TROUBLE SHOOTING
1. OLED dosen't light
Check Reset signal for Main μ-com.
MAIN PCB
[IC214] : 25pin RESET
"H" level O.K.?
Check Oscillation waveform.
MAIN PCB
[IC214] : 23pin
8MHz OK?
Check Power Supply Voltages for OLED.
MAIN PCB
[CN504] : 9pin +19V_OLED
[FPC303] : 16pin +17V_OLED
Check Power Supply Voltages for SMPS.
Check the following voltages when the unit is connected to the AC
power supply.
SMPS PCB
[CN222] : 3 or 4 pin +5V
[CN222] : 1pin +19V
If these voltages are not output, a fault may have occurred in the
SMPS PCB.
Check Power Supply Voltages for System µ-com.
MAIN PCB
+3.3CPU [IC301] : 3pin
Check Drive Signals for OLED.
FRONT PCB
[FPC502] : OLED_(DC, MOSI, SCLK, CS)
END
Check the soldering or replace each device.
MAIN PCB
[IC301]
Check the soldering or replace each device.
[IC214], [IC307]
Check the soldering or replace each device.
[X301] on MAIN PCB.
Check the soldering or replace the MAIN PCB.
[IC310] on MAIN PCB.
[FPC303] on MAIN PCB.
[FPC502] on FRONT PCB.
[FPC501] on FRONT PCB.
Replace the SMPS PCB.
Check the soldering or replace each device.
[IC214] on MAIN PCB.
[FPC502] on FRONT PCB.
OLED MODULE.
NG
NG
NG
NG
NG
NG
OK
OK
OK
OK
OK
34
Содержание PMA-50
Страница 8: ...Personal notes 8...
Страница 28: ...4 Enter the user name company name and Click Next 5 Click Next 6 Click Finish 28...
Страница 41: ...fig 7 DIR SYS ucom communication waveform W0IC214 140pin DIR_CE W1R362 DIR_CL W2R364 DIR_DI W3R363 DIR_DO 41...
Страница 42: ...Personal notes 42...
Страница 71: ...PCM9211 IC204 PCM9211 Block Diagram 71...
Страница 72: ...PCM9211 Pin Discriptions 72...
Страница 80: ...BT_Module MDX 5XR IC501 Pin Map Top View Block Diagram 80...