Pioneer SX-319V-K, Service Manual

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SX-319V-K
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2. Notes on Ground Points Connection
When reassembling after disassembling the product for repair, before connecting the power cord, make sure that the 2P
wire from the CN206 of the P.C.B SUB Assy (DSP) is connected to the CP803 of the P.C.B TOTAL Assy (INPUT).
If the power is turned ON without the above connection, the CODEC IC (IC109: AK4588) of the P.C.B SUB Assy
(DSP) may be damaged.
[Note 1]
During repair, before checking the P.C.B SUB Assy (MAIN), etc., with the rear chassis removed, be sure to connect the
GND terminal of the main capacitor to the rear chassis (TUNER PACK CHASSIS), as shown below, then connect the
power cord.
Without grounding connection, the protection circuit will be activated.
After repairing, be sure to remove the ground wire before reassembling.
[Note 2]
CP803
TUNER PACK CHASSIS
P.C.B SUB Assy (MAIN)
MAIN CAPAITOR GND
REAR CHASSIS
REAR CHASSIS
GND WIRE
(Be sure to disconnect the GND
wire before reassembly.)