Service Mode; Things To Do After Replacing Ic; Main Monitor Station - Panasonic VL-SV74BX Service Manual

Video intercom system
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8 Service Mode
8.1 Things to do after replacing IC
If repairing FLASH Memory, EEPROM, it is necessary to initialize and adjustment. The set doesn't operate if it is not executed.
8.1.1 Main Monitor Station
Preparation
1. Serial JIG cable: PQZZ1CD300E
2. PC in which "Tera Term (Ver. 4.78 later)" (communication software) is installed
3. Macro file CD-ROM for setting: PNZZN511EX
Procedure
1. Connect the AC cord into the power outlet.
2. Connect the PC to the Main monitor using the 3-Wire cable, as shown below.
CL109 (GND)
CL107 (DP1)
CL108 (DP2)

(Main Monitor Station)

3. Start the communication software (Tera Term). The settings are shown below.
Open "Tera Term", select "Serial Port: COM " at "Tera Term: New connection", then click "OK".
Select "Terminal" on the tab of "Setup" to open "Tera Term: Terminal setup".
Select "Receive: CR+LF" and "Transmit: CR" at "New-Line". And then click "OK".
Select "Serial port" on the tab of "Setup" to open "Tera term: Serial port setup". And then select the below items,
then click "OK".
Baud rate:
Data:
Parity:
Stop:
Flow control:
Select [Setup]
Select [Control]
4. To confirm the connection, type in "EPD F", then press the Enter key. The response is "OK".
5. Refer to the "Measurements and Adjustments" for adjustment.
6. Disconnect the AC cord, and disconnect the 3-wire cable.
Main Board
57600
8 bit
none
1 bit
none
[Terminal...] It checks to Local echo.
[Macro] Attached macro (dp3_term.ttl) is performed.
GND (black)
UTX (yellow)
URX (red)
JIG Cable
Note:
*1 COM port names may vary depending
on what your PC calls it.
Check COM port number in advance.
- 20 -
To Serial Port
(COM port
)
*1
PC

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