Printed Wiring Boards - Main/Headphone Boards - Sony HCD-EP50 Service Manual

6-10. PRINTED WIRING BOARDS – MAIN/HEADPHONE Boards –
1 2
(INCLUDED IN MAIN BOARD)
A
8
4 5
1 3
B
K A
FM OSC
CN13
FM ANT
L902
75Ω
FM
COAXIAL
RF
1
2
K A
C
3 EXCEPT
AEP, UK, CH
1
(EXCEPT AEP, UK, CH)
CN12
1
AM ANT
D
2
E C B
HEADPHONE
(Page 24)
BOARD
F
1
DISPLAY
BOARD
2 3
SW1
6 5 4
AM FREQ –2 –1 U9
STEP
E 9 8 7
9kHz
r
PHONES
JK401
10kHz
EXCEPT
AEP, UK, CH
1 5
F
EXCEPT
AEP, UK, CH
+
(AEP, UK, CH)
L
G
–
CN17 (AEP, UK, CH)
SPEAKER
(IMPEDANCE USE 8Ω)
+
R
H
–
8
(AEP, UK, CH)
EXCEPT
AEP, UK, CH
1
I
POWER BOARD
E
CN601
(Page 26)
3 4 5
MAIN BOARD
8 AM IF
U2
3 4
2
1 5
EXCEPT
AEP, UK, CH
TP
(FM VT)
CF2
U1
B C E
AEP, UK,
T8
T6
CH A K A
AM OSC
AM RF
5 1 5 1
3 4 4 5
6 2 2
2
1 4 3 4 3
1
1 5 3 2
(AEP, UK, CH)
U4
TP
FM FRONT-END
(AM VT)
B C E B C E
8
U6
1
U3
U11
B C E E C B
(AEP, UK)
2 3
U10
U8 U7
1 3 2 1 3 2
E C B
6 7 8
HPRE101
REC/PB/ERASE
HEAD
E C B
U12
9
3 4
2
1 5
B C E
4 5
1
3 2
U14
E C B
U15
1
DISPLAY DISPLAY
C D
(Page 24) (Page 24)
BOARD BOARD
23 23
• Semiconductor Location
9
Ref. No. Location
D1 D-2
D2 D-2
D3 I-5
D4 C-9
D5 D-4
D6 F-7
D7 H-7
1 2 3
D8 H-5
D10 D-3
D11 D-3
6 5 4
D12 G-6
D16 I-3
D17 G-6
D18 G-6
D19 G-7
D20 G-5
D23 G-5
D24 I-3
D25 E-3
D26 D-8
D29 D-9
D32 B-7
D33 A-7
D35 I-3
IC901 C-1
Q1 A-6
Q2 C-4
Q3 B-6
E C B
Q4 B-3
Q5 A-7
Q6 E-3
Q7 F-3
9
Q8 D-8
Q9 H-6
Q10 D-3
Q11 A-6
Q12 H-6
Q13 E-3
Q14 E-8
Q15 G-6
Q16 F-3
Q17 B-6
Q18 D-9
B (Page 24)
DISPLAY
BOARD
A
(Page 24)
DISPLAY
BOARD
* CD
BLOCK
* SUPPLIED AS THE
ASSEMBLED BLOCK
TAPE
MECHANISM
BLOCK
HCD-EP50
Ver 1.1
Ref. No. Location
Q19 H-4
Q20 H-3
Q21 G-5
Q22 G-5
Q24 E-5
Q25 E-5
Q26 D-8
Q27 C-9
Q28 C-8
Q29 C-9
Q30 C-7
Q31 B-9
Q32 D-9
Q33 D-9
Q34 B-8
Q35 B-9
Q36 D-9
Q37 H-8
Q38 H-8
Q39 H-8
Q40 H-8
Q41 A-8
Q45 D-8
Q46 D-7
Q47 I-3
Q901 B-1
U1 C-5
U2 B-4
U3 F-4
U6 F-5
U7 H-5
U8 H-4
U9 E-3
U10 H-6
U11 G-4
U12 B-8
U13 C-8
U14 D-8
U15 G-8
Z1 A-6
Z2 H-6
Z4 I-4