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FM TRANSCEIVER
UBZ-LJ8
SERVICE MANUAL
© 2002-12 PRINTED IN JAPAN B51-8644-00 (N) 506
Cap (SP/MIC) (B09-0673-03) Knob (VOL) (K29-9258-03)
CONTENTS
CIRCUIT DESCRIPTION ............................ 2 COMPONENTS DESCRIPTION ................ 7 TERMINAL FUNCTION ............................. 7 SEMICONDUCTOR DATA ........................ 8 PARTS LIST ............................................... 9 EXPLODED VIEW .................................... 13 PACKING ................................................. 14 ADJUSTMENT ........................................ 15 PC BOARD TX-RX UNIT (X57-6672-70) (A/2) ....... 20 TX-RX UNIT (X57-6672-70) (B/2) ....... 24 SCHEMATIC DIAGRAM .......................... 26 BLOCK DIAGRAM ................................... 30 LEVEL DIAGRAM .................................... 32 UBC-4 (BATTERY CHARGER) ................ 33 UPB-1 (BATTERY PACK) ........................ 33 SPECIFICATIONS ................. BACK COVER
Antenna (T90-1016-05)
Front glass (B10-2742-03) : B (B10-2748-03) : SL,Y Button knob (PTT) (K29-9257-03)
Key top (4 keys) (K29-9256-02)
Cabinet assy (Front) (A02-3794-03) : B (A02-3795-03) : Y (A02-3796-03) : SL
B : Black Y : Yellow SL : Silver
UBZ-LJ8
CIRCUIT DESCRIPTION
Frequency Configuration
ANT Simplex 446.00625~446.09375MHz LPF BPF 446MHz ANT SW RF AMP Simplex 424.30625~ 424.39375MHz RF AMP RF AMP RF AMP 1st MIX 21.7MHz MCF MIX, IF DET AF AMP SP
ANT
3T
3R
D8
LPF L32
L31
Q9
21.25MHz MIC PLL VCO MIC AMP 21.25MHz
1st local OSC VCO Q10 3R
D10
XF1
FM IC
Q11
Simplex 446.00625~ 446.09375MHz
3R
TCXO
Fig. 3 Receiver front end and Mixer circuit
Fig. 1 Frequency configuration
Reception method Double super heterodyne 1st IF frequency 2nd IF frequency Transmission method Modulation 21.7MHz (Lower) 450kHz (Lower) Item Nominal center frequency (fo) Pass bandwidth Attenuation bandwidth Ripple Insertion loss Ultimate attenuation 21.7MHz ± 3.75kHz or more at 3dB ± 14kHz or less at 40dB 1dB or less 3.5dB or less 80dB or more (fo ± 910kHz) 40dB or more (fo ± 1MHz) 850± 5% // 5pF± 0.5pF Rating
VCO direct amplification Variable reactance phase modulation
Table 1
Receiver System
Front End
The high-frequency signal received from antenna passes through a LPF (Low pass filter : components between ANT and C73) to filter out unwanted high frequency signal. A switch diode system (D8, L32 and D10) allows this signal to pass through and enters the BPF (Band pass filter : L31) to eliminate unwanted signal when receiving. The resulting signal is amplified by high-frequency amplifier (Q9) and goes to the first mixer (Q10).
Spurious responses Terminating impedance
Table 2
MCF (L71-0616-05) : TX-RX Unit XF1
Item Rating 450kHz ± 4.5kHz or more ± 10kHz or less 3dB or less 40dB or more 4dB or less 2.0k± 10%
Nominal center frequency (fo) 6dB bandwidth 50dB bandwidth Ripple (450kHz ± 3kHz) Guaranteed attenuation (± 100kHz) Insertion loss I/O matching impedance
First Mixer
The amplified signal that reaches Q10 is mixed with the first local signal from a VCO to produce a first IF signal (21.7MHz). (Receive frequency First local frequency = First IF frequency = 21.7MHz) The first IF signal passes through MCF (Monolithic crystal filter) XF1 to eliminate unwanted components. The first IF signal is amplified by IF amplifier (Q11) before going into FM IC (IC2).
ANT LPF D8,D10 L32 ANT SW 446MHz BPF L31 RF AMP 1st MIX Q10 Q9
Table 3 Ceramic filter (L72-0974-05) : TX-RX Unit CF1
MCF XF1
IF AMP Q11
FM IC IC2 MIX, DET
AF AMP IC203
SP
21.7MHz 1st local OSC (PLL) 2nd local OSC
2
Fig. 2 Receiver section configuration
UBZ-LJ8
CIRCUIT DESCRIPTION
IF Amplifier Squelch Circuit
The IF circuit consists of FM IC (IC2). This IC contains A squelch circuit is provided to prevent interference from local line input buffer, Mixer, FM DET and audio frequency noise or weak signal being output to the speaker during nonamplifier. transmitting state. The First IF signal that comes from IF amplifier (Q11) then This circuit contains an amplifier (Q13) and a rectifier goes into the FM IC mixer. It is mixed with second local fre(D11). The amplifier amplifies noise signals from FM detecquency (21.25MHz) that comes from the PLL IC reference tion output and passes them to a rectifier. oscillation crystal so as to produce a second IF signal. When there is no signal or weak signal being received, the (21.7MHz 21.25MHz = 2nd IF = 450kHz) FM IC detection will output high frequency noise and the recThe 2nd IF signal then enters to ceramic filter (CF1) in ortifier will output high voltage level. When strong signal is der to eliminate unwanted components. The filtered signal is received, the FM IC detection noise is suppressed and the amplified by a limiter-amplifier, which consists of 6 differenrectifier output voltage level will be low. tial amplifiers, to eliminate AM signal from 2nd IF. MPU compares this rectifier output level to a predeterThe FM detector acts as a quadrature discriminator. The mined level so as to determine when to turn on the speaker. phase of the output signal from the limiter is shifted by 90 Noise amplifier (Q13) and rectifier (D11) are used here indegrees by a quad coil (L36). This output signal is compared stead of FM IC internal circuit to prevent temperature tolerwith the original non-shifted waveform to produce FM detecance. tion output. 1st IF input
3R D11 BUSY 1
16 15 14 13 12 11 10 9
(21.7MHz) Quad coil
L36
3R AF OUT
Q13 MIX RSSI 2
RSSI QUAD DET Noise AMP
LPF
IC208 MPU
Batt
Buff Q216 IC203 AF AMP AF IN SP
1
OSC
2 3 4
IF AMP
INV
7 8
5
6
SP AMP
10 Q220
IC2 FM IC
2nd local OSC 21.25MHz CF1 PLL IC 450kHz
Fig. 4 IF amplifier and Squelch circuit AF Amplifier
The FM detection output signal passes through the base band IC (IC209) which consists of band pass filter (300Hz~3kHz), de-emphasis circuit and amplifier. Next, the signal is passed to the volume control potential meter VR201 and then goes into the audio power amplifier (IC203) which drives the speaker to produce audio output.
20 RXAF AMP BPF IC209 : Base band IC De-emphasis AMP 23 RXIN AFOUT
VR201 IC203 AF AMP Q217 C206 + Q219
SP
Loudness ON/OFF Circuit
Loud On/Off switching circuit is controlled by AF switch (Q217,Q219,Q218). When Loud on, Q217 is On Q218 is Off. When Loud off, Q217 is off Q218 is on. When the SP/MIC option is inserted, Loud circuit becomes Off automatically.
BTL SP AMP
SP MUT Q218
Fig. 5 AF amplifier and Loudness on/off circuit
3
UBZ-LJ8
CIRCUIT DESCRIPTION
Transmitter System
Microphone Amplifier Circuit
The audio signal acquired from the microphone (MIC200) passes through the MIC amplifier (IC204) to perform signal amplification. An AGC (Automatic gain control) circuit is included to maintain output audio signal level. The amplified signal passes through the amplifier, preemphasis circuit, limiter and Splatter filter contained inside base band IC (IC209) and reaches the VCO as modulation signal. The splatter filter will eliminate the distortion components outside the audio band.
MIC Q201 VOX AMP D203 4 VOX IC208 MPU
IC204 MIC AMP
Fig. 8 VOX circuit Transmission Output Circuit
The VCO output is amplified by a high-frequency amplifier circuit (Q14, Q7 and Q8). The resulting signal will pass through a high-frequency antenna switch (D8), a low pass filter before being transmitted by the antenna. The output power is about 500mW with 4.5V DC supply at battery terminal.
Modulation Circuit
The output signal of the base band IC passes through VR1 for Max Deviation Adjustment and goes to the modulation input of the VCO circuit for a variable reactance phase modulation.
IC204 MIC AMP Q2,Q4,Q6 VCO Q7 RF AMP
Low Pass Filter Circuit
A three-stage low-pass filter is located between the antenna and the antenna switch circuit. It helps to remove the harmonic components that is generated by transmission circuit.
3T 3T 3T
VR4
MIC
VR1
Q14 RF AMP Q8 RF AMP ANT SW ANT LPF
B
ANT
D8
LPF
Fig. 6 Transmitter section configuration
MIC IC204 MIC AMP
Q14
Q7
Q8
Fig. 9 Transmission output circuit
Q200 AGC
PLL System
VCO Circuit
BPF AMP Limiter 7 MOD VCO
AMP 3 TX IN Preemphasis
Splatter filter
IC209 : Base band IC
Fig. 7
Microphone amplifier circuit
VOX Circuit
After amplified by MIC amplifier (IC204), MIC signal passes through VOX amplifier (Q201) to eliminate signal which is out of frequency range 300Hz~2.5kHz. The resulting signal goes into rectifier (D203) and converts into DC level. This DC level is compared with preset value in MPU. If the level is higher than preset, MPU will start transmitting.
The VCO circuit is housed in a shielding case. The VCO circuit consists of a oscillation transistor (Q2), a variable capacitor diode (D2) for frequency control, a variable capacitor diode (D3) for variable reactance modulation, transmit/receive frequency switch diode (D1), control switch (Q1), ripple filter (Q3) and buffer amplifier (Q4). The oscillation frequency is mainly determined by C12, C13, D2 and L3 (TX) or L3 and L2 (RX). D3 is used for modulation. In RX mode, the TX/RX switch line goes low; switch Q1 and D1 turn off. The inductor L2 will be connected to oscillation circuit and Q2 will produce the first local frequency for reception purpose. (Receiving channel frequency subtracted by 21.7MHz equals to the receive frequency.) In TX mode, the TX/RX switch line goes high; switch Q1 and D1 turn on. The inductor L2 is bypassed to ground through C2, D1 and C3. Q2 oscillation frequency becomes about 446MHz and the VCO will output the frequency which is needed for transmission. The ripple filter (Q3) produces a 2.4V voltage supply for the oscillation transistor (Q2). D4 is used for speeding up the ripple filter operation when 3C line turns on.
