SERVICE MANUAL
POCSAG RADIO PAGER
LX2 plus / LX2 advanced
LX4 plus / LX4 advanced
and CHARGING UNITS
LX2 plus / advanced and LX4 plus / advanced
Contents
1.
Block Schematic Diagram
3
2.
Technical Data
4
2.1.
2.2.
2.3.
2.4.
4
4
5
5
3.
4.
5.
6.
Pager/ PCB 227.02.xx
Charger/ PCB 228.01.xx
Pager/ PCB 227.01.xx, PCB 230.01.xx
Charger/ PCB 228.06.xx
Theory Of Operation
6
3.1. Receiver
3.2. Decoder
3.3. Charger
6
7
9
Disassembly/ Assembly
15
4.1. Pager LX2 plus / LX2 advanced
4.2. Pager LX4 plus / LX4 advanced
4.3. Charger
15
20
25
Schematics, Parts Location and Bills Of Material
28
5.1. Schematic of Receiver PCB 227.10.xx
5.2. Parts Location of Receiver PCB 227.10.xx
5.3. Bill Of Material of Receiver PCB 227.10.xx
28
30
31
5.4. Schematic of Decoder PCB 227.02.xx
5.5. Parts Location of Decoder PCB 227.02.xx
5.6. Bill Of Material of Decoder PCB 227.02.xx
33
34
35
5.7. Schematic of Decoder PCB 227.01.xx
5.8. Parts Location of Decoder PCB 227.01.xx
5.9. Bill Of Material of Decoder PCB 227.01.xx
36
37
38
5.10. Schematic of Decoder PCB 230.01.xx
5.11. Parts Location of Decoder PCB 230.01.xx
5.12. Bill Of Material of Decoder PCB 227.01.xx
39
40
41
5.13. Schematic of Charger PCB 228.01.xx
5.14. Parts Location of Charger PCB 228.01.xx
5.15. Bill Of Material Charger PCB 228.01.xx
42
43
44
5.16. Schematic of Charger PCB 228.06.xx
5.17. Parts Location of Chager PCB 228.06.xx
5.18. Bill Of Material of Charger PCB 228.06.xx
46
47
48
Description of Test Mode
49
Service and Maintenance/ Repair
Oelmann Elektronik GmbH
Allerfeldstr. 17
D-31832 Springe
Phone: 00495045-9105-0
Fax:
00495045-9105-79
www.oelmann-elektronik.de
service@oelmann-elektronik.de
B2270901
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LX2 plus / advanced and LX4 plus / advanced
Block Schematic Diagram
B2270901
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1,2 V DC
CHARGE
LAMP VIBRATOR
PROG
UCHARGE
1
3
LX2 plus / advanced and LX4 plus / advanced
2
Technical Data
2.1
Pager
PCB No.
227.02.xx (Decoder)
227.10.xx (Receiver)
Frequency Range:
Channel Separation:
No. of Channels:
Code Format:
137.975 .. 174MHz
20 / 25kHz
1
POCSAG
programmable baud rate
(512, 1200, 2400 Baud)
Sensitivity body-worn (typ.):
at 512 Baud
at 1200 Baud
at 2400 Baud
Antenna:
External Connections:
5µV/m
7µV/m
9µV/m
built-in loop antenna
for charging and signalling
to/ from charger or programmer
1.2V DC ( AAA cell)
NiCd cell e.g.250mAh
or NiMH cell e.g.500mAh
Operating Voltage:
or primary cell (not chargeable)
Temperature Range:
Operation
Storage without battery
Degree of Protection:
Size:
Weight :
German BOS Approval:
Conformaty:
2.2
-10 ... +55°C
-40 ... +80°C
IP 52
78mm x 52mm x 19mm
65g, battery inclusive
DME II – 14 / 02
Directive 1999/5/EG
Charger
PCB No.
228.01.xx
AC/ DC Adapter:
primary
230V AC
secundary
6V DC / 400mA
Charging current of pager cell:
Accelerated Charge
appr. 100mA
Trickle Charge
appr. 2.5mA
Socket for external Alert Device:.
Maximum load to relay
30V DC / 1A
Power to external
appr. 6V DC / max. 175mA
Alert Device
AF output frequency
appr. 1.2kHz
Socket for external antenna:
BNC
Indicators:
Charge lamp
green / yellow
Alert lamp
red
Size:
appr. 106mm x 93mm x 60mm
Charging Unit with acoustical alert only:
built-in Alert Buzzer
appr. 2.3kHz
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LX2 plus / advanced and LX4 plus / advanced
2.3
Pager
PCB No.
227.01.xx (Decoder)
or 230.01.xx (Decoder)
227.10.xx (Receiver)
Frequency Range:
Channel Separation:
No. of Channels:
Code Format:
137.975 .. 174MHz
20 / 25kHz
1
POCSAG
programmable baud rate
(512, 1200, 2400 Baud)
Sensitivity body-worn (typ.):
at 512 Baud
at 1200 Baud
at 2400 Baud
Antenna:
External Connections:
Operating Voltage:
3µV/m
4.5µV/m
6µV/m
built-in loop antenna
for charging and signalling
to/ from charger or programmer
1.2V DC AAA cell (LX2) / AA (LX4)
NiCd or NiMH cell
or primary cell (not chargeable)
Temperature Range:
Operation
Storage without battery
Degree of Protection:
Size:
-10 ... +55°C
-40 ... +80°C
IP 52
LX2: appr. 78 x 52 x 19mm
LX4: appr. 80 x 54 x 19mm
Weight:
(incl. battery) appr. 65g (LX2) / 85g (LX4)
German BOS Approval:
LX2: DME II – 17 / 04
LX4: DME II – 18 / 04
Conformaty:
2.4
Directive 1999/5/EG
Charger
PCB No.
228.06.xx
AC/ DC Adapter:
primary
230V AC
secundary
6V DC / 400mA
Charging current of pager cell:
Accelerated Charge (LX2 / LX4) max. appr. 100/350mA
Trickle Charge
appr. 2.5mA
Socket for external Alert Device:
Maximum load to relay
30V DC / 1A
Power to external
appr. 6V DC / max. 175mA
Alert Device
AF output frequency
appr. 1.2kHz
Socket for external Antenna:
BNC
Indicators:
Charge lamp
green / yellow
Alert lamp
red
Size:
appr. 106mm x 93mm x 60mm
Charging Unit with acoustical alert only:
built-in Alert Buzzer
appr. 2.3kHz
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LX2 plus / advanced and LX4 plus / advanced
3
Theory Of Operation
3.1
Receiver
LX2 plus / advanced, LX4 plus / advanced: PCB. No. 227.10.xx
3.1.1
General
The receiver of the POCSAG pager is a direct conversion receiver. The received radio
signal is directly mixed to the AF band and no intermediate frequency exists. A discrete
crystal oscillator stage and a frequency tripler stage form the necessary local oscillator for
down-mixing. A large scale integrated circuit (UAA2085T) contains the mentioned frequency tripler, a low noise RF amplifier, mixer, low- and high-pass filters, the demodulator,
automatic gain control, data filter and mode control function. By using two identical channels with quadrature demodulator demodulating the digital FSK modulated signal is very
effective and sensitive.
3.1.2
Antenna, LNA and Mixer
A tuned single loop antenna is used to receive RF signals. The loop and capacitors C112,
C185, C111 and the trimming capacitor C110 form a resonance parallel circuit. CR102 is
a protecting diode at the LNA input. The RF amplifier is biased via R122 and its output is
connected to the tuned parallel circuit consisting of L120 / C121. The amplified and filtered
RF signal passes a phase shifter/ balun circuit formed by C126, C131, C132, C133, C134,
L121, L131 und L132. The output of the balun has two signals which are equal in amplitude but differ in phase by 180 degrees. The additional phase shift of C131, L131, C134
und L132 creates signals at -45°, 45°, 135°, and 225°. The signals at 45° and 225° become the differential I (In-phase) signals and the signals at –45° and 135° become the
differential Q (Quadrature) signals being connected to the I and Q mixers.
3.1.3
Local Oscillator
The parts connected to Q102 form a Pierce oscillator being controlled by Y101. C164
allows trimming the frequency. Resonance of the parallel circuit L161, C165, C164 is below the crystal frequency, so the crystal is forced to oscillate in third overtone mode, not in
fundamental mode. The multiplier stage (inside U101) produces the symmetrical oscillator
signal ( three times the crystal frequency) filtered by the circuit L150, L151, C150 and
C154.
3.1.4
Mixer Output / Demodulator / Decoding
The output signals of the I and Q mixers are filtered by highly selective band-pass filters,
limited and fed to the demodulator circuit. The demodulator detects the positive or negative phase difference between the I and Q channels. The value of resistor R140 sets the
bandwidth of the filters with respect to different channel separation. The resulting recovered Data signal passes a digital filter (Post detection filter, PDF), and is available for the
POCSAG decoder at socket J101. Via three line control interface A0, A1, A2 the PDF can
be adapted to the used baud rate.
