Sony TC-KB920S Service Manual page 16

QQ
3 7 63 1515 0
• Waveforms
– MAIN BOARD (1/2) –
1 T101 4
6.4 µ s
2 IC304 !¡, !™
6.4 µ s
3 T201 4
TE
L 13942296513
6.4 µ s
• IC Block Diagram
IC803 BA6219B (MAIN BOARD)
T.S.D
MOTOR
DRIVE
FWD/REV/STOP
CONTROL LOGIC
www
1 2 3 4
.
http://www.xiaoyu163.com
4 IC304 7, 8
26.4 Vp-p
6.4 µ s
5 T301 1
4.5 Vp-p
6.4 µ s
6 IQ310 C, Q311 C
23.2 Vp-p
6.4 µ s
MOTOR
DRIVE
5 6 7 8 9
x ao
y
i
http://www.xiaoyu163.com
8
– MAIN BOARD (2/2) –
7 IC801 #º (XIN)
3.8 Vp-p
148 Vp-p
Q Q
3 6 7 1 3
30 Vp-p
O.C.P
10
u163
.
– 18 –
2 9 9 4 2 8
4 MHz
1 5 0 5 8 2 9 9 4
m
co
9 9
4.1 Vp-p
2 8 9 9