22
22
CDX-L490EE
3-9. SCHEMATIC DIAGRAM — MAIN SECTION (1/2) — • Refer to page 17 for Waveforms and page 18 for Common Note on Schematic Diagram.
• Refer to page 26 for IC Block Diagrams.
Note:
• Voltage is dc with respect to ground under no-signal
(detuned) condition.
no mark : FM
(
) : AM
<
> : CD PLAY
∗
: Impossible to measure
(Page 23)
C412
C479
C631
C758
D752
D755
D756
D757
D759
D760
R406
R407
R408
R409
R431
R433
R441
R443
R451
R453
R461
R463
R479
R480
R752
D761
D762
R452
R442
R462
R1
R634
R633
R654
R653
R651
D651
D751
D758
D753
D754
C421
C404
C405
JC406
C420
C413
JC441
JC431
C432
C452
C442
C462
JC755
C480
R631
JC754
JC753
C751
C765
C764
C617
C602
C618
C6
R652
D480
Q479
Q478
JC479
JC444
Q461
Q441
C5
D1
C4
C1
JC1
Q451
R432
Q431
Q631
Q651
JC756
D609
D601
C756
R756
L1
R636
R3
R2
J1
D479
F901
C7
R609
L601
R632
C759
C760
C761
C757
C754
Q1
C755
CN601
JC651
JC631
JC609
C2
C601
R405
J330
TU1
C11
JC20
C8
C9
C401
C406
JC407
C407
C431
C451
C441
C461
C753
C332
C333
C334
C335
IC401
R28
R30
C57
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9
9
2
8
9
4
2
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5
6
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Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299