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LX2 plus / advanced and LX4 plus / advanced
3.2
Decoder
LX2 plus:
LX2 plus / advanced:
LX4 plus / advanced:
3.2.1
PCB No. 227.02.xx
PCB No. 227.01.xx
PCB No. 230.01.xx
Power Supply
PCB No. 227.02.xx:
The DC/DC up-Converter IS5 produces the output voltage of 2.85V supplying the digital
section with the help of components L3, D6, C20, C21. The diode D8 protects the converter from too high input voltages or from a battery connected the wrong way round.
C23, C24 decouple the converter from the battery.
The components T1, R3, R7, R11 and C10 are necessary for a stable start behavior of the
controller.
Transistors T3, T4 turn the receiver on and off.
PCB No. 227.01.xx / PCB No. 230.01.xx:
The DC/DC up-Converter IS5 produces the output voltage of 2.4V suppling the digital
section with the help of components L3, D6, C20, C21, R17 and R25. The diode D8 protects the converter from too high input voltages or from a battery connected the wrong
way round.
3.2.2
Receiver Interface
All signals necessary to control the receiver are routed to the plug ST1. Resistors R14,
R15, R19 und R20 serve as RF decoupling components.
PCB No. 227.02.xx:
High supply voltage 2.85V is decoupled by L1, low supply voltage 1.2V is decoupled by
L2, C17 and C22.
PCB No. 227.01.xx / PCB No. 230.01.xx:
High supply voltage 2.40V is decoupled by L1 and R6, low supply voltage 1.2V is decoupled by L2, C17 and C22.
3.2.3
Charger and Programmer Interface, Charging Circuit
There is an asynchronous serial interface allowing data exchange between pager and
charger and programming the pager (data, battery voltage, 0V).
The charging Unit controls the charging procedure of the pager`s battery. Charger and
pager exchange data regarding the charge level via wire P2.
3.2.4
Real-time Clock and Memory
Real-time clock circuit IS1 provides time and date. The clock continues running after removing the battery for a period of appr. 2 days, because it is buffered by Goldcap C2.
PCB No. 227.02.xx:
IS3 and IS4 are non-volatile memory circuits, holding all necessary parameters for a correct operation of the pager (IS4: RIC addresses, alert key words, activated functions,
Menu prompts, ... IS3: selected settings, received messages, ...).
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LX2 plus / advanced and LX4 plus / advanced
PCB No. 227.01.xx / PCB No. 230.01.xx2:
IS4 is a non-volatile memory holding all necessary parameters for a correct operation of
the pager. Additionally, all received messages are stored by IS4.
3.2.5
Display
The display shows the incoming messages and the operator menues. The display is parallel driven. The voltage divider sets the voltage reference of display LCD1. Components
C1, C3, C5, C6, C11, C12, C13, C15, C19, R1 and R2 are necessary in order to generate
the LCD voltage of appr. 7.2V. The LCD can be back-lighted by lamps H2 and H3.
3.2.6
Controller
PCB No. 227.02.xx:
Microcontroller IS2 controls all functions like decoding radio data , alerting, displaying
messages , back-lighting, ...
If self-reception occurs, the controller can be operated with a different crystal frequency of
Q2. The following frequencies can be used and recognized by the controller firmware,
automatically:
firmware F2270112 and previous
3.579545 MHz
3.686400 MHz
4.000000 MHz
4.032000 MHz
4.096000 MHz
firmware F2270113 and later
3.532800 MHz
3.579545 MHz
3.686400 MHz
3.840000 MHz
3.993600 MHz
4.000000 MHz
PCB No. 227.01.xx / PCB No. 230.01.xx:
There are two microcontrollers IS2 and IS6. Controller IS6 decodes radio data and announces reception towards IS2 via serial interface. Controller IS2 controls all functions:
operating, signalling, displaying messages.
If self-reception occurs, the controller can be operated with a different crystal frequency of
Q2 = Q3. The following frequencies can be used and recognized by the controller firmware, automatically:
3.532800 MHz
3.579545 MHz
3.686400 MHz
3.840000 MHz
3.993600 MHz
4.000000 MHz
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LX2 plus / advanced and LX4 plus / advanced
3.3
Charging Unit (PCB No. 228.01.xx)
Charging Unit with PCB No. 228.01.xx
3.3.1
Power Supply
The Charging Unit is powered by an external AC/ DC Adapter plugged into the wall power
socket (UAC = 230V, f = 50Hz). The adapter delivers an unstabilized DC voltage U= = 6V at
IL = 0,4A to supply the Charging Unit.
The adapter is connected to the Charger using socket BU1 of the Charger.
The electrolythic capacitor C12 removes residual noise and buffers the supply voltage so
that mechanically caused short connection interrupts cannot lead to malfunction. Additionally components R22 (Varistor) and D7 (Supressor Diode) can be placed to prevent
over-voltage problems.
To supply the internal microcontroller an integrated voltage regulator (IS2) produces a
stable 3V supply. Capacitors C7, C8 und C9 are necessary for a stable operation of the
regulator. Diode D3 prevents supply via the output whenever the cable of the adapter is
removed.
C13 is a decoupling capacitor placed near to the microcontroller. Resistor R49 discharges
the capacitors quickly if the Charger is turned off by removing the adapter cable. This is to
prevent the microcontroller from working with supply voltages outside the specified range.
A decoupled voltage to supply external devices is available on socket BU2. That supply is
current-limited by R20 and protected by fuse SI1.
3.3.2
Charge Current
The chargeable battery inside the pager gets charged whenever one of the two current
paths is turned on (switching transistor T1 or T10 enabled by the microcontroller). The respective base resistor R5 or R19 is drawn to ground by an open-drain port of the controller. R4 and R18 are used to make sure that the transistors turn off properly.
Charging is done by a more or less constant current. The current is set by the respective
limiting resistance. In case of the high charge current (T1 turned on), only resistor R7 is
effective:
IL accelerated ˜ ( U=-Ubatt) / R7 = (6V-1,4V) / 47Ω = 98mA,
during normal charging (T10 turned on) the current is:
IL normal ˜ (U =-UAkku) / (R7+R23+R24) = (6V-1,4V) / (47Ω + 56Ω + 68Ω ) = 27mA.
Diode D12 prevents the battery from being discharged when no charge current is available and the inductor L3 guards against RF interference.
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LX2 plus / advanced and LX4 plus / advanced
The microcontroller supervises voltages coming from the divider R34, R35 and serial resistor R12 and smoothed by capacitors C1 and C10, respectively. L5 again is a RF
choke. Zener diode D11 limits the voltage to stay below the maximum allowable input
value of the microcontroller.
The measured voltage difference is used to calculate a charge account.
Transistor T13 is a current sink, activated during self-diagnostic or in order to discharge
the battery. Resistor R43 limits the current and inductor L4 is a RF choke. Transistor T13
is turned on via resistor R45 by means of “active high“.
3.3.3
Microcontroller
All the controlling tasks are done by the 8 bit controller circuit IS1. The clock is generatedby the internal oscillator. External components belonging to the oscillator are the capacitors C4 , C5 and crystal Q1. Transistor T3 with additional components R8, R9, R16
and C6 form the necessary reset circuit.
The UART, implemented in the controller, allows communication with the pager. The signals RxD and TxD are coupled to one wire using diode D10. Resistor R15 serves as a
„pull-up“ resistor connected to the communication wire which is used in both directions. By
placing additional components marked * and using a suitable software, the charger can be
upgraded to be able to work as a programmer.
3.3.4
Temperature Supervision
The Charging Unit supervises the ambient temperature during the charging procedure and
varies the charge current accordingly, i.e. accelerated charge is permitted within a specified temperature range, only. The voltage of the resistive devider R31/ R32 is measured.
R31 is a temperature-dependent resistor.
3.3.5
External Alert Devices
After reception of an alert, relay REL1 is activated by T6, R13 and R14. Resistor R30 limits the current and D2 serves as a free-wheeling diode. The time the relay stays active ,
i.e.the time the working contacts REL1A are closed, can be programmed (pager programming).
Furthermore a square signal of appr. 1.2 kHz is output via transistor T4 (base resistor R2).
This transistor can be made up with external components, e.g. loudspeaker.
As an option, a switching circuit (R41, R42 and T12) can be placed which can drive a
suitable Buzzer for additional loud alert.
The alert can be erased by pressing button TA1 on the charger. The switching signal is
filtered by resistor R47 and capacitor C11.
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LX2 plus / advanced and LX4 plus / advanced
3.3.6
Indicators
Light emitting diodes D4, D8 or D9 indicate the operation conditions. The necessary current is sinked by the microcontroller via resistors R6, R10 and R33. Transistor T11 together with resistors R38 and R39 form the global switch to supply the LED`s. This would
allow a dimming function which is not built in at the moment.
3.3.7
External Antenna
An external antenna can be connected to socket BU3 which is connected to a coupling
loop in order to couple the received signal to the pager.
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LX2 plus / advanced and LX4 plus / advanced
3.4
Charging Unit (PCB No. 228.06.xx)
Charging Unit with PCB No. 228.06.xx
3.4.1
Power Supply
The Charging Unit is powered by an external AC/ DC Adapter plugged into the wall power
socket (UAC = 230V, f = 50Hz). The adapter delivers an unstabilized DC voltage U= = 6V at
IL = 0,4A to supply the Charging Unit.
