Sony TC-KB920S - Waveforms and IC Block Diagrams; Main Board Waveforms and IC Diagrams

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• Waveforms
– MAIN BOARD (1/2) –
1 T101 4
2 IC304 !¡, !™
4 IC304 7, 8
5 T301 1
6 IQ310 C, Q311 C3 T201 4
– MAIN BOARD (2/2) –
7 IC801 #º (XIN)
26.4 Vp-p
6.4
µ s
4.5 Vp-p
6.4
µ s
23.2 Vp-p
6.4
µ s
3.8 Vp-p
6.4
µ s
148 Vp-p
6.4
µ s
30 Vp-p
6.4
µ s
4.1 Vp-p
4 MHz
• IC Block Diagram
IC803 BA6219B (MAIN BOARD)
1
2 3
4
5 6 7 8 9 10
GND
MOTOR
DRIVE
NOISE
FILTER
CLAMP
FWD.IN
REV.IN
VCC 1 VCC 2
NOISE
FILTER
MOTOR
DRIVE
MOTOR
DRIVE
MOTOR
DRIVE
T.S.D O.C.P
FWD/REV/STOP
CONTROL LOGIC