4
D10
VCO
UBZ-LJ8
CIRCUIT DESCRIPTION
C12 R3 LV D1 L1 C2 L3 C4 Q2 C15 R16 C26 VCO output
L4
R11
D2
C7
R10
R12
C10
C13
C9
R15
R2
D3
R7
L2
L6
R5
R4
Q4
C3
C5
R8
R13
C8
R9
C19
L5 Q3
R17
L9
R14
R6 C6
C16
D4
Q1 TX/RX 3C
MOD
Fig. 10 VCO circuit PLL Circuit
Frequency data is sent to the PLL IC (IC1) from MPU (IC208) through common data line either when the set is powered on, or when channel is changed, or when transmit is required. This data sets the dividers and CP (Charge Pump) of PLL IC. The TCXO (X1) produces a 21.25MHz reference frequency and passes to PLL IC. Reference frequency is divided to produce a 12.5kHz for comparison of frequency inside PLL IC. The VCO output frequency is also passed to the PLL IC via Fin. The divider of the PLL IC, which is set by MPU, also divides this frequency. These two frequencies will be compared by the phase comparator circuit of PLL IC so as to detect the phase difference. From the phase detection results, charge pump will be able to output the PWM (Pulse Width Modulation) pulse. This output voltage will then be used to control the VCO frequency through PLL Loop Filter. This control voltage passes through the loop filter which is applied at the VCO control pin to control the oscillation frequency. Basically, the loop filter removes unwanted harmonics and noise produced at the output of the charge pump. It also determines the PLL response by synchronizing the amplitude and phase characteristics.
C22
+
Control System
Reset Circuit
When a battery is inserted, the MPU power supply provides the operating voltage after about 0.5sec. The reset IC (IC202) output a low signal to reset the MPU so that MPU starts to work correctly. When battery voltage is lower than 3.0V (set working voltage limits) or battery is removed, another reset IC (IC206) will send a reset to MPU so as to prevent this unit from working under non-guarantee low voltage condition.
Battery Voltage Indication Circuit
The unit contains a battery voltage detection circuit. This circuit monitors battery voltage every half second and displays bars on LCD to indicate the battery level. Once battery voltage drops below 3.2V, indicator will start flashing on LCD and TX operation inhibits.
B 3M Q215 3C Q212 3R Q210 IC206 60 BATTL 63 IC202 14 RESET VCC IC208 MPU 47 3TC 48 3RC 49 SAVE 46 3MC 8 VR4 PA 3T Q211 3MS
IC207
Unlock Detection Circuit
If the PLL cannot synchronize for some reason during operation, the PLL IC will output a low voltage level signal at LD (pin 5) to the MPU. MPU will stop transmitting or receiving to prevent wrong frequency transmitted or received.
Loop filter + + IC1 PLL IC LV (Lock Voltage) VCO 1 Fin1 LD STB DATA CK 5 3C 3C IC208 54 MPU UL PLL DATA (MPU) + 3 CP1 Xin 11 X1 TCXO Vcon
BATT
Fig. 12 Reset, battery voltage indication and Power supply circuit
3C,T/R,MOD VCO out
Fig. 11
PLL circuit
5
UBZ-LJ8
CIRCUIT DESCRIPTION
Power Supply Circuit
The battery voltage directly supplies RF final amplifier (Q8) and AF amplifier (IC203) through AVR (Q216). IC207 supplies 3V voltage to MPU, EEPROM and power key. Switch Q211 delivers 3V supply 3MS to base band IC, MIC amplifier and VOX circuit when necessary. Switch Q215 delivers 3V supply 3C to VCO and PLL circuit during receiving, transmitting or standby. Switch Q212 delivers 3V supply 3R to FM IC, Mixer, RX amplifier and IF amplifier during receiving or standby. Switch Q210 delivers 3V supply 3T to TX amplifier Q14, Q7, TX/RX switch and the power control circuit of Q8.
Internal MIC PTT 3MS IC208 MIC MPU 3 REM R295 SP/MIC DET AFO
If there is no incoming signal or key press after 5 second, unit will enter its power save mode. In power save mode, 3C and 3R will be turned on and off respectively for power saving.
Remote Control Circuit
The voltage at the MPU REM (pin 3) will be converted into a digital signal to carry out remote operation according to the predetermined voltages level. The REM pin is set to about 3V by pull up resistor. When remote control switch is pressed, the voltage divided by the resistor in series with the pull up resistor will generate a voltage for MPU to recognize the operation.
(SMC-34 remote control speaker microphone) External MIC ø3.5 PTT
External SP
SW2 10K 7
Fig. 13
Speaker, microphone jack and Remote control circuit
CTCSS Circuit
The tone frequency is generated by MPU (pin 57). This PWM signal becomes a sinusoidal waveform after passing through a RC low pass network. It will mix with voice signal from base band IC and becomes modulation signal for VCO. During receiving, the QT signal received from FM IC will go through the base band IC so that signal with less than
3R D11
300Hz will be output via IC209 pin 21. Next, it will pass through the low pass filter (IC211) so as to eliminate unwanted noise. Then the filtered tone will be passed to the pin 64 of MPU where the digital filter inside the MPU will detect the tone. If the tone is matched, MPU will turn on the speaker.
Mixer RX AMP BUSY 1 Q13 RSSI 2 12 RSSI 7 FILOUT IC2 FM IC AFOUT 9 23 IC209 Base band IC
57 CTCSS OUT 64 CTCSS IN Batt IC208 MPU 10
1 IC211 5 21 LPF Q216 IC203 AF AMP AF IN SP RC LPF R273 R272
SW3 27K TX AMP VCO
C267
Q220
Fig. 14 6
CTCSS circuit
C266
SP AMP
LOCK SW
ø2.5
SW1 3.9K
UBZ-LJ8
COMPONENTS DESCRIPTION / TERMINAL FUNCTION
TX-RX Unit (X57-6672-70) (A/2) : Control
Ref. No. Q200 Q201 Q210 Q211 Q212 Q213 Q215 Q216 Q217~219 Q220 IC202 IC203 Use/Function MIC Mute Switch VOX Amplifier 3T Switch 3MS Switch 3R Switch Lamp LED switch 3C Switch AF Amplifier AVR AF Switch AF Switch Voltage Detection AF Amplifier 3T (3.0V) 3MS (3.0V) 3R (3.0V) On when lamp LED on 3C (3.0V) Acts as a voltage regulator Internal/external speaker switch Acts as a voltage regulator 2.4V, MPU reset 2 pin : Input, 5 pin : Output 1, 8 pin : Output 2 IC204 IC206 IC207 IC208 IC209 IC210 IC211 D200 D202 D203 D204 D205 D206 D208 D209,210 MIC Amplifier Voltage Detection AVR MPU Baseband IC EEPROM Low Pass Filter Protection Diode MIC Mute Diode Tone Signal Detection Tone Signal Detection Lamp LED Protection Diode Tone Signal Detection Voltage Level Shift Diode Rectification Acts as a zener diode Acts as an OR gate Rectification Rectification LCD back light illumination Audio signal processing Operating data storage CTCSS low pass filter 3 pin : Input, 4 pin : Output 3.0V, MPU reset 3M (3.0V) D4 D5 D8,10 D11 D3 Operation/Condition/Compatibility On when microphone mute Q11 Q13 Q14 IC1 IC2 D1 D2 IF Amplifier Noise Amplifier RF Amplifier PLL IC FM IC RF Switch Variable Capacitance Diode Variable Capacitance Switch Speed Up Diode RF Switch Rectifier For ripple filter Unlock detect Antenna switch Convert noise to DC voltage VCO modulation TX/RX switch VCO frequency control For TX Ref. No. Q10 Use/Function 1st Mixer Operation/Condition/Compatibility RX Frequency 1st local oscillation frequency 1st IF 21.7MHz
TERMINAL FUNCTION
CN1 and CN200
Pin No. Pin Name 1 2 3 4 5 6 7 8 9 GND MOD GND TO GND BUSY GND 3C GND UL 3T CK 3R DT B EP B CRS B AFO Ground Voice modulation line Ground QT tone modulation line Ground RX busy detect Ground 3V power supply for VCO and PLL Ground PLL unlock L : Unlock Function
TX-RX Unit (X57-6672-70) (B/2) : RF
Ref. No. Q1 Q2 Use/Function Switch Oscillator Operation/Condition/Compatibility Off when RX RX : 424.30625~424.39375MHz TX : 446.00625~446.09375MHz Q3 Q4,5 Q6 Q7 Q8 Q9 Ripple Filter Buffer RF Amplifier RF Amplifier RF Power Amplifier RF Amplifier For RX/TX For TX Transmit power For RX
10 11 12 13 14 15 16 17 18 19 20
3V power supply for TX Clock line for PLL IC 3V power supply for RX Data line for PLL IC Battery voltage Enable line for PLL Battery voltage RX carrier level detect Battery voltage RX audio output line
7
UBZ-LJ8
SEMICONDUCTOR DATA
MPU : M38C24M6502HP (IC208)
Pin Function
Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29~44 45 46 47 48 49 50 51 52 53 54 55 Pin Name BUSY RSSI REM VOX TUNE OSCO FLASH (GND) RESET SPM SPAMP GND Xin Xout Vcc MJDET BTLC ESDA ESCL PWR RxD TxD PTT MODE NC COM2 COM1 COM0 NC S15~S0 LAMP 3MC 3TC 3RC SAVE CLK DAT AKDIR PLLE UL UP I/O I I I I I O I O O I O I/O O I I O I I O O O O O O O O O O O O O I I Busy input RSSI input Remote key input VOX input Enter to tuning mode Oscillation output GND Reset input Speaker mute H : Mute H : ON Function Pin No. 56 57 58 59 60 61 62 63 64 Pin Name DOWN QTOUT BEEP MICM BATTL GND VREF BATT QTIN I/O I O O O I I I Function [Down] key input CTCSS output Beep output MIC mute H : Mute
