Main Board - Sony RHT-G1000 Service Manual

RHT-G1000
• IC Block Diagrams
– MAIN BOARD –
IC101-104, 106, 107 CXD9775M
PWM BP 2
DREG RTN 5
PWM AP 17
IC108-110 CXD9843AR
PWM
1 2 3 4 5 6
32
DVDD DREG
GND 1
PWM
RECEIVER
GND 3
DGND
RESET 4
DIGITAL
DREG
REGULATOR
GVDD 6 GVDD
M3 7
DREG 8 DREG
DGND 9
M1 10
PROTECTION
M2 11
LOGIC
DVDD 12
OT
SD 13
&
UVP
DGND 14
OTW 15
DVDD DREG
GND 16
PWM
RECEIVER
GND 18
DGND
48 47 46 45 44 43 42 41 40 39 38 37
Liner
∆ ∑ Converter
Interpolator
Clock Generator
(Secondary Clock System)
INIT/MUTE
7 8 9 10 11 12 13 14 15 16 17 18 19 20
GVDD
DREG OCH
GATE
DRIVE
TIMING
CONTROL
&
PROTECTION
GATE
DRIVE
OCL
OCL
GATE
DRIVE
TIMING
CONTROL
&
PROTECTION
GATE
DRIVE
DREG OCH
GVDD
Sampling Rate
Converter
Filter
&
Gain
DF2
LOW
Control
CUT
Filter
Clock Generator
(Primary Clock System)
Serial Control
21 22 23 24 25 26 27
36 GVDD B
35 GVDD B
34 GND
33 BST B
32 PVDD B
31 PVDD B
30 OUT B
29 OUT B
28 GND
27 GND
26 OUT A
25 OUT A
24 PVDD A
23 PVDD A
22 BST A
21 GND
20 GVDD A
19 GVDD A
S P
DF1
36 XFSIIN
35 DVDD
34 TEST
33
BFVSS
32 BFVDD
28 29 30 31