Sony HCD-EP50, Service Manual

Page: 23 / 48

HCD-EP50
23 23
D1 D-2
D2 D-2
D3 I-5
D4 C-9
D5 D-4
D6 F-7
D7 H-7
D8 H-5
D10 D-3
D11 D-3
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
Q4 B-3
Q5 A-7
Q6 E-3
Q7 F-3
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
E C B
E C B
A K A
B C E
B C E B C E
E C B
E C B
B C E
B C E
E C B
E C B
E C B
E C B
E C B
E C B
B C E
B C E
B C E
B C E
E C B
E C B
E C B E C B
E C B
E C B
E C B
E C B
E C B E C B
E C B
B C E B C E
B C E B C E
B C E
B C E B C E
E C B
E C B
B C E
B C E
B C E
B C E
8
8
1
1
2 6
3
1
2
3
1 1 1
2
2
3
3 2 3 5
5 4 4 5 4
1 5
5
4 4
–1 –2
FM ANT
75
Ω
COAXIAL
EXCEPT
AEP, UK, CH
TP
(FM VT)
CN13
AM ANT
CN12
PHONES JK401
DISPLAY
BOARD
1
2
F
AM FREQ
STEP
SW1
9kHz
r
10kHz
L
R
SPEAKER
(IMPEDANCE USE 8
Ω
)
CN17
8
1
POWER BOARD
CN601
E
DISPLAY
BOARD
C
DISPLAY
BOARD
D
R179
U4
FM FRONT-END
1
2
3
5
4
1
2
3
5
4
2 1 3
5 6 4
HPRE101
REC/PB/ERASE
HEAD
9
9
TAPE
MECHANISM
BLOCK
* CD
BLOCK
*
SUPPLIED AS THE
ASSEMBLED BLOCK
B
A
DISPLAY
BOARD
DISPLAY
BOARD
U2
IC901
U1
U9
U6
U14
U13
U12
U3
8
1
U11
U8 U7
U10
U15
1 3 2 1 3 2
2 3 1
1
2
6 5 4
9 8 7
3
5 1
A
B
C
D
E
F
G
H
I
1 2 3 4 5 6 7 8 9
MAIN BOARD
CF2
T8
AM OSC
T6
AM RF
+
+
–
–
HEADPHONE
BOARD
EXCEPT
AEP, UK, CH
EXCEPT
AEP, UK, CH
EXCEPT
AEP, UK, CH
AEP, UK,
CH
(AEP, UK, CH)
(AEP, UK, CH)
(AEP, UK, CH)
(AEP, UK, CH)
(AEP, UK)
EXCEPT
AEP, UK, CH
(INCLUDED IN MAIN BOARD)
4 5
1
1
2
3
3
K A
K A
EC
B
FM OSC
L902
FM
RF
TP
(AM VT)
AM IF
(EXCEPT AEP, UK, CH)
6-10. PRINTED WIRING BOARDS – MAIN/HEADPHONE Boards –
(Page 26)
(Page 24) (Page 24)
(Page 24)
(Page 24)
(Page 24)
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
Ref. No. Location Ref. No. Location
• Semiconductor Location
Ver 1.1