Low battery detection GND 3V reference voltage Battery voltage CTCSS input
Speaker amp switch GND Crystal (3.633MHz) Crystal (3.633MHz) 3V MIC jack detection BTL control EEPROM data EEPROM clock [Power] key input PC interface PC interface [PTT] key input [MODE] key input NC H : ON
1k bit Serial EEPROM : AT24C01A10SI18 or CAT24WC01JI18 (IC210)
Pin Function
Pin No. 1~3 4 5 6 7 8 Pin Name A0~A2 VSS SDA SCL WP VCC Address inputs Ground Serial data Serial clock input Write protect Power supply Function
Reset IC : BD4724G (IC202) and BD4730G (IC206)
Pin Function
Pin No. 1 2 3 4 5 Pin Name NC VEE1 VEE2 OUT VCC NC Reference voltage Reference voltage Output voltage Power supply Function
LCD common signal output (COM2) LCD common signal output (COM1) LCD common signal output (COM0) NC LCD segment output (SEG15~SEG0) Lamp control 3C control 3T control 3R control H : ON L : ON L : ON L : ON L : ON
Audio Power Amplifier : LM4865M (IC203)
Pin Function
Pin No. 1 2 3 4 5 6 7 8 Pin Name VCC VIN HP_SEN DC_VOL/SW VO1 GND BYPASS VO2 Supply voltage input Detection of speaker and mic DC voltage volume control Output 1 Ground Bypass capacitor Output 2 Function
Battery save control Common clock Common data AK2346 DIR PLL IC enable PLL IC unlock [UP] key input
8
UBZ-LJ8
PARTS LIST
New Parts. indicates safety critical components. Parts without Parts No. are not supplied. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Teile ohne Parts No. werden nicht geliefert. L : Scandinavia Y : PX (Far East, Hawaii) Y : AAFES (Europe) K : USA T : England X : Australia P : Canada E : Europe M : Other Areas UBZ-LJ8 (Y50-5762-XX) TX-RX UNIT (X57-6672-70) Ref. No. New Address parts Parts No. Description Destination Ref. No. C15 C16 C17 C18 C19 C20 C22 C23 C25 C26 C27 C28 C29,30 C31 C32 C33 C34 C35 C36-38 C39 C40 C41 C42 C43 C44 C45 C46 C47 C50 C52 C53 C55 C57 C58 C59 C60 C61 C62 C63 C64,65 C66,67 C68 C70,71 C73 C75 K B K K B K B K B J C C77 C79 C80,81 C87 C88 C89 C90 C93 C94 C96 New Address parts Parts No. CC73GCH1H0R5B CK73GB1H471K CC73GCH1H030C CC73GCH1H080D CK73GB1H471K CC73GCH1H030C C92-0712-05 CC73GCH1H050C CK73GB1H471K CC73GCH1H080B CC73GCH1H020B CC73GCH1H030B CK73GB1H471K CK73GB1H182K CC73GCH1H101J C92-0555-05 CK73GB1H102K C92-0005-05 CC73GCH1H101J C92-0695-05 C92-0502-05 CC73GCH1H470J CK73GB1H102K CC73GCH1H101J CC73GCH1H080D CC73GCH1H330J CC73GCH1H080D CK73GB1H471K CK73GB1H471K CC73GCH1H151J CK73GB1H471K CC73GCH1H070B CK73GB1C104K CC73GCH1H100C CC73GCH1H300J CC73GCH1H220J CK73GB1C104K CC73GCH1H300J CK73GB1C104K CK73GB1H471K CK73GB1A105K CC73GCH1H180J CK73GB1H471K CK73GB1H471K CC73GCH1H040B CC73GCH1H050B CC73GCH1H050B CC73GCH1H010B CK73GB1H471K CC73GCH1H030B CK73GB1H471K CC73GCH1H101J CK73GB1H471K CC73GCH1H050C CK73GB1H471K CHIP C CHIP C CHIP C CHIP C CHIP C CHIP C CHIP-TAN CHIP C CHIP C CHIP C CHIP C CHIP C CHIP C CHIP C CHIP C CHIP-TAN CHIP C CHIP-TAN CHIP C CHIP-TAN CHIP-TAN CHIP C CHIP C CHIP C CHIP C CHIP C CHIP C CHIP C CHIP C CHIP C CHIP C CHIP C CHIP C CHIP C CHIP C CHIP C CHIP C CHIP C CHIP C CHIP C CHIP C CHIP C CHIP C CHIP C CHIP C CHIP C CHIP C CHIP C CHIP C CHIP C CHIP C CHIP C CHIP C CHIP C CHIP C Description 0.5PF 470PF 3.0PF 8.0PF 470PF 3.0PF 22UF 5.0PF 470PF 8.0PF 2.0PF 3.0PF 470PF 1800PF 100PF 0.047UF 1000PF 2.2UF 100PF 10UF 0.33UF 47PF 1000PF 100PF 8.0PF 33PF 8.0PF 470PF 470PF 150PF 470PF 7.0PF 0.10UF 10PF 30PF 22PF 0.10UF 30PF 0.10UF 470PF 1.0UF 18PF 470PF 470PF 4.0PF 5.0PF 5.0PF 1.0PF 470PF 3.0PF 470PF 100PF 470PF 5.0PF 470PF B K C D K C 6.3WV C K B B B K K J 35WV K 6.3WV J 10WV 35WV J K J D J D K K J K B K C J J K J K K K J K K B B B B K B K J K C K Destination
UBZ-LJ8
1 1 1 2 2 2 4 5 5 7 8 8 8 12 14 14 14 17 18 20 22 23 24 A C D E B 26 27 3A 3A 3A 1A 1A 1A 3B 1A 1A 2C 3A 3A 3A A02-3788-13 A02-3789-13 A02-3790-13 A02-3794-03 A02-3795-03 A02-3796-03 B09-0673-03 B10-2742-03 B10-2748-03 B62-1669-10 D10-0646-04 D10-0647-04 D10-0648-04 D21-0860-14 E37-0810-15 F07-1871-02 F07-1872-02 F07-1873-02 G53-1557-03 G53-1558-04 J29-0700-03 K29-9256-02 K29-9257-03 K29-9258-03 N09-2291-05 N14-0801-05 N17-1040-46 N67-2005-46 N80-2014-45 T07-0362-05 T90-1016-05 CABINET ASSY (REAR) CABINET ASSY (REAR) CABINET ASSY (REAR) CABINET ASSY (FRONT) CABINET ASSY (FRONT) CABINET ASSY (FRONT) CAP (SP/MIC) FRONT GLASS FRONT GLASS INSTRUCTION MANUAL LEVER LEVER LEVER SHAFT (LEVER) PARALLEL CORD (SP) COVER (BATT) COVER (BATT) COVER (BATT) PACKING (BATT COVER) PACKING (SP/MIC) BELT HOOK KEY TOP (4 KEYS) BUTTON KNOB (PTT) KNOB (VOL) TAPTITE SCREW HEXAGON NUT (ANT) TOOTHED LOCK WASHER (ANT) PAN HEAD SEMS SCREW W (ANT) PAN HEAD TAPTITE SCREW SPEAKER ANTENNA BLACK YELLOW SILVER BLACK YELLOW SILVER BLACK YELLOW SILVER
BLACK SILVER,YELLOW
BLACK YELLOW SILVER
1A 3A 3A 3A 3A 3B 1C 1A 1A 2B 2A,3A 2A 2A 2A 2A,3B 1A 2A
TX-RX UNIT (X57-6672-70)
101 102 D205 C2,3 C4 C5 C6 C7 C8 C9 C10 C12 C13 C14 1B 1B B11-1298-03 B38-0876-05 B30-2143-05 CK73GB1H471K CC73GCH1H3R5B CK73GB1H471K CK73GB1A105K CC73GCH1H0R5B CK73GB1H471K CC73GCH1H030B CK73GB1H471K CC73GCH1H090B CC73GCH1H110J CC73GCH1H050C ILLUMINATION GUIDE LCD LED (YG) CHIP C CHIP C CHIP C CHIP C CHIP C CHIP C CHIP C CHIP C CHIP C CHIP C CHIP C 470PF 3.5PF 470PF 1.0UF 0.5PF 470PF 3.0PF 470PF 9.0PF 11PF 5.0PF
9
UBZ-LJ8
PARTS LIST
TX-RX UNIT (X57-6672-70) Ref. No. C98,99 C101 C102 C103 C105 C106 C107 C108 C109 C110 C112 C113 C114 C115 C116,117 C118 C122 C124,125 C127 C128 C129 C130-133 C134 C135 C136 C138 C140,141 C142 C143 C144 C146 C147 C148 C149 C150 C152,153 C201 C206 C208 C209 C210 C211 C212 C220 C221,222 C224 C225 C226 C227 C228,229 C233-235 C236 C237 C238,239 C240-242 C243,244 C245 C246 C247 C248,249 New Address parts Parts No. CK73GB1H471K CC73GCH1H030B CK73GB1H471K CC73GCH1H050B CC73GCH1H050C CK73GB1H103K CK73GB1H471K CC73GCH1H470J CK73GB1H103K CK73GB1H471K CC73GCH1H150J CC73GCH1H030B CK73GB1H102K C92-0695-05 CK73GB1H103K CK73GB1A224K CK73GB1C473K CK73GB1H102K CK73GB1C333K CK73GB1H182K CK73GB1H102K CK73GB1H471K CK73GB1H182K CC73GCH1H270J CK73GB1C104K C92-0695-05 CK73GB1H102K CK73GB1A105K C92-0695-05 CC73GCH1H4R5B CC73GCH1H040B CK73GB1H471K CC73GCH1H101J CC73GCH1H070B CC73GCH1H050B CC73GCH1H220J CK73GB1H103K C92-0665-05 CK73GB1C104K CK73GB1H471K CK73GB1H102K CK73GB1H471K C92-0695-05 C92-0695-05 CK73GB1C104K CC73GCH1H680J C92-0587-05 CK73GB1C223K CK73GB1A105K CK73GB1C104K CK73GB1A105K C92-0775-05 CK73GB1H471K CK73GB1H103K CK73GB1H471K CC73GCH1H150J CK73GB1A105K CK73GB1H471K CC73GCH1H121J CK73GB1C473K CHIP C CHIP C CHIP C CHIP C CHIP C CHIP C CHIP C CHIP C CHIP C CHIP C CHIP C CHIP C CHIP C CHIP-TAN CHIP C CHIP C CHIP C CHIP C CHIP C CHIP C CHIP C CHIP C CHIP C CHIP C CHIP C CHIP-TAN CHIP C CHIP C CHIP-TAN CHIP C CHIP C CHIP C CHIP C CHIP C CHIP C CHIP C CHIP C TANTAL CHIP C CHIP C CHIP C CHIP C CHIP-TAN CHIP-TAN CHIP C CHIP C CHIP-TAN CHIP C CHIP C CHIP C CHIP C CHIP-TAN CHIP C CHIP C CHIP C CHIP C CHIP C CHIP C CHIP C CHIP C Description 470PF 3.0PF 470PF 5.0PF 5.0PF 0.010UF 470PF 47PF 0.010UF 470PF 15PF 3.0PF 1000PF 10UF 0.010UF 0.22UF 0.047UF 1000PF 0.033UF 1800PF 1000PF 470PF 1800PF 27PF 0.10UF 10UF 1000PF 1.0UF 10UF 4.5PF 4.0PF 470PF 100PF 7.0PF 5.0PF 22PF 0.010UF 100UF 0.10UF 470PF 1000PF 470PF 10UF 10UF 0.10UF 68PF 2.2UF 0.022UF 1.0UF 0.10UF 1.0UF 47UF 470PF 0.010UF 470PF 15PF 1.0UF 470PF 120PF 0.047UF K B K B C K K J K K J B K 10WV K K K K K K K K K J K 10WV K K 10WV B B K J B B J K 6.3WV K K K K 10WV 10WV K J 4WV K K K K 4WV K K K J K K J K Destination Ref. No. C251 C252 C253 C254,255 C258,259 C261 C263 C264 C265-267 C272,273 C275 C276 C277 C279 C286 C288 C290 C292 C293 C294 C295 C296 C297-302 C303,304 C305 C306 C307 103 CN1 CN200 J200 F200 104 105 CF1 L1 L2 L3 L4 L5 L6 L7,8 L9 L10 L11 L12 L13 L14 L15 L16 L17 L18 L20 L21,22 L26 L27 L28 L29,30 1B 1A 1B New Address parts Parts No. CK73GB1C104K CK73GB1H103K CK73GB1H222K CK73GB1A105K CK73GB1A105K CC73GCH1H121J CK73GB1H182K CK73GB1H822K CK73GB1C104K CK73GB1C473K CK73GB1C223K CK73GB1C563K CK73GB1H681K CK73GB1A105K CK73GB1C104K CK73GB1H102K CK73GB1C104K CK73GB1C104K CK73GB1H222K CK73GB1H103K CK73GB1H392K CK73GB1C683J CK73GB1H471K CK73GB1H103K CK73GB1A105K CK73GB1H471K CK73GB1A105K E29-1196-04 E40-6213-05 E40-6214-05 E11-0457-05 F53-0217-05 J21-8448-04 J30-1212-04 L72-0974-05 L40-1001-86 L40-6865-92 L40-3975-54 L40-1001-86 L92-0444-05 L40-1001-86 L41-1275-06 L41-2275-06 L41-2775-06 L92-0444-05 L40-4795-85 L41-1075-06 L40-6865-92 L34-4568-05 L92-0445-05 L40-8265-92 L40-2285-54 L41-1275-08 L41-1575-08 L40-2275-92 L40-2078-98 L92-0444-05 L40-1875-92 CHIP C CHIP C CHIP C CHIP C CHIP C CHIP C CHIP C CHIP C CHIP C CHIP C CHIP C CHIP C CHIP C CHIP C CHIP C CHIP C CHIP C CHIP C CHIP C CHIP C CHIP C CHIP C CHIP C CHIP C CHIP C CHIP C CHIP C Description 0.10UF 0.010UF 2200PF 1.0UF 1.0UF 120PF 1800PF 8200PF 0.10UF 0.047UF 0.022UF 0.056UF 680PF 1.0UF 0.10UF 1000PF 0.10UF 0.10UF 2200PF 0.010UF 3900PF 0.068UF 470PF 0.010UF 1.0UF 470PF 1.0UF K K K K K J K K K K K K K K K K K K K K K J K K K K K Destination
