Page 1
8130044600200
POWER446
Page 2
Contents
Revision History ---------------------------------------------------------------------------------------------------------1
Copyright Information -------------------------------------------------------------------------------------------1
Disclaimer------------------------------------------------------------------------------------------------------------------------1
Product Overview----------------------------------------------------------------------------------------------------------2
Product Controls---------------------------------------------------------------------------------------------------------------3
Software Specifications------------------------------------------------------------------------------------------------------4
Circuit Description------------------------------------------------------------------------------------------------------7
CPU Pins-------------------------------------------------------------------------------------------------------15
Parts List 1---------------------------------------------------------------------------------------------------------19
Tuning Description --------------------------------------------------------------------------------34
Troubleshooting Flow Chart--------------------------------------------------------------------------------------------42
Disassembly and Assembly-----------------------------------------------------------------------------------------------45
Exploded View------------------------------------------------------------------------------------------------------47
Parts List 2--------------------------------------------------------------------------------------------------------48
Packing Guide--------------------------------------------------------------------------------------------------------50
PCB View-------------------------------------------------------------------------------------------------------51
Level Diagram------------------------------------------------------------------------------------------------------53
Block Diagram------------------------------------------------------------------------------------------------------54
Schematic Diagram--------------------------------------------------------------------------------------------------------55
Specifications-----------------------------------------------------------------------------------------------------------------58
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POWER446 Service Manual
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Revision History
Version Date of Issue Description
V00 05-2011 Initial Release
Copyright Information
HYT is the trademark or registered trademark of Hytera Communications Co., Ltd. (the Company) in
PRC and/or other countries or areas. The Company retains the ownership of its trademarks and product
names. All other trademarks and/or product names that may be used in this manual are properties of
their respective owners.
The product described in this manual may include the Company’s computer programs stored in memory
or other media. Laws in PRC and/or other countries or areas protect the exclusive rights of the Company
with respect to its computer programs. The purchase of this product shall not be deemed to grant, either
directly or by implication, any rights to the purchaser regarding the Company’s computer programs. Any
of the Company’s computer programs may not be copied, modified, distributed, decompiled, or
reverse-engineered in any manner without the prior written consent of the Company.
Disclaimer
The Company endeavors to achieve the accuracy and completeness of this manual, but no warranty of
accuracy or reliability is given. All the specifications and designs are subject to change without notice
due to continuous technology development. No part of this manual may be copied, modified, translated,
or distributed in any manner without the express written permission of us.
If you have any suggestions or would like to learn more details, please visit our website at:
http://www.hytera.com
.
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Product Overview
Intended User
This manual is intended for use by qualified technicians only.
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Product Controls
13
15
14
16
11
3
2
12
5
10
4
1
9
8
7
6
No. Part Name No. Part Name No. Part Name
○
1
PTT Key
○
2
SK1 (programmable)
○
3
SK2 (programmable)
○
4
Speaker
○
5
Microphone
○
6
Antenna
○
7
LED Indicator
○
8
Channel Selector Knob
○
9
Radio On-Off/Volume
Control Knob
○
10
Battery Latch
○
11
Accessory Jack
○
12
Accessory Jack Cover
○
13
Belt Clip
○
14
Battery
○
15
Screw (Belt Clip)
○
16
Charging Piece
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Software Specifications
Description of Modes
User Mode
It is a conventional communication mode. The radio will enter this mode by default after power-on.
PC Programming Mode
You can use the programming software to access this mode and to set appropriate radio functions and
tuning parameters.
Wired Clone Mode
1. Description
Wired Clone mode is an independent mode, including User Clone Mode and Factory Clone Mode.
To access other modes, you must restart the radio.
1) User Clone Mode:
Connect two radios using a clone cable. Power on the source radio while holding down SK2, and it
will enter User Clone Mode after 2 seconds. The target radio can be directly turned on to enter the
User Mode. In this mode, data stored in EEPROM of the source radio will be cloned to EEPROM of
the target radio. The data transferred only involves channel data and general parameters, excluding
tuning data, version and serial No. and etc.
2) Factory Clone Mode:
Firstly, make sure that the SELF pin of MCU on the source radio is grounded correctly, and then
connect two radios using a clone cable. Power on the source radio while holding down SK2, and it
will enter Factory Clone Mode after 2 seconds. The target radio can be directly turned on to enter the
User Mode. The data transferred involves all data in EEPROM (including settings for the Manual
Tune Switch), other than the serial No.
2. Process
1) The LED flashes orange once after the source radio enters the Wired Clone Mode. Press SK2 again
to clone data to the target radio.
2) During cloning, the LED of the source radio flashes red, and the LED of the target radio flashes green.
When cloning is completed, both LEDs go out, indicating that both radios are ready for another cloning.
3) If any abnormal situation occurs during cloning, the source radio will stop cloning and its red LED will
go out, indicating that it is ready for another cloning.
4) When cloning is completed, the source radio goes back to the standby status. Press SK2 again to
begin another cloning.
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Manual Tune Mode
Hold down PTT and SK2 on the radio while powering it on, and the radio enters Manual Tune Mode
(Note: To enter the Manual Tune Mode, make sure its switch is set to Open via the programming
software.)
Do keep this option unchecked after setting in the factory, to avoid any unexpected modification. Such
values can only be reset and changed in Manual Tune Mode only.
Description of Tuning:
1. To enter Manual Tune Mode
Hold down PTT and SK2 for 2 seconds while powering on the radio. The LED glows orange to
indicate that the radio has entered the Manual Tune Mode. After the keys are released, the radio
directly enters the TX group by default (the tuning item depends on the position where the Channel
Selector knob locates). At this time, its LED glows red.
2. To switch between TX tuning items and RX tuning items
Rotate the Channel Selector knob to CH16 and long press PTT key to switch between TX group
and RX group.
The LED glows red in TX group.
The LED glows green in RX group.
3. To switch between tuning items within TX group/RX group
This operation is done through the Channel Selector knob.
TX group: CH1 to CH14 respectively represent TX Preset Power, TX Low Power, TX Medium Power,
TX High Power, CDCSS Deviation, CTCSS Deviation (low), CTCSS Deviation (medium),
CTCSS Deviation (high), MSK Deviation (reserved), VOX Level 1, VOX Level 2, VOX
Level 3, VOX Level 4, VOX Level 5 and TX Low Voltage Threshold.
The LED solidly glows red during TX group tuning (CH1 to CH14).
The red LED goes out during TX group tuning (CH15).
RX group: CH1 to CH8 respectively represent SQL On 1, SQL On 5, SQL On 9, SQL Off 1, SQL Off 5,
SQL Off 9, RX Low Voltage Threshold and RX Bandpass Filter.
The LED solidly glows green during RX group tuning (CH1 to CH8).
The green LED goes out during RX group tuning (CH9 to CH15).
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4. To switch within narrow bands
Under a certain tuning item, long press PTT (the LED flashes orange to indicate valid press) to enter
narrow bands; short press PTT to switch the frequency orderly.
5. To tune the value
Short press SK1 to increase the value in step of 1, or hold down this key to successively increase the
value in steps of 1. The value will remain unchanged once it reaches the allowed maximum value.
Short press SK2 to decrease the value in step of 1, or hold down this key to successively decrease
the value in steps of 1. The value will remain unchanged once it reaches the allowed minimum value.
6. About several special items
TX group: CH9 to CH14 stand for VOX Level 1, VOX Level 2, VOX Level 3, VOX Level 4, VOX Level
5 and TX Low Voltage Threshold respectively. These tuning items are related to AD sampling. Press
SK1 or SK2 after entering the above items, to activate AD sampling (including calculation) once.
Rotate the Channel Selector knob to save the current AD sampling value.
RX group: CH1 to CH7 stand for SQL On 1, SQL On 5, SQL On 9, SQL Off 1, SQL Off 5, SQL Off 9,
RX Low Voltage Threshold respectively. . These tuning items are related to AD sampling. Press SK1
or SK2 after entering the above items, to activate AD sampling (including calculation) once. Rotate
the Channel Selector knob to save the current AD sampling value.
7. About the key-press
Short press: key-press time shorter than 1.5 seconds;
Long press: key-press time not shorter than 1.5 seconds.
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Circuit Description
1 PLL Frequency Synthesizer
The PLL circuit mainly provides the local oscillator signal for RX and RF carrier signal for TX. It is
composed of VCO and the baseband processor IC, allowing frequency tracking and channel switching
under the control of MCU signals.
1) PLL
MB95F108AK
WPFV-GE1
U605
1/2
17bitDIV
32/33
OSC
1/2
21bitDIV
U202
CP
RX-VCO
L102
D103
L101
APC/TUNE
T/R-SW
CLK
DATA
EN
Q101
2SK508NV
D102
BUFFER
Q6
1
23
D104
D101
D100
Q100
2SK508NV
12.8MHZ
TX-VCO
LPF
Q5
1
23
Figure 1
The step frequency of the PLL circuit is 5.0 KHz, 6.25 KHz, 10.0 KHz or 12.5 KHz. In U202, the 38.4MHz
reference oscillator signal is divided into 5.0 KHz, 6.25 KHz, 10.0 KHz or 12.5 KHz reference
frequencies via a fixed counter. The signal from the VCO enters U202 after processed by the buffer
Q102 and amplifier Q103, and then it is applied to the variable frequency-divider in PLL for division. After
division, the signal is compared with the reference frequency at a phase detector (PD) in PLL. The signal
from the PD passes through a low-pass filter and then is applied to the varactors (D100、D101、D102 and
D103) of VCO so as to control the output frequency.
2) VCO
The VCO section is realized by the three-point capacitor oscillator circuit.
The oscillation frequency of VCO is generated by Q100 in TX mode and by Q101 in RX mode
respectively.
U202 generates a control voltage via PD to control the varactors (D100 and D101 in TX mode; D102 and
D103 in RX mode), making the oscillation frequency of VCO consistent with the preset frequency of
MCU in a wide frequency range.
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Q652 performs switching between transmission and reception under the control of T/R: in TX mode, T/R
is set to low level and Q653 is turned on, making Q100 operate; in RX mode, T/R is set to high level and
Q653 is cut off, making Q101 operate. The output from Q100 and Q101 is amplified by Q102 and then
feeds to the buffer amplifier for further processing.
When the PLL is unlocked, the LD pin of U202 outputs low level. If the microprocessor detects such
situation, TX/RX operation is prohibited, and an alarm sounds.
2. RF Power Amplifier Circuit (TX Section)
Figure 2
To obtain the desired RF power, the RF signal from VCO goes to the buffer Q104 and to the driver
amplifiers Q400 and Q401 in sequence. Then the amplified RF signal goes to Q402, which pre-amplifies
power of the input signal to drive the final-stage power amplifier Q403. The input RF signal is then further
amplified by Q403, and goes to the LC low-pass filter (LPF) through the TX/RX switching diode D401.
Finally, it is transmitted from the antenna after high-order harmonics are removed by LPF
3. RX Amplifier and Mixer Circuit (RX Section)
1) Low-noise Amplifier and Bandpass Filter Circuit
Figure 3
After the RX signals are received by the antenna, the undesired out-of-band signals are filtered out at the
electrically tunable bandpass circuit (D503, D504, L501, L502, C503, C505 and 507). Then the signals
are amplified by the low-noise amplifier (LNA) Q500 to reach a certain level for receiving. Afterwards, the
amplified signals pass through a two-stage bandpass circuit (mainly composed of D505, D507 and
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POWER446 Service Manual
9
peripheral components) to effectively eliminate out-of-band interference and to obtain pure RX RF
signals. Finally, the signals feed to the mixer circuit.
The electrically tunable control signal (its level can be obtained by searching the corresponding table, or
calculated by the formula) is provided by MCU, so that the varactor can operate within an appropriate
voltage range. It forms a bandpass filter with the peripheral inductors/capacitors, and changes with the
MCU control voltage so as to satisfy the requirements for preset RX sensitivity and out-of-band rejection.
2) Mixer and IF Bandpass Filter Circuit
Figure 4
This circuit applies active mixer to mix the local oscillator signal from VCO with the RX RF signal, to
provide the first IF signal for frequency discrimination by the demodulator chip.
The mixer Q501 employs a dual-gate MOSFET (3SK318) for better noise-control and square-law
performance, as well as high isolation degree between the local oscillator signal and the RX signal. In
addition, the mixer has a certain gain (adjustable via offset), so as to assure sufficient sensitivity.
After residual spurious signals are removed by the inductor L509, the signals from the mixer go to the
first IF filter, which employs a first-class crystal filter to assure sufficient bandwidth and good selectivity.
Then the signals go to the baseband processor (AN29160) for demodulation.
4. Automatic Power Control Circuit
R430
R421
Q431
DTA114YE
R437
C441
R422
R441
R433
R434
from MCU
V_BAT
TX_VCC
R432
R440
C435
C437
R438
C436
R442
C438
-+
+-
U430
NJM2904
1
3
425
7
8
6
R436
Q430
DTC114EE
2
31
R431
R420
R439
R500
C440C439
to RF PA(APC)
C434
R435
to BPF(TUNE)
Figure 5
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POWER446 Service Manual
10
MCU outputs appropriate PWM waveform according to the selected channel. This waveform is then
rectified by the RC filter circuit (R441, R442, C440 and C441) to generate level of APC/TUNE control
signal. One flow of the signal goes to R500 to serve as control voltage of the RX electrically tunable
circuit. In TX mode, the signal goes to R439 and R440 for voltage division, so as to get APC reference
voltage.
The error detect voltage is derived after the TX current goes through R420, R421 and R422. Then the
voltage is compared and amplified by the operational amplifier U430, and further compared with the APC
reference voltage. After these operations, the APC control voltage is output, and the close-loop negative
feedback control power is generated when the TX current changes.
5. Audio and Signaling Processing Circuit
The baseband processor (AN29160) is highly integrated and has multiple functions such as VOX Level
Detect & Output, SQ Level Detect & Output, RX/TX Audio Process & Convert, Audio Amplify, etc. In
addition, it can be used for both transmission and reception.
1) TX Audio & Signaling Process
D104
Q100
2SK508NV
TX-VCO
cpu
Pre
Emphasis
SF
AMP(TX)
sp Amp
Tone
AFMOD
Mic amp
U200
AN29160AA
PROCESSER
信令输入
AF
HPF
5th-HPF
mic
MIC
AF
mute
volume
mic mute
LIM
(TX)
0
Figure 6
a. TX audio processing: The audio signal from MIC is converted to electrical signal via acoustoelectric
conversion of MIC. After pre-emphasized, the audio signal is processed by a limiting amplifier (at
U200). Then the processed signal goes to the low-pass filter circuit to remove frequencies over
3KHz. Finally, the signal goes to the potentiometer (VR200) and then to VCO for direct frequency
modulation.
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b. TX signaling processing: MCU outputs, via the QTO port, signaling code waveform, which is divided
via RC circuit into two flows. One flow modulates the reference frequency oscillator of PLL directly,
while the other flow modulates VCO. Note: VR260 adjusts the amplitude proportion between the two
flows, to optimize the signaling waveform modulated on the carrier.
2) RX Audio & Signaling Process
RX
sp Amp
2ndIF BPF
SF
AMP(TX)
VOX
Tone
tone-LPF
DET
BGR
EN
RSSI
Mic amp
VCO
DATA
0
5th-LPF
IFAMP2
AF
HPF
PE
信令输出
5th-HPF
IFAmp1
SW
To MCU
IC
CF300
450KHz+/4.5K
OUT IN
VREF
TX
De
Emphasis
LATCH
AF
mute
SPVCC
volume
To MCU
CDC/CTC
MCU
mix2
mic mute
POWERREG
VCC
LIM
(TX)
SQ
AUDIO OUT
16Ω IW
U201
AF
AMP
U200
AN29160AA
PROCESSER
Figure 7
After demodulating the received signal, U200 outputs initial audio signal, which contains noise, signaling
and voice components. Therefore, audio is processed as follows:
a. RX audio processing: One flow of audio signal from U200 goes back to U200 after passing through
the RC low-pass filter and de-emphasis circuit. This flow of audio signal is amplified at U200, and
restored after frequencies below 300Hz are removed. The restored audio signal is adjusted by the
potentiometer and then applied to the audio power amplifier (U201), which performs power
amplification to drive the speaker directly. To obtain higher power, BTL output is adopted.
b. RX signaling processing: One flow of audio signal from U200 goes to the 300Hz low-pass filter
circuit (U640). After audio signals above 300Hz are removed, signaling (CTCSS or CDCSS) goes to
the QTIN pin of CPU. Then the input signaling is decoded by CPU.
c. Noise Signal Processing: One flow of audio signal from U200 goes back to U200. After they are
filtered, amplified and rectified at U200, a DC voltage signal (SQ) is derived and is sent to the BUSY
pin of MCU by the ND pin of U200. Then MCU processes the input signal.
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6. MCU Control Section
Channel SW
MB95F108AK
WPFV-GE1
U605
PTT
MON
BAT
AT24C64
U609
APC/TUNE
PLL
1.vox
2.BUSY_DET
8.UART
7.W/N
6.DC/CTC
5.SAVE
4.T/R
3.BEEP/CALL
X601
9.BAT_DET
U610
Reset
IC
10.PLL_LD
7.3728M
晶体
Figure 8
MCU operates at the clock frequency of 7.3728MHz. The MCU control circuit is mainly composed of
MCU, EEPROM, reset IC, keys and knobs etc. This section has the following functions:
1. Signal Control:
To control Battery Save Mode;
To control narrow band;
To control TX/RX switch;
To control APC/TUNE output voltage;
To control power supply of transmitter and audio amplifier;
To control SQL Off detection.
2. Signal Detect:
To detect startup of external PTT, MONI and VOX;
To detect PLL Unlock;
To detect VOX ON level;
To detect low battery alert;
To detect and determine external earpiece.
3. Data Transfer and Process:
To initialize EEPROM data;
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POWER446 Service Manual
13
To transfer programming data;
To process the code of Channel Selector knob;
To encode and decode signaling;
To transfer data of baseband processing chip (PLL).
