Sony STR-KM7 - Page 49

STR-KM5/KM7
49
• IC Block Diagrams
IC2007 TC74VHC393FT (ELK)
(DIGITAL
AUDIO BOARD (3/4))
IC2019 74AHC1G08GW-125
(DIGITAL AUDIO BOARD (2/4))
IC2033 TC7SH126FU (DIGITAL AUDIO BOARD (2/4))
IC2032 TC74VHC157FT (EKJ)
(DIGITAL AUDIO BOARD (2/4))
IC2804 TC74VHC157FT (EKJ)
(DIGITAL AUDIO BOARD (3/4))
14 13 12 11 10 9 8
1 2 3 4 5 6 7
QA QB QC QD
A
CLEAR
VCC
QA QB QC QD
A
CLEAR
GND
IN
IN
GND
1
2
3
5
4
VCC
OUT
SELECT
111
1A
2
3
4
5
6
7
INPUT
INPUT
OUTPUT
OUTPUT
1A
1B
1Y
2A
2B
2Y
1B
1Y
2A
2B
2Y
GND
8
VCC
STROBE
16
4A
15
14
13
11
12
11
10
INPUT
INPUT
OUTPUT
OUTPUT
G
4B
4Y
3A
4A
4B
4Y
3A
3B
9
3B
3Y
3Y
S
GATE
IN A
GND
VCC OUT-Y
1 2 3
45
IC2123 WM8768GEDS/R (DIGITAL AUDIO BOARD (4/4))
1MODE
18 VMID
17 VREFP
16 VREFN
20 NC
19 NC
22 VOUT1R
21 VOUT1L
24 VOUT2R
23 VOUT2L
26
VOUT3R
25
VOUT3L
28 AVDD
27 AGND
15 TESTREF
2MCLK
3BCLK
5DVDD
6DGND
4
LRCLK
11ML/I2S
12MC/IWL
13MD/DM
14MUTE
7DIN1
8DIN2
9DIN3
10DNC
AUDIO
INTERFACE,
DIGITAL
FILTERS
CONTROL
INTERFACE
STEREO
DAC
STEREO
DAC
STEREO
DAC
LOW
PASS
FILTER
LOW
PASS
FILTER
LOW
PASS
FILTER
IC2421, IC2812 TK11150CSCL-G
(DIGITAL AUDIO BOARD (4/4))
IC2303 TC7WHU04FK (DIGITAL AUDIO BOARD (3/4))
IC3527 TC7WHU04FK (HDMI RE PC BOARD (2/2))
VCC 1Y 3A 2Y
1A 3Y 2A GND
1 2
3
4
8 7
6
5
CONTROL
CIRCUIT
BANDGAP
REFERENCE
+
–
OVER HEAT &
OVER CURRENT
PROTECTION
1
VCONT
3
NP
2
GND
4
VOUT
5
VIN
Ver. 1.4