SA-VK470EE, SC-VK470EE - Panasonic Audio Service Manual (repair manual). Page 127

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22.1.3. Part Location
22.1.3.1. SMPS P.C.B.
 
SMPS P.C.B. 
Thermistor: TH5860 
(Temperature Detect) 
Transistor: QR5801 & 
QR5802 (– 30V Detect)
 
Feedback circuit: 
PC5702 & PC5799 
Temperature Detect  
Q5862, Q5860, Q5861
 
Feedback circuit: 
PC5720 & PC5701 
+18V FAN : D5805 
Fig. 1 SMPS P.C.B.
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