7. Power Supply Processing
Figure 9
After power-on, one flow of battery voltage is filtered by L604 and C682, and then goes to the RF power
amplifier and audio power amplifier for amplification. Another flow goes to the 5V regulator (U606). After
regulated, the VCC_5V voltage is output for use by MCU and baseband processing chip. As the radio
operates at half-duplex mode, the TX and RX power supplies need to be controlled alternately. In
addition, to meet requirements of battery save mode, MCU needs to output a pulse signal (SAVE control
signal) with fixed duty ratio. If the SAVE control signal is at high level, Q610 is turned on and provides the
5V voltage (V_SAVE) for the operating circuit (PLL and RX circuit). If the SAVE control signal is a pulse
signal, the radio will enter Battery Save Mode. During transmission, CPU control signal (TXC) is at high
level. Then Q611 is turned on and provides 5V voltage (TX_VCC) for the operating circuit (TX circuit).
The power supply of the TX and RX circuits are protected by symmetrical voltage regulation measures.
When output voltage and current change are subject to the change of load, the close-loop feedback
circuit operates, regulating the output voltage to 5V.
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14
8. VOX Realization Circuit
Q202
2SA1832
1
2 3
Q201
2SK1824
2
31
J4
MICJACK
2431
VCC_5V
R251
1M
MIC_EN
EXPTT
C260
220P
RXD
mic
X1
-
2
+
1
R201
2.2K
C201
470P
C200
4.7u/10V
R203
4.7K
VCC_5V
R200
470
C213
1U
C212
0.1U
R205
47K
C202
0.1U
L200 1UH
R202 100
TP200
R208
100K
R207
56K
R206 1K
R204 470
C274
0.01U
Figure 10
Press the programmed VOX key, and the radio enters the VOX status. The VOX can be activated only
when MIC_EN and EXT-PTT are detected by MCU to switch from low level to high level within several
hundred milliseconds. Otherwise, it is detected as the earpiece without VOX so as to disable the VOX
function.
1. When a VOX earpiece is plugged into the accessory jack, Q201 is cut off, and MIC_EN switches
from low level to high level. Meantime, Q202 and R204 form a loop circuit with the external earpiece
(Q202 is conductive), and EXT-PTT switches from low level to high level. In this case, the VOX
earpiece is determined by MCU, and the VOX function is enabled. When the VOX level (5 selectable
levels) gets to the preset value, transmission is initiated, and the voice signal enters the baseband
processor (AN29160) via the processing path.
2. If it is an earpiece without VOX (namely an earpiece with PTT), Q201 is cut off, and MIC_EN
switches from low level to high level. However, Q202 does not form a loop circuit (maintaining the
cut-off status) and EXT-PTT is still at low level. In this case, MCU detects it as the earpiece without
VOX. The radio will return to normal mode, and will transmit if the PTT key on the earpiece is held
down.
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POWER446 Service Manual
15
CPU Pins
Pin No. Port Name Pin Name I/O
Description
1 AVcc Vcc
I
A/D power supply pin; to connect with the
power supply.
2 AVR Vcc
I
A/D reference input pin; to connect with the power
supply.
3 PE3/INT13 PTT I
PTT key input pin (connected with external
pull-up resistor) (valid at low level)
.
4 PE2/INT12 A_KEY I
SK1 input pin (connected with external pull-up
resistor) (valid at low level)
5 PE1/INT11 EXT-PTT I
Earpiece PTT input pin (connected with
external pull-down resistor) (valid at high level)
6 PE0/INT10 B_KEY I
SK2 input pin (connected with external pull-up
resistor) (valid at low level)
7 P83 ENC3 I
8 P82 ENC2 I
9 P81 ENC1 I
10 P80 ENC0 I
Channel Selector knob input pin (connected
with external pull-up resistor)
11 P71/TI0 T/R O
For TX/RX switch control: High (RX)/Low(TX)
12 P70/TO0 Reserve O Reserved
13 MOD Programming I
During programming, this pin is used to
connect with VCC and a 47K resistor is
connected between the pin and the grounded
Vss; otherwise, only a 47K resistor is
connected between the pin and the grounded
Vss.
14 X0 OSC0
O
15 X1 OSC1
I
For 7.3728MHz main crystal oscillator
16 Vss GND /
For grounding (During programming, this pin is
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POWER446 Service Manual
16
connected to GND.)
17 Vcc VCC
I
5V power supply pin (During programming,
this pin is connected with VCC.)
18 PG0 C /
Not used as I/O; a capacitor is connected
between the pin and the grounded Vss.
19 PG2/X1A OSC32K O
20 PG1/X0A OSC32K O
Subordinate crystal oscillator pin (reserved)
21 /RST RESET I
Reset pin (During programming, this pin is
connected to RSTX.)
22 P00/INT00 Reserve O
23 P01/INT01 Reserve O
24 P02/INT02 Reserve O
25 P03/INT03 Reserve O
Reserved
26 P04/INT04 PLLEN2
O
PLL enable pin
27 P05/INT05 PLLDATA2
O
PLL data pin
28 P06/INT06 PLLCLK2
O
PLL clock pin
29 P07/INT07 UL2 I
For detection of PLL circuit (TB31202)
(H: locked; L: unlocked) (connected with external
pull-up resistor)
30 P10/UI0 RXD I
UART RX pin (During programming, this pin is
connected to UI.)
31 P11/UO0 TXD O
UART TX pin (During programming, this pin is
connected to UO.)
32 P12/UCK0 Reserve O Reserved
33
P13/TRG0/AD
TG
Reserve I Reserved
34 P14/PPG0 MIC_EN I
For checking MIC connection (connected
with external pull-down resistor)
(valid at high
level)
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POWER446 Service Manual
17
35 P20/PPG00 CTC_DCS PWM CTCSS/CDCSS output pin
36 P21/PPG01 Reserve O Reserved
37 P22/TO00 TONE O
Beep tone/Call tone output pin
38 P23/TO01 W/N O
Wide/narrow band control pin (L: wide; H:
narrow)
39 P24/EC0 Reserve O Reserved
40 P50/SCL0 SCL SCL
EEPROM clock pin
41 P51/SDA0 SDA SDA
EEPROM data pin
42 P52/PPG1 AP/TU PWM
APC/TUNE pin
43 P53/TRG1 TX_CTRL O
TX power control pin (valid at high level)
44 P60/PPG10 PLLCLK O PLL clock pin
45 P61/PPG11 PLLDATA O PLL data pin
46 P62/TO10 PLLEN O PLL enable pin
47 P63/TO11 Reserve O Reserved
48 P64/EC1 Reserve O Reserved
49 P65/SCK Reserve O Reserved
50 P66/SOT Reserve O Reserved
51 P67/SIN Self I
Test pin (used for Factory Clone Mode,
connected with pull-up resistor)
52 P43/AN11 SPCNT O
Power control pin for main audio (valid at high
level)
53 P42/AN10 PCONT O
Power control pin for AN29160AA
54 P41/AN09 RLED O
Red LED pin
55 P40/AN08 GLED O
Green LED pin
56 P37/AN07 Reserve O Reserved
57 P36/AN06 Reserve O Reserved
58 P35/AN05 TI I/AD
CTCSS/CDCSS input pin
59 P34/AN04 BUSY I/AD
Busy channel detection pin
60 P33/AN03 BAT_DET I/AD
Battery strength detection pin
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18
61 P32/AN02 Reserve O Reserved
62 P31/AN01 Reserve I/AD
VOX detection input pin
63 P30/AN00 Reserve / Reserved
64 AVss GND /
For grounding
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POWER446 Service Manual
19
Parts List 1
No. Part No. Description Qty. Ref No. Print No.
1 3001050000000 Chip resistor 0Ω J 1/16W (RoHS) 1 C222 T2K
2 3001050000000 Chip resistor 0Ω J 1/16W (RoHS) 1 R13 B4K
3 3001050000000 Chip resistor 0Ω J 1/16W (RoHS) 1 R248 T4K
4 3001050000000 Chip resistor 0Ω J 1/16W (RoHS) 1 R269 B2K
5 3001050000000 Chip resistor 0Ω J 1/16W (RoHS) 1 R275 B4H
6 3001050000000 Chip resistor 0Ω J 1/16W (RoHS) 1 R308 T4J
7 3001050000000 Chip resistor 0Ω J 1/16W (RoHS) 1 R317 T3I
8 3001050000000 Chip resistor 0Ω J 1/16W (RoHS) 1 R318 B3J
9 3001050000000 Chip resistor 0Ω J 1/16W (RoHS) 1 R321 B1I
10 3001050000000 Chip resistor 0Ω J 1/16W (RoHS) 1 R408 T5F
11 3001050000000 Chip resistor 0Ω J 1/16W (RoHS) 1 R443 B5D
12 3001050000000 Chip resistor 0Ω J 1/16W (RoHS) 1 R704 T3K
13 3001050000000 Chip resistor 0Ω J 1/16W (RoHS) 1 R710 T3K
14 3001051000020 Chip resistor 10Ω F 1/16W (RoHS) 1 R116 T3G
15 3001051000020 Chip resistor 10Ω F 1/16W (RoHS) 1 R241 B3K
16 3001051000020 Chip resistor 10Ω F 1/16W (RoHS) 1 R243 B2A
17 3001051000020 Chip resistor 10Ω F 1/16W (RoHS) 1 R247 B2C
18 3001051000020 Chip resistor 10Ω F 1/16W (RoHS) 1 R406 T5F
19 3001051010040 Chip resistor 100Ω F 1/16W (RoHS) 1 R202 B1D
20 3001051010040 Chip resistor 100Ω F 1/16W (RoHS) 1 R540 T2G
21 3001051010040 Chip resistor 100Ω F 1/16W (RoHS) 1 R653 T4G
22 3001051010040 Chip resistor 100Ω F 1/16W (RoHS) 1 R654 T4G
23 3001051010040 Chip resistor 100Ω F 1/16W (RoHS) 1 R660 B5J
24 3001051010040 Chip resistor 100Ω F 1/16W (RoHS) 1 R697 B4J
25 3001051010040 Chip resistor 100Ω F 1/16W (RoHS) 1 R698 B4J
26 3001051020000 Chip resistor 1KΩ F 1/16W (RoHS) 1 R102 T4I
27 3001051020000 Chip resistor 1KΩ F 1/16W (RoHS) 1 R108 T4G
28 3001051020000 Chip resistor 1KΩ F 1/16W (RoHS) 1 R110 T3G
29 3001051020000 Chip resistor 1KΩ F 1/16W (RoHS) 1 R206 B1F
30 3001051020000 Chip resistor 1KΩ F 1/16W (RoHS) 1 R244 B1E
31 3001051020000 Chip resistor 1KΩ F 1/16W (RoHS) 1 R246 B2D
32 3001051020000 Chip resistor 1KΩ F 1/16W (RoHS) 1 R250 B1C
33 3001051020000 Chip resistor 1KΩ F 1/16W (RoHS) 1 R309 T3I
34 3001051020000 Chip resistor 1K
Ω F 1/16W (RoHS) 1 R310 T4J
35 3001051020000 Chip resistor 1KΩ F 1/16W (RoHS) 1 R631 B3B
36 3001051020000 Chip resistor 1KΩ F 1/16W (RoHS) 1 R632 B3A
37 3001051020000 Chip resistor 1KΩ F 1/16W (RoHS) 1 R633 B3B
38 3001051020000 Chip resistor 1KΩ F 1/16W (RoHS) 1 R634 B3A
39 3001051020000 Chip resistor 1KΩ F 1/16W (RoHS) 1 R643 T2E
40 3001051020000 Chip resistor 1KΩ F 1/16W (RoHS) 1 R644 B3I
41 3001051020000 Chip resistor 1KΩ F 1/16W (RoHS) 1 R649 T2D
42 3001051020000 Chip resistor 1KΩ F 1/16W (RoHS) 1 R650 T4G
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No. Part No. Description Qty. Ref No. Print No.
43 3001051020000 Chip resistor 1KΩ F 1/16W (RoHS) 1 R657 B3I
44 3001051020000 Chip resistor 1KΩ F 1/16W (RoHS) 1 R658 B3J
45 3001051020000 Chip resistor 1KΩ F 1/16W (RoHS) 1 R670 B5K
46 3001051020000 Chip resistor 1KΩ F 1/16W (RoHS) 1 R694 B3J
47 3001051030000 Chip resistor 10KΩ J 1/16W (RoHS) 1 R104 T5I
48 3001051030000 Chip resistor 10KΩ J 1/16W (RoHS) 1 R112 T3G
49 3001051030000 Chip resistor 10KΩ J 1/16W (RoHS) 1 R212 T2J
50 3001051030000 Chip resistor 10KΩ J 1/16W (RoHS) 1 R213 T1K
51 3001051030000 Chip resistor 10KΩ J 1/16W (RoHS) 1 R256 B1E
52 3001051030000 Chip resistor 10KΩ J 1/16W (RoHS) 1 R259 B2K
53 3001051030000 Chip resistor 10KΩ J 1/16W (RoHS) 1 R261 B4I
54 3001051030000 Chip resistor 10KΩ J 1/16W (RoHS) 1 R268 B2K
55 3001051030000 Chip resistor 10KΩ J 1/16W (RoHS) 1 R300 T3J
56 3001051030000 Chip resistor 10KΩ J 1/16W (RoHS) 1 R301 T3J
57 3001051030000 Chip resistor 10KΩ J 1/16W (RoHS) 1 R302 T3J
58 3001051030000 Chip resistor 10KΩ J 1/16W (RoHS) 1 R400 T3F
59 3001051030000 Chip resistor 10KΩ J 1/16W (RoHS) 1 R436 B4C
60 3001051030000 Chip resistor 10KΩ J 1/16W (RoHS) 1 R530 T3F
61 3001051030000 Chip resistor 10KΩ J 1/16W (RoHS) 1 R695 B3J
62 3001051030000 Chip resistor 10KΩ J 1/16W (RoHS) 1 R696 B3J
63 3001051040000 Chip resistor 100KΩ F 1/16W (RoHS) 1 R208 B1F
64 3001051040000 Chip resistor 100KΩ F 1/16W (RoHS) 1 R260 B4I
65 3001051040000 Chip resistor 100KΩ F 1/16W (RoHS) 1 R262 B4H
66 3001051040000 Chip resistor 100KΩ F 1/16W (RoHS) 1 R266 T4H
67 3001051040000 Chip resistor 100KΩ F 1/16W (RoHS) 1 R311 T2I
68 3001051040000 Chip resistor 100KΩ F 1/16W (RoHS) 1 R501 T3D
69 3001051040000 Chip resistor 100KΩ F 1/16W (RoHS) 1 R502 T3D
70 3001051040000 Chip resistor 100KΩ F 1/16W (RoHS) 1 R507 T2E
71 3001051040000 Chip resistor 100KΩ F 1/16W (RoHS) 1 R509 T2F
72 3001051040000 Chip resistor 100KΩ F 1/16W (RoHS) 1 R645 B4I
73 3001051040000 Chip resistor 100KΩ F 1/16W (RoHS) 1 R646 B4I
74 3001051040000 Chip resistor 100KΩ F 1/16W (RoHS) 1 R647 B3I
75 3001051040000 Chip resistor 100KΩ F 1/16W (RoHS) 1 R652 T4G
76 3001051040000 Chip resistor 100K
Ω F 1/16W (RoHS) 1 R655 B3J
77 3001051040000 Chip resistor 100KΩ F 1/16W (RoHS) 1 R669 B3J
78 3001051040000 Chip resistor 100KΩ F 1/16W (RoHS) 1 R707 T3K
79 3001051040000 Chip resistor 100KΩ F 1/16W (RoHS) 1 R708 T3K
80 3001051050000 Chip resistor 1MΩ F 1/16W (RoHS) 1 R211 T3J
81 3001051050000 Chip resistor 1MΩ F 1/16W (RoHS) 1 R251 B1F
82 3001051050000 Chip resistor 1MΩ F 1/16W (RoHS) 1 R437 B4D
83 3001051050000 Chip resistor 1MΩ F 1/16W (RoHS) 1 R500 T2E
84 3001051050000 Chip resistor 1MΩ F 1/16W (RoHS) 1 R667 B4I
85 3001051230000 Chip resistor 12KΩ J 1/16W (RoHS) 1 R222 T2K
86 3001051230000 Chip resistor 12KΩ J 1/16W (RoHS) 1 R242 B3K
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POWER446 Service Manual
21
No. Part No. Description Qty. Ref No. Print No.
