Hytera PD505 User manual

PORTABLE

Preface
This manual describes the information related to the product repair. It is intended for use by qualified
technicians only. To repair the product properly, please read this manual carefully before repairing.
This manual is applicable to the following product:
PD50X Digital Portable Radio (X may represent 2, 5, 6 or 8)

Copyright Information
Hytera 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.
The AMBE+2TM voice coding technology embodied in this product is protected by intellectual property
rights including patent rights, copyrights and trade secrets of Digital Voice Systems, Inc. This voice
coding technology is licensed solely for use within this product. The user of this technology is explicitly
prohibited from attempting to decompile, reverse engineer, or disassemble the Object Code or in any
other way convert the Object Code into a human-readable format.
U.S. Patent No: #6,912,495 B2, #6,199,037 B1, #5,870,405, #5,826,222, #5,754,974, #5,701,390,
#5,715,365, #5,649,050, #5,630,011, #5,581,656, #5,517,511, #5,491,772, #5,247,579, #5,226,084 and
#5,195,166.
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.
We do not guarantee, for any particular purpose, the accuracy, validity, timeliness, legitimacy or
completeness of the Third Party products and contents involved in this manual.
If you have any suggestions or would like to learn more details, please visit our website at:
http://www.hytera.com.

Documentation Information
Conventions
Instructional Conventions
Icon Description
Tip Indicates information that can help you make better use of your product.
Note Indicates references that can further describe the related topics.
Caution Indicates situations that could cause data loss or equipment damage.
Warning Indicates situations that could cause minor personal injury.
Danger Indicates situations that could cause major personal injury or even death.
Notational Conventions
Convention Description
“ ”
The quotation marks enclose the name of a software interface element. For
example, click “OK”.
Bold
The text in boldface denotes the name of a hardware button. For example, press the
PTT key.
->
The symbol directs you to access a multi-level menu. For example, to select “New”
from the “File” menu, we will describe it as follows: “File -> New”.
Revision History
Version Release Date Description
R5.6 Feb 20, 2014
Initial Release. This manual includes the information of
these frequency bands:
VHF
UHF1

VHF (136-174 MHz)

VHF (136-174 MHz)
Contents
i
Contents
1. Product Controls .................................................................................................................................. 1
2. Disassembly and Assembly................................................................................................................ 2
3. Exploded View and Packaging Guide................................................................................................ 5
3.1 Exploded View.................................................................................................................................. 5
3.2 Packaging Guide .............................................................................................................................. 7
4. Specifications ....................................................................................................................................... 8
4.1 Specifications.................................................................................................................................... 8
5. Circuit Description ............................................................................................................................. 10
5.1 Baseband Section........................................................................................................................... 10
5.1.1 Power Supply Module .......................................................................................................... 10
5.1.2 Control Module ......................................................................................................................11
5.1.3 Audio Module........................................................................................................................ 18
5.2 RF Section ...................................................................................................................................... 19
5.2.1 Transmitter Circuit ................................................................................................................ 19
5.2.2 Receiver Circuit .................................................................................................................... 20
5.2.3 FGU ...................................................................................................................................... 22
6. Troubleshooting Flow Chart ............................................................................................................. 24
6.1 Control Circuit ................................................................................................................................. 24
6.2 Receiver Circuit .............................................................................................................................. 26
6.3 Transmitter Circuit .......................................................................................................................... 27
6.4 FGU ................................................................................................................................................ 30
7. Interface Definition............................................................................................................................. 32
7.1 J801 and J802: Double-Pin Interface for Earpiece, Programming and Downloading ................... 32
8. Tuning Description............................................................................................................................. 33
8.1 Required Test Instruments ............................................................................................................. 33
8.2 Tuning Procedures ......................................................................................................................... 33
8.2.1 Tuning a Radio ..................................................................................................................... 33
8.2.2 Test a Radio.......................................................................................................................... 36
9. PCB View............................................................................................................................................. 37
10. Block Diagram .................................................................................................................................. 39
11. Schematic Diagram.......................................................................................................................... 43
12. Part List ............................................................................................................................................. 55

VHF (136-174 MHz)
Product Controls
1
1. Product Controls
No. Part Name No. Part Name
1 PTT (Push-to-Talk) Key 7 Accessory connector
2 SK1 (Side Key 1) 8 Microphone
3 Channel Selector Knob 9 Battery Latch
4 Speaker 10 Antenna
5 LED Indicator 11 Belt Clip
6 Power On-Off/Volume Control Knob 12 Battery

VHF (136-174 MHz)
Disassembly and Assembly
2
2. Disassembly and Assembly
This section is designed to introduce the way to disassemble the radio. To assemble the radio, do vice
versa.
Caution
Please position the waterproof ring properly during reassembly.
After reassembly, please check the waterproof performance of the radio using the waterproof test
instrument specified by the Company.
Step 1 Remove the battery.
Step 2 Detach the antenna, and disassemble the Channel Selector Knob and Power
On-Off/Volume Control Knob.
Step 3 Disassemble the nuts for securing the antenna, Channel Selector Knob and Power
On-Off/Volume Control Knob.

