Sony HT-GT1 Service Manual page 46

HT-GT1
• IC Block Diagrams
– MAIN Board –
IC002 TAS5613APHDR
64 63
OC_ADJ 1
RESET 2
C_STARTUP 3
ANALOG
+
PWM
LOOP
INPUT_A 4 – RECEIVER
FILTER
ANALOG
+
PWM
LOOP
INPUT_B 5 – RECEIVER
FILTER
VI_CM 6
GND 7
AGND 8
VREG 9
ANALOG
INPUT_C 10 +
PWM
LOOP
RECEIVER
–
FILTER
INPUT_D 11 +
ANALOG PWM
RECEIVER
LOOP –
FILTER
PWM
ACTIVITY
DETECTOR
CURRENT OVER-LOAD
CB3C
SENSE PROTECTION
PVDD_X
STARTUP
GND
CONTROL
FREQ_ADJ 12
POWER-UP
OSC_IO+ 13 VREG UVP
RESET
OSC_IO– 14
GVDD_X
SD 15
OTW1 16
17
IC004, 005, 5003 PCM1754DBQR
SYSTEM
SYSTEM
CLOCK 16 SCK
CLOCK
MANAGER
BCK 1 15 FMT
AUDIO SERIAL
DATA 2 SERIAL CONTROL 14 MUTE
PORT PORT
LRCK 3 13 DEMP
DGND 4
POWER
NC 5
4x/8x OVERSAMPLING DIGITAL
SUPPLY
VCC 6 FILTER & FUNCTION CONTROL
12 TEST
ENHANCED MULTILEVEL ZERO
11 ZEROA
DELTA-SIGMA MODULATOR DETECT
10 VCOM
9 AGND
D/A D/A
CONVERTER CONVERTER
OUTPUT AMP OUTPUT AMP
& LOW-PASS & LOW-PASS
FILTER FILTER
VOUTL 7
VOUTR 8
HT-GT1
62 61 60 59 58 57 56 55 54 53 52 51 50 49
TIMING GATE-
CONTROL
CONTROL DRIVE
48 GND_A
47 GND_B
46 GND_B
45 OUT_B
TIMING GATE-
CONTROL
CONTROL DRIVE 44 OUT_B
43 PVDD_B
42 PVDD_B
41 BST_B
40 BST_C
39 PVDD_C
38 PVDD_C
37 OUT_C
TIMING GATE-
CONTROL
CONTROL DRIVE
36 OUT_C
35 GND_C
34 GND_C
33 GND_D
TIMING GATE-
CONTROL
CONTROL DRIVE
PROTECTION
TEMP
&
SENSE
I/O LOGIC
PPSC
18 19 20 21 22 23 24 25 26 27 28 29 30 31 32
IC1001 TPS2553DBVR
RREVERSE VOLTAGE
– COMPARATOR
+
CURRENT
IN 1
SENSE
4-ms
DEGLITCH
CHARGE
GND 2
PUMP
CURRENT
EN 3 DRIVER
LIMIT
UNDERVOLTAGE
LOCKOUT
8-ms
DEGLITCH
THERMAL
SENSE
IC1002 BU94502AMUV
40 39 38 37 36 35 34
DVSSIO 1 SD CARD
AUDIO
CONTROLLER
RESETX 2
SOUND
TMODE 3 EFFECTER
KEY_COL1/IRPTO 4
MP3/WMA/
KEY_COL2/SEARCH 5
KEY_COL3/MCHNG 6 SYSTEM FAT FILE
DECODER
CONTROLLER SYSTEM
KEY_ROW1/BUSY 7
KEY_ROW2/SCL 8
KEY_ROW3/SDA 9
PLL
DVDD_M 10 LDO
(OSCILLATOR) CONTROLLER
11 12 13 14 15 16 17 18 19 20
IC1003 SRC4182
LGRP 1
REFERENCE INTERPOLATION
RCKI 2
CLOCK FILTERS
NC 3
SDIN 4
AUDIO
BCKI 5 INPUT
PORT
LRCKI 6
RATE
ESTIMATOR
VIO 7
DGND 8
BYPAS 9
IFMT0 10
CONTROL
IFMT1 11
LOGIC
IFMT2 12
RST 13
MUTE 14
IC1004 PCM1808PWR
DELTA-SIGMA
6 OUT
MODULATOR 1/64
DECIMATION
FILTER
VREF 1
REFERENCE
WITH
HIGH-PASS
DELTA-SIGMA
FILTER
MODULATOR
AGND 2
VCC 3
5 ILLM POWER
SUPPLY
VDD 4
4 FAULT
DGND 5
CLOCK & TIMING CONTROL
SCKI 6
LRCK 7
46 46
33 32 31
DAC
30 AMUTE
29 DVDDIO
28 LED_REPEAT/MCLK
27 LED_PUSB/DATA
LED
AAC 26 LED_PSD/BCK
DRIVER
25 LED_PLAY/LRCK/SPDIF
24 LED_ERROR/CLK24MI
23 REXIT
USB 22 USBDP
21 USBDM
DECIMATION
RE-SAMPLER
FILTERS
28 MODE2
27 MODE1
26 MODE0
25 BCKO
AUDIO
24 LRCKO
OUTPUT
23 SDOUT
PORT
22 VDD
21 DGND
20 TDMI
19 OFMT0
18 OFMT1
17 OWL0
16 OWL1
15 RDY
IC1005, 1009 TC74VHC153FT (EL)
DATA INPUTS
STROBE A
ANTIALIAS
14 VINR VCC 2G SELECT 2C3 2C2 2C1 2C0
LOW-PASS FILTER
16 15 14 13 12 11
ANTIALIAS
13 VINL 2C3 2C2 2C1 2C0
LOW-PASS FILTER
2G
B B A
12 FMT
SERIAL
11 MD1
INTERFACE
10 MD0
&
MODE/FORMAT 9 DOUT
CONTROL
8 BCK B B A
1G
1C3 1C2 1C1 1C0
1 2 3 4 5 6
STROBE B 1C3 1C2 1C1 1C0
1G SELECT
DATA INPUTS
OUTPUT
2Y
10 9
2Y
A
A
1Y
7
8
OUTPUT GND
1Y