87 3001051230000 Chip resistor 12KΩ J 1/16W (RoHS) 1 R313 T3I
88 3001051230000 Chip resistor 12KΩ J 1/16W (RoHS) 1 R314 T3J
89 3001051230000 Chip resistor 12KΩ J 1/16W (RoHS) 1 R315 T3J
90 3001051230000 Chip resistor 12KΩ J 1/16W (RoHS) 1 R504 T3F
91 3001051240000 Chip resistor 120KΩ J 1/16W (RoHS) 1 R109 T3G
92 3001051240000 Chip resistor 120KΩ J 1/16W (RoHS) 1 R229 T3K
93 3001051520010 Chip resistor 1.5KΩ F 1/16W (RoHS) 1 R404 T5F
94 3001051540000 Chip resistor 150KΩ F 1/16W (RoHS) 1 R225 T2K
95 3001051540000 Chip resistor 150KΩ F 1/16W (RoHS) 1 R306 T5J
96 3001051540000 Chip resistor 150KΩ F 1/16W (RoHS) 1 R430 B4C
97 3001051540000 Chip resistor 150KΩ F 1/16W (RoHS) 1 R431 B4C
98 3001051540000 Chip resistor 150KΩ F 1/16W (RoHS) 1 R432 B4C
99 3001051540000 Chip resistor 150KΩ F 1/16W (RoHS) 1 R433 B4C
100 3001051540000 Chip resistor 150KΩ F 1/16W (RoHS) 1 R434 B4C
101 3001051540000 Chip resistor 150KΩ F 1/16W (RoHS) 1 R435 B4C
102 3001051540000 Chip resistor 150KΩ F 1/16W (RoHS) 1 R439 B4D
103 3001051820000 Chip resistor 1.8KΩ J 1/16W (RoHS) 1 R303 T4J
104 3001051820000 Chip resistor 1.8KΩ J 1/16W (RoHS) 1 R506 T3E
105 3001051830000 Chip resistor 18KΩ J 1/16W (RoHS) 1 R216 T2K
106 3001051830000 Chip resistor 18KΩ J 1/16W (RoHS) 1 R224 T2K
107 3001051830000 Chip resistor 18KΩ J 1/16W (RoHS) 1 R233 T4K
108 3001051830000 Chip resistor 18KΩ J 1/16W (RoHS) 1 R239 T4K
109 3001051840000 Chip resistor 180KΩ J 1/16W (RoHS) 1 R107 T4G
110 3001051840000 Chip resistor 180KΩ J 1/16W (RoHS) 1 R238 T4K
111 3001051840000 Chip resistor 180KΩ J 1/16W (RoHS) 1 R316 T3I
112 3001051850000 Chip resistor 1.8MΩ J 1/16W (RoHS) 1 R228 T3K
113 3001052200010 Chip resistor 22Ω F 1/16W (RoHS) 1 R401 T4F
114 3001052220000 Chip resistor 2.2KΩ J 1/16W (RoHS) 1 R103 T4I
115 3001052220000 Chip resistor 2.2KΩ J 1/16W (RoHS) 1 R201 T1F
116 3001052220000 Chip resistor 2.2KΩ J 1/16W (RoHS) 1 R235 T4K
117 3001052230010 Chip resistor 22KΩ J 1/16W (RoHS) 1 R214 T2K
118 3001052230010 Chip resistor 22KΩ J 1/16W (RoHS) 1 R221 T2K
119 3001052720000 Chip resistor 2.7KΩ J 1/16W (RoHS) 1 R520 T2I
120 3001052720000 Chip resistor 2.7K
Ω J 1/16W (RoHS) 1 R659 T2E
121 3001052720000 Chip resistor 2.7KΩ J 1/16W (RoHS) 1 R663 T2D
122 3001053030000 Chip resistor 30KΩ F 1/16W (RoHS) 1 R218 T2K
123 3001053310010 Chip resistor 330Ω J 1/16W (RoHS) 1 R114 T3G
124 3001053310010 Chip resistor 330Ω J 1/16W (RoHS) 1 R403 T4F
125 3001053310010 Chip resistor 330Ω J 1/16W (RoHS) 1 R407 T4F
126 3001053310010 Chip resistor 330Ω J 1/16W (RoHS) 1 R656 B4A
127 3001053310010 Chip resistor 330Ω J 1/16W (RoHS) 1 R689 B4A
128 3001053320000 Chip resistor 3.3KΩ J 1/16W (RoHS) 1 R101 T4I
129 3001053320000 Chip resistor 3.3KΩ J 1/16W (RoHS) 1 R111 T3G
130 3001053320000 Chip resistor 3.3KΩ J 1/16W (RoHS) 1 R113 T3G
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POWER446 Service Manual
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No. Part No. Description Qty. Ref No. Print No.
131 3001053320000 Chip resistor 3.3KΩ J 1/16W (RoHS) 1 R115 T3F
132 3001053320000 Chip resistor 3.3KΩ J 1/16W (RoHS) 1 R230 T3K
133 3001053320000 Chip resistor 3.3KΩ J 1/16W (RoHS) 1 R236 T4K
134 3001053320000 Chip resistor 3.3KΩ J 1/16W (RoHS) 1 R263 B4H
135 3001053320000 Chip resistor 3.3KΩ J 1/16W (RoHS) 1 R312 B1I
136 3001053320000 Chip resistor 3.3KΩ J 1/16W (RoHS) 1 R639 T2D
137 3001053320000 Chip resistor 3.3KΩ J 1/16W (RoHS) 1 R664 T2D
138 3001053330000 Chip resistor 33KΩ F 1/16W (RoHS) 1 R417 T5E
139 3001053330000 Chip resistor 33KΩ F 1/16W (RoHS) 1 R512 T2G
140 3001053330000 Chip resistor 33KΩ F 1/16W (RoHS) 1 R514 T2G
141 3001053340000 Chip resistor 330KΩ J 1/16W (RoHS) 1 R701 B5J
142 3001053630000 Chip resistor 36KΩ J 1/16W (RoHS) 1 R226 T2K
143 3001053940000 Chip resistor 390KΩ J 1/16W (RoHS) 1 R223 T2K
144 3001053940000 Chip resistor 390KΩ J 1/16W (RoHS) 1 R227 T2K
145 3001054700000 Chip resistor 47Ω J 1/16W (RoHS) 1 R410 T5F
146 3001054700000 Chip resistor 47Ω J 1/16W (RoHS) 1 R415 T5E
147 3001054700000 Chip resistor 47Ω J 1/16W (RoHS) 1 R510 T2G
148 3001054710000 Chip resistor 470Ω J 1/16W (RoHS) 1 R200 T1F
149 3001054710000 Chip resistor 470Ω J 1/16W (RoHS) 1 R204 B1F
150 3001054720000 Chip resistor 4.7KΩ J 1/16W (RoHS) 1 R203 B1F
151 3001054720000 Chip resistor 4.7KΩ J 1/16W (RoHS) 1 R231 T3K
152 3001054720000 Chip resistor 4.7KΩ J 1/16W (RoHS) 1 R412 T5F
153 3001054720000 Chip resistor 4.7KΩ J 1/16W (RoHS) 1 R441 B4J
154 3001054720000 Chip resistor 4.7KΩ J 1/16W (RoHS) 1 R442 B4J
155 3001054720000 Chip resistor 4.7KΩ J 1/16W (RoHS) 1 R651 T5G
156 3001054720000 Chip resistor 4.7KΩ J 1/16W (RoHS) 1 R699 B4J
157 3001054720000 Chip resistor 4.7KΩ J 1/16W (RoHS) 1 R700 B4K
158 3001054730000 Chip resistor 47KΩ J 1/16W (RoHS) 1 R205 B1F
159 3001054730000 Chip resistor 47KΩ J 1/16W (RoHS) 1 R237 T4K
160 3001054730000 Chip resistor 47KΩ J 1/16W (RoHS) 1 R245 B2D
161 3001054730000 Chip resistor 47KΩ J 1/16W (RoHS) 1 R267 T4H
162 3001054730000 Chip resistor 47KΩ J 1/16W (RoHS) 1 R304 T4J
163 3001054730000 Chip resistor 47KΩ J 1/16W (RoHS) 1 R305 T4J
164 3001054730000 Chip resistor 47K
Ω J 1/16W (RoHS) 1 R402 T4F
165 3001054730000 Chip resistor 47KΩ J 1/16W (RoHS) 1 R416 T5E
166 3001054730000 Chip resistor 47KΩ J 1/16W (RoHS) 1 R636 B4I
167 3001054730000 Chip resistor 47KΩ J 1/16W (RoHS) 1 R637 B4I
168 3001054730000 Chip resistor 47KΩ J 1/16W (RoHS) 1 R638 B4I
169 3001054730000 Chip resistor 47KΩ J 1/16W (RoHS) 1 R641 B4I
170 3001054730000 Chip resistor 47KΩ J 1/16W (RoHS) 1 R668 B4J
171 3001054730000 Chip resistor 47KΩ J 1/16W (RoHS) 1 R690 B5J
172 3001054730000 Chip resistor 47KΩ J 1/16W (RoHS) 1 R692 T1E
173 3001054730000 Chip resistor 47KΩ J 1/16W (RoHS) 1 R693 B5I
174 3001054730000 Chip resistor 47KΩ J 1/16W (RoHS) 1 R702 T1D
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POWER446 Service Manual
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No. Part No. Description Qty. Ref No. Print No.
175 3001054740000 Chip resistor 470KΩ J 1/16W (RoHS) 1 R642 B2I
176 3001054740000 Chip resistor 470KΩ J 1/16W (RoHS) 1 R648 B3I
177 3001054790000 Chip resistor 4.7Ω J 1/16W (RoHS) 1 R249 B1E
178 3001054790000 Chip resistor 4.7Ω J 1/16W (RoHS) 1 R255 B2E
179 3001055610000 Chip resistor 560Ω J 1/16W (RoHS) 1 R100 T4I
180 3001055630000 Chip resistor 56KΩ J 1/16W (RoHS) 1 R207 B1F
181 3001055630000 Chip resistor 56KΩ J 1/16W (RoHS) 1 R219 T2K
182 3001055630000 Chip resistor 56KΩ J 1/16W (RoHS) 1 R254 B2K
183 3001055630000 Chip resistor 56KΩ J 1/16W (RoHS) 1 R411 T5F
184 3001055640000 Chip resistor 560KΩ J 1/16W (RoHS) 1 R519 T2I
185 3001056810000 Chip resistor 680Ω J 1/16W (RoHS) 1 R405 T5F
186 3001056810000 Chip resistor 680Ω J 1/16W (RoHS) 1 R515 T2G
187 3001058210000 Chip resistor 820Ω J 1/16W (RoHS) 1 R661 T2D
188 3001058220010 Chip resistor 8.2KΩ F 1/16W (RoHS) 1 R234 T4K
189 3001058230000 Chip resistor 82KΩ J 1/16W (RoHS) 1 R253 B3K
190 3001058230000 Chip resistor 82KΩ J 1/16W (RoHS) 1 R264 B4H
191 3001058230000 Chip resistor 82KΩ J 1/16W (RoHS) 1 R307 T5J
192 3001058240000 Chip resistor 820KΩ F 1/16W (RoHS) 1 R232 T3K
193 3001058240000 Chip resistor 820KΩ F 1/16W (RoHS) 1 R240 T4K
194 3001058240000 Chip resistor 820KΩ F 1/16W (RoHS) 1 R440 B4D
195 3001058240000 Chip resistor 820KΩ F 1/16W (RoHS) 1 R705 T3K
196 3001058240000 Chip resistor 820KΩ F 1/16W (RoHS) 1 R706 T3K
197 3001061510000 Chip resistor 150Ω J 1/10W (RoHS) 1 R419 B5C
198 3001070000000 Chip resistor 0Ω J 1/8W (RoHS) 1 L202 B2D
199 3001070000000 Chip resistor 0Ω J 1/8W (RoHS) 1 R413 T5E
200 3005051020010 Integrated resistor 1K J 1/16W (RoHS) 1 RN1 T4J
201 3099080398000 Chip resistor 0.39Ω J 1/4W (RoHS) 1 R420 B4C
202 3099080398000 Chip resistor 0.39Ω J 1/4W (RoHS) 1 R421 B4C
203 3099080398000 Chip resistor 0.39Ω J 1/4W (RoHS) 1 R422 B4C
204 3101050200010 Chip capacitor 2PF B 50V (RoHS) 1 C133 T3G
205 3101050200010 Chip capacitor 2PF B 50V (RoHS) 1 C501 T3D
206 3101050200010 Chip capacitor 2PF B 50V (RoHS) 1 C535 T2F
207 3101050200010 Chip capacitor 2PF B 50V (RoHS) 1 C561 T2H
208 3101050300000 Chip capacitor 3PF B 50V(RoHS) 1 C137 T3H
209 3101050300000 Chip capacitor 3PF B 50V(RoHS) 1 C500 T4D
210 3101050300000 Chip capacitor 3PF B 50V(RoHS) 1 C505 T3D
211 3101050300000 Chip capacitor 3PF B 50V(RoHS) 1 C560 T2H
212 3101050400010 Chip capacitor 4PF B 50V(RoHS) 1 C516 T3E
213 3101050400010 Chip capacitor 4PF B 50V(RoHS) 1 C532 T3F
214 3101050500010 Chip capacitor 5PF B 50V(RoHS) 1 C136 T3H
215 3101050500010 Chip capacitor 5PF B 50V(RoHS) 1 C138 T3H
216 3101050500010 Chip capacitor 5PF B 50V(RoHS) 1 C518 T2F
217 3101050590020 Chip capacitor 0.5PF B 50V(RoHS) 1 C400 T3F
218 3101050600010 Chip capacitor 6PF B 50V(RoHS) 1 C111 T5H
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POWER446 Service Manual
24
No. Part No. Description Qty. Ref No. Print No.
219 3101050600010 Chip capacitor 6PF B 50V(RoHS) 1 C120 T3H
220 3101050600010 Chip capacitor 6PF B 50V(RoHS) 1 C130 T3G
221 3101050600010 Chip capacitor 6PF B 50V(RoHS) 1 C141 T3G
222 3101050600010 Chip capacitor 6PF B 50V(RoHS) 1 C402 T4F
223 3101050600010 Chip capacitor 6PF B 50V(RoHS) 1 C405 T5F
224 3101050600010 Chip capacitor 6PF B 50V(RoHS) 1 C503 T3D
225 3101050600010 Chip capacitor 6PF B 50V(RoHS) 1 C507 T3E
226 3101050600010 Chip capacitor 6PF B 50V(RoHS) 1 C519 T2F
227 3101050600010 Chip capacitor 6PF B 50V(RoHS) 1 C526 T2F
228 3101050600010 Chip capacitor 6PF B 50V(RoHS) 1 C531 T3F
229 3101050800000 Chip capacitor 8PF B 50V(RoHS) 1 C528 T2F
230 3101050800000 Chip capacitor 8PF B 50V(RoHS) 1 C645 B5I
231 3101050800000 Chip capacitor 8PF B 50V(RoHS) 1 C691 B4I
232 3101050900000 Chip capacitor 9PF B 50V (RoHS) 1 C110 T5H
233 3101051000020 Chip capacitor 10PF J 50V(RoHS) 1 C132 T3G
234 3101051000020 Chip capacitor 10PF J 50V(RoHS) 1 C135 T3H
235 3101051000020 Chip capacitor 10PF J 50V(RoHS) 1 C321 T5I
236 3101051000020 Chip capacitor 10PF J 50V(RoHS) 1 C322 T5I
237 3101051000020 Chip capacitor 10PF J 50V(RoHS) 1 C435 B5D
238 3101051000020 Chip capacitor 10PF J 50V(RoHS) 1 C522 T2E
239 3101051000020 Chip capacitor 10PF J 50V(RoHS) 1 C541 T2G
240 3101051000020 Chip capacitor 10PF J 50V(RoHS) 1 C543 CT2F
241 3101051010030 Chip capacitor 100PF J 50V(RoHS) 1 C107 T5I
242 3101051010030 Chip capacitor 100PF J 50V(RoHS) 1 C201 T1F
243 3101051010030 Chip capacitor 100PF J 50V(RoHS) 1 C206 T3K
244 3101051010030 Chip capacitor 100PF J 50V(RoHS) 1 C266 B4H
245 3101051010030 Chip capacitor 100PF J 50V(RoHS) 1 C303 T3J
246 3101051010030 Chip capacitor 100PF J 50V(RoHS) 1 C304 T3J
247 3101051010030 Chip capacitor 100PF J 50V(RoHS) 1 C305 T3J
248 3101051010030 Chip capacitor 100PF J 50V(RoHS) 1 C334 B1I
249 3101051010030 Chip capacitor 100PF J 50V(RoHS) 1 C514 T3E
250 3101051010030 Chip capacitor 100PF J 50V(RoHS) 1 C545 T2F
251 3101051010030 Chip capacitor 100PF J 50V(RoHS) 1 C548 T2F
252 3101051010030 Chip capacitor 100PF J 50V(RoHS) 1 C669 T4J
253 3101051020010 Chip capacitor 1000PF K 50V(RoHS) 1 C105 T5H
254 3101051020010 Chip capacitor 1000PF K 50V(RoHS) 1 C106 T4H
255 3101051020010 Chip capacitor 1000PF K 50V(RoHS) 1 C204 T3K
256 3101051020010 Chip capacitor 1000PF K 50V(RoHS) 1 C248 B1E
257 3101051020010 Chip capacitor 1000PF K 50V(RoHS) 1 C250 B1E
258 3101051020010 Chip capacitor 1000PF K 50V(RoHS) 1 C254 B2D
259 3101051020010 Chip capacitor 1000PF K 50V(RoHS) 1 C265 T4H
260 3101051020010 Chip capacitor 1000PF K 50V(RoHS) 1 C320 T5I
261 3101051020010 Chip capacitor 1000PF K 50V(RoHS) 1 C323 T5I
262 3101051020010 Chip capacitor 1000PF K 50V(RoHS) 1 C341 T3I
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POWER446 Service Manual
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No. Part No. Description Qty. Ref No. Print No.
263 3101051020010 Chip capacitor 1000PF K 50V(RoHS) 1 C408 T5F
264 3101051020010 Chip capacitor 1000PF K 50V(RoHS) 1 C414 T5E
265 3101051020010 Chip capacitor 1000PF K 50V(RoHS) 1 C439 B4D
266 3101051020010 Chip capacitor 1000PF K 50V(RoHS) 1 C509 T3E
267 3101051020010 Chip capacitor 1000PF K 50V(RoHS) 1 C527 T2E
268 3101051020010 Chip capacitor 1000PF K 50V(RoHS) 1 C609 B3I
269 3101051020010 Chip capacitor 1000PF K 50V(RoHS) 1 C641 B4A
270 3101051020010 Chip capacitor 1000PF K 50V(RoHS) 1 C644 B4B
271 3101051020010 Chip capacitor 1000PF K 50V(RoHS) 1 C646 T2D
272 3101051020010 Chip capacitor 1000PF K 50V(RoHS) 1 C651 T4G
273 3101051020010 Chip capacitor 1000PF K 50V(RoHS) 1 C653 T5G
274 3101051020010 Chip capacitor 1000PF K 50V(RoHS) 1 C657 T2D
275 3101051020010 Chip capacitor 1000PF K 50V(RoHS) 1 C658 T1E
276 3101051020010 Chip capacitor 1000PF K 50V(RoHS) 1 C661 T1D
277 3101051020010 Chip capacitor 1000PF K 50V(RoHS) 1 C666 B4A
278 3101051020010 Chip capacitor 1000PF K 50V(RoHS) 1 C667 B3A
279 3101051020010 Chip capacitor 1000PF K 50V(RoHS) 1 C670 B5I
280 3101051020010 Chip capacitor 1000PF K 50V(RoHS) 1 C680 B3I
281 3101051020010 Chip capacitor 1000PF K 50V(RoHS) 1 C684 T1D
282 3101051020010 Chip capacitor 1000PF K 50V(RoHS) 1 C685 B5J
283 3101051020010 Chip capacitor 1000PF K 50V(RoHS) 1 C686 B2I
284 3101051020010 Chip capacitor 1000PF K 50V(RoHS) 1 C689 B4I
285 3101051030020 Chip capacitor 0.01UF K 25V(RoHS) 1 C237 T3K
286 3101051030020 Chip capacitor 0.01UF K 25V(RoHS) 1 C259 B2E
287 3101051030020 Chip capacitor 0.01UF K 25V(RoHS) 1 C274 B1F
288 3101051030020 Chip capacitor 0.01UF K 25V(RoHS) 1 C277 B4K
289 3101051030020 Chip capacitor 0.01UF K 25V(RoHS) 1 C300 T3I
290 3101051030020 Chip capacitor 0.01UF K 25V(RoHS) 1 C311 B3I
291 3101051030020 Chip capacitor 0.01UF K 25V(RoHS) 1 C313 B2K
292 3101051030020 Chip capacitor 0.01UF K 25V(RoHS) 1 C416 T4D
293 3101051030020 Chip capacitor 0.01UF K 25V(RoHS) 1 C419 B4C
294 3101051030020 Chip capacitor 0.01UF K 25V(RoHS) 1 C529 T2G
295 3101051030020 Chip capacitor 0.01UF K 25V(RoHS) 1 C540 T1G
296 3101051030020 Chip capacitor 0.01UF K 25V(RoHS) 1 C542 T2H
297 3101051030020 Chip capacitor 0.01UF K 25V(RoHS) 1 C546 T2I
298 3101051030020 Chip capacitor 0.01UF K 25V(RoHS) 1 C547 T2I
299 3101051030020 Chip capacitor 0.01UF K 25V(RoHS) 1 C656 B4K
300 3101051030020 Chip capacitor 0.01UF K 25V(RoHS) 1 C662 T2D
301 3101051030020 Chip capacitor 0.01UF K 25V(RoHS) 1 C677 T1E
302 3101051030020 Chip capacitor 0.01UF K 25V(RoHS) 1 C681 B3I
303 3101051040060 Chip capacitor 0.1UF K 16V(RoHS) 1 C1 B5I
304 3101051040060 Chip capacitor 0.1UF K 16V(RoHS) 1 C118 T4G
305 3101051040060 Chip capacitor 0.1UF K 16V(RoHS) 1 C127 T3G
306 3101051040060 Chip capacitor 0.1UF K 16V(RoHS) 1 C143 T3G
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No. Part No. Description Qty. Ref No. Print No.