INTER CONNECTOR (LCD) PIN ASSY PIN ASSY SOCKET PHONE JACK (2.5/3.5) FUSE (3A) HARDWARE FIXTURE (LCD) SPACER (MIC ELEMENT) CERAMIC FILTER (450K) SMALL FIXED INDUCTOR (10UH) SMALL FIXED INDUCTOR (6.8NH) SMALL FIXED INDUCTOR (39NH) SMALL FIXED INDUCTOR (10UH) FERRITE CHIP SMALL FIXED INDUCTOR (10UH) SMALL FIXED INDUCTOR (12NH) SMALL FIXED INDUCTOR (22NH) SMALL FIXED INDUCTOR (27NH) FERRITE CHIP SMALL FIXED INDUCTOR (4.7UH) SMALL FIXED INDUCTOR (10NH) SMALL FIXED INDUCTOR (6.8NH) AIR-CORE COIL FERRITE CHIP SMALL FIXED INDUCTOR (8.2NH) SMALL FIXED INDUCTOR (220NH) SMALL FIXED INDUCTOR (12NH) SMALL FIXED INDUCTOR (15NH) SMALL FIXED INDUCTOR (22NH) SMALL FIXED INDUCTOR (20NH) FERRITE CHIP SMALL FIXED INDUCTOR (18NH)
10
UBZ-LJ8
PARTS LIST
TX-RX UNIT (X57-6672-70) Ref. No. L31 L32 L33 L34 L35 L36 L37 L38 L41 X1 X201 X201 XF1 F R1 R2 R3 R4 R5 R6 R7,8 R9 R10 R11 R12 R13 R14 R15 R16 R17 R18 R19 R20 R21 R22 R24 R25 R26 R27,28 R29 R30 R31 R32-34 R35 R37 R38 R43 R44 R46 R47 R50,51 R52 R53 R54 R55 R56,57 R58 R59 R60 1A,1B New Address parts Parts No. L79-1825-05 L34-4572-05 L92-0444-05 L40-1095-34 L40-1591-37 L34-4554-05 L40-6865-92 L40-2775-92 L40-1581-35 L77-1930-05 L77-1928-05 L77-1929-05 L71-0616-05 N30-2004-46 RK73GB1J103J RK73GB1J102J RK73GB1J470J RK73GB1J102J RK73GB1J473J R92-1252-05 RK73GB1J473J RK73GB1J104J RK73GB1J470J RK73GB1J152J RK73GB1J822J RK73GB1J103J RK73GB1J472J RK73GB1J221J RK73GB1J683J RK73GB1J101J RK73GB1J221J RK73GB1J104J RK73GB1J183J RK73GB1J153J RK73GB1J221J RK73GB1J122J RK73GB1J100J RK73GB1J332J R92-1252-05 RK73GB1J563J RK73GB1J103J R92-1252-05 RK73GB1J101J RK73GB1J223J RK73GB1J123J RK73GB1J273J RK73GB1J223J RK73GB1J472J RK73GB1J103J RK73GB1J123J RK73GB1J221J RK73GB1J104J RK73GB1J683J RK73GB1J104J RK73GB1J683J R92-1252-05 RK73GB1J270J RK73GB1J683J RK73GB1J273J Description FILTER (447MHZ) AIR-CORE COIL FERRITE CHIP SMALL FIXED INDUCTOR (1UH) SMALL FIXED INDUCTOR (1.500UH) COIL SMALL FIXED INDUCTOR (6.8NH) SMALL FIXED INDUCTOR (27NH) SMALL FIXED INDUCTOR (150NH) TCXO(21.2497MHZ) CRYSTAL RESONATOR (3.633MHZ) CRYSTAL RESONATOR (3.633MHZ) MCF (21.7MHZ) PAN HEAD MACHINE SCREW CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R 10K 1.0K 47 1.0K 47K 0 OHM 47K 100K 47 1.5K 8.2K 10K 4.7K 220 68K 100 220 100K 18K 15K 220 1.2K 10 3.3K 0 OHM 56K 10K 0 OHM 100 22K 12K 27K 22K 4.7K 10K 12K 220 100K 68K 100K 68K 0 OHM 27 68K 27K J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W Destination Ref. No. R61 R64,65 R67 R68 R69 R71 R72 R73 R74,75 R77 R78 R80,81 R82 R83 R84 R85 R86 R87 R88 R89 R90 R91 R92 R95 R96 R97 R98 R99,100 R202 R220 R221 R222 R223 R224 R227 R228 R229 R230 R231 R232 R233 R234 R235 R238 R239 R240 R241,242 R243 R247 R248-251 R253 R256 R257 R261 R262 R263 R264,265 R266 R267 R269 New Address parts Parts No. RK73GB1J104J RK73GB1J105J RK73GB1J222J RK73GB1J820J RK73GB1J821J RK73GB1J471J RK73GB1J101J RK73GB1J334J R92-1252-05 RK73GB1J154J R92-1252-05 R92-1252-05 RK73GB1J472J RK73GB1J274J RK73GB1J151J RK73GB1J472J RK73GB1J122J RK73GB1J332J RK73GB1J681J RK73GB1J334J RK73GB1J473J RK73GB1J100J RK73GB1J153J RK73GB1J100J RK73GB1J222J R92-1252-05 RK73GB1J101J R92-1252-05 R92-1252-05 RK73GB1J471J RK73GB1J182J RK73GB1J183J RK73GB1J102J RK73GB1J564J R92-1252-05 RK73GB1J103J RK73GB1J223J RK73GB1J184J RK73GB1J562J RK73GB1J105J R92-1252-05 RK73GB1J224J RK73GB1J473J RK73GB1J181J RK73GB1J394J RK73GB1J274J RK73GB1J331J RK73GB1J101J RK73GB1J392J RK73GB1J102J RK73GB1J101J RK73GB1J472J RK73GB1J473J RK73GB1J684J RK73GB1J393J RK73GB1J154J RK73GB1J333J RK73GB1J274J RK73GB1J822J RK73GB1J392J CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R Description 100K 1.0M 2.2K 82 820 470 100 330K 0 OHM 150K 0 OHM 0 OHM 4.7K 270K 150 4.7K 1.2K 3.3K 680 330K 47K 10 15K 10 2.2K 0 OHM 100 0 OHM 0 OHM 470 1.8K 18K 1.0K 560K 0 OHM 10K 22K 180K 5.6K 1.0M 0 OHM 220K 47K 180 390K 270K 330 100 3.9K 1.0K 100 4.7K 47K 680K 39K 150K 33K 270K 8.2K 3.9K J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W Destination
11
UBZ-LJ8
PARTS LIST
TX-RX UNIT (X57-6672-70) Ref. No. R270 R271 R272,273 R274 R275 R278 R279 R281 R284 R285 R286,287 R288 R289 R290 R291 R292 R293 R294 R295 R296 R297 R298 R299 R300-302 R303-307 R308 R310-312 R314 R315 R316 R317 R318 R319 R320 R321 VR1 VR3 VR4 VR201 S200 MIC200 D1 D2 D3 D4,5 D8 D10 D11 D200 D202 D203,204 D206 D208 D209,210 IC1 IC2 IC202 IC203 1A New Address parts Parts No. R92-1252-05 RK73GB1J223J RK73GB1J472J RK73GB1J122J RK73GB1J333J RK73GB1J153J RK73GB1J823J RK73GB1J333J RK73GB1J153J RK73GB1J124J RK73GB1J104J RK73GB1J154J RK73GB1J562J R92-1252-05 RK73GB1J103J RK73GB1J562J RK73GB1J394J R92-1252-05 RK73GB1J103J RK73GB1J222J RK73GB1J101J RK73GB1J473J RK73GB1J100J RK73GB1J102J RK73GB1J103J RK73GB1J102J RK73GB1J473J RK73GB1J472J RK73GB1J334J RK73GB1J102J RK73GB1J104J RK73GB1J103J RK73GB1J223J RK73GB1J820J RK73GB1J272J R12-7490-05 R12-7491-05 R12-7488-05 R31-0642-05 S70-0434-05 T91-0555-05 HVC131 1SV270 1SV214 MA2S111 HVC131 HSC277 RB706F-40 1SR154-400 DAN222 MA742 KDZ3.3V MA742 MA2S111 TB31202FN TA31136FN BD4724G LM4865M CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R CHIP R Description 0 OHM 22K 4.7K 1.2K 33K 15K 82K 33K 15K 120K 100K 150K 5.6K 0 OHM 10K 5.6K 390K 0 OHM 10K 2.2K 100 47K 10 1.0K 10K 1.0K 47K 4.7K 330K 1.0K 100K 10K 22K 82 2.7K J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W Destination Ref. No. IC204 IC206 IC207 IC208 IC209 IC210 IC210 IC211 Q1 Q2 Q3 Q4-6 Q7 Q8 Q9,10 Q11 Q13 Q14 Q200 Q201 Q210-212 Q213 Q215 Q216 Q217,218 Q219 Q220 New Address parts Parts No. TC75S51F BD4730G TK71530ASCL M38C24M6502HP AK2346 AT24C01A10SI18 CAT24WC01JI18 NJM2100V DTC114EE 2SC5066(O) 2SC4617(S) 2SC5108(Y) 2SC5092 2SK3656 3SK318 KTC4082 2SC4738(GR) 2SC5108(Y) 2SC4919 2SC4738(GR) DTA123JE DTC114EE DTA123JE 2SA1362(GR) CPH3413 2SK1824 2SC4617(S) MOS IC MOS IC MOS IC MPU MOS IC ROM IC ROM IC MOS IC DIGITAL TRANSISTOR TRANSISTOR TRANSISTOR TRANSISTOR TRANSISTOR FET FET TRANSISTOR TRANSISTOR TRANSISTOR TRANSISTOR TRANSISTOR DIGITAL TRANSISTOR DIGITAL TRANSISTOR DIGITAL TRANSISTOR TRANSISTOR FET FET TRANSISTOR Description Destination
2B
TRIMMING POT. (47K) TRIMMING POT. (68K) TRIMMING POT. (22K) VARIABLE RESISTOR (10K) TACT SWITCH (PTT) MIC ELEMENT DIODE VARIABLE CAPACITANCE DIODE VARIABLE CAPACITANCE DIODE DIODE DIODE DIODE DIODE DIODE DIODE DIODE ZENER DIODE DIODE DIODE MOS IC MOS IC MOS IC BI-POLAR IC
12
UBZ-LJ8
EXPLODED VIEW
A B
23
5
2
1
104 22 26 12 MIC200 F 105 F VR201
TX-RX unit (A/2) 700 Insulating sheet TX-RX unit (B/2)
102 103 101
E
701 Frame
2
27 B A
C D 24
VR201 assy
1 8 A
3
18 B Ax2 4
704 Model name plate 702 Standard label
A B C D E F M2 x 4.5 : N09-2291-05 M2 x 14 : N80-2014-45 : N14-0801-05 ø4 (TW) : N17-1040-46 M2 x 5 : N67-2005-46 M2 x 4 : N30-2004-46
17
703 S/No. label
14
Parts with the exploded numbers larger than 700 are not supplied. 13
UBZ-LJ8
PACKING
C D UBZ-LJ8
1 20 Belf hook (J29-0700-03) 705 Packing fixture
7 Instruction manual (B62-1669-10)
2
706 Warranty card
3
707 Item carton case
14
Parts with the exploded numbers larger than 700 are not supplied.
