Read Sony CFS-W338 Service Manual online
1999. 12
CFS-W338
SERVICE MANUAL
SUPPLEMENT - 2
File this Supplement with the Service Manual.
Subject :
z
CHANGE OF TUNER BOARD (US model only)
1-661-477-11
,
1-674-224-11
(ECN-RC801730)
US Model
Canadian Model
AEP Model
UK Model
E Model
Australian Model
Due to this change, only printed wiring boards, schematic diagram and a electrical parts list of US model are
described in this supplement-2.
For other information, please refer to the previously issued CFS-W338 service manual (9-923-040-11) and
Supplement-1 (9-923-040-82).
described in this supplement-2.
For other information, please refer to the previously issued CFS-W338 service manual (9-923-040-11) and
Supplement-1 (9-923-040-82).
z
CHANGE OF TUNER BOARD (US model only)
[TUNER BOARD] (Component side)
Former type : 1-661-477-11
New type : 1-674-224-11
Serial No. of changed model :
US model : 310,906 and later
US model : 310,906 and later
NEW TYPE IDENTIFICATION
– 2 –
02
2
3
4
5
6
A
1
B
C
D
E
CV4 CV2
CV1
CV3
CT1
CT3
CT4
CT2
CV1-4
TUNING
1
5
10
15
30
25
20
16
-2
-1
-1
B
B
C
C
E
E
L1
C24
T2
L2
C22
C23
IC1
CF1
T1
C33
C8
BPF1
C14
S1
L4
R4
R10
R9
R24
R23
R6
R5
R7
R2
R14
R13
R11
R12
C18
C12
R3
C2
C3
C7
C36
C9
C25
C10
C11
C32
C31
C16
C17
C15
C26
RT1
C39
C35
C21
C20
C19
Q6
Q5
C6
R8
JW5
C40
JW1
JW3
JW4
C4
CF2
CF3
JW6
R
L
G
+B
ANT1
FM
TELESCOPIC
ANTENNA
L3
AM FERRITE-ROD
ANTENNA
BAND
FM
tAM
A
MAIN BOARD
CNP1
Service Manual
See Page 16
(
)
11
(11)
1-674-224-
[TUNER BOARD]
z
PRINTED WIRING BOARD – TUNER SECTION – (US model only)
(Service Manual See page 12)
CFS-W338
Note:
• X
: parts extracted from the component side.
•
f
: internal component.
• b
: Pattern from the side which enables seeing.
IC1
C-4
Q5
C-5
Q6
C-5
Ref. No.
Location
z
Semiconductor
Location
– 3 –
– 4 –
CFS-W338
z
SCHEMATIC DIAGRAM – TUNER SECTION – (US model only)
(Service Manual See page 13, 14)
Note:
• All capacitors are in
• All capacitors are in
µ
F unless otherwise noted. pF:
µµ
F
50 WV or less are not indicated except for electrolytics
and tantalums.
and tantalums.
• All resistors are in
Ω
and
1
/
4
W or less unless otherwise
specified.
•
f
: internal component.
•
U
: B+ Line.
•
H
: adjustment for repair.
• Voltages are dc with respect to ground under no-signal
(detuned) conditions.
no mark : FM
(
no mark : FM
(
) : AM
• Voltages are taken with a VOM (Input impedance 10 M
Ω
).
Voltage variations may be noted due to normal produc-
tion tolerances.
tion tolerances.
• Signal path.
F
: FM