307 3101051040060 Chip capacitor 0.1UF K 16V(RoHS) 1 C212 B1F
308 3101051040060 Chip capacitor 0.1UF K 16V(RoHS) 1 C217 T2K
309 3101051040060 Chip capacitor 0.1UF K 16V(RoHS) 1 C231 B2J
310 3101051040060 Chip capacitor 0.1UF K 16V(RoHS) 1 C240 T4K
311 3101051040060 Chip capacitor 0.1UF K 16V(RoHS) 1 C249 T2B
312 3101051040060 Chip capacitor 0.1UF K 16V(RoHS) 1 C253 T4J
313 3101051040060 Chip capacitor 0.1UF K 16V(RoHS) 1 C255 B2D
314 3101051040060 Chip capacitor 0.1UF K 16V(RoHS) 1 C256 B1E
315 3101051040060 Chip capacitor 0.1UF K 16V(RoHS) 1 C257 B2C
316 3101051040060 Chip capacitor 0.1UF K 16V(RoHS) 1 C272 B2E
317 3101051040060 Chip capacitor 0.1UF K 16V(RoHS) 1 C278 B3J
318 3101051040060 Chip capacitor 0.1UF K 16V(RoHS) 1 C315 T4J
319 3101051040060 Chip capacitor 0.1UF K 16V(RoHS) 1 C324 T2I
320 3101051040060 Chip capacitor 0.1UF K 16V(RoHS) 1 C325 T2I
321 3101051040060 Chip capacitor 0.1UF K 16V(RoHS) 1 C326 T2J
322 3101051040060 Chip capacitor 0.1UF K 16V(RoHS) 1 C329 T2J
323 3101051040060 Chip capacitor 0.1UF K 16V(RoHS) 1 C330 T2I
324 3101051040060 Chip capacitor 0.1UF K 16V(RoHS) 1 C331 T2I
325 3101051040060 Chip capacitor 0.1UF K 16V(RoHS) 1 C332 T2I
326 3101051040060 Chip capacitor 0.1UF K 16V(RoHS) 1 C333 B1I
327 3101051040060 Chip capacitor 0.1UF K 16V(RoHS) 1 C409 T4E
328 3101051040060 Chip capacitor 0.1UF K 16V(RoHS) 1 C415 T4D
329 3101051040060 Chip capacitor 0.1UF K 16V(RoHS) 1 C418 B4C
330 3101051040060 Chip capacitor 0.1UF K 16V(RoHS) 1 C433 B4D
331 3101051040060 Chip capacitor 0.1UF K 16V(RoHS) 1 C511 T3F
332 3101051040060 Chip capacitor 0.1UF K 16V(RoHS) 1 C515 T3F
333 3101051040060 Chip capacitor 0.1UF K 16V(RoHS) 1 C537 T2G
334 3101051040060 Chip capacitor 0.1UF K 16V(RoHS) 1 C549 T2I
335 3101051040060 Chip capacitor 0.1UF K 16V(RoHS) 1 C642 B3J
336 3101051040060 Chip capacitor 0.1UF K 16V(RoHS) 1 C650 T4G
337 3101051040060 Chip capacitor 0.1UF K 16V(RoHS) 1 C655 T5G
338 3101051040060 Chip capacitor 0.1UF K 16V(RoHS) 1 C683 B2I
339 3101051040060 Chip capacitor 0.1UF K 16V(RoHS) 1 C687 B5I
340 3101051050000 Chip capacitor 1UF K 6.3V(RoHS) 1 C213 B1F
341 3101051050000 Chip capacitor 1UF K 6.3V(RoHS) 1 C216 T1K
342 3101051050000 Chip capacitor 1UF K 6.3V(RoHS) 1 C218 T2J
343 3101051050000 Chip capacitor 1UF K 6.3V(RoHS) 1 C226 T2K
344 3101051050000 Chip capacitor 1UF K 6.3V(RoHS) 1 C230 B2J
345 3101051050000 Chip capacitor 1UF K 6.3V(RoHS) 1 C241 T4K
346 3101051050000 Chip capacitor 1UF K 6.3V(RoHS) 1 C242 T4K
347 3101051050000 Chip capacitor 1UF K 6.3V(RoHS) 1 C271 B2K
348 3101051050000 Chip capacitor 1UF K 6.3V(RoHS) 1 C273 B2K
349 3101051050000 Chip capacitor 1UF K 6.3V(RoHS) 1 C301 T3I
350 3101051050000 Chip capacitor 1UF K 6.3V(RoHS) 1 C306 T3I
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No. Part No. Description Qty. Ref No. Print No.
351 3101051050000 Chip capacitor 1UF K 6.3V(RoHS) 1 C307 T3I
352 3101051050000 Chip capacitor 1UF K 6.3V(RoHS) 1 C309 T3I
353 3101051050000 Chip capacitor 1UF K 6.3V(RoHS) 1 C310 B3I
354 3101051050000 Chip capacitor 1UF K 6.3V(RoHS) 1 C440 B4J
355 3101051050000 Chip capacitor 1UF K 6.3V(RoHS) 1 C441 B4K
356 3101051050000 Chip capacitor 1UF K 6.3V(RoHS) 1 C446 B5E
357 3101051050000 Chip capacitor 1UF K 6.3V(RoHS) 1 C678 B4K
358 3101051050000 Chip capacitor 1UF K 6.3V(RoHS) 1 C690 B3I
359 3101051050000 Chip capacitor 1UF K 6.3V(RoHS) 1 C692 T3K
360 3101051200020 Chip capacitor 12PF J 50V (RoHS) 1 C506 T3D
361 3101051200020 Chip capacitor 12PF J 50V (RoHS) 1 C520 T4E
362 3101051200020 Chip capacitor 12PF J 50V (RoHS) 1 C544 T2H
363 3101051230000 Chip capacitor 0.012UF K 25V(RoHS) 1 C238 T3K
364 3101051230000 Chip capacitor 0.012UF K 25V(RoHS) 1 C270 B2K
365 3101051500020 Chip capacitor 15PF J 50V(RoHS) 1 C121 T3H
366 3101051500020 Chip capacitor 15PF J 50V(RoHS) 1 C407 T5E
367 3101051520000 Chip capacitor 1500PF K 50V(RoHS) 1 C224 T2J
368 3101051520000 Chip capacitor 1500PF K 50V(RoHS) 1 C233 T3K
369 3101051590000 Chip capacitor 1.5PF B 50V (RoHS) 1 C533 T2F
370 3101051810010 Chip capacitor 180p J 50V(RoHS) 1 C513 T3F
371 3101051820000 Chip capacitor 1800PF K 50V(RoHS) 1 C235 T3K
372 3101051830000 Chip capacitor 0.018UF K 16V(RoHS) 1 C207 T3K
373 3101052200010 Chip capacitor 22PF J 50V(RoHS) 1 C245 T4K
374 3101052210010 Chip capacitor 220PF K 50V(RoHS) 1 C260 B1D
375 3101052210010 Chip capacitor 220PF K 50V(RoHS) 1 C275 B1C
376 3101052220010 Chip capacitor 2200pF K 50V(RoHS) 1 C243 T4K
377 3101052220010 Chip capacitor 2200pF K 50V(RoHS) 1 C258 T4K
378 3101052230000 Chip capacitor 0.022UF K 16V(RoHS) 1 C205 T3K
379 3101052230000 Chip capacitor 0.022UF K 16V(RoHS) 1 C215 T1K
380 3101052230000 Chip capacitor 0.022UF K 16V(RoHS) 1 C663 B4K
381 3101052710000 Chip capacitor 270PF J 50V(RoHS) 1 C412 T5E
382 3101053340010 Chip capacitor 0.33UF K 6.3V(RoHS) 1 C102 T4I
383 3101053340010 Chip capacitor 0.33UF K 6.3V(RoHS) 1 C104 T5I
384 3101053910000 Chip capacitor 390PF J 50V(RoHS) 1 C228 T2J
385 3101053910000 Chip capacitor 390PF J 50V(RoHS) 1 C234 T3K
386 3101053920000 Chip capacitor 3900PF K 50V(RoHS) 1 C267 B3K
387 3101053920000 Chip capacitor 3900PF K 50V(RoHS) 1 C679 B4K
388 3101054710010 Chip capacitor 470PF K 50V(RoHS) 1 C117 T4G
389 3101054710010 Chip capacitor 470PF K 50V(RoHS) 1 C126 T3G
390 3101054710010 Chip capacitor 470PF K 50V(RoHS) 1 C131 T4G
391 3101054710010 Chip capacitor 470PF K 50V(RoHS) 1 C134 T3G
392 3101054710010 Chip capacitor 470PF K 50V(RoHS) 1 C139 T3H
393 3101054710010 Chip capacitor 470PF K 50V(RoHS) 1 C140 T3G
394 3101054710010 Chip capacitor 470PF K 50V(RoHS) 1 C142 T3G
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No. Part No. Description Qty. Ref No. Print No.
395 3101054710010 Chip capacitor 470PF K 50V(RoHS) 1 C316 T4J
396 3101054710010 Chip capacitor 470PF K 50V(RoHS) 1 C335 T4I
397 3101054710010 Chip capacitor 470PF K 50V(RoHS) 1 C337 T3I
398 3101054710010 Chip capacitor 470PF K 50V(RoHS) 1 C342 T3I
399 3101054710010 Chip capacitor 470PF K 50V(RoHS) 1 C401 T4F
400 3101054710010 Chip capacitor 470PF K 50V(RoHS) 1 C403 T5F
401 3101054710010 Chip capacitor 470PF K 50V(RoHS) 1 C404 T4F
402 3101054710010 Chip capacitor 470PF K 50V(RoHS) 1 C406 T5F
403 3101054710010 Chip capacitor 470PF K 50V(RoHS) 1 C410 T4E
404 3101054710010 Chip capacitor 470PF K 50V(RoHS) 1 C417 T4D
405 3101054710010 Chip capacitor 470PF K 50V(RoHS) 1 C430 B5C
406 3101054710010 Chip capacitor 470PF K 50V(RoHS) 1 C432 B4D
407 3101054710010 Chip capacitor 470PF K 50V(RoHS) 1 C436 B4D
408 3101054710010 Chip capacitor 470PF K 50V(RoHS) 1 C437 B4C
409 3101054710010 Chip capacitor 470PF K 50V(RoHS) 1 C442 B5C
410 3101054710010 Chip capacitor 470PF K 50V(RoHS) 1 C445 B5E
411 3101054710010 Chip capacitor 470PF K 50V(RoHS) 1 C512 T3F
412 3101054710010 Chip capacitor 470PF K 50V(RoHS) 1 C530 T2G
413 3101054710010 Chip capacitor 470PF K 50V(RoHS) 1 C536 T3F
414 3101054710010 Chip capacitor 470PF K 50V(RoHS) 1 C538 T2G
415 3101054710010 Chip capacitor 470PF K 50V(RoHS) 1 C539 T1G
416 3101054710010 Chip capacitor 470PF K 50V(RoHS) 1 C601 T2B
417 3101054710010 Chip capacitor 470PF K 50V(RoHS) 1 C602 T2B
418 3101054710010 Chip capacitor 470PF K 50V(RoHS) 1 C648 B3A
419 3101054710010 Chip capacitor 470PF K 50V(RoHS) 1 C649 B2A
420 3101054710010 Chip capacitor 470PF K 50V(RoHS) 1 C654 T5G
421 3101054710010 Chip capacitor 470PF K 50V(RoHS) 1 C659 B3A
422 3101054710010 Chip capacitor 470PF K 50V(RoHS) 1 C660 B3B
423 3101054710010 Chip capacitor 470PF K 50V(RoHS) 1 C671 B5F
424 3101054710010 Chip capacitor 470PF K 50V(RoHS) 1 C675 B5F
425 3101054710010 Chip capacitor 470PF K 50V(RoHS) 1 C676 B5F
426 3101054730000 Chip capacitor 0.047UF K 10V(RoHS) 1 C223 T2K
427 3101054730000 Chip capacitor 0.047UF K 10V(RoHS) 1 C225 T2K
428 3101054730000 Chip capacitor 0.047UF K 10V(RoHS) 1 C232 T3K
429 3101054730000 Chip capacitor 0.047UF K 10V(RoHS) 1 R220 T2K
430 3101055600000 Chip capacitor 56PF J 50V (RoHS) 1 C339 T3I
431 3101055600000 Chip capacitor 56PF J 50V (RoHS) 1 C343 T3I
432 3101055620010 Chip capacitor 5600PF K 25V(RoHS) 1 C244 T4K
433 3101055620010 Chip capacitor 5600PF K 25V(RoHS) 1 C261 B4H
434 3101055630000 Chip capacitor 0.056UF K 10V(RoHS) 1 C236 T3K
435 3101056800000 Chip capacitor 68PF J 50V(RoHS) 1 C219 T2K
436 3101056800000 Chip capacitor 68PF J 50V(RoHS) 1 C220 T2K
437 3101056800000 Chip capacitor 68PF J 50V(RoHS) 1 C221 T2J
438 3101056800000 Chip capacitor 68PF J 50V(RoHS) 1 C340 T3I
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No. Part No. Description Qty. Ref No. Print No.
439 3101056820000 Chip capacitor 6800PF K 25V(RoHS) 1 C239 T3K
440 3101056830000 Chip capacitor 0.068UF K 6.3V(RoHS) 1 C227 T3K
441 3101060100010 Chip capacitor 1PF B 50V(RoHS) 1 C125 T4G
442 3101060100010 Chip capacitor 1PF B 50V(RoHS) 1 C452 T4C
443 3101060100010 Chip capacitor 1PF B 50V(RoHS) 1 C459 T5C
444 3101060300010 Chip capacitor 3PF B 50V(RoHS) 1 C115 T4G
445 3101060300010 Chip capacitor 3PF B 50V(RoHS) 1 C425 T5D
446 3101060300010 Chip capacitor 3PF B 50V(RoHS) 1 C427 T5C
447 3101060300010 Chip capacitor 3PF B 50V(RoHS) 1 C451 T3B
448 3101060300010 Chip capacitor 3PF B 50V(RoHS) 1 C455 T4B
449 3101060300010 Chip capacitor 3PF B 50V(RoHS) 1 C461 B2B
450 3101060300010 Chip capacitor 3PF B 50V(RoHS) 1 C462 B2B
451 3101060390000 Chip capacitor 0.3PF B 50V(RoHS) 1 C116 T4G
452 3101060400010 Chip capacitor 4PF B 50V(RoHS) 1 C114 T4H
453 3101060400010 Chip capacitor 4PF B 50V(RoHS) 1 C428 T5C
454 3101060500010 Chip capacitor 5PF B 50V(RoHS) 1 C113 T4H
455 3101060500010 Chip capacitor 5PF B 50V(RoHS) 1 C122 T3G
456 3101060500010 Chip capacitor 5PF B 50V(RoHS) 1 C124 T4G
457 3101060500010 Chip capacitor 5PF B 50V(RoHS) 1 C453 T4B
458 3101060590010 Chip capacitor 0.5PF B 50V(RoHS) 1 C112 T4H
459 3101060590010 Chip capacitor 0.5PF B 50V(RoHS) 1 C424 T4D
460 3101060590010 Chip capacitor 0.5PF B 50V(RoHS) 1 C426 T5C
461 3101061000000 Chip capacitor 10PF J 50V(RoHS) 1 C423 T4D
462 3101061010010 Chip capacitor 100PF J 50V(RoHS) 1 C450 T4C
463 3101061020000 Chip capacitor 1000PF K 50V(RoHS) 1 C458 T5C
464 3101061050020 Chip capacitor 1UF K 25V (RoHS) 1 C246 B3J
465 3101061050020 Chip capacitor 1UF K 25V (RoHS) 1 C247 B1E
466 3101061050020 Chip capacitor 1UF K 25V (RoHS) 1 C308 B3I
467 3101061590010 Chip capacitor 1.5PF B 50V(RoHS) 1 C454 T4C
468 3101061590010 Chip capacitor 1.5PF B 50V(RoHS) 1 C456 T4C
469 3101062240000 Chip capacitor 0.22UF K 10V(RoHS) 1 C100 T4I
470 3101062700010 Chip capacitor 27PF J 50V (RoHS) 1 C429 T4C
471 3101102260010 Chip capacitor 22uF Z 10V (RoHS) 1 C251 B1D
472 3102992000040 Adjustable capacitor 10pF ±2.5pF 55V (RoHS) 1 TC100 T5G
473 3102992000040 Adjustable capacitor 10pF ±2.5pF 55V (RoHS) 1 TC101 T4H
474 3210108230010 Wire-wound chip inductor 23nH J 590mA 0.046ohm(RoHS) 1 L104 T5H
475 3210305180000 Multi-layer chip inductor18nH J 300mA 0.36ohm (RoHS) 1 L113 T3H
476 3210305220000 Multi-layer chip inductor22nH J 300mA 0.42ohm (RoHS) 1 L114 T3G
477 3210305220000 Multi-layer chip inductor22nH J 300mA 0.42ohm (RoHS) 1 L400 T4F
478 3210305220000 Multi-layer chip inductor22nH J 300mA 0.42ohm (RoHS) 1 L530 T2F
479 3210305330000 Multi-layer chip inductor33nH J 200mA 0.58ohm (RoHS) 1 L115 T3G
480 3210305390000 Multi-layer chip inductor39nH J 200mA 0.65ohm (RoHS) 1 L111 T4G
481 3210306101000 Multi-layer chip inductor100nH J 300mA 0.90ohm (RoHS) 1 L504 T3F
482 3210306220000 Multi-layer chip inductor22nH J 300mA 0.50ohm (RoHS) 1 L401 T4F
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No. Part No. Description Qty. Ref No. Print No.
