Panasonic KX-TGA914EXS Service Manual ▷ View online
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KX-TGA914EXS
11.3. Things to Do after Replacing IC
Cautions:
Some of the content on this page may not apply to models from some countries. The contents below are the minimum adjust-
ments required for operation.
ments required for operation.
11.3.1. Camera Unit
Before making the following adjustment, ensure you have carried out PC Setting (P.34) in The Setting Method of JIG.
Note:
(*1) Refer to Check Point (P.23)
(*2) YY: revision number
(*2) YY: revision number
“YY” varies depending on the country version. You can find it in the batch file, PQZZ- mentioned in JIG and PC (P.34).
IC
Necessary Adjustment
BBIC
(IC1)
(IC1)
Programs for interface for RF and EEPROM
1. Clock adjustment: Refer to Check Point (F). (*1)
2. 1.8 V setting: Refer to Check Point (A). (*1)
2. 1.8 V setting: Refer to Check Point (A). (*1)
EEPROM
(IC2)
(IC2)
Adjustment parameter data
(country version batch file, default batch file, etc.)
(country version batch file, default batch file, etc.)
1. Default batch file: Execute the command “default.bat”.
2. Country version batch file: Execute the command
2. Country version batch file: Execute the command
“TGA914ErevYY”. (*2)
3. Clock adjustment: Refer to Check Point (F). (*1)
4. 1.8 V setting: Refer to Check Point (A). (*1)
4. 1.8 V setting: Refer to Check Point (A). (*1)
FLASH
(IC5)
(IC5)
Programs
1. Make sure to connect the JIG cable, then detach the DC
Power.
2. Execute the command “flw914 ************.hex”.
3. Connect the DC Power.
4. Press the PC Enter key once.
5. After a few minutes, “Successful upgrade” is displayed
3. Connect the DC Power.
4. Press the PC Enter key once.
5. After a few minutes, “Successful upgrade” is displayed
on the PC indicating downloading has finished.
6. Detach the JIG cable, then disconnect the DC Power.
7. Connect the DC Power.
8. Connect the JIG cable again, and execute the command
7. Connect the DC Power.
8. Connect the JIG cable again, and execute the command
“getchk”, then confirm the checksum value is correct.
• If the downloading fails, start again from step 1.
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KX-TGA914EXS
11.4. RF Specification
**: Refer to Check Point (P.23)
Item
Value
Refer to -. **
TX Power
19 dBm ~ 25 dBm
Check Point (G)
Modulation
-350 ~ -400/+320 ~ +370 kHz/div
Check Point (H)
Frequency Offset
-45 kHz ~ +45 kHz
Check Point (I)
Frequency Drift
< ± 30 kHz / ms
Check Point (J)
RX Sensitivity
< 1000 ppm
Check Point (K)
Timing Accuracy
< ± 2.0 ppm
Check Point (L)
RSSI Level
1D hex ± 8 hex (at -81dBm)
27 hex ± 8 hex (at -63dBm)
27 hex ± 8 hex (at -63dBm)
Check Point (M)
Power RAMP
Power RAMP is matching
Check Point (N)
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KX-TGA914EXS
11.5. How to Check Speaker
1. Prepare the digital voltmeter, and set the selector knob to ohm meter.
2. Put the probes at the speaker terminals as shown below.
2. Put the probes at the speaker terminals as shown below.
11.6. Frequency Table (MHz)
Note:
Channel No. 10: In the Test Mode on Camera Unit.
CAMERA UNIT
Channel No
Transmit Frequency
Receive Frequency
1
1897.344 1897.344
2
1895.616 1895.616
3
1893.888 1893.888
4
1892.160 1892.160
5
1890.432 1890.432
6
1888.704 1888.704
7
1886.976 1886.976
8
1885.248
1885.248
9
1883.520 1883.520
10
1881.792 1881.792
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KX-TGA914EXS
12 Schematic Diagram
12.1. For Schematic Diagram
12.1.1. Camera Unit (Schematic Diagram)
Notes:
1. DC voltage measurements are taken with voltmeter from the negative voltage line.
2. The schematic diagrams may be modified at any time with the development of new technology.
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