22
CDX-4250RV
3. PRINTED WIRING BOARDS -- CD MECHANISM SECTION --
((Page 5))
Ref. No.
Location
IC1
D-2
IC2
E-5
IC3
B-2
Q1
F-5
Q2
F-6
· Semiconductor
Location
33
CDX-4250RV
4. SCHEMATIC DIAGRAM -- CD MECHANISM SECTION -- · Refer to page 1 for Waveforms.
Note:
· Voltage and waveforms are dc with respect to ground
under no-signal conditions.
no mark : CD PLAY
: Impossible to measure
((Page
6))
44
CDX-4250RV
5. PRINTED WIRING BOARD -- MAIN SECTION --
D403
B-3
D603
G-2
D881
H-4
D909
D-10
D914
B-9
D918
J-9
D919
K-9
D920
B-9
D930
C-9
D940
D-10
IC401
F-6
IC601
F-3
IC602
I-3
IC603
G-3
IC801
J-7
Q110
B-4
Q111
B-4
Q210
C-4
Q211
C-5
Q615
F-5
Q618
J-1
Q905
C-10
Q906
H-5
Q907
I-12
Q908
I-12
Q913
G-13
Q914
K-9
Q915
K-9
Q916
C-9
Q917
C-10
Q918
C-10
Q919
G-13
Q924
D-12
Q925
D-11
Q940
D-11
· Semiconductor
Location (side A)
Ref. No.
Location