483 3210306561010 Multi-layer chip inductor560nH K 35mA 1.55ohm (RoHS) 1 L304 T3I
484 3210406331000 Multi-layer chip inductor330nH K 35mA 0.85ohm (RoHS) 1 L303 T3I
485 3210406331000 Multi-layer chip inductor330nH K 35mA 0.85ohm (RoHS) 1 L306 T3I
486 3212105470000 Multi-layer chip inductor47nH J 200mA 0.58ohm (RoHS) 1 L112 T3G
487 3213212102000 Wire-wound chip inductor 1uH J 245mA 1.1Ω (RoHS) 1 L403 T4E
488 3213212102000 Wire-wound chip inductor 1uH J 245mA 1.1Ω (RoHS) 1 L453 B4B
489 3213212820010 Wire-wound chip inductor 82nH J 300mA 0.75Ω(RoHS) 1 L408 B5C
490 3213306102000 Multi-layer chip inductor1uH K 25mA 0.6Ω(RoHS) 1 L200 T3K
491 3213306102000 Multi-layer chip inductor1uH K 25mA 0.6Ω(RoHS) 1 L300 T4J
492 3213306102000 Multi-layer chip inductor1uH K 25mA 0.6Ω(RoHS) 1 L301 T5I
493 3213306102000 Multi-layer chip inductor1uH K 25mA 0.6Ω(RoHS) 1 L307 T3I
494 3213306102000 Multi-layer chip inductor1uH K 25mA 0.6Ω(RoHS) 1 L308 T4I
495 3213306221010 Multi-layer chip inductor0.22uH K 50mA 0.8Ω(RoHS) 1 L607 B3I
496 3213306332000 Multi-layer chip inductor3.3uH K 15mA 1.55Ω(RoHS) 1 L101 T5H
497 3213306332000 Multi-layer chip inductor3.3uH K 15mA 1.55Ω(RoHS) 1 L102 T3H
498 3213306332000 Multi-layer chip inductor3.3uH K 15mA 1.55Ω(RoHS) 1 L103 T5H
499 3213306332000 Multi-layer chip inductor3.3uH K 15mA 1.55Ω(RoHS) 1 L105 T4G
500 3213306332000 Multi-layer chip inductor3.3uH K 15mA 1.55Ω(RoHS) 1 L106 T3H
501 3213306332000 Multi-layer chip inductor3.3uH K 15mA 1.55Ω(RoHS) 1 L108 T4G
502 3213306332000 Multi-layer chip inductor3.3uH K 15mA 1.55Ω(RoHS) 1 L109 T4H
503 3213306332000 Multi-layer chip inductor3.3uH K 15mA 1.55Ω(RoHS) 1 L305 T3I
504 3221506601000 Bead600Ω 100MHz ±25% 500mA (RoHS) 1 L100 T5I
505 3221506601000 Bead600Ω 100MHz ±25% 500mA (RoHS) 1 L402 T4F
506 3221506601000 Bead600Ω 100MHz ±25% 500mA (RoHS) 1 L650 T4G
507 3221507221000 Bead220Ω 100MHz ±25% 2000mA (RoHS) 1 L404 T4E
508 3221507600000 Bead60Ω 100MHz ±25% 3000mA (RoHS) 1 L407 T4D
509 3221507600000 Bead60Ω 100MHz ±25% 3000mA (RoHS) 1 L604 T2B
510 3231351640000 Air-core inductor E2-0.35*1.6*4TL(RoHS) 1 L450 T4C
511 3231351640000 Air-core inductor E2-0.35*1.6*4TL(RoHS) 1 L451 T4C
512 3231351640000 Air-core inductor E2-0.35*1.6*4TL(RoHS) 1 L452 T4B
513 3231351640000 Air-core inductor E2-0.35*1.6*4TL(RoHS) 1 L454 T5B
514 3231351640000 Air-core inductor E2-0.35*1.6*4TL(RoHS) 1 L500 T4D
515 3231351680000 Air-core inductor E2-0.35*1.6*8TR(RoHS) 1 L406 T4D
516 3304040200000 Varactor VR:30V 19.7pF/1VR 2.1pF/28VR(RoHS) 1 D104 T4H
517 3304060300050 Varactor VR:15V 16.4pF/1VR 5.5pF/4VR (RoHS) 1 D100 T5H
518 3304060300050 Varactor VR:15V 16.4pF/1VR 5.5pF/5VR (RoHS) 1 D101 T5H
519 3304060300050 Varactor VR:15V 16.4pF/1VR 5.5pF/6VR (RoHS) 1 D102 T3H
520 3304060300050 Varactor VR:15V 16.4pF/1VR 5.5pF/7VR (RoHS) 1 D103 T3H
521 3307110100070 LED super red 100mcd 30mA 1.85V (RoHS) 1 D602 B4A
522 3307110100080 LED super green 15mcd 25mA 2.2V(RoHS) 1 D601 B4A
523 3399990000260 Rectifier diode 10V 15mA 380mV/1mA(RoHS) 1 D508 T3E
524 3401001000080 PNP transistor 15V 800mA (RoHS) 1 Q654 T1E
525 3401001000490 PNP transistor 50V 150mA (RoHS) 1 Q202 B1F
526 3401001000490 PNP transistor 50V 150mA (RoHS) 1 Q655 T3K
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No. Part No. Description Qty. Ref No. Print No.
527 3401002000990 NPN transistor10V 30mA (RoHS) 1 Q102 T4G
528 3401002000990 NPN transistor10V 30mA (RoHS) 1 Q103 T3H
529 3401002000990 NPN transistor10V 30mA (RoHS) 1 Q104 T3G
530 3401002000990 NPN transistor10V 30mA (RoHS) 1 Q105 T3I
531 3401002000990 NPN transistor10V 30mA (RoHS) 1 Q400 T4F
532 3401002000990 NPN transistor10V 30mA (RoHS) 1 Q502 T2I
533 3403007000000 Transistor Vce:50V VIoff:0.5V VIon:3V 70mA(RoHS) 1 Q300 T2I
534 3403007000020 Transistor Vce:50V VIoff:0.3V VIon:1.4V 70mA(RoHS) 1 Q431 B4D
535 3403008000010 Transistor Vce:50V VIoff:0.5V VIon:3V 100mA (RoHS) 1 Q204 B2D
536 3403008000010 Transistor Vce:50V VIoff:0.5V VIon:3V 100mA (RoHS) 1 Q430 B5C
537 3403008000010 Transistor Vce:50V VIoff:0.5V VIon:3V 100mA (RoHS) 1 Q614 B4A
538 3403008000010 Transistor Vce:50V VIoff:0.5V VIon:3V 100mA (RoHS) 1 Q615 B4A
539 3403009000010 Transistor 50V -100mA (RoHS) 1 Q609 T2D
540 3403009000010 Transistor 50V -100mA (RoHS) 1 Q613 T2E
541 3406001000090 NPN transistor9V 100mA(RoHS) 1 Q401 T4F
542 3411002000020 NPN transistor50V 150mA(RoHS) 1 Q650 T4G
543 3418001000010 NPN transistor10V 50mA (RoHS) 1 Q500 T3E
544 3499000000140 N-JFET VGS:15V VGSoff:-1.4V IDSS:50mA(RoHS) 1 Q100 T4H
545 3499000000140 N-JFET VGS:15V VGSoff:-1.4V IDSS:50mA(RoHS) 1 Q101 T3G
546 3499000000150 Transistor -50V/50V -100mA/100mA (RoHS) 1 Q652 T4G
547 3499000000180 PNP transistor 12V 2.5A(RoHS) 1 Q205 B2D
548 3499000000180 PNP transistor 12V 2.5A(RoHS) 1 Q610 T2E
549 3499000000180 PNP transistor 12V 2.5A(RoHS) 1 Q611 T2D
550 3501020000030 N-MOSFET VDS:6V ID:20mA VGS(th):0.7V(RoHS) 1 Q501 T2G
551 3503010000010 P-MOSFET VDS:-30V ID:-100mA VGS(th):-1.9V(RoHS) 1 Q653 T4G
552 3503020000030 N-MOSFET VDS:30V ID:100mA VGS(th):3.0V (RoHS) 1 Q201 B1F
553 3503020000030 N-MOSFET VDS:30V ID:100mA VGS(th):3.0V (RoHS) 1 Q203 T4K
554 3503020000030 N-MOSFET VDS:30V ID:100mA VGS(th):3.0V (RoHS) 1 Q657 B5D
555 3503040000000 Compound MOSFET VDS:30V ID:0.2A VGS(th):1V(RoHS) 1 Q612 T1E
556 3504990000010 PA MOSFET VDS:30V ID:600mA VGS(th):1.8V 1.4W(RoHS) 1 Q402 T5E
557 3604999000010 PLL IC 100MHZ~1.4G 2.4V~5V(RoHS) 1 U202 T4I
558 3605008005070 Operational amplifier 3~32V 300mW 100dB dual-operation(RoHS) 1 U430 B4D
559 3605008005070 Operational amplifier 3~32V 300mW 100dB dual-operation(RoHS) 1 U431 B2K
560 3605017005540 Operational amplifier 1.8~15V 220mW 39dB dual-operation(RoHS) 1 U201 B2E
561 3608015000000 Power management IC 5V (RoHS) 1 U606 B3I
562 3609016000000 RF/If demodulation chip HSOP056-P-0300A AN29160AA(RoHS) 1 U200 T3J
563 3610007000020 MCU 8-bit 2.7~5.5V 10MHz(RoHS) 1 U605 B4J
564 3619006005220 Reset IC 1.5Vdd 4.5Vdect(RoHS) 1 U610 B5J
565 3701012850010 Temperature compensated crystal oscillator 12.8MHz (RoHS) 1 X300 T5J
566 3701737230020 Crystal 7.3728MHz 30~100ppm 8~12pF (RoHS) 1 X601 B4I
567 3802388540010 Crystal filter 38.850MHz ±5.0KHz 4.0dB (RoHS) 1 XF1 T2H
568 3101054700010 Chip capacitor 47PF J 50V(RoHS) 1 C280 B1A
569 3101054740000 Chip capacitor 0.47UF Z 6.3V(RoHS) 1 C202 T1F
570 3001061020010 Chip resistor 1KΩ J 1/10W (RoHS) 1 R409 T5F
Page 34
POWER446 Service Manual
32
No. Part No. Description Qty. Ref No. Print No.
571 3302030500020 Zener diode 18V (RoHS) 1 D610 T2B
572 3399990000080 Zener diode 6.8V (RoHS) 1 D210 B1D
573 3399990000080 Zener diode 6.8V (RoHS) 1 D220 B1C
574 3399990000080 Zener diode 6.8V (RoHS) 1 D250 B1E
575 3399990000080 Zener diode 6.8V (RoHS) 1 D430 B5D
576 3104082260060 Tantalum capacitor22UF K 10V (RoHS) 1 C673 B3I
577 3104081060120 Tantalum capacitor10UF M 16V (RoHS) 1 C229 B2J
578 3104081060120 Tantalum capacitor10UF M 16V (RoHS) 1 C252 B1E
579 3104081060120 Tantalum capacitor10UF M 16V (RoHS) 1 C431 B4C
580 3104074750070 Tantalum capacitor4.7UF M 10V (RoHS) 1 C200 T1F
581 3104074750070 Tantalum capacitor4.7UF M 10V (RoHS) 1 C262 B4H
582 3104074750070 Tantalum capacitor4.7UF M 10V (RoHS) 1 C695 T3K
583 3104074750070 Tantalum capacitor4.7UF M 10V (RoHS) 1 C696 T3K
584 3104072250060 Tantalum capacitor2.2UF M 10V (RoHS) 1 C302 T3I
585 3104072250060 Tantalum capacitor2.2UF M 10V (RoHS) 1 C434 B5D
586 3104072250060 Tantalum capacitor2.2UF M 10V (RoHS) 1 C643 T2E
587 3104072250060 Tantalum capacitor2.2UF M 10V (RoHS) 1 C664 T2D
588 3104072250060 Tantalum capacitor2.2UF M 10V (RoHS) 1 C665 T2E
589 3104071050070 Tantalum capacitor1UF M 16V (RoHS) 1 C264 B4H
590 3104081560050 Tantalum capacitor15UF M 10V(RoHS) 1 C652 T5G
591 3104084750040 Tantalum capacitor4.7uF K 16V (RoHS) 1 C101 T4I
592 3104071560040 Tantalum capacitor15UF M 6.3V (RoHS) 1 C312 B2I
593 3001051250000 Chip resistor 1.2M J 1/16W (RoHS) 1 R217 T2J
594 3001052210000 Chip resistor 220Ω J 1/16W (RoHS) 1 R709 T3K
595 3001055600000 Chip resistor 56Ω J 1/16W (RoHS) 1 R105 T5G
596 3101060700020 Chip capacitor 7PF B 50V (RoHS) 1 C422 T4D
597 3101061200000 Chip capacitor 12PF J 50V (RoHS) 1 C421 T5D
598 3303030300000 Schottky barrier diode 40V 30mA 0.26V/1mA (RoHS) 1 D651 T3K
599 3401002000150 NPN transistor50V 150mA (RoHS) 1 Q656 T3K
600 3002996830060 Trimmer resistor 68K ±25% 0.15W (RoHS) 1 VR200 B4K
601 3002996830060 Trimmer resistor 68K ±25% 0.15W (RoHS) 1 VR260 B5H
602 3002996830060 Trimmer resistor 68K ±25% 0.15W (RoHS) 1 VR300 T4J
603 3002996830060 Trimmer resistor 68K ±25% 0.15W (RoHS) 1 VR601 B5J
604 3104274760000 Tantalum capacitor 47UF M 16V (RoHS) 1 C682 T3B
605 3305180300000 Diode 100mA max 1Ω (RoHS) 1 D401 T4C
606 3101074750010 Chip capacitor 4.7UF K 10V(RoHS) 1 C318 T5J
607 3215006100010 Multi-layer chip inductor10nH J 600mA 0.12Ω(RoHS) 1 L405 T4E
608 3303240000000 Switching diode 75V 200mA 1.25V 6ns (RoHS) 1 D607 B5J
609 3303240000000 Switching diode 75V 200mA 1.25V 6ns (RoHS) 1 D650 T5G
610 3303990000060 Switching diode 35V 100mA 1V (RoHS) 1 D400 T3F
611 3303990000060 Switching diode 35V 100mA 1V (RoHS) 1 D500 T3F
612 3303990000060 Switching diode 35V 100mA 1V (RoHS) 1 D501 T3D
613 3303990000060 Switching diode 35V 100mA 1V (RoHS) 1 D502 T3D
614 41006101000L0 PCB main board (RoHS) 1
Page 35
POWER446 Service Manual
33
No. Part No. Description Qty. Ref No. Print No.
615 3001054730010 Chip resistor 47KΩ F 1/16W (RoHS) 1 R513 T2G
616 3001052710010 Chip resistor 270Ω J 1/16W (RoHS) 1 R503 T3F
617 3001052710010 Chip resistor 270Ω J 1/16W (RoHS) 1 R516 T2G
618 3001052710010 Chip resistor 270Ω J 1/16W (RoHS) 1 R517 T2H
619 3001052710010 Chip resistor 270Ω J 1/16W (RoHS) 1 R518 T2I
620 3001053930000 Chip resistor 39KΩ J 1/16W (RoHS) 1 R257 B2K
621 3001053930000 Chip resistor 39KΩ J 1/16W (RoHS) 1 R270 B3K
622 3001056830000 Chip resistor 68KΩ J 1/16W (RoHS) 1 R252 B3K
623 3001056830000 Chip resistor 68KΩ J 1/16W (RoHS) 1 R258 B2K
624 3001058220000 Chip resistor 8.2KΩ J 1/16W (RoHS) 1 R438 B4D
625 3001058220000 Chip resistor 8.2KΩ J 1/16W (RoHS) 1 R505 T3E
626 3001055630010 Chip resistor 56KΩ F 1/16W (RoHS) 1 R511 T2G
627 3101052000020 Chip capacitor 20PF J 50V(RoHS) 1 C510 T3E
628 3101053900000 Chip capacitor 39PF J 50V(RoHS) 1 C411 T4E
629 3101058200000 Chip capacitor 82PF J 50V(RoHS) 1 C269 B2K
630 3101058210010 Chip capacitor 820PF K 50V (RoHS) 1 C268 B3K
631 3101060200010 Chip capacitor 2PF B 50V (RoHS) 1 C457 T4B
632 3210306180000 Multi-layer chip inductor18nH J 350mA 0.45ohm (RoHS) 1 L503 T3E
633 3210306270000 Multi-layer chip inductor27nH J 300mA 0.55ohm (RoHS) 1 L512 T2F
634 3210306330000 Multi-layer chip inductor33nH J 300mA 0.60ohm (RoHS) 1 L511 T2F
635 3213212331000 Wire-wound chip inductor 330nH J 400mA 0.6Ω (RoHS) 1 L509 T2G
636 3217105010000 Wire-wound chip inductor 1nH J 1360mA 0.045Ω(RoHS) 1 R521 T3E
637 3217106829010 Wire-wound chip inductor 8.2nH G 700mA (RoHS) 1 L505 T2F
638 3217112102020 Wire-wound chip inductor 1uH J 370mA 1.75Ω (RoHS) 1 L510 T1G
639 3231351650000 Air-core inductor E2-0.35*1.6*5TL(RoHS) 1 L501 T3D
640 3231351650000 Air-core inductor E2-0.35*1.6*5TL(RoHS) 1 L502 T3E
641 3231351650000 Air-core inductor E2-0.35*1.6*5TL(RoHS) 1 L506 T3F
642 3231351650000 Air-core inductor E2-0.35*1.6*5TL(RoHS) 1 L508 T2F
643 3304180000000 Varactor 15V 9.3~21pF (RoHS) 1 D503 T3D
644 3304180000000 Varactor 15V 9.3~21pF (RoHS) 1 D504 T3E
645 3304180000000 Varactor 15V 9.3~21pF (RoHS) 1 D505 T2F
646 3304180000000 Varactor 15V 9.3~21pF (RoHS) 1 D507 T2F
647 3504990000040 PA MOSFET 10uA 25V 10uA 7.2V 7W (RoHS) 1 Q403 T5E
648 3801045030170 Ceramic filter 450KHz ±4.5KHz 6.0dB (RoHS) 1 CF300 T1J
649 5205000001530 Battery connector, black (RoHS) 1 G1 T3C
650 3101060600010 Chip capacitor 6PF B 50V (RoHS) 1 C123 T3G
651 3210108270000 Wire-wound chip inductor 27nH J 560mA 0.051ohm (RoHS) 1 L107 T3H
652 3212106221000 Multi-layer chip inductor220nH J 300mA 0.4ohm (RoHS) 1 L110 T3G
653 3001051510000 Chip resistor 150Ω J 1/16W (RoHS) 1 R106 T4H
654 3101052240080 Chip capacitor 0.22uF K 16V(RoHS) 1 C203 T3K
655 3101055690110 Chip capacitor 5.6PF B 50V(RoHS) 1 C502 T3D
656 3101055690110 Chip capacitor 5.6PF B 50V(RoHS) 1 C508 T3E
657 3101052790060 Chip capacitor 2.7PF B 50V(RoHS) 1 C521 T2F
658 3612031000130 Memory EEPROM 64K 1.7-5.5V (RoHS) 1 U609 B3K
Page 36
POWER446 Service Manual
34
Tuning Description
I Required Test Instruments:
Radio communication test set (HP8921) 1 set
10V/3A regulated DC power supply 1 set
Digital voltmeter 1 set
Ammeter 1 set
II Preparation
Place the board to be tested on the test fixture (please ensure good connection between each test point
and the fixture), and connect the board to a power supply.
