Sony KV-32FQ80B Service Manual page 57

A B C
1
2
3
4
5
~ G Board Semiconductor Location Table ~
I D O D E D 6 0 0 7 B - 2 D 6 0 1 2 E - 3 D 6 1 0 2
D 6 0 0 1 K - 4 D 6 0 0 8 G - 3 D 6 0 1 4 D - 2 D 6 1 0 4
D 6 0 0 2 A - 2 D 6 0 0 9 E - 4 D 6 0 1 5 E - 2 D 6 1 0 5
D 6 0 0 4 G - 4 D 6 0 1 0 E - 4 D 6 0 1 6 H - 1 D 6 1 0 6
6
D 6 0 0 6 B - 2 D 6 0 1 1 E - 3 D 6 0 3 5 I - 2 D 6 1 0 7
7
~ VM Printed Wiring Board Conductor side ~
8
9
10
11
D E F
I - 2 C I Q 6 0 0 5 B - 2 Q 6 1 0 2 J - 1
K - 1 C I 6 0 0 1 H - 5 Q 6 0 0 6 H - 4 Q 6 1 0 3 J - 1
L - 1 C I 6 0 0 3 F - 4 Q 6 0 0 7 H - 3 Q 6 1 0 4 J - 1
J - 1 Q 6 0 1 0 B - 2 Q 6 1 0 5 M - 1
T R A N S S I T O R
M - 1 Q 6 0 0 3 M - 1 Q 6 1 0 1 L - 1
G H I J
~ VM Board Waveforms ~
500ns/div
TP2
TP1
800 mVp-p (V) 1.85 Vp-p (V)
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K L M
~ G Printed Wiring Board Conductor side ~
~ VM Board Semiconductor Voltages ~
R f e ( ) e
500ns/div 500ns/div
TP3
Q 5 4 0 0 0 9 .
Q 4 5 1 0 0 9 .
Q 5 4 0 2 5 8 .
Q 5 4 0 3 5 6 .
Q 5 4 0 4 5 6 .
Q 5 4 0 5 5 6 .
Q 5 4 0 6 1 3 3 9 .
36.0 Vp-p (V)
Q 5 4 0 7 1 0 .
Q 5 4 0 8 3 9 .
Q 5 4 0 9 3 9 .
N O
~ G Board IC Voltages ~
C I V l o a t g e T a b e l
R f e N o P n i N o V l o a t g e ( ) V
1 1 4 3 0 .
C I 6 0 0 3 2 1 1 3 .
3 0
~ G Board
Semiconductor Voltages ~
R f e ( ) e ( ) b ( ) c
Q 6 0 0 3 0 0 3 . 1 0 9 .
Q 6 0 0 5 7 1 . 6 9 . 0 6 .
Q 6 0 1 0 0 0 5 . 6 9 .
Q 6 1 0 1 2 3 8 . 2 3 6 . 1 1 0 .
Q 6 1 0 2 0 0 7 . 0
Q 6 1 0 3 2 3 7 . 2 3 4 . 1 0 4 .
Q 6 1 0 4 0 0 2 3 4 .
Q 6 1 0 5 0 0 2 3 6 .
( ) b ( ) c
1 5 . 8 8 .
1 6 . 5 0 .
6 4 . 8 8 .
5 8 . 8 8 .
5 0 . 0
5 6 . 0
1 3 3 6 . 6 7 2 .
1 3 . 6 7 2 .
3 1 . 3 9 .
3 2 . 8 8 .
Note :
Portions of the circuit contained within
the marked areas as shown have high
voltages present. Use care to prevent
electric shock during inspection or repair.
An Isolation Transformer must be used
during any Service work to avoid possible
shock hazard due to live chassis. The
chassis of this receiver is directly
connected to the power line.