Troubleshooting For The Error Codes - Kenwood NXR-1700 Service Manual

● Checking the OLED
control (Third)
Checking the communication
waveform
SPI3_SCLK R162
It is unlikely that the BGA broken is the cause of the
trouble when the repeater can't be powered on.
■ Descriptions of signal names
1) MAIN_CLK
2) CLKIN_20M_TO_PLD
3) PMIC_RESET_OUT
4) RESETN
5) PMIC_POWERGOOD
6) SHLT
7) DISPLAY_ON
8) DISPLAY_CTRL_ON
9) DISPLAY_RSTn
10) DISPLAY_CS
11) DISPLAY_CMDn
12) DISPLAY_CLK_SCL
13) DISPLAY_MOSI_SDA
14) SPI3_SCLK
5.2

TROUBLESHOOTING for the error codes

Error Information
Web Tool
OLED Display
(Error Code)
E001 Unprogrammed
E002 USB Overcurrent USB Overcurrent The USB port detects an overcurrent and the repeater forces the USB port to
E003 TX Freq Blank
E004 ESN Blank
E005 Firmware Error
E006 Feature Error
E007 Force FirmProg
E008 DSP Error 1
E009 DSP Error 2
Pass
Normal voltage
Amplitude 3.3V
Pass
: Reference clock for MPU/DSP
: Reference clock for FPGA
: MPU/DSP reset signal controlled by IC1
: MPU/DSP reset signal controlled by V3_3D
: IC1 output voltage judgment signal
: MPU/DSP state transition signal. Signal sent from MPU/DSP to FPGA.
: OLED power supply signal
: Power supply signal of logic IC for OLED display data
: OLED reset signal controlled by FPGA
: Chip select signal for OLED display data controlled by FPGA
: Data/ command control signals for OLED display data controlled by FPGA
: Clock signal for OLED display data controlled by FPGA
: Data signal for OLED display data controlled by FPGA
: Clock signal for OLED display data controlled by MPU/DSP
Error Event /
Item Name
Unprogrammed FPU Data may not be written or all channel data may be blank.
Try to write the suitable FPU Data.
shut down.
To recover this condition, try to the following processes.
1.Remove the USB device.
2.Execute "USB Port Recovery" prepared in OLED Menu>Control> USB Port
Recovery.
If happens again with same device, check the USB device failure or not.
TX Frequency TX Frequency of this channel is blank condition.
Data Blank Make sure whether operating channel is correct or check TX FPU data.
ESN Blank ESN Data may be lost accidentally.
Contact to our service center for further assistance.
Firmware Startup The repeater cannot start the power on process due to the firmware problem
Error used in the error code E005 and the main both.
Contact to our service center for further assistance.
Feature Error There may be gap between the Enhanced Features setting and the Software
Option authenticated in the repeater.
Check the Enhanced Features setting and the Software Option.
Force Firmware The repeater cannot start the power on process due to the main firmware
Programming problem and gets in this mode. Also, the repeater gets in this mode when the
Mode firmware writing failure happens.
Write down the firmware.
DSP Error 1 The repeater cannot continue the process due to the DSP related error.
There may be possible to be recovered by writing the latest firmware.
If not recover, it may be required to replace the whole unit.
DSP Error 2 The repeater cannot continue the process due to the DSP library related error.
There may be possible to be recovered by writing the latest firmware.
If not recover, it may be required to replace the whole unit.
Fail
The MPU/DSP may be broken.
Assumed Condition / Measures
20MHz (1.8V)
20MHz (3.3V)
LOW → RESET cancel
LOW → RESET cancel
LOW → Active
LOW → Active
LOW → Active
LOW → Active
LOW → RESET cancel
4 wire SPI communication
4 wire SPI communication
4 wire SPI communication
4 wire SPI communication
4 wire SPI communication
(No.RA095<Rev.001>)1-87