26
TROUBLE SHOOTING
1. OLED dosen't light
Check Reset signal for System
μ
-com.
MAIN B'D
• [IC31] : 19pin RESET
"H" level O.K.?
Check Reset signal for OLED
μ
-com.
DISPLAY B'D
• [IC81] : 19pin RESET
"H" level O.K.?
Check Power Supply Voltage for OLED
μ
-com.
DISPLAY B'D
• +3.3V_OLED, [Q813] : 1pin
Check Oscillation waveform.
MAIN B'D
• [IC31] : 20pin
16MHz OK?
Check Oscillation waveform.
DISPLAY B'D
• [IC81] : 20pin
16MHz OK?
Check Power Supply Voltages for OLED.
DISPLAY B'D
• [CN84] : 24pin +3.3V
• [CN84] : 3pin +16V
Check Reset Signal for OLED.
DISPLAY B'D
• [CN84] : 20pin
"H" level O.K.?
Check OLED dirive Signal.
DISPLAY B'D
• [CN84] : 13-6pin DA0-DA7
END
Check Power Supply Voltages for System
μ
-com.
MAIN B'D
• +6V_CPU, [IC91] : 3pin
• +3.3V_CPU, [IC91] : 2pin
Check Soldering.
• [IC91] on MAIN B'D
Check Soldering.
• [IC31] on MAIN B'D
Check Soldering.
• [IC81] on DISPLAY B'D
Check Soldering.
• [Q813] on DISPLAY B'D
Check Soldering.
• [X202] on MAIN B'D
Check Soldering.
• [X802] on DISPLAY B'D
Check Soldering.
• [CN88] on DISPLAY B'D
• [CN80] on MAIN B'D
Check Soldering.
• [IC81] on DISPLAY B'D
Check Soldering.
• [IC81] on DISPLAY B'D
NG
NG
NG
NG
NG
NG
NG
NG
NG
OK
OK
OK
OK
OK
OK
OK
OK