Printed Wiring Board Main Section - Sony HCD-EP404 Service Manual

6-3. Printed Wiring Board MAIN Section

1 2
A
B
C
D
E
HEADPHONE
SPEAKER
BOARD
(IMPEDANCE USE 8 )
PHONES
F
• See page 15 for Circuit Boards Location.
3 4
MAIN BOARD
L104
AM FERRITE-ROD
ANTENNA
FM
ANT
FM
LEAD ANTENNA K
A
K A
A
K
K A
TP
(FM VT)
E
E
K
K
BEAT CUT
1SS
2SS
A
A
1SS
2SS
E
E
K A
L
R
IC603
K
A
TO
POWER
BOARD
CN505
(Page 25)
5 6 7
E
TP
(AM VT)
E
A K
E
E
E
K
A
E
E
E
E
IC401
K A
K A
E
K A
E
K A
E
E E
E
A K
POW
-FA
PHOTO
IC602
MODE
A
B C
TO TO
DISPLAY DISPLAY
BOARD BOARD
(Page 23) (Page 23)
19 19
8 9
(RECORD/PLAYBACK HEAD)
E
IC701
(ERASE HEAD)
E
E
R722
E
R706
A
K
A
K
E
E
A
K
E
E
A
E
E
E K
E
TO
DISPLAY
BOARD
(Page 23)
D
TO
DISPLAY
BOARD
(Page 23)
CD
BLOCK
SUPPLIED AS THE
ASSEMBLED BLOCK
E
E
E
A
M (CAPSTAN/REEL)
E
K TAPE PLAY
DETECT SENSOR
(TRIGGER PLUNGER)
(MODE)
(HALF)
(PROTECT(FWD))
HCD-EP404
• Semiconductor
Location
(L-CH)
Ref. No. Location
D101 B-4
(R-CH)
D102 B-4
D103 B-4
D104 B-4
D105 B-4
(ERASE)
D107 C-7
D401 D-4
D402 D-4
D403 D-4
D404 E-6
D405 D-7
D601 E-6
D604 F-5
D701 B-8
D702 B-8
D703 C-8
D704 B-8
D706 F-7
IC101 C-5
IC102 C-6
IC401 D-5
IC601 E-4
IC602 F-5
IC603 F-5
IC701 A-7
IC702 B-7
Q101 C-5
Q102 C-4
Q103 C-4
Q104 B-6
Q401 D-4
Q402 D-4
Q403 E-5
Q404 E-5
Q603 E-5
Q604 F-6
Q605 E-6
Q606 E-6
Q701 B-7
Q702 B-8
Q703 B-7
Q704 B-8
Q705 B-7
Q706 B-8
Q707 C-7
Q708 C-8
Q711 D-7
Q712 C-8
Q713 C-7
Q714 C-7
Q715 B-8
Q716 B-8
Q717 B-8
Q718 C-8
Q719 C-7
Q720 F-8
Q721 E-7
Q722 F-7
Q723 F-7
Q724 A-8
ZD601 F-6
ZD602 E-5