VHF (136-174 MHz)
Disassembly and Assembly
3
Step 4 Loosen the two screws on the bottom of the aluminum chassis.
Step 5 Remove the aluminum chassis along with the main board.
Step 6 Loosen the seven screws on the main board.

VHF (136-174 MHz)
Disassembly and Assembly
4
Step 7 Desolder the soldering joint of the antenna and remove the main board.

VHF (136-174 MHz)
Exploded View and Packaging Guide
5
3. Exploded View and Packaging Guide
3.1 Exploded View
Parts list:
No.
Part No.
Description
Qty.
No.
Part No.
Description
Qty.
1
6001978000000
Accessory connector cover
1
21
4400100036000
SMA RF connector
1
2
6001881100000
Front case
1
22
6001882000000
Rear cover
1
3 6100892100000
PTT and programmable key
silicone rubber cushion
1 23 7103006004000 Machine screw 2
4
6001883000000
PTT key plastic cover
1
24
7102506002100
Machine screw
2
5
6000787000000
PTT key cover
1
25
6100527100000
Waterproof ring for screw
1
6
7400601000000
Speaker felt
1
26
6100890100000
Main waterproof ring
1
7 6100891100000
Transparent light guide high
tensile silicone rubber
1 27 6300223000000 Aluminum chassis 1
8
6201905000000
Speaker fixing sheet
1
28
7500272000000
Heat sink pad
1
9 7400633000000 Speaker supporting PC sheet 1 29 6100505000010
Waterproof ring for battery
connector
1
10
4323020000020
Volume switch
1
30
5205005000040
Earpiece Connector
1
11
7206002500210
Nut for volume switch
1
31
5205004000030
Earpiece Connector
1
12
6201739000000
Inner lining of knob
2
32
/
Main board
1
13
6001069000010
Volume control knob
1
33
7101904020200
Self-tapping Screw
8
14
4304030000010
Gray code rotary switch
1
34
5002220000070
Microphone
1
15
6001068000010
Channel selector knob
1
35
6100345000000
MIC cover
1
16 7207002201000
Switch nut for hannel selector
knob
1 36 5001210000170 Speaker 1
17
6100334000000
O-RING for switch
2
37
7400329000000
MIC pad
1
18 6100957100000
Waterproof ring for antenna
connector
1 38 7400141000000 MIC felt 1
19
7102504000300
Machine screw
2
39
7500447000000
Sound-absorption sponge
1
20
7209002501000
Antenna nut
1
/
/
/
/

VHF (136-174 MHz)
Exploded View and Packaging Guide
6
Note
Parts that are not marked with Part Number may vary with the frequency band.

VHF (136-174 MHz)
Exploded View and Packaging Guide
7
3.2 Packaging Guide

VHF (136-174 MHz)
Specifications
8
4. Specifications
4.1 Specifications
General
Frequency Range 136 MHz-174 MHz
Channel Capacity 32
Channel Spacing 25 KHz/20 KHz/12.5 KHz
Operating Voltage
Rated voltage: 7.4 V
Extreme voltage: 6.2–8.4 V
Battery 1500 mAh Li-Ion battery
Battery Life (5-5-90 Duty Cycle,
High TX Power)
High-capacity 2000 mAh Li-Ion
Battery
Analog: 11 hours
Digital: 15 hours
Operating Temperature -30℃to +60℃
Dimension (H×W×D)
(with standard battey, without
antenna)
117×55×28 mm
Weight (with antenna &
standard battey) About 280 g
Frequency Stability ±1.5 ppm
Receiver
Sensitivity
Analog
0.3 μV (12 dB SINAD)
0.22 μV (Typical) (12 dB SINAD)
0.4 μV (20 dB SINAD)
Digital: 0.3 μV/BER5%
Adjacent Channel Selectivity
TIA-603: 60 dB@12.5 kHz/70 dB@20&25 kHz
ETSI: 60 dB@12.5 kHz/70 dB@20&25 kHz
Intermodulation
TIA-603: 70 dB@12.5/20/25 kHz
ETSI: 65 dB@12.5/20/25 kHz
Spurious Response Rejection
TIA-603: 70 dB@12.5/20/25 kHz
ETSI: 70 dB@12.5/20/25 kHz

