Printed Wiring Boards - Woofer Amp Section - Sony PMC-DR50L Service Manual

PMC-DR50L/DR70L
Semiconductor
r
Location
Ref. No. Location
D601 F-9
D602 F-10
D603 F-10
D604 F-11
D606 B-5
D607 B-6
D608 B-6
D609 E-6
D610 D-5
LED611 D-3
IC601 D-8
Q601 B-5
Q602 C-5
Q603 C-6
Q604 C-4
Q605 D-5
Q606 C-6
Q607 C-7
Q608 B-7
Q609 E-5
Q610 B-6
Q611 E-4
Q612 B-6
Q613 D-4
Q615 B-6
Note:
• X : parts extracted from the component side.
• b : Pattern from the side which enables seeing.
– 68 –
5-14. PRINTED WIRING BOARDS – WOOFER AMP SECTION – (DR70L ONLY)
2 3
1
L-CH SPEAKER UNIT (DR70L)
A
B
C
WOOFER UNIT (DR70L)
[LED BOARD]
LED611
LEVEL
1
2
D
CN609
11
1-676-257- (11)
E
[VOLUME BOARD]
R655
CN609 CA602
1
2
CN614 C602
F
1
3
11
(11)
1-676-256-
G
SP601
SPEAKER
(WOOFER)
P601
H (VOLUME IN)
02
Refer to page 25 for Circuit Boards Location.
r
4 5 6 7
[SP MAIN BOARD]
Q612
B
C627 B
C C
E E
Q615
E
Q601 C
B
B
CN602
C
E
1 E
C614
C
B
5
R622
R619
R620
R617
B
E
C
C
C617 B
E
B
C
J608
E
B E
C
C
B
E
J606
B J607
C
CN610
E
1
R607 J605
Q613
R602
C605
D
C623
5
S
G
CA602
R654
7
C601
J603
2 1 CN604
CN611
CN613
Q611
1 5
4 1 C604
S
D
G
G S D
Q609
1-676-248-
SP201
SPEAKER
L-CH
[SP JACK BOARD]
4 1
1
CN613
CN611
JK602
– +
VOLUME OUT
+ WOOFER
–
SPEAKER IN
L-CH
WOOFER OUT
4Ω IMPEDANCE USE 6Ω
JK604
– 69 –
8 9 10
[POWER TRANSFORMER BOARD]
T601
POWER TRANSFORMER
[SP AMP IC BOARD]
* NOT REPLACEABLE:
BUILT IN TRANSFORMER
CN601
1 IC601
7
6
5
5
2
1
7
F602 F603
11
(11)
1-676-425-
11
(11)
5
[AC OUTLET BOARD]
R635
11
(11) JK605
CN607
AC OUTLET
MAX 50W
(UNSWITCHED)
JK601 AC230V ~50Hz
SIGNAL IN
BASS
(11)
1-676-251-
– 70 –
11 12 13
*
F601
CN607
AC IN
CN606
KH603
1
3
11
(11)
1-676-249-
11