3-47
3-48
OVERALL BLOCK DIAGRAM
1. OVERALL BLOCK DIAGRAM 1
Board-to-Board Connection
SMPS
Board
MAIN Board
FRONT Board
POWER
SWITCH
Board
1
4V
2
4V
3
3V
4
GND
5
GND
6
6.5V
7
GND
8
12V
9
GND
10
30V
11
GND
12
24V
1
2
3
4
5
6
7
8
9
10
11
12
1
GND
2
5V
3
CF_
S
T
B
4
CF_
C
L
K
5
CF_
DA
TA
6
FC_
DATA
7
/FC
_IRQ
8
F_RE
SET
1
2
3
4
5
6
7
8
1
FD(+
) /
-
21
.5
V
2
FD(-) /
-24V
3
-28
V
4
GND
5
GND
1
2
3
4
5
1
GND
2
PWR_KEY
1
2
AC120V
13
GND
13
14
-8V
14
13
(N.C)
13
3
ANODE 1
4
F_RESET
3
4
5
GND
5
Summary of Contents for LSS-3200A
Page 17: ...3 8 Fig 01 Fig 02 Fig 03 ...
Page 32: ...3 23 Fig 02 IC201 87 37 5MHz PERI Clock Fig 03 IC210 2 8MHz MICOM Clock ...
Page 49: ...3 40 FIG 05 IC901 2 Modem Chip Clock 4 9152MHz FIG 06 IC901 3 Modem PLL Out Clock 9 8MHz ...
Page 63: ...3 61 3 62 2 CPU PPC405CR CIRCUIT DIAGRAM ...
Page 64: ...3 63 3 64 3 CPU PERI RF REMOTE VCR CTRL CIRCUIT DIAGRAM ...
Page 65: ...3 65 3 66 4 FRONTEND CIRCUIT DIAGRAM ...
Page 66: ...3 67 3 68 5 HD2 SDRAM CIRCUIT DIAGRAM ...
Page 67: ...3 69 3 70 6 DIRECTV HD STB CIRCUIT DIAGRAM ...
Page 68: ...3 71 3 72 7 VDP I F DISPLAY OUTPUT CIRCUIT DIAGRAM ...
Page 69: ...3 73 3 74 8 NTSC AUDIO PROCESSOR CIRCUIT DIAGRAM ...
Page 70: ...3 75 3 76 9 DIRECTV TP DEMUX CAS I F CIRCUIT DIAGRAM ...
Page 71: ...3 77 3 78 10 2400 BPS ISO MODEM CIRCUIT DIAGRAM ...
Page 72: ...3 79 3 80 11 POWER REGULATION CIRCUIT DIAGRAM ...
Page 73: ...3 81 3 82 12 CAM I F CIRCUIT DIAGRAM ...
Page 74: ...3 83 3 84 13 FRONT 2R VFD KEY SCAN CIRCUIT DIAGRAM ...
Page 75: ...3 85 3 86 14 FRONT POWER KEY CIRCUIT DIAGRAM ...
Page 76: ...3 87 3 88 PRINTED CIRCUIT DIAGRAMS 1 DIGITAL MAIN P C BOARD BOTTOM LOCATION GUIDE ...
Page 77: ...3 89 3 90 2 DIGITAL MAIN P C BOARD TOP ...
Page 79: ...3 93 3 94 6 TIMER P C BOARD LOCATION GUIDE LOCATION GUIDE 7 KEY P C BOARD ...
Page 103: ......