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45
Check Power Supply Voltages for DIR.
MAIN B'D
• [IC103] : 46pin
+5V_A
• [IC103] : 22,36,42pin
+3V3_D1
O.K.?
Check Power Supply Voltages for AMP IC.
MAIN B'D
• [IC118] : 1,36,18,19pin
GVDD +12V OK?
• [IC118] : 21,26,29,34pin
PVDD +29V OK?
Check Power Supply Voltages for PWM CONTROLLER.AMP B'D.
MAIN B'D
• [IC108] : 9,15,36,54pin
VDD +3.3V OK?
Check Reset signal for DIR.
MAIN B'D
• [IC103] : 34pin DIR_RESET
"H" level O.K.?
Check Reset signal for PWM CONTROLLER.
MAIN B'D
• [IC108] : 11pin RESET
"H" level O.K.?
Check Reset signal for AMP IC.
MAIN B'D
• [IC118] : 5,15pin VALID
"H" level O.K.?
Check Oscillation waveform.
MAIN B'D
• [IC103] : 40pin TXO
24.576MHz OK?
Check Oscillation waveform.
MAIN B'D
• [IC108] : 19pin XTL_O
13.5MHz OK?
• [IC108] : 63pin MCLK
MCLK OK?
Check Soldering.
• [IC102] : IN : +12V_A / OUT : +5V_A
• [IC401] : IN : +5V_SMPS1 / OUT : +3V3_D1
• POWER B'D
Check Soldering.
• [R238,R239,R240] : +3V3_5508
Check Soldering.
• [IC403] : 68pin DIR_RESET on MAIN B'D
Check Soldering.
• [IC403] : 77pin 5508_RESET on MAIN B'D
Check Soldering.
• [IC108] : 39pin VALID on MAIN B'D
Check Soldering.
• [XTAL101] on MAIN B'D
Check Soldering.
• [XTAL102] on MAIN B'D
• [IC41] : 17pin 5508_MCLK on MAIN B'D
Check Soldering.
• [R241,R242,R243] : +12V_5142
• [CN408] : 1pin : +12V_D
• [CN101] : 1,2,3pin : +29V
• POWER B'D
NG
NG
NG
NG
NG
NG
NG
NG
OK
OK
OK
OK
OK
OK
OK
OK
2. No Sound, Noise generated
2.1. COMMON
Содержание CEOL RCD-N8
Страница 10: ...10 DIMENSION 299 0 112 0 108 0 35 0 35 0 210 0 280 0 2 0 301 0 218 0 45 0 36 0 30 0 4 0 ...
Страница 22: ...22 3 Remove the screws 4 Remove the screws Shooting direction C Shooting direction A ...
Страница 24: ...24 4 Remove the screws remove the connector wires CN221 CN222 Shooting direction C ...
Страница 84: ...84 PCM9211 MAIN IC103 ...
Страница 85: ...85 PCM9211 Block Diagram ...
Страница 86: ...86 PCM9211 Pin Discriptions ...
Страница 87: ...87 NJM2755 MAIN IC701 NJM2755 Block Diagram ...
Страница 93: ...93 L6565 SMPS IC821 L6565 Block Diagram ...
Страница 94: ...94 ICE3BR1765J SMPS IC871 ICE3BR1765J Block Diagram ...
Страница 95: ...95 2 DISPLAY S020 MXS4035A 3 DISPLAY CP661 ...