Sony HCD-GTZ2 Service Manual page 40

HCD-GTZ2/GTZ2i/GTZ3/GTZ3i
• Waveforms
– DMB19 Board – – MAIN Board –
IC101 0 (XTALO) IC401 qa (XC-OUT)
1 5
1.2 Vp-p
37 ns
1 V/DIV, 20 ns/DIV
IC101 <zzv (GPIO) IC401 qd (X-OUT)
2 6
3.4 Vp-p
44 ns
2 V/DIV, 20 ns/DIV
IC101 <zzb (GPIO)
3
3.6 Vp-p
354 ns
2 V/DIV, 200 ns/DIV
IC101 <zz. (GPIO)
4
3.4 Vp-p
22.7 s
2 V/DIV, 10 s/DIV
HCD-GTZ2/GTZ2i/GTZ3/GTZ3i
– HUB Board –
IC13 es (XTAL2)
7
2.5 Vp-p
30.8 s
41.6 ns
2 V/DIV, 20 s/DIV 500 mV/DIV, 20 ns/DIV
3.3 Vp-p
198 ns
2 V/DIV, 100 ns/DIV
• IC Block Diagrams
– DMB19 Board –
IC107 TK11133CSCL-G
5
OVER HEAT &
OVER CURRENT
PROTECTION
1.2 Vp-p
CONTROL
–
CIRCUIT
+
BANDGAP
REFERENCE
1 2
IC4601 PCM1808PWR
DELTA-SIGMA
MODULATOR
VREF 1
REFERENCE
DELTA-SIGMA
MODULATOR
AGND 2
VCC 3
POWER
VDD 4 SUPPLY
DGND 5
SCKI 6
LRCK 7
IC4602 CS4335-KSZR
SERIAL INPUT
INTERPOLATOR
SDATA 1
INTERFACE
DEM/SCLK 2
LRCK 3
DE-EMPHASIS
MCLK 4
40 40
IC111 MM1661JHBE
4 8 7 6 5
BIAS
3
1 2
ANTIALIAS
14 VINR
LOW-PASS FILTER
ANTIALIAS
13 VINL
LOW-PASS FILTER
1/64 12 FMT
SERIAL
DECIMATION
11 MD1
INTERFACE
FILTER
10 MD0
&
WITH
MODE/FORMAT
9 DOUT
HIGH-PASS
CONTROL
8 BCK
FILTER
CLOCK & TIMING CONTROL
VOLTAGE
INTERPOLATOR
REFERENCE
ANALOG
DAC LOW-PASS
MODULATOR
FILTER
ANALOG
DAC LOW-PASS
MODULATOR
FILTER
THERMAL
SHUTDOWN
DRIVER
CURRENT
LIMITTER
REFERENCE
3 4
8 AOUTL
7 VA
6 AGND
5 AOUTR