UBZ-LJ8
ADJUSTMENT
Required Test Equipment
1. DC V.M and Tester (DVM)
1) High input impedance
Setting
1. Power voltage : DC 4.5V Current protection : Approx. 300mA 2. Frequency · Channel frequency (12.5kHz step)
Channel 1 2 3 4 5 6 7 8 TX frequency 446.00625 446.01875 446.03125 446.04375 446.05625 446.06875 446.08125 446.09375 446.00625 446.01875 446.03125 446.04375 446.05625 446.06875 446.08125 446.09375
2. RF VTVM (RF V.M)
1) Input impedance : 1M min., 2pF max. 2) Voltage range : F.S = 10mV to 300V 3) Frequency range : 500MHz or more
(MHz)
RX frequency
3. Frequency Counter (f. counter)
1) Input sensitivity : Approx. 500mV 2) Frequency range : 500MHz or more 3) Measurement stability : 0.2ppm or less
4. DC Power Supply
1) Voltage : 0V to 10V, variable 2) Current : Approx. 1A
5. Power Meter
1) Measurement range : Approx. 1W 2) Input impedance : 50 3) Frequency range : 500MHz or more · Tone frequency (Hz)
No. 1 2 3 4 5 6 7 8 9 10 11 Frequency 67.0 71.9 74.4 77.0 79.7 82.5 85.4 88.5 91.5 94.8 97.4 100.0 103.5 No. 14 15 16 17 18 19 20 21 22 23 24 25 26 Frequency 107.2 110.9 114.8 118.8 123.0 127.3 131.8 136.5 141.3 146.2 151.4 156.7 162.2 No. 27 28 29 30 31 32 33 34 35 36 37 38 Frequency 167.9 173.8 179.9 186.2 192.8 203.5 210.7 218.1 225.7 233.6 241.8 250.3
6. AF VTVM (AF V.M)
1) Input impedance : 1M or more 2) Voltage range : F.S = 1mV to 3V 2) Frequency range : 50Hz to 10kHz
7. AF Generator (AG)
1) Output frequency : 100Hz to 10kHz 2) Output voltage : 0.5mV to 1V
8. Linear Detector or Deviation meter
1) Frequency range : 500MHz or more
9. Distortion Meter
1) Frequency range : 30Hz to 100kHz 2) Input level : 50mV to 10Vrms 3) Measurement stability : 3% or less at 1kHz
12 13
10. SSG
1) Frequency range : 30 to 500MHz 2) Modulation : FM 3) Output level : 133dBm (0.05µV) to 13dBm (50.1mV)
3. SSG standard modulation (Mod : 1kHz, DEV : ± 1.5kHz)
11. Oscilloscope
1) Measurement range : DC to 30MHz
12. Dummy Load
1) 8, 1W
15
UBZ-LJ8
ADJUSTMENT
Jigs
Use jigs for repair or adjustment.
Connection Jigs
Connect the extension cable as shown in the illustration below.
Extension Cable (E30-3480-08)
CN1 CN200 Extension cable (E30-3480-08) TX-RX unit (B/2)
TX-RX unit (A/2)
ANT Cable (E30-3418-05)
Modify the cable as shown below.
Solder the ANT cable to the ANT terminal and GND on the TX-RX unit (B/2).
TX-RX unit (A/2)
Cut
TX-RX unit (B/2)
ANT cable ANT terminal GND
Adjustment Points
TX-RX unit (B/2) Component side view
LV VR1 VR3
TX-RX unit (A/2) Component side view
PTT
GND() DOWN
UP
LCD
L36 VR4 ANT
VCC(+)
MODE
POWER
VR1 : MAX deviation VR3 : Reference oscillator frequency VR4 : TX power adjustment L36 : Quad coil adjustment
EXT. SP/MIC
LV : VCO lock voltage terminal VCC (+), GND () : External power supply terminal (Fasten it with an alligator clip.)
16
UBZ-LJ8
ADJUSTMENT
Adjustment Mode
Storing the Adjustment Value for the CTCSS Deviation, Battery Voltage Detection, Busy (Squelch) Detection and VOX Gain Level
PTT WRITE GND TX-RX unit (A/2)
6. Adjust the value according to the instructions on each item (Refer to "Adjustment instructions"). 7. After adjusting the data value, press the [PTT] key to store the new data to the EEPROM (IC210). If you do not wish to store the adjusted data value to EEPROM (IC210), press the [MODE] key. No data will not be stored to the EEPROM (IC210) and the old data is retained. 8. You can press the [REM1] key on the speaker-microphone (if connected) to activate the Monitor function. (Please disable the monitor function in the Battery voltage detection menu.) The adjustment menu can be up or down by pressing the [REM2] or [REM3] key. 9. To exit "Adjustment mode", turn the transceiver OFF. Note : Refer to the diagram on the page 18 to understand how each adjustment can be performed.
How to Store the Adjustment Value to the IC210 (EEPROM) on the TX-RX Unit (A/2)
If the adjustment data in IC210 is corrupted or the IC itself is replaced for servicing, all the data must be re-adjusted and stored as follows. 1. Turn the transceiver OFF. 2. Enter the adjustment mode by shorting the "WRITE" and "GND" terminals, then press the [PTT] key and turn the transceiver ON. After turning the transceiver ON, remove the wire from the "WRITE" and "GND" terminals. Note : You must preset the tone number to "24"(151.4Hz) at the required channel prior to enter the adjustment mode. Otherwise, you cannot perform the "CTCSS Deviation" adjustment. 3. The adjustment menu appears. It begins with "CTCSS Deviation" adjustment. 4. The adjustment menu changes when you press the [UP] or [DOWN] key. 5. Press the [MODE] key to enter the selected adjustment menu. The adjustment value appears on the LCD and blinks.
Adjustment Instructions · CTCSS Deviation adjustment
1. After entering the CTCSS Deviation adjustment mode, select the values with [UP]/ [DOWN] keys. Then press [PTT] key to write the new value to the EEPROM (IC210). 2. Press [PTT] keys again to transmit. Confirm the CTCSS deviation is 0.35kHz. If the deviation is not 0.35kHz, perform step 1 again to select different value, then measure the deviation. 3. Perform step 1 and 2 until you get the deviation value 0.35kHz.
· Battery voltage detection adjustment
Set the DC power supply voltage to 3.20V and connect the cable to the transceiver.
· Busy (Squelch) detection adjustment
Set your SSG (Synthesized Signal Generator) values as follows. Frequency : 446.00625MHz (CH1) Modulation frequency : 1kHz Frequency deviation : 1.5kHz Signal output : 123dBm (0.158µV)
· VOX gain level adjustment
Set the initial VOX gain value to 3C (in hexadecimal).
17
UBZ-LJ8
ADJUSTMENT
Adjustment Mode Flow Chart
CTCSS deviation [MODE] for CTCSS deviation output Press [PTT] to write in new value [UP] [DOWN] Blink Press [PTT] key to confirm the deviation. You must set the tone number to "24" (151.4Hz) prior to the measurement.
Press [UP]/[DOWN] keys to adjust the CTCSS deviation adjustment value. Press [MODE] key to cancel writing the value to the EEPROM (IC210).
[DOWN]
Battery voltage detection
[MODE] to read AD level Press [PTT] to write in new value [UP] [DOWN] [MODE] to read AD level Press [PTT] to write in new value [UP] [DOWN] [MODE] to read AD level Press [PTT] to write in new value [UP] Blink Blink Blink
Must off receiver. Press [MODE] key to cancel writing the value to the EEPROM (IC210).
Busy (Squelch) detection
Press [MODE] key to cancel writing the value to the EEPROM (IC210).
VOX gain level
Press [UP]/[DOWN] keys to adjust the VOX gain level. Press [MODE] key to cancel writing the value to the EEPROM (IC210).
Note :
· PLL unlock status is not examined while in Adjustment Mode. · The transmission time is not limited in Adjustment Mode. · The lamp function is not available in Adjustment Mode. · The Key Lock function forces the transceiver to exit Adjustment Mode. · You cannot set the Beep function OFF while in Adjustment Mode (the transceiver always beeps).
18
UBZ-LJ8
ADJUSTMENT
PLL Section
Measurement Item Condition Testequipment DVM Unit TX-RX (B/2) Terminal LV Unit Adjustment Parts Method Check Specifications/Remarks 0.7~2.7V
1. VCO lock voltage 1) 4CH : 446.04375MHz RX TX 2) 4CH : 446.04375MHz PTT : ON 2. Reference oscillator frequency 1) 4CH : 446.04375MHz PTT : ON
Power meter TX-RX f. counter (B/2)
ANT
TX-RX (B/2)
VR3
446.04375MHz
± 100Hz
Transmitter Section
Measurement Item 1. TX power and current 2. MAX deviation Condition 1) 1CH : 446.00625MHz PTT : ON 1) 1CH : 446.00625MHz AG : 1kHz/100mV PTT : ON 1) 1CH : 446.00625MHz AG : 1kHz/5mV PTT : ON 1) Enter the adjustment mode, then write the CTCSS deviation level. 1CH : 446.00625MHz Tone No. : 24 (151.4Hz) PTT : ON 2) Tone No. : 38 (250.3Hz) PTT : ON Testequipment Unit Terminal ANT Unit TX-RX (B/2) Adjustment Parts VR4 Method 500mW Current check 2.0kHz According to the larger +, . Check Specifications/Remarks ± 10mW 500mA or less ± 0.05kHz
Power meter TX-RX Ammeter (B/2) Power meter TX-RX Linear (B/2) detector TX-RX (A/2) AG AF V.M
ANT MIC
VR1
3. MIC sensitivity
1.2~1.9kHz
4. CTCSS deviation
Linear detector
TX-RX (B/2)
ANT
[UP], Write the new [DOWN] adjustment value by pushing [PTT].
