Sony TC-KB820S - Page 20

– 27 – – 28 –
• Waveforms
– AUDIO BOARD –
1 T51 1
2 Q51 C, Q52 C
3 T81 4
4 T91 4
6 IC81 !¡, !™
– MAIN BOARD (2/3) –
1 IC801 #¡
5 IC81 7, 8
118 Vp-p
9.3
µ
s
26.4 Vp-p
9.3 µ s
63.2 Vp-p
9.3 µ s
64.8 Vp-p
9.3 µ s
6.4 Vp-p
9.3
µ
s
4.3 Vp-p
6 MHz
6.2 Vp-p
9.3 µ s
• IC Block Diagrams
2
1
RECOUT
SCINL ANTSAT
MC3IN
MC4IN
HLSOUT
MCBO
VCC
IREF SCBOL
TCS2L
TCS1L
FBOL TCF1L
TCF2L
4
LFIN
3
TCL2
ZL2
5
9
8
7
6
TCL1
SCINH
TCS1H
ZL1
HLSMP
MCTC
10
11
12 13
VCT
14
VEE
15
24
25
2627
28
29
30
20
21
22
23
19
17
18
16
TCS2H
TCF2H
FBOH
TCF1H
ANTSAT
FLVCR SLVCR
FHVCR
LFICGLFVCR
LFDET
SHVCR
SLDET SLICG
SHICGSHDET
FLDET
FHDET
FLICG
FHICG
V TO I
CONV H
V TO I
CONV H
VREF &
IREF
MC4
MC3DS
MC3DT
MC2
MC1
MC4
MC3
MC1
MC
IC1 CXA1917AM-T6 (DOLBY-S BOARD)
IC502 CXA1579P (MAIN BOARD)
2
1
MUTE
R.CAL
G.CAL
IN
I.REF
BOOST
VCC OUT
4
3
5
9
8
7
6
VEE
IN
10
11
12
13
GND
14
BOOST
15
16
70US
METAL
OUT
SPEED
CONTROL REC EQ AMP
REC EQ AMP
BIAS
+ –
VGS
VEE
VCC