CDX-C8050X (serv.man3) - Sony Car Audio Service Manual (repair manual). Page 4

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4
2. CHANGE OF CIRCUIT BOARDS
When performing service and inspection, check the part number of
the main, DSO, sub (CD) and key boards.
2-1. DISCRIMINATION
MAIN BOARD    (SIDE A)
Main board part No.
Former : 1-677-862-11
New     : 1-677-862-12
SUB(CD) BOARD    (SIDE A)
Sub(CD) board part No.
Former : 1-677-863-11
New     : 1-677-863-12
KEY BOARD    (SIDE A)
Key board part No.
Former : 1-677-058-12
New     : 1-677-058-13
DSO BOARD    (SIDE A)
DSO board part No.
Former : 1-677-864-11
New     : 1-677-864-12
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