0.35kHz± 0.05kHz
Check
0.25~0.40kHz
Receiver Section
Measurement Item 1. Quad-coil adjustment Condition Testequipment Unit TX-RX (B/2) TX-RX (A/2) Terminal ANT SP Unit TX-RX (B/2) Adjustment Parts L36 Method Specifications/Remarks
1) 4CH : 446.04375MHz SSG SSG output : 53dBm (501µV) SSG MOD : 1kHz Oscilloscope SSG DEV : 1.5kHz DVM AF VOL : 10 o'clock position 1) 4CH : 446.04375MHz SSG output : 115dBm (0.398µV) SSG MOD : 1kHz SSG DEV : 1.5kHz AF VOL : 0.63V/8 CCITT filter : ON SSG
Maximum AC level 0.9V or more (peak to peak) using oscilloscope
2. Sensitivity
TX-RX (B/2) Distortion TX-RX meter (A/2) Oscilloscope AF V.M TX-RX (B/2) TX-RX (A/2)
ANT SP
Check
SINAD : 20dB or more
3. Squelch
1) 4CH : 446.04375MHz SSG SSG output : 116dBm (0.35µV) 2) SSG output : 127dBm (0.1µV) Oscilloscope AF V.M 1) BATT terminal : DC 3.35V± 0.01V 2) BATT terminal : DC 3.80V± 0.01V
ANT SP
Check
Squelch open Squelch close
4. BATT
DC power TX-RX supply (A/2) DVM
VCC (+) GND ()
LCD check
or or
light on lignt on
19
A
B
C
D
E
F
G
H
I
J
1
UBZ-LJ8
PC BOARD
TX-RX UNIT (X57-6672-70) (A/2) Component side view (J72-0869-09 A/2)
2
C293
3
C201
R299 C292 R316 Q220
C303
G D S
C212
8
5
C206 SP+ 4 SP
+
G D
R293
S Q217 D209
IC203
+
Q219
1 D210
C211
Q216
4
C208
GND () 5
R321
DOWN
6
7 + C209 8 MIC200
Q211 9 C234 VCC (+) 10 J72-0869-09 A/2 D200 F200 11 C210 + C236 C237 MODE
2 I
IC207 1 O 3 G
C240 R239
R240
R235
Q212
C239 IC202 4 3
5 1
C305
C300
C235
12 Ref. No. Address Ref. No. Address Ref. No. Address IC202 11G Q212 11J Q220 4H IC203 IC207 13 IC209 Q201 Q210 4G 11F 7M 7K 11K 9G Q213 Q215 Q216 Q217 Q218 Q219 3O 11L 5G 3F 11O 3J D200 D203 D205 D208 D209 D210 11E 7L 4P 3K 4F 4F DTA123JE DTC114EE KTC4082 2SA1362 2SC4617 2SC4738 2SC5066 2SC5108 2SC5092 2SC4919 MA742
20
14
Q211
J
K
L
M
N
O
P
Q
R
S
PC BOARD
UBZ-LJ8
1
TX-RX UNIT (X57-6672-70) (A/2) Component side view (J72-0869-09 A/2)
2
C249 C248
R291
R319 R298
R320 R318
GND
Q213
R297
PTT 3 D205
R292
C288
C294
C293 D208 R293 C302 C233
C303
G D S
R257
Q219
R238 C253 R261
R262
4 COM2 COM1 COM0 S15 S14 S13 S12 S11 S10 S9 LCD S8 S7 S6 WRITE 7 6 5
UP
C252 R265
C255
R264 R263 C247
R232 R233
C254
R256
C251
C229
C228
24 IC209
13
D203 Q201 C259
1
12
MIC200 C295 R230 R229
C258 C227 C226 R231 R266 C261 R267 C263
R271
S5 S4 S3
R269 C264
C265 R275
8
R314
S2 S1
R270
S0 9
POWER
C266 R274
R272
R273
C267
MIC Q212 Q210
C298
10
R289
C299
C296
S D G Q218
C297
PTT
REM
11
C279
C300
C235
AEO
Q215
C301
SPG
Component side CPH3413 3SK318 2SK1824 TC75S51F BD4724G BD4730G Layer 1 Layer 2 Layer 3 Layer 4 Foil side
12
13
21
14
A
B
C
D
E
F
G
H
I
J
1
UBZ-LJ8
PC BOARD
TX-RX UNIT (X57-6672-70) (A/2) Foil side view (J72-0869-09 A/2)
2 S200 PTT PTT 3
GND
R288
C275 C276 R286 R285 C273 R284
R287 C277
C244
4 C243
R304
X201
4 IC211
1
R302 R307
R300 R301
R310 R311
5 IC210 8
R253
4
5
8
5
C272 R278
C286
R251
1 C245 C246
R279
6
32 33
17 16
R247 R308 R290
1 GND MOD 2 GND TO GND BUSY GND 3C GND UL 3T CK 3R DT B EP B CRS 19 B AFO 20
R281
+ C225
R250
7
IC208 WRITE
CN200
R227 D204
48 49 8 R312
R248 3 4 C238 IC206 R249
64
1
C222 D202 R220 5 1 IC204 4 3
R303 R296 R234
C241 1
R224 C224 R223 C290
R228
C307 D206 C242
9
VR201 AF VOL
Q200
R305 R306
R315
R222 R221 + C220 C221
5
R202 R317 C306
R295
R241
R242
R243
10
C304
MIC
R294
11
REM AEO
PTT J200 EXT. SP/MIC
SPG
12
13
Ref. No. Address Ref. No. Address IC204 9G Q200 9H IC206 9D D202 8H IC208 7D D204 7H
M38C24M6502HP
TB31202FN
AT24C01A10SI18 LM4865M NJM2100V
AK2346
22
14
IC210 IC211
5E 4G
D206
9E
J
K
L
M
N
O
P
Q
R
S
PC BOARD
UBZ-LJ8
1
TX-RX UNIT (X57-6672-70) (A/2) Foil side view (J72-0869-09 A/2)
2
3
4
5
6
7 +
8
9
10 J72-0869-09 A/2
11
Component side Layer 1 Layer 2 Layer 3 Layer 4 Foil side 12
CAT24WC01JI18
TA31136FN
TK71530ASCL
2SK3656
13
23
14
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
1
UBZ-LJ8
PC BOARD
PC BOARD
UBZ-LJ8
1
TX-RX UNIT (X57-6672-70) (A/2) Component side view (J72-0869-09 A/2)
2
TX-RX UNIT (X57-6672-70) (A/2) Component side view (J72-0869-09 A/2)
2
C249 C248
R291
R319 R298 R320 R318
GND
Q213 R297
PTT 3 D205
R292
C288
C294
C293
3 C212 C206 SP+ 4 SP + S
C201 8 G D IC203 5
R299 C292 R316 Q220 4
C303
G D S
D208
R293
R257
+
Q219
R238 C253
Q217 D210 D209
GND () 5
C211
1
4 COM2 COM1 COM0 S15 S14 S13 S12 S11 S10 S9 LCD S8 S7 S6 WRITE 7 6 5
C208 Q216
UP
R261 R262 C252
R321
DOWN R264 R263 C247 R232 R233
R265
C255
C254
R256
6 C229 C228 D203 + C209 8 MIC200 C295 R230 R229 Q211 9 C234 VCC (+) 10 J72-0869-09 A/2 D200 F200 11 C210 + C236 C237 2 IC207 1 O 3 G C240 R239 C305 R240 5 R235 Q212 Q210 MODE Q201
C251
24 IC209
13
7
C259 1 C258 C227 C226 R231 R266 C261 R267 C263 R271 R269 C264 C265 R275 R270 C266 R274
R314
12
S5 S4 S3 S2 S1 S0 9 8
POWER
R289 C298
R272
R273 MIC 10
C267
C239 IC202 4 3
C299
C296
I
S D G Q218
C297
PTT
REM
11
C279
C233
C302
C300
C235
1
AEO
Q215
C301
SPG
12 Ref. No. Address Ref. No. Address Ref. No. Address IC202 11G Q212 11J Q220 4H IC203 4G Q213 3O D200 11E IC207 11F Q215 11L D203 7L IC209 7M Q216 5G D205 4P Q201 7K Q217 3F D208 3K Q210 11K Q218 11O D209 4F Q211 9G Q219 3J D210 4F DTA123JE DTC114EE KTC4082 2SA1362 2SC4617 2SC4738 2SC5066 2SC5108 2SC5092 2SC4919 MA742 CPH3413 3SK318 2SK1824 TC75S51F BD4724G BD4730G Layer 1 Layer 2 Layer 3 Layer 4
Component side
12
13
13 Foil side
14
14
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
1
UBZ-LJ8
PC BOARD
PC BOARD
UBZ-LJ8
1
TX-RX UNIT (X57-6672-70) (A/2) Foil side view (J72-0869-09 A/2)
2 S200 PTT PTT 3
TX-RX UNIT (X57-6672-70) (A/2) Foil side view (J72-0869-09 A/2)
2
GND
R288
C275 C276 R286 R285 C273 R284 4 3
R287 C277 C244
4 C243 R304 R302 R307 R300 R251 R301 5 R310 R311
X201
4 IC211
1
5 IC210 8 R253
4 5
8
C272 R278
5
C286
1 C245 C246
R279
6
32 33
17 16
R247 R308 R290 1 GND MOD 2 GND TO GND BUSY GND 3C GND UL 3T CK 3R DT B EP B CRS 19 B AFO 20
R281 + C225 R250 6
7
IC208 WRITE
CN200
R227 D204
7 +
48 49 8 R312 R248 3 4 C238 IC206 R249
64
1 C222 D202 R220 5 1 IC204 4 3 R303 R296
8
R224 C224 R223 C290
R228
R234 C241 1
C307 D206 C242
9 VR201 AF VOL
9
Q200
R305 R306 R315
R222 R221 + C220 C221
5
R202 R317 C306
R295
R241
R242
R243
10
C304
MIC J72-0869-09 A/2
10
R294
11
REM AEO
PTT J200 EXT. SP/MIC Component side
11
SPG
12
13
Ref. No. Address Ref. No. Address IC204 9G Q200 9H IC206 9D D202 8H IC208 7D D204 7H IC210 5E D206 9E IC211 4G
M38C24M6502HP
TB31202FN
AT24C01A10SI18 LM4865M NJM2100V
AK2346
CAT24WC01JI18
TA31136FN
TK71530ASCL
2SK3656
Layer 1 Layer 2 Layer 3 Layer 4 Foil side
12
13
14
14
A
B
C
D
E
F
G
H
I
J
1
UBZ-LJ8
PC BOARD
2
TX-RX UNIT (X57-6672-70) (B/2) Component side view (J72-0869-09 B/2)
Ref. No. Address Q1 4D Q2 5E Q4 Q5 Q6 Q7 Q8 Q10 Q14 D1 D2 D3 D8 5D 5F 5C 8B 9C 8E 7B 3D 3E 4E 10D
