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Troubleshooting With Disconnected Q1101/1102 (1/2)
Without 'AMP_+/-B', we could check IC101 and the DC-DC Converter Control circuit easily and safely
Since Q1101 is disconnected there is, no floating voltage at pin 4
of IC101. The power supply for the high channel drive is not
floated.
5
200 / 210 KHZ
4.2 - 5V P-P
6
Check the IC101 circuit
-B_+12V
DCDC +12V
200 / 210 KHZ
2
11V. P-P
3
4
200 / 210 KHZ
1
12V. P-P
8
7
-B
OUT AT PIN 3
IN AT PIN 5
+11.3v
+0.8v
-B_+12v
-B
OUT AT PIN 8
IN AT PIN 6
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