The adapter is connected to the Charger using socket BU1 of the Charger.
The electrolythic capacitor C12 removes residual noise and buffers the supply voltage so
that mechanically caused short connection interrupts cannot lead to malfunction. Additionally components R22 (Varistor) and D7 (Supressor Diode) can be placed to prevent
over-voltage problems.
To supply the internal microcontroller an integrated voltage regulator (IS2) produces a
stable 3V supply. Capacitors C7, C8 und C9 are necessary for a stable operation of the
regulator. Diode D3 prevents supply via the output whenever the cable of the adapter is
removed.
C13 is a decoupling capacitor placed near to the microcontroller. Resistor R49 discharges
the capacitors quickly if the Charger is turned off by removing the adapter cable. This is to
prevent the microcontroller from working with supply voltages outside the specified range.
A decoupled voltage to supply external devices is available on socket BU2. That supply is
current- limited by R20 and protected by fuse SI1.
3.4.2
Charge Current
The chargeable battery inside the pager gets charged whenever one of the three current
paths is turned on (switching transistors T1, T52 or T53 eneabled by the microcontroller). The respective base resistor R50, R51 or R52 is drawn to ground by an open-drain
port of the controller.
Charging is done by a more or less constant current. The current is set by the respective
limiting resistance. The charge currents are:
IL1 ≈ (U=-Ubatt)/(R57+R7) = (6V-1,4V)/(2,2Ω+10Ω) = 375mA
IL2 ≈ (U=-Ubatt)/(R58+R7) = (6V-1,4V)/(33Ω+10Ω) = 105mA
IL3 ≈ (U=-Ubatt)/(R59+R7) = (6V-1,4V)/(120Ω+10Ω) = 35mA
The current paths are chosen according to the type of pager and the programmed battery capacity. For LX2 and LX4 having battery capacities below 1000mAh only currents
IL2 and IL3 are used. In case of LX4 with larger battery capacity IL1 is used additionally.
Resistor R7 is used as an additional “sense“ resistor for current measurement. Voltage
dividers R54/ R55 and R34/ R35 reduce the voltage taken from the two terminals of R7
to be inside the specified range of the microcontroller. Inductors L4, L5 and capacitors
C1 and C10 are used for smoothing and preventing RF interference. The measured
voltage difference is used to calculate a charge account.
Transistors T50 and T51 are current sinks, activated during self-diagnostic or discharge of
the battery. They are turned on via resistors R45 and R53 by means of “active high“.
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3.4.3
Microcontroller
All the controlling tasks are done by the 8 bit controller circuit IS1. The clock is generatedby the internal oscillator. External components belonging to the oscillator are the capacitors C4 , C5 and crystal Q1. Transistor T3 with additional components R8, R9, R16
and C6 form the necessary reset circuit.
The UART, implemented in the controller, allows communication with the pager. The signals RxD and TxD are coupled to one wire using diode D10. Resistor R15 serves as a
„pull-up“ resistor connected to the communication wire which is used in both directions.
3.4.4
Temperature Supervision
The Charging Unit supervises the ambient temperature during the charging procedure and
varies the charge current accordingly, i.e. accelerated charge is permitted within a specified temperature range, only. The voltage of the resistive devider R31/ R32 is measured.
R31 is a temperature-dependent resistor.
3.4.5
External Alert Devices
After reception of an alert, relay REL1 is activated by T6 and R13. Resistor R30 limits the
current and D2 serves as a free-wheeling diode. The time the relay stays active , i.e.the
time the working contacts REL1A are closed, can be programmed (pager programming).
Furthermore a square signal of appr. 1.2 kHz is output via transistor T4 (base resistor R2).
This transistor can be made up with external components, e.g. loudspeaker.
As an option, a switching circuit (R41, R42 and T12) can be placed which can drive a
suitable Buzzer SU1 for additional loud alert.
The alert can be erased by pressing button TA1 on the charger. The switching signal is
filtered by resistor R47 and capacitor C11.
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3.4.6
Indicators
Light emitting diodes D4, D8 or D9 indicate the operation conditions. The necessary current is sinked by the microcontroller via resistors R6, R10 and R33.
3.4.7
External Antenna
An external antenna can be connected to socket BU3 which is connected to a coupling
loop in order to couple the received signal to the pager.
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4
Disassembly/ Assembly Of The Pager
4.1
LX2 plus / LX2 advanced
4.1.1
Removing / Replacing The Battery
4.1.2
•
•
•
Slide the door lock away from the battery door.
Slide the battery door until the locking tabs release.
Lift the door up to open and remove the battery.
•
•
Replace the battery with correct polarity ( + and – markings).
Press down and slide the battery door until it is fully closed. Slide the door lock to its
fully locked position.
Removing/ Replacing The Battery Door And Back Housing
•
•
•
•
•
•
4.1.3
Remove the battery and hold the door open.
Apply a horizontal force, pull sideways and remove the door (refer to Fig. 1).
Use a slotted screw driver or similiar to slide both ends of the latch a few millimetres
away from the metal pin (refer to Fig. 2) Now lift up the ends of the latch away from the
housing. Carefully pull the latch according to the arrow shown in Fig. 3 until it is free.
Separate the back housing from the front housing (refer to Fig. 4).
To replace the back housing, align it with the front housing and press back together.
The metal pin (for the carrying chain) has to be pushed into the respective hole of the
back housing.
Start replacing the latch at the side opposite to the charging contacts (refer to Fig. 5),
place the studs into the zip-holes around the housing (as shown in Fig. 6).
Align the battery door hinges with the hinge slots on the back housing and push to engage the hinges (refer to Fig. 7). The battery door is properly seated when it can be
lifted up and closed easily.
Removing/ Replacing The Receiver Board
•
•
•
•
•
•
Remove the battery.
Remove the battery door, the latch and the back housing.
Gently pry the receiver board up and away from the decoder board (refer to Fig. 8).
To replace the receiver board, align the interconnect socket on the receiver board with
the interconnect plug on the decoder board and press the receiver board down. Do not
misalign the shock pad.
Replace the back housing, the latch and the battery door.
Replace the battery.
Fig.1
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Fig. 2
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Fig. 3
Fig. 4
Fig. 5
Fig. 6
Fig. 7
Fig. 8
Fig. 9
Fig. 10
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LX2 plus / advanced and LX4 plus / advanced
Fig. 11
4.1.4
Removing/ Replacing The Decoder Board
•
•
•
•
•
•
Remove the battery.
Remove the battery door, the latch and the back housing.
Remove the receiver board.
Remove the shock pad.
Use tweezers or similiar to pull the decoder board catch (refer to Fig. 9).
Remove the decoder board from the front housing (refer to Fig. 10).
•
Starting with the sound transducer insert the decoder board into the front housing and
press down (refer to Fig. 11). Be careful: the transducer seal and the keypad must not
get out of place!
Let the decoder board lock to the front housing (catch on the housing, near to the
battery compartment).
Replace the shock pad (refer to Fig. 12).
Replace the receiver board.
Replace the back housing, the latch and the battery door.
Replace the battery.
•
•
•
•
•
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Fig. 12
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4.1.5
Exploded View Diagram LX2 plus / LX2 advanced
LCD module
assembly
back housing
assembly
keypad
assembly
front housing
assembly
B2270901
Content is subject to change without notice!
18
LX2 plus / advanced and LX4 plus / advanced
4.1.6
Spare Parts LX2 plus / LX2 advanced
Item
Part Number
Description
1
2
3
4
GGM227.06.xx
GGM227.02.xx
MZS1.6M6X8+0.2
GGM227.36.xx +
GGM227.39.xx
GGM227.12.xx
EBM227.15.xx
EBM227.14.xx
GGM227.10.xx
GGM227.09.xx
GGM227.08.xx
GGM227.07.xx
GGM227.28.xx
GGM227.16.xx
OKLCDM227.11.xx
GGM227.03.xx
UK-227.01.xx
JSVM1.3VK1DVH
GGM227.40.xx
GGM227.17.xx
GGM227.24.xx
UK-227.yy.xx
(yy=10....21)
GGM227.01.xx
GGM468.28.xx
GGM468.28.xx
GGM468.28.xx
GGM227.13.xx
BEM227.34.xx +
BEM227.35.xx
GGM227.26.xx
GGM227.27.xx
GGM227.04.xx
GGM227.04.xx BL
GGM227.04.xx GN
GGM227.04.xx SW
GGM227.29.xx
GGM227.31.xx
JBANICD1.2350M
JB1V5LR03MICRO
Lens
Front housing assembly
Metal pin 1.6m6X8+0.2 DIN 7
Grill clothe
Transducer seal
Front housing
Contact, battery, negative
Contact, battery, positive
Button "Read", green
Button "Select", red
Button "Right"
Button"Left"
Keypad
LCD LX2 module assembly (complete incl. Driver)
LCD LX2 with flexible PCB and driver
LCD light diffusor assembly
Decoder board
Vibrator motor
Shielding foil
Shielding cover
Schock pad
Receiver board
5
6
7
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
B2270901
Back housing assembly
Adhesive shock pad (1x0.25)
Adhesive shock pad (2x0.5)
Adhesive shock pad (2x0.75)
Back housing
Label plus
Laminate
Battery door
Battery door latch
Housing latch, red
Housing latch, blue
Housing latch, green
Housing latch, black
Reflector foil
LCD adhesive tape
Chargeable battery
Battery
Content is subject to change without notice!