LV 3 R4 R5
Q1 C3
VCO R9
D1
D2
C6
L1 L3 R7
R6
R3
R35
C31 C29
C30
C2
R2 L2
R8
C5
R30
4
R22 R21 Q6 C28 C19
R10
C4
C8
D3
C10 R12 C13 R15 R20 C9 C7
VR1 MOD
L10
L4 R19
C25
VR3 FREQ
5
L6
C15
C12
R11
C26
R18
Q2
R37 R38 6
C146 C149
R17
L9
R16
C27
Q5
Q4
R95
L33
C107
C124 L34 CF1
R99
C150
L37
L38
C50
C152
C110
R68
7
R97
R96
C109
C108
R67
R100
L41
C53 C57
R98
C88
R52
L26
Q14
R43
C52
Q10
D G
S G
R54
8
E C Q7 B E
R44
L13 C59
C66 C63
C65
C87 R53 C89
R75
C134 C129 R89 L36 AFO
XF1
R78
R55
R91
C90
C94 R56 L15
C133
C130
Q8 S
9
L17
C58
L14
R88 R85
R86 R87 R81 C128
C131
C132
C55
G
D
R46
C62
C68
R80
C70
10
C60 C61 R47
R50 R51 C140
C148 C147
L18 C71 C153
VR4 PWR
C73
C75
D8
C81
C77 C79 L22
11
C80
L20
ANT L21 12 J72-0869-09 B/2 Component side Layer 1 Layer 2 Layer 3 Layer 4 Foil side
13
24
14
A
B
C
D
E
F
G
H
I
J
PC BOARD
UBZ-LJ8
1
TX-RX UNIT (X57-6672-70) (B/2) Foil side view (J72-0869-09 B/2)
Ref. No. Address IC1 5G IC2 8C Q3 Q9 Q11 Q13 D4 D5 D10 D11 4G 10F 9D 6G 3H 5E 11F 6H
C23 L11 R29 C42 C113
2
R1 C32
R24 + C33
3 +
C22
R26 C14
L5
D4
+
C35
R27 R28
+
C40 R14 C16 Q3
C20 L8 R25 C34
D5
C17 L7 +
C39 C41
C18
4 1 IC1 8
R33 R34 R13 R74 C125
16
L12
C46
X1 5
C44
R32
9
Q13
C43
R31
C143 +
C47 C127
C45
C36
C38
R83
R82
R84
D11
C118 R77 C141
6
C37 C106 R71
C122
2 MOD TO BUSY 3C UL CK DT EP CRS 20 AFO
C138 +
7
CN1
GND 1 GND GND GND GND 3T 3R B B B 19
8
1
8
C67 C64
L16
Component side Layer 1 Layer 2 Layer 3 Layer 4 Foil side
R92
C112
IC2 16
L27 R57
C142 L28 C93 9
C115 +
9
C116
R58 Q11
R69
C96
C98
D G S G
C135
C136
R60
R72 C114
R90
Q9
C99 L30 C101
R64
R73
L29 R59 D10 R61
L35
10
C117
C144
L32 J72-0869-09 B/2 12
C105
C103 C102
R65
L31
11
13
25
14
A
B
C
D
E
UBZ-LJ8
1
SCHEMATIC DIAGRAM
TX-RX UNIT :CONTROL SECTION (X57-6672-70) (A/2)
COM0
COM1
S10
S11
S12
S13
S14
S15
S0
S1
S2
S3
S4
S5
S6
S7
S8
S9
COM2
2
LAMP ON:4.49V LAMP OFF:4.5V LAMP ON:2.229V LAMP OFF:4.5V R238 180 2 AVR IC207 TK71530ASCL VIN VOUT GND 1 2.95V 3M 3T SWITCH RX:2.944V TX:0.082V
RX:0V TX:2.468V 3T
Q210 DTA123JE
C233 1u
C302
RX:2.83V TX:2.83V
470p
3C
C237
Q215 DTA123JE
C236
47u4
470p
C301
RX:2.872V TX:0.621V
3M
C279
3R
3
RX:0.071V TX:0.082V
470p 1u 470p
3MS
3C SWITCH
RX:0.073V TX:2.948V Q211 DTA123JE
2.893V
2.927V
Q212 DTA123JE
R234
R235
220k
47k
RX:2.89V TX:2.893V
0.01u
C238
C306
R240
270k C305
470p
C239
LAMP LED
0.01u
1u
OUT
VCC
VCC
390k
IC206 BD4730G
470p
LAMP ON:0.079V LAMP OFF:3.025V
IC202 BD4724G
VEE1
VEE1
VEE2
LAMP LED SWITCH
R239
C240
NC
1
2
1
2
Q213 DTC114EE VOLTAGE DETECTION VOLTAGE DETECTION
3
3
VEE2
NC
OUT
C_3MS
C_3R
C_3C
S0
S1
S2
S3
S4
S5
S6
S7
S8
S9
S10
4
C_3T C_3R
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
S11
C_3MS
C_3T
3RC
LAMP
S0
S1
S2
S3
S4
S5
S6
S7
S8
3MC
3TC
S9
S10
S11
C255 1u
R265
1800p
COMM_CLK COMM_DATA AKM_DIR PLL_CS PLL_UNLOCK UP_KEY DOWN_KEY CTCSS_OUT BEEP R248 R249 1k 1k
CLK DAT AKDIR PLLE UL UP
S13 S14 S15 NC COM0 COM1
S13 S14
C263
50 51 52 53 54 55 56 57 58 59 60
31 30 29 28 27 26 R300 R301 R302 1k 1k 1k
BASEBAND IC
R264 33k
R267
8.2k
S15
C258 C259
1u 1u
1 AGNDIN 2 AGND 3 TXIN
24 TEST RXIN RXINo 23 22 21 20 19 18 17 16 15 14 13 C252 0.01u
C247 120p R263 150k 1.437V
R256
R261 680k C253 2200p
COM0 COM1 COM2 R266
MPU
DOWN QTOUT BEEP MICM BATTL GND VREF
R270
IC208 M38C24M6502HP
COM2 NC MODE
25 24 23 22
4 TXINo 5 LIMLV
R251 MODE_KEY 1k PTT REM(TxD) R250 1k RxD POWER
0
270k 120p C261 C265 R269 3.9k 1.451V
RXLPFo
47k
R275
R310
62 63 CTCSS_IN 64
RxD PWR
19 18
FLASH (GND)
BATT QTIN
R314
17
SP AMP RESET MJDET
ESDA
OSCO
TUNE
BUSY
1
2
3
4
5
6
7
8
9
BTLC
RSSI
GND
REM
SPM
Xout
VOX
Vcc
Xin
COMM_DATA
4.7k
ESCL
R311
61
TxD
20
C264 8200p
R312 47k
33k
5
21
47k
MIC_MUT
PTT
0.1u
RXAF 6 EXTLIMIN RXAFIN 7 MOD EXPOUT 8 VSS VDD 9 TCLK XIN 10 TDATA XOUT 11 D_IO DIR 12 RDF_FC SCLK
R262 39k
COMM_CLK
10
11
12
13
14
15
16
BUSY
C246
RSSI
R308
C245
470p
1k
1u
R290
0
C307
R296
2.2k
1u
SP_AMP
SP_MUT
REM
VOX
6
BTL_IN
FLASH
WRITE
BTL_OUT
3MS
WRITE
POWER
DOWN_KEY
10k
10k
10k
UP_KEY
PTT
MODE_KEY
R303 10k
10k
EEPROM
R253 100
IC210 CAT24WC01JI18 or AT24C01A10SI18 3M 8 VCC 1 A0 2 A1 3 A2 4 VSS
R247 3.9k
R304
R305
R306
R307
C286
S200 S70-0434-05
1.304V
X201 L77-1928-05 or L77-1929-05 3.633MHz
0.1u
7 WP 6 SCL 5 SDA
1.01V
C243 15p
7
POWER
PTT
UP
DOWN MODE
26
X57-667 1/4
C244 15p
AKM_DIR
4.7k
IC209 AK2346
0.1u
C_3C
SAVE
S12
S12
C251
49
32
33k
C234
3
D205 B30-2143-05
3MS SWITCH RX:0.072V TX:0.083V
5
5
4
4
C300
3R SWITCH
C254 1u
C235 1u
1u
F
G
H
I
J
SCHEMATIC DIAGRAM
TX-RX UNIT : CONTROL SECTION (X57-6672-70) (A/2)
NOTES: SP.ON :4.5V SP.OFF :4.5V INT.ON :4.5V INT.OFF:4.5V EXT. :4.49V AF AMPLIFIER AVR Q216 2SA1362(GR)
D209 MA2S111 R321 2.7k
UBZ-LJ8
BTL NORMAL EXT MUT 1 1 INTERNAL SPEAKER
SP.ON :3.647V SP.OFF :0.014V INT.ON :3.647V INT.OFF:3.647V EXT. :3.633V
0 1 BTL_OUT 0 0 SP_MUT 1 0 (WHEN BTL_IN =LOW, SWITCH TO EXT MODE) R298 47k
AF AMPLIFIER IC203 LM4865M 1
VCC VO2
C294 0.01u
SP.ON :2.944V SP.OFF :0.004V INT.ON :2.945V INT.OFF:2.944V EXT. :2.946V BTL_OUT
C211 470p
C212 10u10
8 7
-VIN BYPASS GND VO 1 HP_SEN
TONE SIGNAL DETECTION C201 D208 MA742
2 3
6 0.01u 5
D210 MA2S111
4
DC_VOL/SW
Q217 CPH3413
SP_AMP Q220 2SC4617(S)
R316 1k
C303
0.01u
C208 0.1u
3T
C293 2200p
AF SWITCH
D209,210 VOLTAGE LEVEL SHIFT DIODE
390k
Q217-219 AF SWITCH
SP.ON :2.964V SP.OFF :2.963V INT.ON :0.018V INT.OFF:2.964V EXT. :0.019V
Q219 2SK1824
C304 0.01u
Q218 CPH3413 SP.ON :2.858V SP.OFF :2.858V INT.ON :0.025V INT.OFF:2.858V EXT. :0.007V
3C
SP_MUT
R315 330k
100u6.3
C206
R299 10 C292 0.1u
SP.ON :0.004V SP.OFF :0.003V INT.ON :6.58V INT.OFF:0.004V EXT. :5.77V
R293
AF VR
VR201
R320 3R 82 R294 0 4.5V
1000p C210
BATT
F200 F53-0217-05
BATT
D200 1SR154-400 PROTECTION DIODE MOD CN200
2 1
R273 4.7k CTCSS_OUT
C267 0.1u
R272 4.7k
C266 0.1u R274 1.2k
R271 22k
GND TO GND BUSY 3C BUSY GND 3C GND PLL_UNLOCK COMM_CLK COMM_DATA PLL_CS RSSI UL GND CK 3T DT 3R EP B CRS B AFO B
3T 3R
R319 22k
20
19
R318 10k BEEP
C288 1000p R292 5.6k
R291 10k
C248 0.047u
CTCSS_IN
150k 680p
C249 0.047u
MIC200 C209 470p
LOW PASS FILTER IC211 NJM2100V 1.461V 1 2 AOUT A-IN A+IN V8 V+ 7 6 5 1.451V
0.047u 33k R278 15k
R257 47k
R289
R288
C277
R220 470 C220 10u 10
R221 1.8k
1.451V
R287 100k
3 4
BOUTPUT B-INPUT B+INPUT
82k
C298
470p
R224
560k
0.068u
C296
R279
C224
68p
5.6k
4
OUT
IN(-) VSS
3 2 1
R223 1k
C290 0.1u
R222 18k
C221 0.1u R295
470p
R241 330 R243 100
1
J200 PTT MIC
R286 100k
0.056u C276 C275
R285 120k
0.022u C273
R284 15k
0.047u
2.902V
5
VDD
IN(+)
R281 C272
SPG REM
C299
C297
TONE SIGNAL DETECTION D204 MA742 C222 0.1u
MIC MUTE DIODE
KDZ3.3V C241 470p D206 C242
2.2u 4
0
C225
MIC_MUT
PROTECTION DIODE
BTL_IN
MIC MUTE SWITCH
REM PTT
