Sony CDX-L550 / CDX-L550V / CDX-L550X Service Manual ▷ View online
21
21
CDX-L550/L550V/L550X
3-8. PRINTED WIRING BOARD — MAIN SECTION —
D720
K-2
IC20
I-1
IC51
I-4
IC401
D-4
IC404
B-7
IC501
I-8
IC601
F-13
IC602
J-10
Q21
J-2
Q22
I-3
Q331
H-13
Q332
I-13
Q333
H-13
Q341
G-10
Q431
B-5
Q441
B-5
Q451
B-4
Q461
B-4
Q478
E-8
Q479
E-9
Q551
K-12
Q556
C-13
Q557
K-12
Q631
E-10
Q651
E-10
Q660
I-14
Q661
J-13
Q662
I-13
Q663
J-14
Q664
J-6
Ref. No.
Location
D21
J-2
D22
J-2
D23
I-3
D331
H-13
D332
H-13
D341
G-9
D471
A-9
D472
A-9
D473
A-9
D474
A-9
D475
C-8
D476
A-10
D477
C-8
D478
A-11
D479
D-8
D551
D-13
D556
D-13
D601
B-12
D609
E-11
D610
E-6
D611
B-11
D612
D-10
D613
D-10
D614
C-11
D621
G-13
D662
J-13
D671
K-4
D701
J-4
D710
L-3
D711
K-2
D713
L-2
D714
L-2
• Semiconductor Location
Ref. No.
Location
(Page 24)
(Page 19)
22
22
CDX-L550/L550V/L550X
• Refer to page 17 for Waveforms.
3-9. SCHEMATIC DIAGRAM — MAIN SECTION (1/2) — • Refer to page 29 for IC Block Diagrams.
IC B/D
IC B/D
(Page 23)
Note:
• Voltage is dc with respect to ground under
no-signal (detuned) condition.
no mark : FM
(
no mark : FM
(
) : MW
<
> : CD PLAY
(Page 20)
23
23
CDX-L550/L550V/L550X
IC B/D
3-10. SCHEMATIC DIAGRAM — MAIN SECTION (2/2) — • Refer to page 29 for IC Block Diagrams.
Note:
• Voltage is dc with respect to ground under no-signal
(detuned) condition.
no mark : FM
no mark : FM
(Page 22)
(Page 25)
24
24
CDX-L550/L550V/L550X
3-11. PRINTED WIRING BOARD — SUB (CD) SECTION —
(Page 21)
(Page 27)
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