19
LX2 plus / advanced and LX4 plus / advanced
4.2
LX4 plus / LX4 advanced
4.2.1
Removing/ Replacing The Battery
4.2.2
•
•
•
Slide the door lock away from the battery door (refer to Fig. 1).
Slide and open the battery door as shown in figure 1.
Remove the battery.
•
•
Replace the battery with correct polarity (+ and – markings).
Close and slide back the battery door. Slide the door lock to its fully locked position.
Removing/ Replacing The Battery Door And Back Housing
•
•
•
•
•
•
4.2.3
Unlock the battery door (refer to Fig. 1).
Slide and take off the battery door (refer to Fig. 1).
Use a slotted screw driver (or similiar) to push the housing latch a few millimetres
away from the housing (near to the positive battery contact of the battery compartment
(Fig. 2). Move it a little upwards, remove it from the housing and pull it away in the direction of the arrow (refer to Fig. 3).
Use tweezers (or similiar) to unlock the catch on the back housing from the front
housing (refer to Fig. 4).
Separate the back housing from the front housing (refer to Fig. 5).
Start re-assembly with the housing latch (refer to Fig. 6). Then align the back housing
with the front housing (refer to Fig. 5) and press together until the catch locks.
Removing/ Replacing The Receiver Board
•
•
•
•
Open the housing as previously described.
Gently pry the receiver board up and away from the decoder board (refer to Fig. 7).
To replace the receiver board, align the interconnect socket and plug (refer to Fig. 8)
and press the boards together. Do not misalign the shock pad!
Re-assemble as described above.
Fig. 1
B2270901
Fig. 2
Content is subject to change without notice!
20
LX2 plus / advanced and LX4 plus / advanced
B2270901
Fig. 3
Fig. 4
Fig. 5
Fig. 6
Fig. 7
Fig. 8
Fig. 9
Fig. 10
Content is subject to change without notice!
21
LX2 plus / advanced and LX4 plus / advanced
4.2.4
Removing/ Replacing The Decoder Board
•
•
•
•
•
Remove the battery.
Remove the battery door and the housing latch. Take off the back housing.
Remove the receiver board (refer to Fig. 7).
Remove the shock pad.
In order to remove the decoder board from the front housing slightly push the LCD
diffusor near to the battery compartment (refer to Fig. 9).
Insert the decoder board with the guiding tabs in front into the front housing (refer to
Fig. 9) and press down gently.
Replace the shock pad aligning it correctly. Pay attention to the marked areas 1-3/ Fig.
11
Replace the receiver board (refer to Fig.7).
Replace the housing latch, back housing, battery door and battery.
•
•
•
•
Fig. 11
1
3
2
B2270901
Content is subject to change without notice!
22
LX2 plus / advanced and LX4 plus / advanced
4.2.5
B2270901
Exploded View Diagram LX4 plus / LX4 advanced
Content is subject to change without notice!
23
LX2 plus / advanced and LX4 plus / advanced
4.2.6
Spare Parts LX4 plus / LX4 advanced
Item
Part Number
Description
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
GGM230.14.xx
GGM230.16.xx
GGM230.15.xx
MZS1.6M6X8+0.2
EBM230.12.xx
EBM230.13.xx
GGM230.09.xx
GGM230.08.xx
GGM230.07.xx
GGM230.18.xx
GGM230.17.xx
GGM230.22.xx
GGM230.19.xx
GGM230.21.xx
GGM230.20.xx
GGM230.23.xx
OKLCDM230.02.xx
GGM230.25.xx
GGM230.27.xx
UK-230.01.xx
GGM230.24.xx
UK-227.yy.xx
(yy=10...21)
GGM230.06.xx
GGM230.05.xx
GGM230.04.xx
LX4 Front housing assembly (Items 2-9)
LX4 Housing latch
LX4 Grille cloth
Metal pin 1.6m6x8+0.2 DIN7NiRo
LX4 Contact battery, negative
LX4 Contact battery, positive
LX4 Keypad for button green
LX4 Button green
LX4 Front housing
LX4 Lens labelled “Motorola“
LX4 Button frame assembly
LX4 Window frame
LX4 Button left/ right white
LX4 Button red
LX4 Button up/ down white
LX4 Keypad window frame
LX4 LCD assembly
LX4 Light diffuser green/ yellow
LX4 Reflector foil 49.5 x 18.8 mm
Decoder board
LX4 Shock pad
Receiver board
19
20
21
22
23
24
B2270901
LX4 back housing assembly
LX4 Battery door latch
LX4 Battery door
Content is subject to change without notice!
24
LX2 plus / advanced and LX4 plus / advanced
4.3
Charging Unit
Work carefully to avoid damaging the PCB and housing.
4.3.1
Removing/ Replacing The Top Housing
§
§
§
§
§
§
§
§
§
§
Insert a size No. 2 slotted screw driver vertically into the holes in front of the bottom
housing (refer to Fig. 1).
When it is positioned between the snap and the catch turn the screw driver by max.
1/8 turn and separate bottom and top housing with your fingers at the same time (refer
to Fig. 2).
Insert the screw driver vertically into the holes in the back of the bottom housing (refer
to Fig. 3).
Turn the screw driver by max. 1/8 turn and separate bottom and top housing with your
fingers at the same time (refer to Fig. 4).
Take off the cable connected to the contact pins from the printed circuit board.
Remove the top housing.
Before replacing the top housing check that the reset button is positioned correctly.
Replace the cable connected to the contact pins on the PCB.
Align the top housing with the PCB so that the reset button matches the hole in the
top housing.
Press the top and bottom housings together with force and let it snap into each other.
Fig. 1
Fig. 2
snap
catch
Fig. 4
catch
snap
Fig. 3
B2270901
Content is subject to change without notice!
25
LX2 plus / advanced and LX4 plus / advanced
4.3.2
Removing/ Replacing The PCB Of The Charging Unit
§
§
Remove the top housing.
Remove the Charger PCB from the bottom housing.
§
§
Position the bumper feet in the bottom housing (refer to Fig. 5).
Position the the PCB on the bumper feet so that the rubber posts fit in the holes on
the PCB (refer to Fig. 6).
Replace the reset button on the PCB.
Replace the top housing.
§
§
Fig. 5
B2270901
Fig. 6
Content is subject to change without notice!
26
LX2 plus / advanced and LX4 plus / advanced
4.3.3
Exploded View Diagram
4.2.4
Spare Parts Charging Unit
Item
1
or
2
3
or
4
5
6
7
8
9
10
11
12
13
14
15
16
17
B2270901
Part Number
Description
GGM228.07.xx
GGM228.18.01
BEM228.02.xx
GGM228.06.xx
GGM228.17.01
GGM228.09.xx
GGM228.04.xx
UF-228.06.xx
GGM228.10.xx
GGM469.13.xx
ESDIMAB5SH
FA-M228.01.xx
ESBNCBU9050
ESVBUKLDSMT0202
GGM225.02.xx
BEM227.34.xx
EBM228.03.xx
EDZM228.05.xx
LKT11.8040/0.4
Frame LX2
Frame LX4
Escutcheon
LX2 Top housing with contacts
LX4 Top housing with contacts
LED Guide
Reset Button
PCB Charger
Bumper feet set (4 pieces)
Bottom housing
DIN socket, 5pole, 90°
Antenna loop
BNC socket, 90°, 50Ω
SMD power socket
Shielding cover
Bottom label
Charging contact pin
Connecting cable
AC/ DC Adapter
Content is subject to change without notice!
27
LX2 plus / advanced and LX4 plus / advanced
Printed Circuit Boards
5.1
Receiver Schematic PCB No. 227.10.xx
* value is frequency depended
** not placed
5
B2270901
Content is subject to change without notice!
28
LX2 plus / advanced and LX4 plus / advanced
Frequency
Range Option
Frequency
C112 C113 C121 C131 C150 C154 C165
Range
(pF) (pF) (pF)
(pF) (pF) (pF) (pF)
(MHz)
L121 C126
(pF) (pF)
A = 227.10.xx
138...141
10
3,3
3
10
10
0,75
22
330
22
B = 227.11.xx
141...144
10
3
2,7
-
10
1
22
330
20
C = 227.12.xx
144...147
9,1
3
2,4
9,1
9,1
-
16
330
20
D = 227.13.xx
147...150
9,1
2,7
2,4
8,2
7,5
1
16
330
20
E = 227.14.xx
150...153
9,1
2,7
1,8
7,5
7,5
1
15
330
18
F = 227.15.xx
153...156
8,2
2,7
1,8
7,5
7,5
1
18
330
6,8 A)
G = 227.16.xx
156...159
7,5
2,7
2,2
6,8
7,5
-
13
270
18
H = 227.17.xx
159...162
7,5
2,4
2,2
6,2
6,8
-
13
270
16
I = 227.18.xx
162...165
6,8
2
1,8
5,6
6,8
-
15
270
16
J = 227.19.xx
165...168
6,2
2
1,8
5,6
6,2
-
10
270
15
K = 227.20.xx
168...171
5,6
2,4
1,2
5,1
5,6
-
10
270
15
L = 227.21.xx
171...174
5,1
2,4
1,2
4,7
5,6
-
12
270
15
B2270901
Content is subject to change without notice!