VHF (136-174 MHz)
Specifications
9
All Specifications are tested according to applicable standards, and subject to change without notice due
to continuous development.
Blocking 84 dB
Rated Audio Power Output 0.5 W (16 Ω load)
Rated Audio Distortion ≤3%
Transmitter
Power Output 5 W/1 W
Conducted/Radiated Emission
-36 dBm<1 GHz
-30 dBm>1 GHz
Modulation Limiting
±2.5 [email protected] kHz
±4.0 kHz@20 kHz
±5.0 kHz@25 kHz
FM Noise
40 [email protected] kHz
43 dB@20 KHz
45 dB@25 kHz
Audio Distortion ≤3%

VHF (136-174 MHz)
Circuit Description
10
5. Circuit Description
5.1 Baseband Section
5.1.1 Power Supply Module
Diagram of Power Control
RF PA7.4V
RD07MUS2B
AF PA7.4V
TDA2822D
VCO
RX
TX
VCCcp_ main Charge pump supply2.7V-5V
VCCdigital: Digital supply,2.7V-3V-3.3V
VCCxtal: Crystal oscillator ECL/CML,2.7V-3V-3.3V;
VCCecl/cml: ECL/ CML,2.7V-3V-3.3V; PLL(SKY72310)
DVDD4.5V-5V-5.5V(5 V Supply)2.7V-3V-3.3V(3 Supply)
No load, run clk:: Slow1.4mA/ Fast3.5mA(5V ) Slow1mA/ Fast3 mA(3V)
AVDD4.5V-5V-5.5V(5 V Supply) 2.7V-3V-3.3V( 3 Supply)
Vref
DAC( TLV5604)
Positive supply for ADC back end
Positive supply for ADC front end
Positive supply for LNA and MIXER
Positive supply for CLK synthesizer
Positive supply for LO synthesizer charge pump
Analog Voltage
2.7V-3V-3.6V
VDDF
VDDA
VDDI
VDDQ
VDDP
Charge Pump Voltage
2.7V-5V-5.5V
IF( AD9864)
Positive supply for LO synthesizer
Positive supply for Internal Digital
Positive supply for Clk synthesizer
Positive supply for digital interface
Interface Voltage
1.8V-3.6V
VDDL
VDDD
VDDC
VDDH
Digital Voltage
2.7V-3V-3.6V
Digital Core
I/O
SAR ADC reference voltage
Battery monitor input
DVDD
IOVDD
VREF
VBAT
Codec(TLV320AIC29 IRGZR)
Audio ADC\DAC\Reference\ SAR ADC
PLL Analog
Batery power supply
Headphone driver
3V-3.3V-3.6V
AVDD1
AVDD2
BVDD
DRVDD
1.65V-1.8V-1.95V
2V- 3.6V(MCLK=100M)
2V- 3.6V(MCLK=50M)
1.1V-2.5 V External
2.3V-2.5V-2.7V Pro=2.5V 1.25 V Pro=1. 25V
0.5V-6V
3V-3.3V-3.6V
3V-4.2V
3V-3.3V-3.6V
VDDQ1.7V-1.8V-1.95 V Operation Mode
SDRAM
VDDQ2.7V-3.1V( Read while write)
Nor Flash+ PsRAM
VCC
LED\PTT\SW_ CHANEL\ ACCEL
DVDD1
DVDD3
DVDD5
DVDD6
DVDD7
DVDD8
DVDD9
DVDDRTC
DVDD4
Low voltage range
(1.65V-1.8V-1. 95V)
High voltage range
(2.5V-2.75 Vor3.3V-3. 6V)
GPIO, MPUIO, Microwire I/ O buffers
RTC I/O
DDR/ SDRAM interface I/ O buffers
Internal USB transceiverBUFFERS
RESET OMAP5912ZZG
core logic and low voltage sections of I/O
core logic
MPU subsystem logic and memory
DSP subsystem logic and memory
Low power standby
(1.05V-1.1V-1.21V)
Active mode
(1.525V-1.6V-1.65V)
CVDD
CVDD1
CVDD2
CVDD3
1.525V-1.6V-1.65V
Flash I/F I/ O buffers
MMC/SD 1I/F I/ O buffers
McBSP3, MCSI1, UART, USB1 I/ O buffers
Camera I/ F and ETM I/ O buffers
MCSI2 and McBSP2 peripheral I/ O buffers
Peripheral I/ O buffers
Use Transceiver
3V-3.3V-3.6V
Not use transceiver
1.65V-1.8V-1.95V
CVDDRTC
CVDDA
CVDDDLL 1.525V-1.6V-1.65V
RTC core logic
APLL provide48 MHz to peripherals
( DDR) SDRAM timing
DVDD2
U2013
ADP2370ACPZ-R7
U2014
ADP2370ACPZ-R7
U302
RP102N331B
U301
RP102N331B
U303
RP102N331B
U309
RP102N331B
U305
RP102N181D
U304
XC6204F 502PR
U306
XC6204F502PR
3V6D
3V3A
3V3A_RX
3V3A_FGU
3V3D
1V8D
3V3A_RX_RF
5VA_FGU
5VA_TX
1V3D
Main
BATT
7.4V
VBAT
RESET IC
Power On/Off
DAN222
Switching Diode
SW+=SW-
/Pwr_Hold
MOS
Pwr_Key_Det=SW- Pwr_Key_Det
SW-
Pwr_Hold
SW+
The radio-on signal (SW+) satisfies the equation: SW+=SW- | Pwr_Hold. When the Power

