL M
78 MHz 14 (dBf) 14 (dBf)
83 MHz 11 (dBf) 14 (dBf)
FM radio reception
sensitivity
(30 dB S/N)
88 MHz 11 (dBf) 14 (dBf)
(2) The table below lists the results of an overall evaluation of FM radio reception status. For evaluation,
three items (existence of interference, degree of noise, and radio disturbance) were examined by
listening, and the evaluated radios were graded in terms of five levels.
920 mm

-3-
Broadcast station F G H
No. of receivable
broadcasts
(at grade 3 or better)
Distance from station
(km)
5.5
(short distance)
94
(middle distance)
108
(middle distance) -
Output (kW) 1 5 10 -
UR 18DSL 5 4 2 8 stations
Outdoor
M 5 3 1 4 stations
UR 18DSL 5 3 2 5 stations
Indoor
M 5 2 1 2 stations
{5: Excellent, 4: Good, 3: Average, 2: Poor, 1: Unusable}
=>The reception sensitivity data indicates that the UR 18DSL has higher sensitivity than product M. The
evaluation results based on listening indicate that the UR 18DSL and product M provide equivalent
sensitivity when used outdoors to receive broadcasts from nearby stations, but for outdoor reception of
broadcasts from stations at a middle distance (of about 100 km), the UR 18DSL provides higher
sensitivity than product M.
Similarly for indoor reception, both radios provide equivalent sensitivity for reception from nearby
stations. The UR 18DSL, however, provides higher sensitivity than product M for reception from stations
at a middle distance (of about 100 km).
* Radio reception varies depending on time zone, weather, and other environmental conditions (including
the effects of electric appliances, fluorescent lamps, and personal computers).
About the reception sensitivity of the long rod FM antenna
Suburb
Long distance
Short distance
Urban center
Reinforcing bars and
steel frames block
radio waves.
Broadcast station
Outdoor radio waves
are ver
y
intense.
Entering radio waves are fully
blocked or weakened by
buildings. walls.
Intensity of radio wave becomes
lower as the wave travels farther.
away from the station.
Use of a long antenna enables the
reception of low-intensity radio.
w
a
v
e bette
r.
Use of a long antenna enables the
reception of low-intensity radio.
wave better.

-4-
To receive FM broadcasts better...
After tuning in the desired broadcast, adjust the length,
direction and angle of the rod antenna to obtain better
reception.
While the UR 18DSL is receiving an FM stereo
broadcast, it displays " ".
If the FM stereo broadcast includes too much noise,
press the FM mode alarm button.
The sound mode is switched to monaural mode, and
the display of " " goes off.
To switch back to stereo mode, press the FM mode
alarm mode again.
About the search function
The search function may be unable to tune in a desired broadcast due to the antenna orientation or for
environmental reasons. Even in such cases, you can tune in the desired broadcast by manually adjusting
the frequency on the UR 18DSL.
About the place of use
The UR 18DSL may not receive radio broadcasts well when placed in a vehicle or building. If inside a
building, the UR 18DSL can receive radio broadcasts better when placed near a window.
If the UR 18DSL is placed near equipment (e.g., electric appliance, fluorescent lamp, personal computer)
that produces electromagnetic noise, the sound produced by the UR 18DSL may include noise.
In such cases, move the UR 18DSL sufficiently away from the equipment so as to eliminate the noise.
High sound volume due to powerful speakers and bass reflex
structure
The UR18DSL uses high-output speakers and a bass reflex structure to produce a high volume of sound.
AUX input terminal to connect a mobile music player
The UR 18DSL enables the user to connect a mobile music player and listen to the user's favorite music
played by the player through the UR 18DSL in AUX mode.
Possible charging of mobile phones
The UR 18DSL enables the user to connect a mobile phone to the UR 18DSL and charge the mobile phone
in AUX mode*1. (Charging a mobile phone by using the UR 18DSL requires a commercially available USB
charging adapter.)
*1 The UR 18DSL is designed to be set into AUX mode when charging a mobile phone because its
charging-related components produce noise during charging.
FM antenna

-5-
1. Specifications
Model UR 18DSL
Frequency bands
FM: 87.5 to 108 MHz (Europe, Australia, New Zealand, and North America)
AM: 522 to 1620 kHz (Europe, Australia, and New Zealand)
AM: 520 to 1710 kHz (North America)
Antennas FM: Rod antenna
AM: Ferrite bar antenna (built-in)
Speaker 76 mm (8ȍ) x 2 units
Input terminal Aux in (Ɏ3.5 mm)
Output terminals Headphone terminal (Ɏ3.5 mm) and charging terminal (5 V, 0.5 A)
Maximum practical output 9.6 V: 1.4 W x 2, 12 V: 2.2 W x 21
4.4 V: 3.2 W x 2, 18 V: 5 W x 2
Power supply
Sliding-fit type battery: 14.4 or 18 VDC (only 18 V for use in North America)
Plug-in type battery: 9.6, 12, 14.4 or 18 VDC (only 18 V for use in North
America)
Backup dry-cell battery: 4.5 VDC (three dry-cell batteries)
Domestic AC power outlet (via accessory AC adapter):
Europe: 230 VAC
UK: 230 VAC
Australia: 240 VAC
New Zealand: 230 VAC
North America: 120 VAC
Max. outside dimensions 231 (L) x 184 (W) x 281 (H) mm (with the FM antenna retracted)
Weight 3.3 kg (excluding rechargeable battery, dry-cell batteries, and AC adapter)
Standard accessories AC adapter (12 VDC, 1 A) and three size-AA alkaline dry-cell batteries
SPECIFICATIONS