29
5.2
LX2 plus / advanced and LX4 plus / advanced
Parts Location Receiver PCB No. 227.10.xx
Side 1
Side 2
B2270901
Content is subject to change without notice!
30
LX2 plus / advanced and LX4 plus / advanced
5.3
B2270901
Bill Of Material Receiver PCB No. 227.10.xx
Item
Part Number
Description
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
CSTAB4766
CS0603X7R103
CS0603NP0102
CSTAA10610
CSTR3-10TZVY2Z
CS0603NP08p20.1
CS0603NP01000.1
CS0603NP09p10.1
CS0603NP08p20.1
CS0603NP07p50.1
CS0603NP06p80.1
CS0603NP06p20.1
CS0603NP05p60.1
CS0603NP05p10.1
CS0603NP03p30.1
CS0603NP03p00.1
CS0603NP02p70.1
CS0603NP02p40.1
CS0603NP02p00.1
CS0603NP03p00.1
CS0603NP02p70.1
CS0603NP02p40.1
CS0603NP01p80.1
CS0603NP02p20.1
CS0603NP01p20.1
CS0603NP0102
CS0603X7R103
CS0603NP0102
CS0603NP02202
CS0603NP02002
CS0603NP01802
CS0603NP06p80.1
CS0603NP01602
CS0603NP01502
CS0603NP01000.1
CS0603NP09p10.1
CS0603NP08p20.1
CS0603NP07p50.1
CS0603NP06p80.1
CS0603NP06p20.1
CS0603NP05p60.1
CS0603NP05p10.1
CS0603NP04p70.1
CS0603NP0270
CS0603NP0160
CS0603X7R152
CS0603NP01000.1
CS0603NP09p10.1
CS0603NP07p50.1
CS0603NP06p80.1
CS0603NP06p20.1
CS0603NP05p60.1
SMDTantalum B, 47µF 6V
SMD Capacitor 10nF, 0603, X7R
SMD Capacitor 1nF, 0603, NP0
SMD Tantalum A, 10µF 10V
SMD Trimming capacitor 3-10pF
SMD Capacitor 8.2pF±0.1, 0603, NP0
SMD Capacitor 10pF±0.1, 0603, NP0
SMD Capacitor 9.1pF±0.1, 0603, NP0
SMD Capacitor 8.2pF±0.1, 0603, NP0
SMD Capacitor 7.5pF±0.1, 0603, NP0
SMD Capacitor 6.8pF±0.1, 0603, NP0
SMD Capacitor 6.2pF±0.1, 0603, NP0
SMD Capacitor 5.6pF±0.1, 0603, NP0
SMD Capacitor 5.1pF±0.1, 0603, NP0
SMD Capacitor 3.3pF±0.1, 0603, NP0
SMD Capacitor 3pF±0.1, 0603, NP0
SMD Capacitor 2.7pF±0.1, 0603, NP0
SMD Capacitor 2.4pF±0.1, 0603, NP0
SMD Capacitor 2.0pF±0.1, 0603, NP0
SMD Capacitor 3pF±0.1, 0603, NP0
SMD Capacitor 2.7pF±0.1, 0603, NP0
SMD Capacitor 2.4pF±0.1, 0603, NP0
SMD Capacitor 1.8pF±0.1, 0603, NP0
SMD Capacitor 2.2pF±0.1, 0603, NP0
SMD Capacitor 1.2pF±0.1, 0603, NP0
SMD Capacitor 1nF, 0603, NP0
SMD Capacitor 10nF, 0603, X7R
SMD Capacitor 1nF, 0603, NP0
SMD Capacitor 22pF±2%, 0603, NP0
SMD Capacitor 20pF±2%, 0603, NP0
SMD Capacitor 18pF±2%, 0603, NP0
SMD Capacitor 6.8pF±0.1, 0603, NP0
SMD Capacitor 16pF±2%, 0603, NP0
SMD Capacitor 15pF±2%, 0603, NP0
SMD Capacitor 10pF±0.1, 0603, NP0
SMD Capacitor 9.1pF±0.1, 0603, NP0
SMD Capacitor 8.2pF±0.1, 0603, NP0
SMD Capacitor 7.5pF±0.1, 0603, NP0
SMD Capacitor 6.8pF±0.1, 0603, NP0
SMD Capacitor 6.2pF±0.1, 0603, NP0
SMD Capacitor 5.6pF±0.1, 0603, NP0
SMD Capacitor 5.1pF±0.1, 0603, NP0
SMD Capacitor 4.7pF±0.1, 0603, NP0
SMD Capacitor 27pF, 0603, NP0
SMD Capacitor 16pF, 0603, NP0
SMD Capacitor 1.5nF, 0603, X7R
SMD Capacitor 10pF±0.1, 0603, NP0
SMD Capacitor 9.1pF±0.1, 0603, NP0
SMD Capacitor 7.5pF±0.1, 0603, NP0
SMD Capacitor 6.8pF±0.1, 0603, NP0
SMD Capacitor 6.2pF±0.1, 0603, NP0
SMD Capacitor 5.6pF±0.1, 0603, NP0
101
102
103
104
110
111
112 (A,B)
112 (C,D,E)
112 (F)
112 (G,H)
112 (I)
112 (J)
112 (K)
112 (L)
113 (A)
113 (B,C)
113 (D,E,F,G)
113 (H,K,L)
113 (I,J)
121 (A)
121 (B)
121 (C,D)
121 (E,F,I,J)
121 (G,H)
121 (K,L)
122, C 123
124
125
126 (A)
126 (B,C,D)
126 (E,G)
126 (F)
126 (H,I)
126 (J,K,L)
131 (A)
131 (C)
131 (D)
131 (E,F)
131 (G)
131 (H)
131 (I,J)
131 (K)
131 (L)
132
133, C 134
135, C 136
150 (A,B)
150 (C)
150 (D,E,F,G)
150 (H,I)
150 (J)
150 (K,L)
Content is subject to change without notice!
31
LX2 plus / advanced and LX4 plus / advanced
Item
Part Number
Description
C 151 - C 153
C 154 (A)
C 154 (B,D,E,F)
C 161
C 163
C 164
C 165 (A,B)
C 165 (C,D)
C 165 (E,I)
C 165 (F)
C 165 (G,H)
C 165 (J,K)
C 165 (L)
C 166
C 168
C 170
C 180
C 181
C 182, C 183
C 184
C 185
C 186
CR 102
E 101
J 101
L 120
L 121 (A ... F)
L 121 (G ... L)
L 130
L 131, L 132
L 150, L 151
L 161
Q 101
Q 102
R 103
R 104
R 106
R 120
R 122
R 140
R 150
R 162
R 165
R 166
R 171
R 180
R 181
R 199
U 101
Y 101
CS0603NP0102
CS0603NP00p75
CS0603NP01p00.1
CS0603NP0102
CS0603X7R103
CSTR4.5-20TZVY2
CS0603NP0220
CS0603NP0160
CS0603NP0150
CS0603NP0180
CS0603NP0130
CS0603NP0100
CS0603NP0120
CS0603NP0220
CS0603NP0102
CS0603X7R103
CS0603NP0121
CS0603Y5V104
CSTAB4766
CSTAA10610
CS0603NP0130
CS0603X7R103
DSDBAS16W
FA-M227.23.01
ESFCI7212031111
LSLL2012FHR33J
LSLL2012FHR33J
LSLL2012FHR27J
LSLL2012FH68NJ
LSLL2012FHR22J
LSLL1608FH47NJ
LSLL2012FHR47J
TSBC857C
TSBFR35AP
RS06035100
RS06035104
RS06035102
RS06035100
RS06035823
RS06035473
RS06035123
RS06035222
RS06035823
RS06035102
RS06035184
RS06035510
RS06035102
RS060319101
ICSUAA2085T
QKQOE55/160
SMD Capacitor 1nF, 0603, NP0
SMD Capacitor 0.75pF±0.1, 0603, NP0
SMD Capacitor 1.0pF±0.1, 0603, NP0
SMD Capacitor 1nF, 0603, NP0
SMD Capacitor 10nF, 0603, X7R
SMD Trimming capacitor 4.5-20pF
SMD Capacitor 22pF, 0603, NP0
SMD Capacitor 16pF, 0603, NP0
SMD Capacitor 15pF, 0603, NP0
SMD Capacitor 18pF, 0603, NP0
SMD Capacitor 13pF, 0603, NP0
SMD Capacitor 10pF, 0603, NP0
SMD Capacitor 12pF, 0603, NP0
SMD Capacitor 22pF, 0603, NP0
SMD Capacitor 1nF, 0603, NP0
SMD Capacitor 10nF, 0603, X7R
SMD Capacitor 120pF, 0603, NP0
SMD Capacitor 100nF, 0603, Y5V
SMD Tantalum B, 47µF 6V
SMD Tantalum A, 10µF 10V
SMD Capacitor 13pF, 0603, NP0
SMD Capacitor 10nF, 0603, X7R
SMD Diode, BAS16 "W", SOT323
Single loop antenna
SMD Socket, 11pole
SMD Coil, 330nH 0805 LL2012
SMD Coil, 330nH 0805 LL2012
SMD Coil, 270nH 0805 LL2012
SMD Coil, 68nH, 0805 LL2012
SMD Coil, 220nH, 0805 LL2012
SMD Coil, 47nH, 0603, LL1608
SMD Coil, 470nH 0805 LL2012
SMD Transistor, BC857C, SOT23
SMD Transistor, BFR35 AP (GE)
SMD Resistor 10R, 0603, 5%
SMD Resistor 100k, 0603, 5%
SMD Resistor 1k, 0603, 5%
SMD Resistor 10R, 0603, 5%
SMD Resistor 82k, 0603, 5%
SMD Resistor 47k, 0603, 5%
SMD Resistor 12k, 0603, 5%
SMD Resistor 2k2, 0603, 5%
SMD Resistor 82k, 0603, 5%
SMD Resistor 1k, 0603, 5%
SMD Resistor 180k, 0603, 5%
SMD Resistor 51R, 0603, 5%
SMD Resistor 1k, 0603, 5%
SMD Resistor 9k1, 0603, 1%
SMD IC, UAA 2085T
Channel Crystal OE55/160
Range Option
A
=
227.10.xx
B
=
227.11.xx
C
=
227.12.xx
D
=
227.13.xx
E
=
227.14.xx
F
=
227.15.xx
B2270901
Frequency Range
138 ... 141 MHz
141 ... 144 MHz
144 ... 147 MHz
147 ... 150 MHz
150 ... 153 MHz
153 ... 156 MHz
Range Option
G =
227.16.xx
H =
227.17.xx
I
=
227.18.xx
J
=
227.19.xx
K =
227.20.xx
L
=
227.21.xx
Content is subject to change without notice!