VHF (136-174 MHz)
Circuit Description
11
On-Off/Volume Control knob is on, SW- and SW+ are at high level, and the radio powers up. After
power-on, Pwr_Hold goes to high level, and Pwr_Key_Det goes to low level.
During power-off, SW- is at low level, while Pwr_Key_Det is at high level. The system detects power-off
procedure via Pwr_Key_Det and implements the power-off procedure. Then Pwr_Hold and SW+ go to
low level, and the power is cut off.
Power Protection
Power protection includes over-current, reverse-voltage and ESD protection.
Power Consumption Control
OMAP can control and configure the power supply and working mode of the peripheral modules (RF
section and baseband section) via the I/O interface and serial bus, so as to reduce power consumption.
5.1.2 Control Module
OMAP5912 Dual-core Processor
The radio uses the dual-core processor OMAP5912, which is mainly composed of ARM926EJ-S and
TMS320C55xx. ARM926EJ-S is the main controller, while TMS320C55xx is used for
modulation/demodulation and voice encoding/decoding.

VHF (136-174 MHz)
Circuit Description
12

VHF (136-174 MHz)
Circuit Description
13
Audio Codec
TLV320AIC29
TX OMAP5912
E
M
I
F
S
E
M
I
F
F
CLK
FLASH
Mobile SDRAM
32MB
datax16
datax16
DSP
TMS320C55x
MPU
ARM926EJ-S
SPI
McBSP2
McBSP1
KEY
IF
SPI
IIS
19.2MHz
TCXO
GPIOs
JTAG
Mic
preamp
Audio
preamp
PWM0/PWT
uWire
BCLK
19.2MHz
McBSP3
McBSP2 TX
MCSI1
GPIO
CS0
CS3
UART1
To PLL
TX DAC
TLV5614
CS1
McBSP1
CS0
MCLK
BUZZ_IN
USB
IF
APC
Final_bias
MOD
TX_RF_CS
32.768KHz
XTAL
UART3
UART2
I2C
IF-RX
AD9864
PLL
SKY72310
To
OMAP5912
To AD9864
RX-Unit
TX、RX、
CTRL
J801、J802
Audio PA
TDA2822D
MIC
SPK
KEY USB
External Memory
OMAP5912 provides two types of external memory interfaces: external memory interface slow (EMIFS)
and external memory interface fast (EMIFF).

VHF (136-174 MHz)
Circuit Description
14
OMAP5912
SDRAM FLASH
SDRAM.BA1
SDRAM.BA0
SDRAM.CAS#
SDRAM.CS#
SDRAM.RAS#
SDRAM.DQML
SDRAM.DQMU
SDRAM.WE#
SDRAM.CLK
SDRAM.CKE
RST_OUT#
SDRAM.A0:
SDRAM.A13
SDRAM.D0:
SDRAM.D15
FLASH.A1:
FLASH.A24
FLASH.D0:
FLASH.D15
FLASH.OE#
FLASH.WE#
FLASH.WP#
FLASH.RDY
FLASH.CS3#
DQ0:DQ15
A0:A10
SDRAM.BA1
SDRAM.BA0
CAS#
SDRAM.CS#
RAS#
LDQM
UDQM
WE#
CLK
CKE
A1:A24
D0:D15
RESET#
OE#
WE#
WP#
FLASH.RDY
CE#
EMIFS
EMIFS can support 16-bit external device width, and provides four chip-selects CS0-CS3 each of which
can support up to 64MB bytes of addressable memory. A number of different memory types can be
connected to EMIFS, such as NAND Flash, NOR Flash, SRAM and so on.
EMIFF
EMIFF can support 16-bit external device width, and memories namely SDRAM, mobile SDRAM and
mobile DDR can connect with it.