III Tuning Procedures
Description of Tuning Procedures
1) PCB Tuning
Before the PCB arrives at each work station for specification inspection, programs must be
downloaded and EEPROM must be initialized by the profiles (downloading with a test framework/
initializing via programming software or through wired clone). If any adjustment is required,
connect the programming cable to the radio and enter the tuning mode for PC adjustment.
2) Radio Tuning
Rotate the Channel Selector knob to CH1, and hold down PTT and SK2 for 1.5 seconds while
powering on the radio. The LED will glow orange when the radio enters the Tuning Mode. After the
keys are released, the radio will enter the default tuning item in TX group (preset power), and the
LED will glow red. Then follow the instructions to tune each item.
Or connect the programming cable to the radio for real-time tuning in PC Programming Mode.
2. Description of Tuning Items:
Wide Band Narrow Band
Channel
Tunable
Frequency
Freq.1 Freq.2 Freq.3 Freq.4 Freq.5 Freq.1 Freq.2 Freq.3 Freq.4 Freq.5
TX Item
1
TX Preset Power
Y
2
TX Low Power
Y Y Y Y Y
3
TX
Medium
Power
(Reserved)
4
TX High Power
Y Y Y Y Y
Page 37
POWER446 Service Manual
35
5
CDCSS
Deviation
Y Y Y Y Y
6
CTCSS
Deviation(67Hz)
Y Y Y Y Y
7
CTCSS
Deviation(151.8H
z)
Y Y Y Y Y
8
CTCSS
Deviation(254.1H
z)
Y Y Y Y Y
9
MSK Deviation
(reserved)
10
VOX Level 1
Y
11
VOX Level 2
Y
12
VOX Level 3
Y
13
VOX Level 4
Y
14
VOX Level 5
Y
15
TX Low Voltage
Threshold
Y
RX Item
1
SQL On 1
Y Y Y Y Y
2
SQL On 5
Y Y Y Y Y
3
SQL On 9
Y Y Y Y Y
4
SQL Off 1
Y Y Y Y Y
5
SQL Off 5
Y Y Y Y Y
6
SQL Off 9
Y Y Y Y Y
7
RX Low Voltage
Threshold
Y
8
Bandpass Filter
Y Y Y Y Y
Note: Y indicates frequencies available for tuning, and the rest are blank channels without tuning items.
3. Specific Operations and Requirements:
(1) Tuning outside the mode (conventional tuning items): TX Frequency Tolerance, VCO Lock Voltage,
Maximum Deviation and Modulation Sensitivity.
Note: CH1, CH2 and CH3 have been preset as narrow bands with low, medium and high frequencies
respectively. Make sure the antenna or load is connected before tuning.
Measurement Tuning
Item Condition
Test
Instrument
Test
Point
Part Method
Specification
s / Remarks
Page 38
POWER446 Service Manual
36
TX
Frequency
Tolerance
Set to CH2 and hold
down PTT to transmit.
Communicat
ion Test Set
Antenna VR300
Tune VR300 with
ceramic tuning tool
to control the
center frequency
within the error
range.
≤150Hz
Set to CH1 and hold
down PTT to transmit.
Tune TC100 with
ceramic tuning tool
until the lock
voltage meets the
requirements.
1.1~1.3V
TX VCO
Lock Voltage
Set to CH3 and hold
down PTT to transmit.
TC100
Check
≥1V
Set to CH1
Tune TC101 with
ceramic tuning tool
until the lock
voltage meets the
requirements.
1.1~1.3V
RX VCO
Lock Voltage
Set to CH3
Digital
Voltmeter
CV
TC101
Check
≥1V
Maximum
Frequency
Deviation
Narrow
Band
Set to
CH1, CH2
and CH3
respectivel
y, and hold
down PTT
to
transmit.
Communicat
ion Test Set
BFP:
<20Hz~15k
Hz AF:
1kHz
150mV
VR200
Tune VR200 with
ceramic tuning tool
until the frequency
deviation satisfies
the requirements.
1.8~2.1KHz
Modulation
Sensitivity
Narrow
Band
Set to
CH1, CH2
and CH3
respectivel
y, and hold
down PTT
to
transmit.
Communicat
ion Test Set
BPF: 0.3
KHz～3KHz
AF:1KHz
Antenna
Earpiece
Socket
Tune audio output
signal of the
communication test
set, until the
frequency
deviation reaches
1.5KHz.
9±3mV
Page 39
POWER446 Service Manual
37
(2) Tuning in the mode (Note: Make sure that the antenna or load is connected before tuning.)
Measurement Tuning
Item Condition
Test
Instrument
Test
Point
Part Method
Specifications
/Remarks
Set to CH4 and
hold down PTT to
enable this
function at low
frequency.
High
Short press PTT
to switch
frequencies
(refer to the table
of Tuning Items).
Press SK1 or
SK2 to tune
the output
power, and
rotate the
Channel
Selector knob
to save it.
4-4.3W
I≤1.4A
Set to CH2 and
hold down PTT to
enable this
function at low
frequency.
TX
Power
Low
Short press PTT
to switch
frequencies
(refer to the table
of Tuning Items).
Communicatio
n Test Set
Ammeter
Antenna
Connector
SK1
SK2
Press SK1 or
SK2 to tune
the output
power, and
rotate the
Channel
Selector knob
to save it.
0.5W±0.1W
I≤0.8A
CDCSS
Waveform
Set to CH5 and
hold down PTT to
enable this
function at low
frequency. Short
press PTT to
switch
frequencies.
VR260
Tune VR260
with ceramic
tuning tool and
make the
waveform
similar to
square
waveform.
CDCSS
Deviation
Set to CH5 and
hold down PTT to
enable this
function at low
frequency. Short
press PTT to
switch
frequencies.
Communicatio
n Test Set
BPF:
<20Hz~300Hz
Antenna
VR601
SK1
SK2
Enter the
Tuning Mode if
necessary, and
press SK1 or
SK2 to make
slight tuning
untilthe
CDCSS
deviation
meets the
requirements.
350~600Hz(38
0~420Hz is
recommended)
Page 40
POWER446 Service Manual
38
CTCSS
Deviation
Set to CH6, CH7
and CH8
respectively, and
hold down PTT to
enable this
function at low
frequency. Short
press PTT to
switch
frequencies.
Communicatio
n Test Set
BPF:
<20Hz~300Hz
Antenna
VR601
SK1
SK2
Enter the
Tuning Mode if
necessary, and
press SK1 or
SK2 to make
slight tuning
until the
CTCSS
deviation
meets the
requirements.
350~600Hz
(380~420Hz is
recommended)
Set to CH10 and
VOX Level 1.
Press SK1 or
SK2 to enable
this function.
Communicatio
n Test Set
BPF:
<20Hz~15kHz
AF: 1kHz
10mV
Apply SK1 or
SK2 to perform
tuning, and
rotate the
Channel
Selector knob
to save it after
one-point
tuning.
Set to CH11 and
VOX Level 2.
Press SK1 or
SK2 to enable
this function.
Communicatio
n Test Set
BPF:
<20Hz~15kHz
AF: 1kHz
6mV
Apply SK1 or
SK2 to perform
tuning, and
rotate the
Channel
Selector knob
to save it after
one-point
tuning.
VOX
Set to CH12 and
VOX Level 3.
Press SK1 or
SK2 to enable
this function.
Communicatio
n Test Set
BPF:
<20Hz~15kHz
AF: 1kHz
4.5mV
Antenna
Earpiece
socket
SK1
SK2
Apply SK1 or
SK2 to perform
tuning, and
rotate the
Channel
Selector knob
to save it after
one-point
tuning.
Page 41
POWER446 Service Manual
39
Set to CH13 and
VOX Level 4.
Press SK1 or
SK2 to enable
this function.
Communicatio
n Test Set
BPF:
<20Hz~15kHz
AF: 1kHz
3.5mV
Apply SK1 or
SK2 to perform
tuning, and
rotate the
Channel
Selector knob
to save it after
one-point
tuning.
Set to CH14 and
VOX Level 5.
Press SK1 or
SK2 to enable
this function.
Communicatio
n Test Set
BPF:
<20Hz~15kHz
AF: 1kHz
2mV
Apply SK1 or
SK2 to perform
tuning, and
rotate the
Channel
Selector knob
to save it after
one-point
tuning.
TX Low Voltage
Threshold
Digital
Voltmeter
Power
Supply
Port
Power
supply
Tune the
output voltage
and check the
emergency
level.
≤5.9V: the
alert tone will
sound to
indicate
transmission
inhibition if
PTT is held
down.
Set to CH8 at low
frequency
RX Sensitivity
(Bandpass)
Short press PTT
to switch
frequencies.
Communicatio
n Test Set
SSG: -119dBm
MOD: 1KHz
DEV: 3.0KHz
Filter:
0.3~3KHz
Antenna
Earpiece
Socket
SK1
SK2
Check the
bandpass
waveform.
Apply SK1 or
SK2 to perform
tuning, and
rotate the
Channel
Selector knob
to save it after
five-point
tuning.
Rotate the
Volume
Control knob
to a proper
location until
the output
amplitude is
not limited.
SINAD: ≥12dB
Squel
ch On
Narrow
Band
Long press PTT
to enter narrow
band, and hold
down SK1 or
SK2 to enable
this function.
Short press PTT
Communicatio
n Test Set
SSG: -125dBm
MOD: 1KHz
DEV: 1.5KHz
Filter:
0.3~3KHz
Tune the SSG
output signal to
squelch level.
Rotate the
Channel
Selector knob
to save the
Squelch level
(Level 1):
-125±1dB
Page 42
POWER446 Service Manual
40
to switch the
frequency.
Communicatio
n Test Set
SSG: -113dBm
MOD: 1KHz
DEV: 1.5KHz
Filter:
0.3~3KHz
value after
five-point
tuning.
Squelch level
(Level 9):
SINAD:
20±1dB
Communicatio
n Test Set
SSG: -123dBm
MOD: 1KHz
DEV: 1.5KHz
Filter:
0.3~3KHz
Squelch level
(Level 1):
-128±1dB
Squel
ch Off
Narrow
Band
Long press PTT
to enter narrow
band, and hold
down SK1 or
SK2 to enable
this function.
Short press PTT
to switch the
frequency.
Communicatio
n Test Set
SSG: -115dBm
MOD: 1KHz
DEV: 1.5KHz
Filter:
0.3~3KHz
Antenna
Earpiece
Socket
SK1
SK2
Tune the SSG
output signal to
squelch level.
Rotate the
Channel
Selector knob
to save the
value after
five-point
tuning.
Squelch level
(Level 9):
SINAD:
17±1dB
RX Low Voltage
Threshold
Digital
Voltmeter
Power
Supply
Port
Power
supply
Tune the
output voltage
and check the
emergency
level.
≤7.2V: the
LED
(excluding
the LED of
7.4V) flashes
and the alert
tone sounds;
≤6.56V:the
alert tone
sounds to
indicate
transmission
inhibition in
case of
holding
down PTT
for
transmission
.
Page 43
POWER446 Service Manual
41
Appendix 1: Reference Value for Source Radio
Wide Bandwidth Narrow Bandwidth
Item
Freq. 1 Freq. 2 Freq. 3 Freq. 4 Freq. 5 Freq. 1 Freq. 2 Freq. 3 Freq. 4 Freq.
5
TX Preset Power 446
TX Low Power 742 714 692 676 672
TX High Power 1111 1 076 1 0 5 5 1047 1 072
CDCSS Deviation 66 67 67 67 69 38 38 39 40 39
CTCSS
Deviation(67Hz)
121 125 128 131 135 69 72 72 75 77
CTCSS
Deviation(151.8Hz)
121 124 126 128 131 68 70 72 73 75
CTCSS
Deviation(254.1Hz)
133 135 137 140 143 75 77 78 78 81
VOX Level 1 55
VOX Level 2 45
VOX Level 3 25
VOX Level 4 19
VOX Level 5 15
TX Low Voltage
Threshold
158
SQL On 1 27 25 27 25 24 18 18 17 17 20
SQL On 5 21 19 19 18 19 14 13 13 13 14
SQL On 9 9 9 9 9 9 7 7 7 7 7
SQL Off 1 39 30 31 32 32 27 26 24 25 26
SQL Off 5 28 25 25 25 26 21 21 19 17 19
SQL Off 9 12 11 12 11 13 8 8 8 8 8
RX Low Voltage
Threshold
166
Bandpass Filter 353 401 428 470 500
Page 44
POWER446 Service Manual
42
Troubleshooting Flow Chart
TX Circuit
No
transmission
Start
Normal TX
power supply?
LED of D602
glows red？
Check the TX
power supply.
TX VCO
locked?
Check the
TX VCO.
Check the
TX channel.
Replace
D602.
No sound
LED fails to
glow/flash.
Check the
antenna.
Check Q400.
Q401, Q402
and Q403 .
Yes
No
Check the
APC circuit.
Low TX
power
Check the
voice channel
(MIC,VR200,
D104)
Replace
D602.
Yes
No No
Yes
Page 45
POWER446 Service Manual
43
RX Circuit
Start
No signal
received
The RX circuit is
normally supplied?
Yes
No
Check the RX
power supply
circuit.
The RX SQL level is
set correctly ?
The RX LED works
normally?
The RX frequency is
set correctly ?
The RX signaling is set
correctly ?
The speaker works
normally?
The audio amplifier
works normally?
The Volume Control knob
works normally?
P29 and P52
of baseband processor U200
output signals normally?
The modulation parts
work normally?
IF/mixer circuit works
normally?
RF mixer circuit works
normally?
Change the RX
frequency.
Change the RX
SQL level.
Replace the RX
LED D601.
Change the RX
signaling.
Replace the
speaker.
Check the audio
amplifier circuit.
Replace the
Volume Control
knob.
Check audio
processing
circuit.
Check and
replace CD300
and CF300.
Check Q105,
U200 (P12, P21)
and XF1
Check the local
oscillator VCO circuit
and Q501.
Check BPF
circuit and Q500
Check the
antenna.
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
No
No
No
Completed
Yes
Yes
No
No
No
No
No
No
No
Yes
Page 46
POWER446 Service Manual
44
MCU
Start
Normal
power-on alert?
The speaker
works normally?
Yes
No
Yes
No
Clock crystal
(X601) of MCU works
normally?
Normal VCC
(operating voltage of
MCU)?
Yes
No
Check U606.
Replace X601.
No
Yes
Other pins control
normally?
MCU works
normally.
Yes
No
Check pin
connection, or
reprogram.
Replace the
speaker.
Page 47
POWER446 Service Manual
45
Disassembly and Assembly
Disassembling the Aluminum Chassis
① Remove the volume control knob.
② Remove the channel selector knob.
③ Unscrew the nut for the volume control knob.
④ Unscrew the nut for the channel selector knob.
⑤ Unfasten the two screws at the bottom of the radio.
Figure 1
⑥ Lift the bottom of the aluminum chassis, pull the aluminum chassis backwards and take it out.
⑦ Remove the rear cover.
Figure 2
⑧ The disassembled parts are shown as figure 3.
5
5
4
3
2
1
7
6
Page 48
POWER446 Service Manual
46
Figure 3
Assembling the Aluminum Chassis
To assemble the aluminum chassis, please perform the above steps in a reverse way.
Page 49
POWER446 Service Manual
47
Exploded View
5
8
9
13
16
12
11
20
22
19
18
3
4
2
44
42
39
41
32
34
35
28
27
26
38
17
30
31
36
15
14
33
45
43
6
1
37
23
29
25
10
40
21
7
24
46
Page 50
POWER446 Service Manual
48
Parts List 2
No. Part Number Description Qty.