Frequency Range
156 ... 159 MHz
159 ... 162 MHz
162 ... 165 MHz
165 ... 168 MHz
168 ... 171 MHz
171 ... 174 MHz
32
LX2 plus / advanced and LX4 plus / advanced
5.4
B2270901
Decoder Schematic PCB No. 227.02.xx
Content is subject to change without notice!
33
LX2 plus / advanced and LX4 plus / advanced
5.5
Parts Location Decoder PCB No. 227.02.xx
Side 1
C2 / size x
C2 / size y
Side 2
Attention
Pay attention to the correct polarity of part C2
( + and – marking!)
B2270901
Content is subject to change without notice!
34
LX2 plus / advanced and LX4 plus / advanced
5.6
Bill OF Material Decoder Board PCB No. 227.02.xx
Item
Part Number
H1
C9, C14, C16
C24
C10
C1, C20, C22
CS0603Y5V105
C4
C5
C2
C17, C18
C23
C21
D1, D3, D5, D7
D4, D6, D9
D8
D10
ST1
AS5002811Y04
CS0603NP0150
CS0603X7R223
CS0603X7R47316
CS0603Y5V104
C3, C6, C11-C13, C15, C19
CS0805NP0102
CS0805X7R104
CSSEECEN0F204B
CSTAA10610
CSTAB4766
CSTAC1076
DSDBAS16W
DSDBAT54W
DSZBZX84C2V4
DSZBZX84C5V6
ESFCI9190131411
GGM227.17.01
IS3, IS4
ICSCAT24WC256KI1.8
IS5
ICSMIC2571-1BMM
IS1
ICSPCF8563TF4
IS2
ICSUPD78F0034AY
VIB1
JSVM1.3VK1DVH
L1
LSLK16081R0K
L2
LSLK3216100M106
L3
LSSDS0604-181K
LCD1
OKLCDM227.16.01
H2, H3
OSLA6504414R01
Q2
QKQ3.6864TC39
Q1
QKQ32.768KHZ2X6
R4, R10, R12, R24
RS06035101
R16, R20- R22
RS06035102
R23
RS06035103
R5, 8, 11, 14, 15, 19, 31 RS06035104
R3
RS06035184
R2
RS06035185
R28
RS06035223
R9, R18
RS06035471
R7, R13
RS06035473
R1
RS06035625
R6
RS06035681
R27
RSVN0805223
T1, T2, T4, T6- T8
TSBC807-25W
T3
TSBSS138
PCB
P-227.02.05/06/07
B2270901
Description
Sound Transducer MMX-10M
SMD Capacitor 0603 NP0 15pF
SMD Capacitor 0603 X7R 22nF
SMD Capacitor 0603 X7R 47nF min.16V
SMD Capacitor 0603 Y5V 100nF
SMD Capacitor 0603 Y5V 1µF
10V
SMD Capacitor 0805 NP0 1nF
SMD Capacitor 0805 X7R 100nF
SMD DLC 200mF EECEN0F204B
SMD Tantalum A 10µF 10V
SMD Tantalum B 47µF 6V
SMDTantalum C 100µF 6.3V
SMD Diode BAS16 "W"
SOT323
SMD Diode BAT 54 "W" SOT323
SMD Zener Diode BZX84C2V4 SOT23
SMD Zener Diode BZX84C5V6 SOT23
SMD Plug 11pole
01: Shielding Cover LX2-Decoder
SMD E²PROM CAT24WC256KI-1.8
SMD IC MIC2571-1 BMM T&R MSOP
SMD IC PCF 8563 T/F4
S08
SMD IC UPD78F0034AYGK-9ET TQFP
Vibrator Motor FM-109K1D+Var+Holder
SMD Coil 0603 10% 1µH
SMD Coil LK3216100M 10µH
SMD Inductor 180µH SDS0604-181K
LX2 LCD Assembly
ITI SMD Lamp axial ""R01""
Cylind. Crystal 3.6864 MHz 3x9mm
Cylind. Crystal 32.768kHz TC2x6
SMD Resistor 0603 5% 100R
SMD Resistor 0603 5% 1k0
SMD Resistor 0603 5% 10k
SMD Resistor 0603 5% 100k
SMD Resistor 0603 5% 180k
SMD Resistor 0603 5% 1M8
SMD Resistor 0603 5% 22k
SMD Resistor 0603 5% 470R
SMD Resistor 0603 5% 47k
SMD Resistor 0603 5% 6M2
SMD Resistor 0603 5% 680R
SMD NTC Resistor 0805 22k
SMD Trans. BC807-25 "W" SOT323
SMD Trans. BSS138
SOT23
LP 227.02.05/06/07 Decoder LX2
Content is subject to change without notice!
35
LX2 plus / advanced and LX4 plus / advanced
5.7
B2270901
Decoder Schematic PCB No. 227.01.xx
Content is subject to change without notice!
36
LX2 plus / advanced and LX4 plus / advanced
5.8
B2270901
Parts Location Decoder PCB No. 227.01.xx
Content is subject to change without notice!
37
LX2 plus / advanced and LX4 plus / advanced
5.9
Bill OF Material Decoder Board PCB No. 227.01.xx
Item
Part Number
H1
AS5002811Y04
C9
CS0603NP0150
C7, C8
CS0603NP0220
C14, C16
CS0603NP0270
C24
CS0603X7R223
C1, C20, C22
CS0603Y5V104
C3, C6, C11-C13, C15, C19 CS0603Y5V105
C4
CS0805NP0102
C5
CS0805X7R104
C2
CSSEECEN0F204B
C17, C18
CSTAA10610
C23
CSTAB4766
C21
CSTAC1076
D3, D5, D7
DSDBAS16W
D4, D6
DSDBAT54W
D8
DSZBZX84C2V4
D10
DSZBZX84C5V6
ST1
ESFCI9190131411
GGM227.17.01
GGM227.29.01
GGM227.30.01
On H1
GGM468.28.01
IS4
ICSCAT24WC256KI1.8
IS5
ICSMIC2571-2BMM
IS1
ICSPCF8563TF4
IS7, IS8
ICSS80820CNMC-B8F-T2
IS2
ICSUPD78F0034AY
IS6
ICSUPD78F9116BM
VIB1 (secured by UHU
JSVM1.3VK1DVH
plus)
L1
LSLK16081R0K
L2
LSLK3216100M106
L3 (secured by UHU plus) LSSDS0604-181K
OKLCDM227.11.01
H2, H3
OSLA6504414R01
Q2, Q3
QKQ3.6864TC39
Q1
QKQ32.768KHZ2X6
R40
RS06035100
R10, R24
RS06035101
R16, R20-R22
RS06035102
R23, R32, R33
RS06035103
R8, 14, 15, 19, 25, 31
RS06035104
R17
RS06035105
R2
RS06035185
R9, R18
RS06035471
R1
RS06035625
R6
RS06035681
T2, T6, T7
TSBC807-25W
PCB
P-227.01.02
B2270901
Description
Sound Transducer MMX-10M
SMD Capacitor 0603 NP0 15pF
SMD Capacitor 0603 NP0 22pF 5%
SMD Capacitor 0603 NP0 27pF 5%
SMD Capacitor 0603 X7R 22nF
SMD Capacitor 0603 Y5V 100nF
SMD Capacitor 0603 Y5V 1µF
10V
SMD Capacitor 0805 NP0 1nF
SMD Capacitor 0805 X7R 100nF
SMD DLC 200mF EECEN0F204B
SMD Tantalum A 10µF 10V
SMD Tantalum B 47µF 6V
SMD Tantalum C 100µF 6.3V
SMD Diode BAS16 "W"
SOT323
SMD Diode BAT 54 "W" SOT323
SMD Zener Diode BZX84C2V4 SOT23
SMD Zener Diode BZX84C5V6 SOT23
SMD Plug 11pole
01: Shielding Cover LX2-Decoder
LCD Reflector Foil
LCD Light Diffusor
Pager adhesive shock pad
SMD E²PROM CAT24WC256KI-1.8
SMD-IC MIC2571-2 BMM T+R MSOP
SMD-IC PCF 8563 T/F4
S08
SMD-IC S-80820CNMC-B8F-T2 SOT23-5
SMD-IC UPD78F0034AYGK-9ET TQFP
SMD-Contr. µPD78F9116BMC-5A4
Vibrator Motor FM-109K1D+Var+Holder
SMD Coil 0603 10% 1µH
SMD Coil LK3216100M 10µH
SMD Inductor 180µH SDS0604-181K
LCD LX2 Assembly
ITI SMD Lamp ""R01""
Cylind. Crystal 3.6864 MHz 3x9mm
Cylind. Crystal 32.768kHz TC2x6
SMD Resistor 0603 5% 10R
SMD Resistor 0603 5% 100R
SMD Resistor 0603 5% 1k0
SMD Resistor 0603 5% 10k
SMD Resistor 0603 5% 100k
SMD Resistor 0603 5% 1M
SMD Resistor 0603 5% 1M8
SMD Resistor 0603 5% 470R
SMD Resistor 0603 5% 6M2
SMD Resistor 0603 5% 680R
SMD Trans. BC807-25 "W" SOT323
PCB 227.01.02 Decoder LX2
Content is subject to change without notice!
