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8-1
MAIN BOARD
TABLE OF CONTENTS
Internal IC Diagram ......................................................... 8-1
Voltages ........................................................................... 8-2
Circuit Diagram (Top Left) .............................................. 8-4
Circuit Diagram (Top Right).................. .......................... 8-5
Circuit Diagram (Bottom Left) ............. ........................... 8-6
Circuit Diagram (Bottom Right) ....................................... 8-7
Circuit Diagram (Service) ................................................ 8-8
Circuit Diagram ( Tuner) .................................................. 8-9
PCB Layout(Top View) .................................................. 8-10
PCB Layout(Bottom View) ............................................. 8-11
Electrical Parts list ......................................................... 8-12
6018/6028 INTERNAL IC DIAGRAM
ROM/Flash
8MB
SDRAM
Vibratto
EEPROM
DVD drive
ATAPI
TVM
Compact Flash
UDE
DCI
VSTEM
STA308 INTERNAL IC DIAGRAM
SA
SCL
SDA
LRCKI
2
BICKI
I
C
SE R I A L
SD I1 2
D A T A
SD I3 4
IN
SYSTEM
SDI56
CONT RO L
SDI78
VAR IABLE
C HAN NEL
OVER-
M APPING
SAM PLING
S YST EM TIMING
PL LB
PLL
PO W ER
DOWN
XTI
C KOU T
P W D N
STA505 INTERNAL IC DIAGRAM
IN1A
29
M3
IN1A
IBIAS
23
+3.3V
24
CONFIG
PWRDN
25
M2
PWRDN
PROTECTIONS
R57
R59
FAULT
27
&
10K
10K
LOGIC
26
TRI-STATE
C58
M5
100nF
TH_WAR
28
TH_WAR
IN1B
30
IN1B
M4
V DD
21
V DD
22
V SS
33
REGULATORS
V SS
34
M17
C58
C53
SIGN
100nF
100nF
V CC
35
C60
SIGN
100nF
V CC
36
M15
IN2A
31
IN2A
GND-Reg
20
GND-Clean
19
M16
IN2B
32
IN2B
GNDSUB
M14
1
8-1
Video
TV
Audio
5.1 Audio
DAC
Speakers or
Audio
A/V Receiver
S/PDIF Out
or DTS
VFD
VFD Panel
Driver
M VO
OVER SAM PLING
D DX
T R EBL E,
VOLUME
BASS , EQ
LIMITING
(BIQUA DS)
S ERIAL
D A T A
OU T
VARIABL
E
DO W N -
SAM PLING
EA P D
1A
V CC
15
C30
1 F
L18 22 H
17
OUT1A
C20
16
100nF
OUT1A
C52
C99
14
GND1A
330pF
R98
100nF
6
C23
1B
12
V CC
470nF
R63
R100
C101
C31
20
6
100nF
11
1 F
C21
OUT1B
100nF
10
L19 22 H
OUT1B
13
GND1B
2A
7
V CC
C32
1 F
L113 22 H
8
OUT2A
C110
9
100nF
OUT2A
C109
C107
6
GND2A
R103
330pF
6
100nF
2B
C108
4
V CC
470nF
R104
R102
C106
20
C33
6
100nF
3
1 F
C111
100nF
OUT2B
2
L112 22
H
OUT2B
5
GND2B
OU T1A/B
OUT2A/ B
OU T3A/ B
OU T4 A/B
OU T5A/B
OU T 6 A/B
OU T 7A/B
OU T8A/B
L RCKO
BICKO
SDO 12
SD O3 4
SDO 56
SDO 78
+V CC
C55
1000 F
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