Sharp SM-SX100 - Waveforms of CD Circuit

SM-SX100
– 50 –
WAVEFORMS OF CD CIRCUIT
5
4
Observe
each pair.
• QA1, QA5
• QA2, QA6
• QA3, QA7
• QA4, QA8
Observe
each pair.
• QA1, QA5
• QA2, QA6
• QA3, QA7
• QA4, QA8
QA1
(QA2, 3, 4)
COLECTOR
QA5
(QA6, 7, 8)
COLECTOR
QA2
(QA1, 3, 4)
EMITER
QA6
(QA5, 7, 8)
EMITER
2
3
1
• OUTR(+), OUTR(-)
• OUTL(+), OUTL(-)
Observe
each pair.
Observe
each pair.
OUTR(+),
(OUTL(+))
OUTR(-),
(OUTL(-))
• RA5, RA7
• RA6, RA8
Observe
each pair.
• QA1, QA5
• QA2, QA6
• QA3, QA7
• QA4, QA8
RA5
(RA6)
RA7
(RA8)
QA2
(QA1, 3, 4)
BASE
QA6
(QA5, 7, 8)
BASE
7
8
6
Observe Li and Hi of
ICA4 to 7 of each.
Li
Hi
Observe SW section
of Lch and Rch of each.
Observe
each pair.
• QA9, QA11
• QA10, QA12
• QA13, QA15
• QA14, QA16
QA10
(QA9,13,14)
GATE
QA12
(QA11,15,16)
GATE
Set -32V at GND for observation of 6 to 8 .