Service manual

7-1
BLOCK DIAGRAMS
System Control Block Diagram
P7151BLS
77
80
2
65
79
SCL
INPUT-0
INPUT-1
PROTECT-2 PROTECT-1 PROTECT-3
P-ON-H
SDA
55 BUS-CONT
REMOTE SENSOR
KEY SWITCH
28 20 39
+5.7V-CTRL
MCU+5.7V-CTRL
RESET
DTV-ON-H
+8.7V-CTRL
+5.7V-CTRL
MCU+5.7V-CTRL
+8.7V-CTRL
TO CRT/H.V. BLOCK
DIAGRAM
PROTECT-2 PROTECT-1 PROTECT-3
P-ON-H
KEY-IN1
RCV-IN
RCV101
IC901
(MEMORY)
SCL
6
SDA
VOLUME
7 6 8
76
9 4
78
I2C-OPEN
IC111
TV MICON/VIDEO /AUDIO/CHROMA /DEFLECTION
56 14
RESET
DTV-ON-H
VOLUME
AUDIO-MUTE
MAIN CBA
INPUT-1 INPUT-0
SCL SDA
75
AUDIO-MUTE
DTV-S-RESET DTV-S-SREQ DTV-S-SCLK DTV-S-SIN DTV-S-SOUT
13 54 57 58 59
Q161
SWITCHING
Q131
SWITCHING
SWITCHING
SWITCHING
Q912
Q911
5 7
CS
TO DTV MODULE BLOCK DIAGRAM
IC101
(DTV SIGNAL PROCESS)
DTV MODULE CBA UNIT
38
155 154 153 204
DTV-S-SREQ
DTV-S-SCLK
DTV-S-SIN
DTV-S-SOUT
DTV-S-RESET
CN901CN101
12
12
10
10
9
9
8
8
7
7
DTV-S-SREQ DTV-S-SCLK DTV-S-SIN DTV-S-SOUT DTV-S-RESET
TO AUDIO BLOCK DIAGRAM
TO POWER SUPPLY BLOCK DIAGRAM