3MS 1.087V C228
C229
D203 MA742
1.041V C226
R230 180k
R233 0
PTT WRITE FLASH
R232
0.1u
0.1u 0.478V Q201 2SC4738(GR) VOX AMPLIFIER
REM(TxD) RxD R297 PTT 100
0.022u
R231
IC202 IC203 IC204 IC206 IC207
:BD4724G :LM4865M :TC75S51F :BD4730G :TK71530ASCL
IC208 IC209 IC210 IC211
:M38C24M6502HP :AK2346 :AT24C01A10SI18 or CAT24WC01JI18 :NJM2100V
C227 1u
5.6k
Q200 Q201 Q210-212,215 Q213 Q216 Q217,218
:2SC4919 :2SC4738(GR) :DTA123JE :DTC114EE :2SC1362(GR) :CPH3413
Q219 Q220
:2SK1824 :2SC4617(S)
D200 D202 D203,204,208 D205 D206 D209,210
:1SR154-400 :DAN222 :MA742 :B30-2143-05 :KDZ3.3V :MA2S111
MPU FLASH-ROM I/O PORT
R229 22k
C295 3900p
VOX
TONE SIGNAL DETECTION
MODE_KEY
1M
100k
0
R227
R202
470p
R228 10k
R317
D202 DAN222
Q200 2SC4919
470p
IC204 TC75S51F MIC AMPLIFIER
10k
R242 330 AFO
27
X57-667 2/4
K
L
M
N
O
UBZ-LJ8
LV
SCHEMATIC DIAGRAM
TX-RX UNIT :RF SECTION (X57-6672-70) (B/2)
SHIELD CASE(VCO)
RX:1.889V TX:1.889V R3 47 L1 10u D2 1SV270 VARIABLE CAPACITANCE DIODE L3 39n C4 3.5p (B) C12 9p RX:0.835V TX:0.861V R16 RX:0.765V TX:0.765V C15 68k RX:1.794V TX:1.798V RX:0.774V TX:0.787V C26 8p L10 27n RX:1.847V TX:1.85V RX:1.798V TX:1.815V C28 3p
R1 10k
0.5p L4 10u
C7
OSCILLATOR Q2 2SC5066(O)
Q4 2SC5108(Y)
470p
6.8n
11p
10u
C2
L2
L6
R11
1.5k
RX:1.508V TX:1.513V
18k
BUFFER
22n
R20
R21
15k
3p
L9
0.5p
Q6 2SC5108(Y) RF AMPLIFIER
C9
1SV214 R10
C19 470p
R17
R7
R12
1k RF SWITCH D1 HVC131 R5 47k RX:2.816V TX:0.058V Q1 DTC114EE
R22
1k
R9 100k
L5
470p
D4 MA2S111
C25 470p RX:2.248V TX:2.246V
R18 220
4.7k
R19 100k C27 2p RX:0.755V TX:0.752V
C3 470p
RX:0.121V TX:1.711V
C6
1u
C22 22u 6.3
R13 10k
R14
RX:2.731V TX:2.732V D4 SPEED UP
C16
SWITCH CN1
20 19
Q5 2SC5108(Y) BUFFER
R6
C141 1000p
EP B DT 3R CK 3T UL GND 3C GND BUSY GND T0 GND MOD GND
C143 10u 10
C140 1000p
C142 1u
AFO B CRS B
0
3T B 3C
3R
1000p
C124
MAX DEV
VR1 47k
R30 10k
RECTIFIER D11 RB706F-40
R82
RX:1.17V C122 0.047u
4.7k
R83 270k RX:0.642V C129 1000p Q13 2SC4738(GR) NOISE AMPLIFIER
R35
150k
22k R24 1.2k R26 3.3k R27 0 R28 0
R77
L7 12n
L8 12n
C118 0.22u
C17 3p
C20 3p
RX:0.057V
C14
C18 8p
C23 5p
5p
C127
R84
1
0.033u
2
C125 1000p
C32 100p
C33 0.047u 35
C35 2.2u 6.3
C40 0.33u 35
150
PLL IC IC1 TB31202FN 1 L11 R25 10 2 3 FIN1 VCC1 CP1 GND1 LD CK DATA STB FIN2 VCC2 CP2 GND2 SW XIN XOUT BO 12 11 10 16 15 14
2nd IF 450kHz RX:2.485V C134 1800p R91 CF1 RX:1.591V
1000p
10u 10
C130
R89
4 R31 0 5
470p
C133 470p
330k
13
C138 10u 10
C34
C39
C41
47p
10
RX:1.926V
C36 C37 C38
100p 100p 100p
R32 R33 R34
100 6 100 7 100 8
8
7
6
5
4
3
2
DEC
IFIN
VCC
1
MIXOUT
9
D5 MA2S111
AFOUT
N-REC
N-DET
IFOUT
QUAD
OSCOUT
FILOUT
R86
1.2k
C43
DIODE
100p
MIXIN
C131
470p
RSSI
GND
OSCIN
R88
680
FILIN
10
11
12
13
14
15
16
9
RX:2.809V C116 0.01u
IF AMPLIFIER Q11 KTC4082 RX:0.715V R69 820
R29
56k
27p(J)
RX:0.929V
C135
FM IC IC2 TA31136FN L36
1000p
C42
R85
4.7k C132
470p
R87
3.3k
R92
R80 0
R81 0
1800p
C128
C136 0.1u
15K
1.5u
TCXO
2.735V
L12 4.7u
OUTPUT
GND
1.533V
R74 0
R75 0
R78 0
C44
C46
3R
8p
8p
R38
R37 12k VR3 68k TX-FREQ
470p
C45
33p C47
27k
C115 10u 10
+DC
VC
R72 100
C114 1000p
C117 0.01u
X1 L77-1930-05 21.25MHz
R90 47k
QUAD COIL
RX:2.809V
R73 330k
L35
C31 1800p
3R
RX:2.826V TX:2.826V 3C
RIPPLE FILTER Q3 2SC4617(S) RX:2.056V TX:2.059V 3C
470p
28
X57-667 3/4
470p
C30 470p
C5
47k
R8
C8
220
VARIABLE CAPACITANCE SWITCH
R2
8.2k
C10 470p
220
47
D3
47k D3
R15
C29
R4
470p
C13
100
P
Q
R
S
T
SCHEMATIC DIAGRAM
UBZ-LJ8
1
RX:0.145V TX:0.846V C73 470p L20 12n L21 15n C80 1p L22 15n ANT
Note : The components marked with a dot ( · ) are parts of layer 1.
TX-RX UNIT : RF SECTION (X57-6672-70) (B/2)
TX:4.47V RF AMPLIFIER TX:0.819V R95 10 C50 470p L37 6.8n C150 5p Q14 2SC5108(Y) R96 2.2k TX:1.118V TX:0.62V C52 150p RF AMPLIFIER Q7 2SC5092 TX:2.491V C58 10p L14 8.2n 6.8n L17 TX:1.636V C70 470p RF SWITCH D8 HVC131
C62
C68
C75
220n
L18
TX:1.367V
C55
C59 30p
R46 10k
L13 10n
7p
Q8 2SK3656 RF POWER AMPLIFIER
C77 5p
30p
L15
18p
4p
C79 5p
C81 1p
C146
C149
0 L38
R97
27n
R43 22k
R44 4.7k
2
TX:4.47V
4p
7p
TX:2.47V
R98
100
470p
0.1u
22p
470p
0.1u
0.1u
470p
22p
220 R50
22p
12k
VR4 22k
C53
C152
C57
L16
1u
C153
C63
C66
C65
C71
R47
C60
C61
R51
TX:2.465V
POWER
C148
C147 470p
100p
C64 470p
C67 1u
220
3
3T B
4
R99 0
R100 0
C88 3p
5
RX:1.7V C87 470p
100k
R52
R53
L26
IF XF1 21.7MHz RX:2.863V R71 470 L41 150n Q10 3SK318 1ST MIXER RX:1.695V C90 100p R56 0 RX:2.869V C94 5p
22n
68k
RX:2.863V
470p
RF AMPLIFIER R57 0 Q9 3SK318
27k
C98
C112
R60
C113
15p
L34
3p
1u
RX:1.165V C144 4.5p L29 18n C101 3p
L31 L79-1825-05 C102 470p
RX:0.096V TX:0.845V L32 4T
L27
R54 100k
R55
RX:2.87V R67
RX:0.286V
68k
RX:0.118V
20n
5p
D10 HSC277
L30
R64
R65
18n
1M
1M
470p
68k
82
27
2.2k
470p
447MHz
C103
C105
100k
5p
C107
470p
0.01u C110
C108
C109
470p
L33
47p
C96
R59
C99
6
R61
R68
RX:2.869V
C106
0.01u
470p
470p
C89
3R
IC1 IC2
:TB31202FN :TA31136FN
C93
Q1 Q2 Q3 Q4-6,14 Q7
:DTC114EE :2SC5066(O) :2SC4617(S) :2SC5108(Y) :2SC5092
Q8 Q9,10 Q11 Q13
:2SK3656 :3SK318 :KTC4082 :2SC4738(GR)
D1 D2 D3 D4,5 D8
L28
:HVC131 :1SV270 :1SV214 :MA2S111 :HVC131
R58
RF SWITCH
D10 D11
:HSC277 :RB706F-40
7
29
X57-667 4/4
TX-RX UNIT :CONTROL SECTION (X57-6672-70) (A/2)
NOTES: SP.ON SP.ON :4.5V SP.OFF SP.OFF :4.5V INT.ON INT.ON :4.5V INT.OFF:4.5V INT.OFF:4.5V EXT. EXT :4.49V BTL NORMAL EXT MUT 1 1 0 1 BTL_OUT 0 0 SP_MUT 1 0 (WHEN BTL_IN =LOW, SWITCH TO EXT MODE) R298 47k INTERNAL SPEAKER
AF AMPLIFIER AVR Q216 2SA1362(GR) D209 MA2S111 R321 2.7k
SP.ON SP.ON :3.647V SP.OFF SP.OFF :0.014V INT.ON INT.ON :3.647V INT.OFF:3.647V INT.OFF:3.647V EXT. EXT :3.633V
AF AMPLIFIER IC203 LM4865M 1
VCC VO2
TX-RX UNIT :RF SECTION (X57-6672-70) (B/2)
LV
C294 0.01u
SP.ON SP.ON :2.944V SP.OFF SP.OFF :0.004V INT.ON INT.ON :2.945V INT.OFF:2.944V INT.OFF:2.944V EXT. EXT :2.946V BTL_OUT
C211 470p
C212 10u10
8 7
-VIN BYPASS GND VO 1 HP_SEN
TONE SIGNAL DETECTION C201 D208 MA742
SHIELD CASE(VCO)
RF AMPLIFIER TX:1.118V TX:0.62V C52 150p 0 L38 R97 27n R43 22k R44 4.7k RF AMPLIFIER Q7 2SC5092 TX:2.491V C58 10p C55 C59 30p R46 10k L14 RX:1.889V TX:1.889V R3 L1 10u D2 1SV270 VARIABLE CAPACITANCE DIODE 1SV214 R10 R7 D3 VARIABLE CAPACITANCE SWITCH 47k D3 R4 1k RF SWITCH D1 HVC131 R5 47k RX:2.816V TX:0.058V Q1 DTC114EE 470p 6.8n C2 L2 L3 39n C4 3.5p (B) 0.5p L4 10u C7 C12 9p RX:0.835V TX:0.861V R16 RX:0.765V TX:0.765V C15 22n L9 10u 0.5p BUFFER C19 470p 68k RX:1.794V TX:1.798V RX:0.774V TX:0.787V C26 8p R11 1.5k 11p L6 RX:1.508V TX:1.513V 18k 15k 3p Q6 2SC5108(Y) RF AMPLIFIER 470p R98 C29 100 470p 0.1u 22p L10 27n RX:1.847V TX:1.85V TX:2.47V RX:1.798V TX:1.815V C28 3p R95 10 C50 470p C146 TX:0.819V L37 6.8n C149 4p 7p C150 5p Q14 2SC5108(Y) R96 2.2k
2 3
TX:4.47V L17 8.2n