Yamaha DVD-C996 Service Manual page 40

A B
DVD-C996/DV-C6280
Q Q
3 7 6 3 1 5 1 5 0
PRINTED CIRCUIT BOARD (Foil side)
1
OPEN/
CLOSE
2
PLAY X CHANGE
STOP PAUSE
3
T E
L 1 3 9 4 2 2 9 6 5 1 3
U, C only
B, G only
R only
A only
4
3 1
4 5
4
2
5
w w w
44
6
C
MAIN ( 2 ) P. C. B.
DISC
5 4 3 2 1
PLAY
T Y E R
MAIN ( 2 ) P. C. B.
1
4 1
5 8
3
U, C only
x a o
. i
D http://www.xiaoyu163.com E
(Lead Type Device)
FROM : MAIN ( 1 )
Q Q
3 7
(Surface Mount Device)
3
U, C, R, A only
A, B, G only
u 1 6 3
y
Semiconductor Location
Ref. No.
D351
45
http://www.xiaoyu163.com
F
2 4
8 9
6 3 1 5 1 5 0 8 9
5 4
1 3
m
c o
Location Ref. No. Location
.
F4 IC351 D4
IC352 C4
IC353 F4
IC354 B4
G H
2
9 8 9 9
Point q (Pin10 of IC351)
H : 0.1 µsec/div
V : 2V/div
DC range 1 : 1 probe
0V
Point w (XL352)
H : 20 µsec/div
V : 2V/div
DC range 1 : 1 probe
0V
Point e
V : 2V/div (CH1)
CH1 : Pin8 of IC351
V : 2V/div (CH2)
CH2 : Pin26 of IC351
H : 5 sec/div DC range 1 : 1 probe
2 4 9 8 2 9 9
CH 1
CH 2
POWER ON POWER OFF
Point r (Pin4 of IC354)
H : 20 µsec/div
V : 2V/div
DC range 1 : 1 probe
0V