1
6000374000000
Antenna cap 00 (RoHS)
1
2
6001311000000
Antenna sleeve 00 (RoHS)
1
3
6000845100020 Encoder knob 02 (RoHS)
1
4
6201739000000 Inner lining of knob 00 (RoHS)
1
5
6001315000000 Antenna washer 00 (RoHS)
1
6
7400366000000
PC pad for antenna 00 (RoHS)
1
7
6100487000000 O_ring for antenna 00 (RoHS)
1
8
6000884100010 Ultrasonic front case 01 (RoHS)
1
9
6000842100010 Plastic PTT key 01 (RoHS)
1
10
6100312000010 PTT key (silicone rubber) 01 (RoHS)
1
11
4210060000000 Lead (RoHS)
1
12
6100307000010 Waterproof ring for radio 01 (RoHS)
1
13
7000276000000 Antenna core 00 (RoHS)
1
14
4302020000140 Volume switch (RoHS)
1
15
4304030000010 Gray code rotary switch (RoHS)
1
16
41006103000D0 PCB for PTT key (RoHS)
1
17
7300032000000
Metal dome for PTT key 00 (RoHS)
1
18
5205000001000 Battery connector (RoHS)
1
19
6100314000000 Waterproof ring for battery connector 00 (RoHS)
1
20
7103006001000 Machine screw 00 (RoHS)
2
21
7500116000020 Heat sink pad 02 (RoHS)
1
22
7102005000000 Machine screw 00 (RoHS)
2
23
6000843100000 Rear cover 00 (RoHS)
1
24
7400218000000
Waterproof and dustproof breathable film 00 (RoHS)
1
25
7102508000010 Machine screw 01 (RoHS)
2
26
6100333000010
O-ring for screw 01 (RoHS)
2
27
6300058000010 Aluminum chassis 01 (RoHS)
1
28
7400023010010 PC sheet 01 (RoHS)
1
29
5205004000030 Earpiece jack (RoHS)
1
30
5205005000040 Earpiece jack (RoHS)
1
31
6000852000000 Earpiece jack bracket 00 (RoHS)
1
32
1300004460020 Main board (RoHS)
1
33
7101904020200 Self-tapping screw 00 (RoHS)
9
34
5002220000070 Microphone (RoHS)
1
35
6100345000000 MIC cover 00 (RoHS)
1
36
7400217100000 MIC pad 00 (RoHS)
1
37
7400222000000 Waterproof MIC net 00 (RoHS)
1
38
5001210000030 Speaker (RoHS)
1
39
4210060000100 Lead (RoHS)
1
Page 51
POWER446 Service Manual
49
40
6000700000000 Plug for earpiece jack cover 00 (RoHS)
1
41
6000848000010 Earpiece jack cover 01 (RoHS)
1
42
6000847000000 Light guide 00 (RoHS)
1
43
6100334000000 O-ring for encoder switch 00 (RoHS)
2
44
7207002200200 Nut 00(RoHS)
2
45
6202157000000 Inner lining of volume control knob 00 (RoHS)
1
46
6000846100010 Volume control knob 01 (RoHS)
1
Page 52
POWER446 Service Manual
50
Packing Guide
Page 53
Page 54
Page 55
5
5
4
4
3
3
2
2
1
1
D D
C C
B B
A A
buffer stimulator power AMPVCO
TUNE BPF 1stIF BPFRF MIXERTUNE BPF LNA
1W(BTL)200mVrms-120dBm -103dBm -67dBm
-69dBm
250mVrms-98dBm-108dBm-104dBm-122dBm
LPF
12mVrms
-10dBm
27dBm29dBm22dBm15dBm-8dBm450mVrms 150mVrms -26dBm-45dBm
attenuator
step1to23
3dBm
TX PART
RX PART
AF RF
RF IF AF
47K
VR200
47K
VR200
C402C402
RD07
Q403
RD07
Q403
2
13
AF AMP
TDA2822
AF AMP
TDA2822 16Ω IW16Ω IW
LPFLPF
C112C112
38.85M38.85M
Q500
AT41511
Q500
AT41511
Q401 2SK4988Q401 2SK4988
1
23
Q501
3SK318
Q501
3SK318
3
2
41
IFAmp 1
AF HPF
Volume
MIX2
2ndIF
BPF
IFAmp 2
DET
de-emphasis
23 25 29
44
AF mute
AN29160
IFAmp 1
AF HPF
Volume
MIX2
2ndIF
BPF
IFAmp 2
DET
de-emphasis
23 25 29
44
AF mute
AN29160
5221
Q400 2SC5108Q400 2SC5108
1
23
C405C405
BPFBPF
CC C400C400
SWSW
MICROPHONEMICROPHONE
C141C141
RD01
Q402
RD01
Q402
2
13
C130C130
D500D500
C412C412
Mic Amp
Mic Mute
AF HPF
LMT
SF Amp
AN29160
Mic Amp
Mic Mute
AF HPF
LMT
SF Amp
AN29160
5140
Q101
2SK508NV
Q101
2SK508NV
BPFBPF
Q100
2SK508NV
Q100
2SK508NV
D104D104
Q102Q102
1
23
D400D400 C429C429
Q104Q104
1
23
Page 56
5
5
4
4
3
3
2
2
1
1
D D
C C
B B
A A
VCC_5V
Q611
Q500
1
1
sp Amp
RX-VCO
SF
AMP(TX)
Tone
VOX
D602
U201
Q102
MCU
TUNE BPF
V-SAVE
D503
AFMOD
tone-LPF
X601
DET
power management
D504
U610
Reset
IC
EN
BGR
U605
APC/TUNE
Q103
Q501
RSSI
Mic amp
APC
DATA
VCO
XF1
CTC/CDC
U200
PROCESSER
LPF
U609
5th-LPF
IFAMP2
AF
HPF
CLK
PE
T/R-SW
APC/TUNE
CTC/CDC
5th-HPF
Reset
SW
IF-Amp
To MCU
IC
Q402
MATCH
VREF
De
Emphasis
TX
TUNE BPF
BUFFER
LATCH
U606
1stIF BPF
AF
mute
SAVE
RF MIXER
pre-amplifier
volume
To MCU
LNA
Q403
CDC/CTC
R/TSW
5V
MCU
Q612
mix2
POWERREG
mic mute
RF PA
TX-Vcc
VCC
LIM
(TX)
Q610
TXC
TX-VCO
AUDIO OUT
From MCU
SQ
LPF
D601
/LIGHTING
1/2
32/33
17bitDIV
21bitDIV
1/2
OSCCP
U202
Pre
Emphasis
RX
PLLEN
PLLDATA
PLLCLK
3
TC-610&620 UHF
BLOCK DIAGRAM
AF-AMP
Q502
U430
7.3728M7.3728M
greengreen
---
7.5V
---
7.5V
L101L101
Q6Q6
1
23
Q400Q400
1
23
L102L102
SWSW
1
23
C504C504
16Ω IW16Ω IW
PTTPTT
2
13
Q101Q101
Q104Q104
1
23
38.85MHZ38.85MHZ
L4531uL453
1u
C526C526
C521C521
MON
BAT
MON
BAT
D100D100
D101D101
D507D507
CF300CF300
OUT IN
D104D104
redred
L506L506
Vin
VSS
Vout
L508L508
L502L502
D103D103
Q5Q5
1
23
C505C505
C519C519
D505D505
C506C506
Q100Q100
12.8MHZ12.8MHZ
Q401Q401
1
23
ANTENNAANTENNA
2
13
L604L604
D102D102
mic
MIC
mic
MIC
L501L501
Page 57
5
5
4
4
3
3
2
2
1
1
D D
C C
B B
A A
VCC_5V
VCC_5V
V_BAT
VCC_5V
VCC_5V
V_SAVE
V_SAVE
VCC_5V
VCC_5V
IF_IN
AFMOD
VOXDET
QT_IN
BEEP
DATA
CLK
EN
QT_OUT
W/N
CP
PLL_IN
LD
BUSY
SAVE
VBAT
EXPTT
MIC_EN
TXD
RXD
SPV_C
PLLEN
PLLDATA
PLLCLK
W/N
Model Name:
Prepare:
File No.:
Rev:
Date:
Page:
of
Part Name:
Hytera Communications Co.Ltd.
Check:
Approve:
V01
13
Monday, June 27, 2011
AF&IF&PLL
POWER446(446.00625-446.09375MHz)
Model Name:
Prepare:
File No.:
Rev:
Date:
Page:
of
Part Name:
Hytera Communications Co.Ltd.
Check:
Approve:
V01
13
Monday, June 27, 2011
AF&IF&PLL
POWER446(446.00625-446.09375MHz)
Model Name:
Prepare:
File No.:
Rev:
Date:
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of
Part Name:
Hytera Communications Co.Ltd.
Check:
Approve:
V01
13
Monday, June 27, 2011
AF&IF&PLL
POWER446(446.00625-446.09375MHz)
C6921UC692
1U
R225
150K
R225
150K
R224
18K
R224
18K
D230NCD230
NC
Q202
2SA1832
Q202
2SA1832
1
2 3
R130R13
0
C322
10P
C322
10P
R223
390K
R223
390K
R307
82K
R307
82K
R230
3.3K
R230
3.3K
JTBM450
CD300
JTBM450
CD300
12
R316
180K
R316
180K
C235
1800P
C235
1800P
Q201
2SK1824
Q201
2SK1824
2
31
C340
68P
C340
68P
R216
18K
R216
18K
C327NCC327
NC
C250
1000P
C250
1000P
R3210R321
0
R7100R710
0
C3091UC309
1U
C215
0.022u
C215
0.022u
VR200
68K
VR200
68K
13
2
C234
390P
C234
390P
C330
0.1U
C330
0.1U
D250
EDZ6.8B
D250
EDZ6.8B
C204
1000P
C204
1000P
L304
560NH
L304
560NH
R231
4.7K
R231
4.7K
Q204
DTC114
Q204
DTC114
3
1
2
R322NCR322
NC
C220
68P
C220
68P
R252
68k
R252
68k
C225
0.047u
C225
0.047u
Q656
2SC4738
Q656
2SC4738
R268
10k
R268
10k
R249
4.7
R249
4.7
R314 12KR314 12K
Q302NCQ302
NC
3
1
2
SpeakerSpeaker
+
1
-
2
L306
330NH
L306
330NH
C319NCC319
NC
D200NCD200
NC
R208
100K
R208
100K
R215NCR215
NC
R705
820K
R705
820K
R254
56k
R254
56k
Q655
2SA1832
Q655
2SA1832
C303 100PC303 100P
C304 100PC304 100P
Q105
2SC5108
Q105
2SC5108
C302
2.2U/10V
C302
2.2U/10V
C251
22U
C251
22U
U200 AN29160AAU200 AN29160AA
VMCU
6
VRX
7
VTX
8
VCC1
9
VVCO
10
VIC
11XI12XO13
1/4XO
14
CP
16
GND
15
VSS
17
PLLIN
18LD19ND20
IFIN
21
SAVE
22
MIXO
23
IFREF
24
IF2IN
25
REF
26
RSSI
27
TANK
28
EN
5
DATA
4
CLK
3
VREF
2
VCC
1
FMO29NFIN30ZAP31NFO32LPF33LPO34LPI35LPO236BREF37VOX38BGR39MICI40MICO41GND142MICM43HFI44HFO45HF2I46HF2O47AFM48TONE49MODI50MODO51VOL52SPI53SP+54GND255SP-
56
C214NCC214
NC
R204 470R204 470
R205
47K
R205
47K
R217
1.2M
R217
1.2M
C257
0.1U
C257
0.1U
C268
820P
C268
820P
C219
68P
C219
68P
micX1mic
X1
-
2
+
1
C2711uC271
1u
C3081UC308
1U
R202 100R202 100
C231
0.1U
C231
0.1U
C240
0.1U
C240
0.1U
R2480R248
0
R206 1KR206 1K
R218
30K
R218
30K
R301
10K
R301
10K
C315
0.1U
C315
0.1U
L309NCL309
NC
R2511MR251
1M
R2441KR244
1K
C256
0.1U
C256
0.1U
R2501KR250
1K
R259
10k
R259
10k
C334
100P
C334
100P
C202
0.47U
C202
0.47U
C305 100PC305 100P
R235
2.2K
R235
2.2K
C249
0.1U
C249
0.1U
C223
0.047U
C223
0.047U
C342
470P
C342
470P
RN1 1K*4RN1 1K*4
1
2
3
4 5
6
7
8
C313
0.01U
C313
0.01U
L200
1UH
L200
1UH
C325
0.1U
C325
0.1U
C254
1000P
C254
1000P
C3071UC307
1U
C270
0.012u
C270
0.012u
C278
0.1U
C278
0.1U
R239
18K
R239
18K
C274
0.01U
C274
0.01U
R207
56K
R207
56K
R706
820K
R706
820K
C324
0.1U
C324
0.1U
R257
39k
R257
39k
R302
10K
R302
10K
C316
470p
C316
470p
R3180R318
0
R236
3.3K
R236
3.3K
R210NCR210
NC
R219
56K
R219
56K
C2261UC226
1U
C337 470PC337 470P
L303
330NH
L303
330NH
C341
1000 P
C341
1000 P
C217
0.1U
C217
0.1U
R24710R247
10
U201
TDA2822D
U201
TDA2822D
O1
1
VCC
2
O2
3
GND42IN-
5
2IN+
6
IN+
7
IN-
8
D210
EDZ6.8B
D210
EDZ6.8B
J3 PJ-D3027DJ3 PJ-D3027D
1
5
2
4
3
R229
120K
R229
120K
C255
0.1U
C255
0.1U
R237
47K
R237
47K
C343
56P
C343
56P
C259
0.01U
C259
0.01U
C238
0.012U
C238
0.012U
C252
10U/16V
C252
10U/16V
Q300
DTA114
Q300
DTA114
3 1
2
C323 1000PC323 1000P
C601
470p
C601
470p R2461KR246
1K
R304
47K
R304
47K
C320 1000PC320 1000P
C224
1500P
C224
1500P
VCONT
GND
OUT
VCC
X300
12.8MHz
VCONT
GND
OUT
VCC
X300
12.8MHz
1
2 3
4
5
6
7
8
R200
470
R200
470
C260
220P
C260
220P
R315 12KR315 12K
C326
0.1U
C326
0.1U
C695
4.7U/10V
C695
4.7U/10V
C248
1000P
C248
1000P
C344NCC344
NC
C253
0.1U
C253
0.1U
L300
1UH
L300
1UH
D231NCD231
NC
R3091KR309
1K
D220
EDZ6.8B
D220
EDZ6.8B
R270
39k
R270
39k
C321
10P
C321
10P
C221
68P
C221
68P
C2471uC247
1u
R227
390K
R227
390K
C329
0.1U
C329
0.1U
R258
68k
R258
68k
C339
56P
C339
56P
C269
82P
C269
82PR240
820K
R240
820K
R233
18K
R233
18K
C335
470P
C335
470P
C205
0.022U
C205
0.022U
C272
0.1U
C272
0.1U
C227
0.068u
C227
0.068u
R14NCR14
NC
L2020L202
0
R3080R308
0
C244
5600P
C244
5600P
G1
7.5VG17.5V
1 2
C207
0.018U
C207
0.018U
R228
1.8M
R228
1.8M
L301
1UH
L301
1UH
L308
1UH
L308
1UH
R212
10K
R212
10K
R311
100k
R311
100k
R300
10K
R300
10K
R234
8.2K
R234
8.2K
L307
1UH
L307
1UH
C201
100P
C201
100P
C2301uC230
1u
C275
220P
C275
220P
C696
4.7U/10V
C696
4.7U/10V
R245
47K
R245
47K
C206
100P
C206
100P
J4
MICJACKJ4MICJACK
2
4
3
1
R3170R317
0
Q203
2SK1824
Q203
2SK1824
G
2
D
3
S
1
R306
150K
R306
150K
C243
2200P
C243
2200P
C328NCC328
NC
R312
3.3k
R312
3.3k
R214
22k
R214
22k
R2690R269
0
R220
0.047u
R220
0.047u
D300NCD300
NC
R256
10K
R256
10K
C233
1500P
C233
1500P
L305
3.3UH
L305
3.3UH
C232
0.047U
C232
0.047U
C203
0.22u
C203
0.22u
-+
+-
U431
NJM2904
-+
+-
U431
NJM2904
1
3
425
7
8
6
C3061UC306
1U
C245
22P
C245
22P
C229
10u/16V
C229
10u/16V
C2411UC241
1U
VR300
68K
VR300
68K
13
2
R7040R704
0
C311
0.01U
C311
0.01U
R24110R241
10
R203
4.7K
R203
4.7K
R201
2.2K
R201
2.2K
R303
1.8K
R303
1.8K
R320NCR320
NC
Q205
UFMMT717
Q205
UFMMT717
C280
47P
C280
47P
R213
10k
R213
10k
C317NCC317
NC
R305
47K
R305
47K
C273 1uC273 1u
C2181UC218
1U
C332
0.1U
C332
0.1U
C2220C222
0
R313 12KR313 12K
U202
GP214D
U202
GP214D
FIN1
1
VCC
2
CP1
3
GND
4
LD
5
CK
6
DATA
7
STB
8
BO9XOUT10XIN11SW12GND13CP214VCC15FIN2
16
R232
820K
R232
820K
R242
12K
R242
12K
C338NCC338
NC
R708
100K
R708
100K
C312
15U/6.3V
C312
15U/6.3V
C2461UC246
1U
C200
4.7u/10V
C200
4.7u/10V
R707
100K
R707
100K
SW3
VOL
SW3
VOL
1
2
3
4
5
R221
22K
R221
22K
C3011UC301
1U
R226
36K
R226
36K
D651
RB706F-40
D651
RB706F-40
1
2
3
C216 1UC216 1U
R255
4.7
R255
4.7
R24310R243
10
R310 1kR310 1k
R222
12K
R222
12K
R253
82k
R253
82k
C2421UC242
1U
C212
0.1U
C212
0.1U
C258
2200P
C258
2200P
C300
0.01U
C300
0.01U
C267
3900P
C267
3900P
C333
0.1U
C333
0.1U
C237
0.01U
C237
0.01U
R319NCR319
NC
C331
0.1U
C331
0.1U
R709
220
R709
220
R2111MR211
1M
C228
390P
C228
390P
CF300
CFWKA450
CF300
CFWKA450
C239
6800p
C239
6800p
C236
0.056U
C236
0.056U R238
180K
R238
180K
C318
4.7U
C318
4.7U
C2131UC213
1U
C3101UC310
1U
Page 58
5
5
4
4
3
3
2
2
1
1
D D
C C
B B
A A
1
V_SAVETX_VCC
VCC_5V
RX_VCC
V_BAT
VCC_5V
VCC_5V
VCC_5VV_BAT
V_BAT
VCC_5V
BEEP
CLK
SAVE
QT_OUT
DATA
EN
BUSY
VOXDET
QT_IN
LD
TX_C
TXD
TX_C
RXD
APC/TU
MIC_EN
VBAT
EXPTT
T/R
W/N
SPV_C
PLLDATA
PLLEN
PLLCLK
ATIS
Model Name:
Prepare:
File No.:
Rev:
Date:
Page:
of
Part Name:
Hytera Communications Co.Ltd.
