3-7
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Only for training and service purposes
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7. PWM AMP PART CHECK
YES
YES
NO
Refer to SMPS Troubleshooting.
PN102
3PIN + 13,14,15 PIN 28V.
YES
YES
NO
Check resistance power
IC700:R702,701,726,727,724.
Check input power of IC700,
1,36,17,18,19 PIN +12V
YES
NO
Replace the related parts.
Check output LINE COIL.
POWER AMP PART CHECK
OK
Check input power IC700
34,29,26,21 PIN.
YES
Check PWM MODULATOR
input 4,6,14,16 PIN.
YES
Check POWER IC 700 34,
29,27,20 PIN output.
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