Philips HTS5110, Руководство по обслуживанию

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9-1
Troubleshooting
FLOW CHART NO.1
The power cannot be turned on.
Check the Power Switching Adaptor if it has DC 27V output .
Check the 1st pin of IC1501 which location is U1
if it has DC 27V input
Check the 2nd pin of IC1501 which location is U1
if it has DC 5V output
Try to replace a new Power Switching Adaptor
Yes
Check the 2nd & 4th pins of IC CX1117 which location is U26
if it has DC 3.3V
Yes
Yes
No
Replace the L2 & L3
No
Replace the U1 IC(AP1501-5V)
No
Replace the U26 IC(AMC1117-3.3V)
No
FLOW CHART NO.2
Has not voice form the speaker
Check the 1st pin of IC1501 which location is U1 if it
has DC 27V input
Check the 2nd pin of IC PT2313L which location is U17
if it has DC 9V
Check the 2nd pin of IC PT2313L which location is
U17 if it has DC 3.3V
Check the D25 diode whether resistor value is 0Ω
Yes
N o
Y e s
Yes
No
Replace a new one
Replace the U17 IC(PT2313L)
FLOW CHART NO.3
Has not voice form the AUX MP3 COAXIAL
Check the 3rd pin of IC CX1084 which location is U3
if it has DC 5V
Check the L58 L59 L64 whether has DC 3.3V
Y e s
No
Replace the U13 IC(AMC1117-3.3V
Y e s
Check the Q16 Audion Collector whether has DC 0V
FLOW CHART NO.4
Can not read USB Device
Check the P2 pins connector whether has DC 5V
No
Check if it has DC 5V
Y e s
Y e s
No
Check Base Polarity is DC 0.6V
Replace the new Q16 2N3904 Audion