38
LX2 plus / advanced and LX4 plus / advanced
5.10
B2270901
Decoder Schematic
PCB No. 230.01.xx
Content is subject to change without notice!
39
LX2 plus / advanced and LX4 plus / advanced
5.11
B2270901
Parts Location Decoder
PCB No. 230.01.xx
Content is subject to change without notice!
40
LX2 plus / advanced and LX4 plus / advanced
5.12
Bill OF Material
Item
PCB No. 230.01.xx
Part Number
C1, C20, C22
CS0603Y5V104
C14, C16
CS0603NP0270
C17, C18
CSTAA10610
C2
CSSEECEN0F204B
C21
CSTAC1076
C23
CSTAB4766
C24
CS0603X7R223
C3, C6, C11 - C13, C15, C19 CS0603Y5V105
C4
CS0805NP0102
C5
CS0805X7R104
C7, C8
CS0603NP0220
C9
CS0603NP0150
D10
DSZBZX84C5V6
D3, D5, D7
DSDBAS16W
D4, D6
DSDBAT54W
D8
DSZBZX84C2V4
H1
AS5002811Y04
H2, H3
OSLA6504414R01
IS1
ICSPCF8563TF4
IS2
ICSUPD78F0034AY
IS4
ICSCAT24WC256KI1.8
IS5
ICSMIC2571-2BMM
IS6
ICSUPD78F9116BM
IS7, IS8
ICSS80820CNMC-B8F-T2
L1
LSLK16081R0K
L2
LSLK3216100M106
L3
LSSDS0604-181K
LCD1
OKLCDM230.02.01
Q1
QKQ32.768KHZ2X6
Q2, Q3
QKQ3.6864TC39
R1
RS06035625
R10, R24
RS06035101
R16, R20 - R22
RS06035102
R17
RS06035105
R2
RS06035185
R23, R32, R33
RS06035103
R40
RS06035100
R6
RS06035681
R8, R14, R15, R19, R25, R31 RS06035104
R9, R18
RS06035471
ST1
ESFCI9190131411
T2, T6, T7
TSBC807-25W
GGM227.17.01
VIB1
JSVM1.3VK1DVH
B2270901
Description
SMD Capacitor 0603 Y5V 100nF
SMD Capacitor 0603 NP0 27pF 5%
SMD Tantalum A 10µF 10V
SMD DLC 200mF EECEN0F204B
SMD Tantalum C 100µF 6.3V
SMDTantalum B 47µF 6V
SMD Capacitor 0603 X7R 22nF
SMD Capacitor 0603 Y5V 1µF
10V
SMD Capacitor 0805 NP0 1nF
SMD.Capacitor. 0805 X7R 100nF
SMD Capacitor 0603 NP0 22pF 5%
SMD Capacitor 0603 NP0 15pF
SMD Zener Diode BZX84C5V6 SOT23
SMD Diode BAS16 "W"
SOT323
SMD Diode BAT 54 "W" SOT323
SMD Zener Diode BZX84C2V4 SOT23
Sound Transducer MMX-10M
ITI SMD Lamp ""R01""
SMD IC PCF 8563 T/F4
S08
SMD IC UPD78F0034AYGK-9ET TQFP
SMD E²PROM CAT24WC256KI-1.8
SMD IC MIC2571-2 BMM T+R MSOP
SMD Controller µPD78F9116BMC-5A4
SMD IC S-80820CNMC-B8F-T2 SOT23-5
SMD Coil 0603 10% 1µH
SMD Coil LK3216100M 10µH
SMD-Inductor 180µH SDS0604-181K
LX4 LCD Assembly
Cylind. Crystal 32.768kHz TC2x6
Cylind. Crystal 3.6864 MHz
447.1/03, max. 3,2x10.5 mm
SMD Resistor 0603 5% 6M2
SMD Resistor 0603 5% 100R
SMD Resistor 0603 5% 1k0
SMD Resistor 0603 5% 1M
SMD Resistor 0603 5% 1M8
SMD Resistor 0603 5% 10k
SMD Resistor 0603 5% 10R
SMD Resistor 0603 5% 680R
SMD Resistor 0603 5% 100k
SMD Resistor 0603 5% 470R
SMD Plug 11pole
SMD Trans. BC807-25 "W" SOT323
01: Shielding Cover LX2-Decoder
Vibrator Motor FM-109K1D+Var+Holder
Content is subject to change without notice!
41
LX2 plus / advanced and LX4 plus / advanced
B2270901
Content is subject to change without notice!
* optional placement
PCB No. 228.01.xx
BR1 = close after flash programming
BR2 open = relay active until reset
BR2 closed = relay active for 10s
Charger Unit Schematic
Flash programming
5.13
42
LX2 plus / advanced und LX4 plus / advanced
5.14
Parts Location Charger Unit
PCB No. 228.01.xx
Component side
Solder Side
__________________________________________________________________________
B2270901
Content is subject to change without notice!
43
LX2 plus / advanced and LX4 plus / advanced
5.15
Bill Of Material Charger Unit
Item
Part Number
FA-M228.01.01
GGM225.02.xx
BU 1
ESVBUKLDSMT0202
BU 2
ESDIMAB5SH
BU 3
ESBNCBU9050
C1
CS0603NP0102
C2
CS0805X7R104
C3
CS0805NP0102
C 4, C 5
CS0603NP0220
C6
CS0603Y5V105
C7
CS0805X7R105
C8
CS0805X7R104
C9
CSTAA10610
C 10, C 11
CS0603NP0102
C 12
CKE5.010816
C 13
CS0805X7R104
D1
DSDBAV99
D2
DSDBAS19
D3
DSDBAR43
D4
OSLEDQTLP650C4T
D7
DSZSMBJ15C
D8
OSLEDQTLP650C2T
D9
OSLEDQTLP650C3T
D 10
DSDBAR43
D 11
DSZBZX84C2V7
D 12
DSDBAS19
IS 1
ICSUPD78F9116AM
IS 2
ICSSCI7710YDAT1
L1
LSSIMID02223
L 2, L 3, L 4, L 5 LSSIMID02335
Q1
QKQ4.9152TC39
R1
RS08055102
R2
RS06035103
R3
RS06035101
R4
RS08055473
R5
RS06035103
R6
RS06035101
R7
RKL4702
R8
RS06035274
R9
RS06035154
R 10
RS06035101
R 12
RS06035102
R 13
RS06035223
R 14
RS08055104
R 15,
RS06035103
R 16
RS06035104
R 17
RS06035103
R 18
RS08055473
R 19
RS06035102
B2270901
PCB No. 228.01.xx
Description
Antenna Loop
01: Shielding Cover
SMD Power Socket, KLD 0201L-B
DIN Socket, MAB 5 SH
BNC Socket 90°, 50 Ohm, PCB Mount
SMD Capacitor 1nF, 0603 NP0
SMD Capacitor 100nF, 0805 X7R
SMD Capacitor 1nF, 0805 NP0
SMD Capacitor 22pF, 0603 NP0
SMD Capacitor 1µF, 10V, 0603 Y5V
SMD Capacitor 1µF, 0805 X7R
SMD.Capacitor 100nF, 0805 X7R
SMD Tantalum A, 10µF, 10V
SMD Capacitor 1nF, 0603 NP0
Electrol. Capacitor 1000µF, 16V
SMD Capacitor 100nF, 0805 X7R
SMD Diode, BAV99, SOT23
SMD Diode, BAS19
SMD Diode, BAR43
SMD LED, green
SMD Transzorb Diode, SMBJ15CA
SMD LED, red
SMD LED, yellow
SMD Diode, BAR43
SMD Zener Diode, BZX84C2V7, SOT23
SMD Diode, BAS19
SMD IC, µPD78F9116AMC-5A4
SMD IC, SCI7710YDA/S-81230SGUP
SMD Coil, 22nH, SIMID02
SMD Coil, 3.3µH, SIMID02
Cylind. Crystal, 4.9152 MHz, 3x9mm
SMD Resistor 1k0, 0805 5%
SMD Resistor 10k, 0603 5%
SMD Resistor 100R, 0603 5%
SMD Resistor 47k, 0805 5%
SMD Resistor 10k, 0603 5%
SMD Resistor 100R, 0603 5%
Power Resistor , 47R 2W, PR 02
SMD Resistor 270k, 0603 5%
SMD Resistor 150k, 0603 5%
SMD Resistor 100R, 0603 5%
SMD Resistor 1k0, 0603 5%
SMD Resistor 22k, 0603 5%
SMD Resistor 100k, 0805 5%
SMD Resistor 10k, 0603 5%
SMD Resistor 100k, 0603 5%
SMD Resistor 10k, 0603 5%
SMD Resistor 47k, 0805 5%
SMD Resistor 1k0, 0603 5%
Content is subject to change without notice!