-6-
1. Comparison of Specifications (Superior specifications: )
Maker HITACHI
Model UR 18DSL
M
Sliding-fit type 14.4, 18 V
(only 18 V for North America) 9.6, 12, 14.4, 18, 24 V
Battery
voltage Plug-in type 9.6, 12, 14.4, 18 V
(only 18 V for North America) 9.6, 12, 14.4, 18, 24 V
Tuner Digital Digital
AM antenna Ferrite bar antenna (160 mm) Ferrite bar antenna (140 mm)
FM antenna Rod antenna (max. 920-mm long) Rubber antenna (150 mm)
Stereo output (FM) Provided Provided
Speakers (diameter x quantity) Ɏ76 (8ȍ) x 2 Ɏ76 (8ȍ) x 2
Bass reflex Provided Not Provided
Max. practical output 5 W x 2 (18 V), 3.2 W x 2 (14.4 V),
2.2 W x 2 (12 V), 1.4 W x 2 (9.6 V)
5 W x 2 (24 V), 3 W x 2 (18 V),
2 W x 2 (14.4 V), 1.2 W x 2 (12 V),
0.8 W x 2 (9.6 V)
External input terminal
(Aux in) Provided (1 terminal) Provided (2 terminals)
Output terminals Headphone and charging terminals
(5 V, 0.5 A) Not Provided
Drip-proof design Partial Equivalent to splash-proof type in
JIS waterproofing class 4
1.3 Ah About 7 hours About 7 hours
1.4 Ah About 8 hours -
1.5 Ah About 8 hours -
2.0 Ah About 11 hours About 11 hours
2.4 Ah About 13 hours -
2.6 Ah About 14 hours About 13 hours
3.0 Ah About 17 hours About 16 hours
Continuous
operation time*1
3.3 Ah About 18 hours About 17 hours
Max. outside dimensions 231 (L) x 184 (W) x 281 (H) mm
(with the antenna retracted)
281 (L) x 167 (W) x 304 (H) mm
(excluding the antenna)
Weight*2 3.3 kg 4.2 kg
Standard accessories AC adapter and size-AA dry-cell
battery x 3
AC adapter and size-AA dry-cell
battery x 2
*1 Continuous operation time: Calculated with 2.2 watts x 2 outputs
(to adjust to maximum output [at 14.4 V] of product M)
This continuous operation times above should be considered reference data because the actual time
depends on the type and charging status of the battery, and the radio use conditions.
*2 The weight excludes the rechargeable battery, dry-cell batteries, and AC adapter.
COMPARISON WITH SIMILAR PRODUCTS

-7-
CAUTION
xFor safe operation, see Instruction manual.
xRisk of fire, burning or explosion.
For use only with the UC 18YRSL, UC 18YGSL Charger.
Do not crush, disassemble, or dispose of in fire.
CAUTION
xFor safe operation, see Instruction manual.
xRisk of fire, burning or explosion.
For use only with the UC 18YFL, UC 18YRL Charger.
Do not crush, disassemble, or dispose of in fire.
CAUTION
xRead thoroughly HANDLING INSTRUCTIONS before use.
xDo not disassemble nor throw into fire.
WARNING
xTo reduce the risk of injury, the user must read and understand the instruction
manual.
AVERTISSEMENT
xAfin de réduire le risque de blessures, l'utilisateur doit lire
ƔFor safe operation, see instruction manual.
ƔCharge HITACHI rechargeable battery types of the BSL 14 and BSL 18
series. Other types of batteries may burst causing personal injury and damage. ƔCharge
at a temperature between 32°F and 104°F. Wait at least 15 minutes between the charging
of batteries. ƔFor indoor use only. ƔReplace a defective cord immediately. ƔDo not install
on or over combustible surfaces.
ƔPOUR UTILISATION A L’INTERIEUR SEULEMENT.
ƔUTILISER POUR CHARGER UNIQUEMENT LES ACCUMULATEURS
HITACHI DU TYPES BSL 14, BSL 18 SERIES. D’ACCUMULATEURS POURRAIENT
ECLATER ET CAUSER DES BLESSURES OU DOMMAGES. ƔNE PAS INSTALLER SUR OU
PAR
-
DESSUS DES SURFACES COMBUSTIBLES
CAUTION
AVERTISSEMENT
ATTENTION
1. Safety Instructions
For safe and efficient use of this product, the instruction manual for this product describes general
precautions on the use of cordless radios and precautions specific to this product. For sales promotion,
each salesperson should carefully read all the precautions in order to give appropriate instructions to
customers.
2. Caution Plates
(1) The following cautions are listed on the name plate attached to the main body of each radio.
[For the USA and Canada]
(2) The following cautions are listed on the name plate attached to each storage battery.
[For Europe]
[For the USA and Canada]
(3) The following cautions are listed on the name plate attached to the Model UC 18YRSL Charger.
[For the USA and Canada]
PRECAUTIONS ON SALES PROMOTION