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Monday, June 27, 2011
MCU&POWER
POWER446(446.00625-446.09375MHz)
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MCU&POWER
POWER446(446.00625-446.09375MHz)
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MCU&POWER
POWER446(446.00625-446.09375MHz)
R655
100K
R655
100K
C675
470P
C675
470P
R657 1KR657 1K
C649
470P
C649
470P
D610
1SR154
D610
1SR154
1 2
C686
1000p
C686
1000p
R692
47K
R692
47K
Q654
2SA1362
Q654
2SA1362
1
2 3
C602
470p
C602
470p
R659
2.7K
R659
2.7K
C644
1000P
C644
1000P
C663
0.022U
C663
0.022U
R6441KR644
1K
RXDRXD
C670
1000P
C670
1000P
S1S1
Q611
UFMMT717
Q611
UFMMT717
1
23
Q610
UFMMT717
Q610
UFMMT717
1
2 3
C683
0.1u
C683
0.1u
C676
470P
C676
470P
C665
2.2U/10V
C665
2.2U/10V
R694 1KR694 1K
C673
22u/10V
C673
22u/10V
R663
2.7K
R663
2.7K
RESETRESET
C648
470P
C648
470P
C678 1UC678 1U
R702
47K
R702
47K
PTTPTT
2 1AA2 1
R6431KR643
1K
R637
47K
R637
47K
R664
3.3K
R664
3.3KC609
1000P
C609
1000P
R634 1KR634 1K
R632 1KR632 1K
L604
600sg
L604
600sg
·
···
Q609
UMG3N
·
···
Q609
UMG3N
C6918PC691
8P
R668 47KR668 47K
R642
470K
R642
470K
C643
2.2U/10V
C643
2.2U/10V
C664
2.2U/10V
C664
2.2U/10V
R699
4.7K
R699
4.7K
R656
330
R656
330
C6458PC645
8P
R698
100
R698
100C666
1000P
C666
1000P
R661
820
R661
820
R647 100KR647 100K
R701
330K
R701
330K
C685
1000P
C685
1000P
C662
0.01U
C662
0.01U
C642
0.1u
C642
0.1u
C681
0.01u
C681
0.01u
·
···
Q613
UMG3N
·
···
Q613
UMG3N
C689
1000P
C689
1000P
BB
2 1
C679
3900P
C679
3900PC656
0.01U
C656
0.01U
C684
1000p
C684
1000p
R697
100
R697
100
C682
47u/16V
C682
47u/16V
C658
1000p
C658
1000p
C661
1000p
C661
1000p
R636
47K
R636
47K
R648
470K
R648
470K
R641 47KR641 47K
U605
MB95F108AMWPFV-GE1
U605
MB95F108AMWPFV-GE1
AVCC1AVR2PTT3A4EXPTT5B6EC37EC28EC19EC010T/R11NC12烧录13X014X115VSS
16
VCC
17
C
18
32kI
19
32kO
20
ResT
21
R1
22
R2
23
R3
24
R4
25
LE
26
DATA
27
CLK
28
LD
29
RxD
30
BL
32
TxD
31
33
TTS_IN
M_EN
34
QT_OUT
35
TTS_OUT
36
BP
37
W/N
38
NC
39
SCL
40
SDA
41
AP/TU
42
TX_C
43
PCLK
44
PDATA
45
PEN
46
CS47DA
48
RD
49
WR
50
self
51
SPCONT
52
PCONT
53
RLED
54
GLED
55
NC
56
QT_IN
58
NC
57
BUSY
59
BAT-DET
60
NC
61
VOXDET
62
NC
63
AVSS
64
C641
1000P
C641
1000P
L607 0.22UL607 0.22U
R690
47K
R690
47K
D601
GREEN
D601
GREEN
12
U606
XC6201
U606
XC6201
Vout
VSS
Vin
R646 100KR646 100K
R696 10kR696 10k
R669
100K
R669
100K
12
C680
1000p
C680
1000p
R671NCR671
NC
C660
470P
C660
470P
X601 7.3728MX601 7.3728MR645 100KR645 100K
R639
3.3K
R639
3.3K
Q612
UPA572T
Q612
UPA572T
C669
100p
C669
100p
R693
47K
R693
47K
R689
330
R689
330
C659
470P
C659
470P
VR601
68K
VR601
68K
1 3
2
SELFSELF
C6901UC690
1U
U610
R3111N451C
U610
R3111N451C
1
5
3
4
2
Q615
DTC114
Q615
DTC114
2
31
BLBL
C671
470P
C671
470P
R6491KR649
1K
R638
47K
R638
47K
R667 1MR667 1M
R660 100R660 100
C6461nC646
1n
R700
4.7K
R700
4.7K
C1 0.1UC1 0.1U
R631 1KR631 1K
U609
AT24C64
U609
AT24C64
1
1
2
2
3
3
44DAT
5
CLK
6
7
7
8
8
C677
0.01U
C677
0.01U
C6571nC657
1n
TXDTXD
R633 1KR633 1K
R6701KR670
1K
C687
0.1U
C687
0.1U
SW2
SW channel
SW2
SW channel
1
2
34
5
6
R695 10kR695 10k
Q614
DTC114
Q614
DTC114
2
31
C667
1000P
C667
1000P
D607
BAS16
D607
BAS16
R658 1KR658 1K
MODEMODE
D602
RED
D602
RED
12
Page 59
5
5
4
4
3
3
2
2
1
1
D D
C C
B B
A A
V_BATTX_VCC
V_SAVE
V_SAVE
V_SAVE
RX_VCC
RX_VCC
QT_OUT
AFMOD
APC/TU
T/R
PLL_IN
CP
IF_IN
ATIS
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VCO&RF
POWER446(446.00625-446.09375MHz)
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VCO&RF
POWER446(446.00625-446.09375MHz)
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VCO&RF
POWER446(446.00625-446.09375MHz)
R103
2.2K
R103
2.2K
C443NCC443
NC
C5076PC507
6P
R5001MR500
1M
R106
150
R106
150
C414
1000P
C414
1000P
L100
601s
L100
601s
L4068TL406
8T
D500
BA277
D500
BA277
1 2
R101
3.3K
R101
3.3K
C544
12P
C544
12P
R502
100K
R502
100K
TC100
10p
TC100
10p
C652
15U/10V
C652
15U/10V
R518
270
R518
270
C4227PC422
7P
R438
8.2K
R438
8.2K
C1365PC136
5P
Q100
2SK508NV
Q100
2SK508NV
231
C423
10P
C423
10P
C454
1.5P
C454
1.5P
C5185PC518
5P
C511
0.1u
C511
0.1u
C5324PC532
4P
R654 100R654 100
R404 1.5KR404 1.5K
C142
470P
C142
470P
Q103
2SC5108
Q103
2SC5108
C439
1000P
C439
1000P
L503
18n
L503
18n
C543
10P
C543
10P
C4253PC425
3P
R439
150k
R439
150k
C1245PC124
5P
R100
560
R100
560
C5012PC501
2P
R108 1KR108 1K
C520
12P
C520
12P
C121
15P
C121
15P
C261
5600P
C261
5600P
C1332PC133
2P
L402
601s
L402
601s
R521
1nH
R521
1nH
C4535PC453
5P
Q430
DTC114EE
Q430
DTC114EE
2
31
L511
33n
L511
33n
ANTENNAANTENNA
L105
3.3U
L105
3.3U
L403
1uH
L403
1uH
Q653
2SJ243
Q653
2SJ243
2
3 1
L101 3.3UL101 3.3U
C1251PC125
1P
D507
HVC358B
D507
HVC358B
2 1
D505
HVC358B
D505
HVC358B
2 1
L5085TL508
5T
C408
1000P
C408
1000P
D401
HVU131
D401
HVU131
1 2
C134
470P
C134
470P
R436
10K
R436
10K
C406
470P
C406
470P
L4544TL454
4T
R503
270
R503
270
L4504TL450
4T
C460NCC460
NCC400
0.5P
C400
0.5P
C5164PC516
4P
D502
BA277
D502
BA277
12
C126
470P
C126
470P
C513
180P
C513
180P
R422 0.39R422 0.39
C654
470P
C654
470P
C402
470P
C402
470P
C407 15PC407 15P
C537
0.1u
C537
0.1u
C548
100P
C548
100P
C1416PC141
6P
C403
470P
C403
470P
C276NCC276
NC
XF1
MFT38P
XF1
MFT38P
IN
1
GND2GND
3
Out
4
Cap5Cap
6
Q101
2SK508NV
Q101
2SK508NV
231
D430
EDZ6.8B
D430
EDZ6.8B
R507
100K
R507
100K
R273NCR273
NC
C549
0.1U
C549
0.1U
C545
100P
C545
100P
C539
470P
C539
470P
C1116PC111
6P
C5288PC528
8P
L110
220n
L110
220n
D102
HVC350B
D102
HVC350B
21
C5036PC503
6P
C421
12P
C421
12P
Q502
2SC5108
Q502
2SC5108
2 3
1
L4514TL451
4T
R433
150K
R433
150K
C4273PC427
3P
C104
0.33U
C104
0.33U
C106
1000P
C106
1000P
C446 1uC446 1u
L115
33N
L115
33N
R530
10K
R530
10K
C139
470P
C139
470P
Q501
3SK318
Q501
3SK318
3
2
41
R262 100KR262 100K
R517
270
R517
270
R104
10K
R104
10K
C442
470P
C442
470P
C140
470P
C140
470P
R265NCR265
NC
R515
680
R515
680
TP500TPTP500
TP
C529
0.01u
C529
0.01u
R417
33k
R417
33k
R10556R105
56
C131
470P
C131
470P
C262
4.7u/10V
C262
4.7u/10V
R111
3.3K
R111
3.3K
R112
10K
R112
10K
L109
3.3U
L109
3.3U
C509
1000P
C509
1000P
C438NCC438
NC
D650
BAS16
D650
BAS16
12
R512
33k
R512
33k
C1206PC120
6P
D503
HVC358B
D503
HVC358B
2 1
C508
5.6P
C508
5.6P
C4284PC428
4P
L4531uL453
1u
C143
0.1u
C143
0.1u
R653 100R653 100 R432 150KR432 150K
R266
100K
R266
100K
L504
100nH
L504
100nH
R421 0.39R421 0.39
R519
560k
R519
560k
TC101
10p
TC101
10p
L112
47n
L112
47n
C515
0.1u
C515
0.1u
R651
4.7K
R651
4.7K
C650
0.1U
C650
0.1U
C431
10u/16V
C431
10u/16V
D501
BA277
D501
BA277
12
R4430R443
0
L505
8.2nH
L505
8.2nH
C4572PC457
2P
R403
330
R403
330
Q657
2SK1824
Q657
2SK1824
2
31
C445470PC445470P
Q650
2SC5343
Q650
2SC5343
23
1
L5101uL510
1u
C100
0.22U
C100
0.22U
R509
100K
R509
100K
R416
15K
R416
15K
L5015TL501
5T
C522
10P
C522
10P
L650
601s
L650
601s
R405
680
R405
680
R40810R408
10
R652
100K
R652
100K
R513
47k
R513
47k
C116
0.3P
C116
0.3P
C1236PC123
6P
C4613pC461
3p
-+
+-
U430
NJM2904
-+
+-
U430
NJM2904
1
3
425
7
8
6
L401
22N
L401
22N
L103
3.3U
L103
3.3U
C433
0.1U
C433
0.1U
C401
470P
C401
470P
C415
0.1U
C415
0.1U
R441 4.7KR441 4.7K
L409NCL409
NC
L509
330n
L509
330n
C102
0.33U
C102
0.33U
R520
2.7k
R520
2.7k
C103 NCC103 NC
R109
120K
R109
120K
C506
12P
C506
12PC5612PC561
2P
C418
0.1U
C418
0.1U
C512
470P
C512
470P
C265
1000P
C265
1000P
R420 0.39R420 0.39
C533
1.5P
C533
1.5P
L113
18n
L113
18n
C1153PC115
3P R434
150K
R434
150K
L4524TL452
4T
Q500
AT-41511
Q500
AT-41511
1
2
4
3
C424
0.5P
C424
0.5P
Q400
2SC5108
Q400
2SC5108
2 3
1
C514
100P
C514
100P
R514
33k
R514
33k
L5025TL502
5T
C416
0.01U
C416
0.01U
C502
5.6P
C502
5.6P
R440
820k
R440
820k
R107 180KR107 180K
VR260
68K
VR260
68K
13
2
C546
0.01U
C546
0.01U
C456
1.5P
C456
1.5P
C444NCC444
NC
C117
470P
C117
470P
R540
100
R540
100
R115
3.3K
R115
3.3K
Q652 UMC4Q652 UMC4
D104
BB179
D104
BB179
2 1
R431
150K
R431
150K
R400
10K
R400
10K
Q104
2SC5108
Q104
2SC5108
D103
HVC350B
D103
HVC350B
2 1
C4591PC459
1P
C4411uC441
1u
C540
0.01u
C540
0.01u
C432
470P
C432
470P
D101
HVC350B
D101
HVC350B
2 1
C510
20P
C510
20P
R430
150K
R430
150K
Q401
2SC4988
Q401
2SC4988
3 2
1
R260
100K
R260
100K
R511
56k
R511
56k
R4371MR437
1M
R504
12k
R504
12k
C135
10p
C135
10p C412
270P
C412
270P
C4513PC451
3P
R51047R510
47
C409
0.1U
C409
0.1U
C1144PC114
4P
R412
4.7k
R412
4.7k
C1109PC110
9P
C127
0.1U
C127
0.1U
C417
470P
C417
470P
C434
2.2u/10V
C434
2.2u/10V
C653
1000P
C653
1000P
C436
470P
C436
470P
C538
470p
C538
470p
C101
4.7U/16V
C101
4.7U/16V
C536
470P
C536
470P
Q403
RD07
Q403
RD07
C5266PC526
6P
R411
56k
R411
56k
C429
27P
C429
27P
R40610R406
10
R407
330
R407
330
D504
HVC358B
D504
HVC358B
2 1
C542
0.01U
C542
0.01U
R113
3.3K
R113
3.3K
L404
221SG
L404
221SG
C426
0.5P
C426
0.5P
C263NCC263
NC
L408
82nH
L408
82nH
L530 22nHL530 22nH
C541
10p
C541
10p
C5196PC519
6P
R41047R410
47
C105
1000P
C105
1000P
L5004TL500
4T
R40122R401
22
C521
2.7P
C521
2.7P
L114
22n
L114
22n
R1021KR102
1K
C420NCC420
NC
L513NCL513
NC
C410
470P
C410
470P
C4401uC440
1u
C112
0.5P
C112
0.5P
C437
470P
C437
470P
R114
330
R114
330
C1135PC113
5P
L405
10N
L405
10N
Q431
DTA114YE
Q431
DTA114YE
L111
39N
L111
39N
R505
8.2k
R505
8.2k
L104
23N
L104
23N
L102 3.3UL102 3.3U
C4553PC455
3P
C4623pC462
3p
R267 47kR267 47k
C266
100P
C266
100P
C651
1000P
C651
1000P
R419
150
R419
150
Q102
2SC5108
Q102
2SC5108
R41547R415
47
D100
HVC350B
D100
HVC350B
21
C118
0.1U
C118
0.1U
C5053PC505
3P
R516
270
R516
270
C5352PC535
2P
R4130R413
0
C4056PC405
6P
Q402
RD01
Q402
RD01
C264
1U/16V
C264
1U/16V
C534NCC534
NC
R435
150K
R435
150K
C450
100P
C450
100P
C458
1000p
C458
1000p
R442 4.7KR442 4.7K
C530
470P
C530
470P
R116 10R116 10
R1101KR110
1K
L512
27nH
L512
27nH
C132
10P
C132
10P
R501
100K
R501
100K
R263
3.3K
R263
3.3K
C4521PC452
1P
L407
600s
L407
600s
C547
0.01U
C547
0.01U
C5003PC500
3P
C435
10P
C435
10P
C1306PC130
6P
C411
39P
C411
39P
L107
27N
L107
27N
R274NCR274
NC
L5065TL506
5T
R275NCR275
NC
R261
10k
R261
10k
C277
0.01u
C277
0.01u
L400
22N
L400
22N
R264
82K
R264
82K
C1225PC122
5P
C5316PC531
6P
R6501KR650
1K
C419
0.01U
C419
0.01U
D400
BA277
D400
BA277
12
R506
1.8k
R506
1.8k
C430
470P
C430
470P
C527
1000p
C527
1000p
L108
3.3U
L108
3.3U
C5603PC560
3P
C517NCC517
NC
C1385PC138
5P
L106
3.3U
L106
3.3U
C655
0.1U
C655
0.1U
TP100TPTP100
TP
R4091KR409
1K
D508
HSM88
D508
HSM88
C107
100P
C107
100P
C404
470P
C404
470P
R402
47K
R402
47KC1373PC137
3P
Page 60
POWER446 Service Manual
58
Specifications
General
Frequency Range 446.00625-446.09375MHz
Channel Capacity 16
Channel Spacing 12.5KHz
Operating Voltage 7.4V DC
Battery 2000mAh Li-Ion battery
Battery Life (5-5-90 Duty Cycle) ≥25H (2000mAh)
Operating Temperature
-25℃～+65℃
Frequency Stability ±2.5ppm
Receiver
Sensitivity ≤ 0.282uV
Adjacent Channel Selectivity ≥60dB
Intermodulation ≥60dB
Spurious Response Rejection ≥70dB
Rated Audio Power Output 800mW
Rated Audio Distortion
≤5%（800mW）
Transmitter
RF Power Output
＜0.5W
Spurious and Harmonics
-36dBm ( frequency＜1GHz) -30dBm (frequency＞1GHz)
Modulation Limiting ≤2.5KHz
Modulation Distortion ≤5%
Note: All Specifications are tested according to TIA/EIA-603, and subject to change without notice due to continuous
development.
Page 61
8130044600200
http://www.hytera.com
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