44
LX2 plus / advanced and LX4 plus / advanced
B2270901
Item
Part Number
Description
R 20
R 22
R 23
R 24
R 30
R 35
R 38
R 39
R 43
R 44
R 45
R 46
R 47
R 48
R 49
REL 1
SI 1
ST 2
T1
T3
T4
T 6, T 10, T 11
T 13
RK0207130R0
RKVVS05K14
RS12065560
RS12065680
RS08055470
RS06035222
RS06035103
RS06035473
RS12065270
RS08055473
RS06035152
RS06035473
RS06035102
RS06035101
RS08055332
ERA5WK
SI0.375AELU1206
ESJSTB3BEHA
TSBCX51
TSBC857C
TSBCP54GEG
TSBC857C
TSBC847C
Resistor, 30R0, 0207, 1%
Varistor, S05 K14, Q69X3422
SMD Resistor 56R, 1206 5%
SMD Resistor 68R, 1206 5%
SMD Resistor 47R, 0805 5%
SMD Resistor 2k2, 0603 5%
SMD Resistor 10k, 0603 5%
SMD Resistor 47k, 0603 5%
SMD Resistor 27R, 1206 5%
SMD Resistor 47k, 0805 5%
SMD Resistor 1k5, 0603 5%
SMD Resistor 47k, 0603 5%
SMD Resistor 1k0, 0603 5%
SMD Resistor 100R, 0603 5%
SMD Resistor 3k3, 0805 5%
Relay, A-5-W-K, Takamisawa
SMD Fuse 0.375A, F1206A0R375FWR
3pin Interconnect B 3B-EH-A
SMD Transistor, BCX51
SMD Transistor, BC857C, SOT23
SMD Transistor, BCP 54
SMD Transistor, BC857C, SOT23
SMD Transistor, BC847C, SOT23
Content is subject to change without notice!
45
5.16
B2270901
Charging Unit Schematic
Content is subject to change without notice!
BR1 open = flash programming
BR1 closed = normal operation
BR2 open = relay active until reset
BR2 closed = relay active for 10s
* optional placement
Programming
LX2 plus / advanced and LX4 plus / advanced
PCB No. 228.06.xx
46
LX2 plus / advanced and LX4 plus / advanced
5.17
B2270901
Parts Location Charging Unit
PCB No. 228.06.xx
Content is subject to change without notice!
47
LX2 plus / advanced and LX4 plus / advanced
5.18
Bill Of Material Charging Unit
Item
BU1
BU2
BU3
C1,10,11
C12
C2,8,13
C3
C4,5
C6
C9
D1
D2
D3,10
D4
D7 not placed
D8
D9
IS1
IS2
L2,4,5
Q1
R1
R16
R2,13,15,17,41
R20
R22 not placed
R3,6,10,33,48
R30
R31
R32
R34,54
R35,55
R45,53
R46
R47,50,51,52
R49
R56 not placed
R57
R58
R59
R7
R8
R9
Rel1
SI1
ST2
T1, 52, 53
T3
T4
T50, 51
T6
B2270901
PCB No. 228.06.xx
Part Number
Description
ESVBUKLDSMT0202
ESDIMAB5SH
ESBNCBU9050
CS0603NP0102
CKE5.010816
CS0805X7R104
CS0805NP0102
CS0603NP0220
CS0603Y5V105
CSTAA10610
DSDBAV99
DSDBAS19
DSDBAR43
OSLEDQTLP650C4T
DSZSMBJ15C
OSLEDQTLP650C2T
OSLEDQTLP650C3T
ICSUPD78F9116AM
ICSSCI7710YDAT1
LSSIMID02335
QKQ4.9152TC39
RS08055102
RS06035104
RS06035103
RK020713R3
RKVVS05K14
RS06035101
RS08055470
RSVN0805223
RS06035223
RS06035683
RS06035333
RS06035152
RS06035473
RS06035102
RS08055332
RS080550R0
RKL2R21
RKL33R02
RKL1211
RKL10R02
RS06035274
RS06035154
ERA5WK
SI0.375AELU1206
ESJSTB3BEHA
TSBCX51
TSBC857C
TSBCP54GEG
TSBCX54
TSBC847C
GGM225.02.XX
FA-M228.01.01
SMD Power Socket KLD 0201L-B
DIN Socket MAB 5 SH
BNC Socket 90°,50 Ohm,PCB Mount
SMD Capacitor 0603 NP0 1nF 5%
Electrol. Capacitor 5.0 1000µF 16V
SMD Capacitor 0805 X7R 100nF
SMD Capacitor 0805 NP0 1nF
SMD Capacitor 0603 NP0 22pF
SMD Capacitor 0603 Y5V 1µF 10V
SMD Tantalum A 10µF 10V
SMD Diode BAV99
SOT23
SMD Diode BAS19
SMD Diode BAR43
SMD LED green QTLP650C-4TR
SMD Transzorb Diode SMBJ15CA
SMD LED red QTLP650C-2TR
SMD LED yellow QTLP650C-3TR
SMD Controller µPD78F9116AMC-5A4
SMD IC SCI7710YDA/S-81230SGUP
SMD Coil SIMID02 3,300µH
Cylind. Crystal 4.9152 MHz 3x9mm
SMD Resistor 0805 5% 1k0
SMD Resistor 0603 5% 100k
SMD Resistor 0603 5% 10k
Resistor 0207 1% 3R30
Varistor 5.0 S05 K14 Q69X3422
SMD Resistor 0603 5% 100R
SMD Resistor 0805 5% 47R
SMD NTC Resistor 0805 22k
SMD Resistor 0603 5% 22k
SMD Resistor 0603 5% 68k
SMD Resistor 0603 5% 33k
SMD Resistor 0603 5% 1k5
SMD Resistor 0603 5% 47k
SMD Resistor 0603 5% 1k0
SMD Resistor 0805 5% 3k3
SMD Resistor 0805 0R0
Power Resistor 2R2 1W PR01
Power Resistor 33R0 2W PR2
Power Resistor 120R 1W PR01
Power Resistor 10R0 2W PR2
SMD Resistor 0603 5% 270k
SMD Resistor 0603 5% 150k
Relay A-5-W-K Takamisawa
SMD Fuse 0A375 F1206A0R375FWR
3pin Interconnect B 3B-EH-A
SMD Trans. BCX51
SMD Trans. BC857C SOT23
SMD Transistor BCP 54
SMD Trans. BCX54
SMD Trans. BC847C SOT23
01: Shielding Cover Decoder
Antenna Loop Charger LX2
Content is subject to change without notice!
48
LX2 plus / advanced and LX4 plus / advanced
6
Description Of Testmode
Starting Testmode :
Turn off the pager,
Press button Ù , press button Ú , press button × , press button Ù
Test Steps in Testmode:
Press button Õ to start the next test step.
The contrast of the LCD can be altered during Testmode by pressing buttons Ù and Ú.
Test Step
1
Display
Line 1: Serial Number
Line 2: Frequency
2
Firmware Issue,Controller Crystal,
Addition. Info
3
Display Test: checked pattern 1
4
Display Test: checked pattern 2
5
Display Test: checked pattern 1
6 (inside charger only) Display Test: checked pattern 2
7 (inside charger only) Display Test: checked pattern 1
8
off
B2270901
Function
Testing the sound transducer (2s)
Testing Vibrator (2s)
Turn backlight on
Turn backlight off
Start Testing Charger Alert
Stop testing Charger Alert
Testmode turned off,
Pager turned off
Content is subject to change without notice!
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