Toshiba DVR80KF Service Manual page 46

Sub System Control Block Diagram
1V2CONT
TO SUB
POW-SW
POWER SUPPLY
REG-CONT
BLOCK DIAGRAM
DTV-SYS-RESET
DTV-TXD
TO DTV MODULE
DTV-RXD
BLOCK DIAGRAM
DTV-S-SCLK
IC101
(MAIN MICRO CONTROLLER)
DTV-S-SCLK R23
DTV-RXD W25
DTV-TXD R22
DTV-SYS-RESET A4
AL+2.8V 2
SYS-RESET R25
V25
SUB-RXD
SUB-TXD W26
SUB-SCLK P22
RDY B4
IC501
CLK 27 IN L1 4
DVD MAIN BOARD
CN502-D CN1801
5 DTV-S-SCLK 5
4 DTV-RXD 4
3 DTV-TXD 3
2 DTV-SYS-RESET 2
X501
12MHz
X'TAL
X502
32KHz
RESONATOR
IC107
RESET 1
CN701 CN1502
27 SYS-RESET 27
Q517
30 SUB-RXD 30
28 SUB-TXD 28
26 SUB-SCLK 26
Q516
29 RDY 29
X501
27MHz
2
X'TAL
IC501
(SUB MICRO CONTROLLER)
DVD-AUDIO-MUTE 26
AUDIO-MUTE 29
SC-AUDIO-MUTE 30
25 1V2CONT DVD-SC2-AUDIO-MUTE 24
59 POW-SW
60 REG-CONT
39 X OUT
38 X IN
36 XC OUT
35 XC IN
63 SYS-RESET
66
SUB-RXD
65 SUB-TXD
67 SUB-SCLK
64 RDY
KEY-1 7 KEY SWITCH
KEY-2 8
BOARD AV
1-13-2
NOTE: BOARD MEANS PRINTED CIRCUIT BOARD.
DVD-AUDIO-MUTE
AUDIO-MUTE
SC-AUDIO-MUTE
DVD-SC2-AUDIO-MUTE
CN1504
5 VCR-LED
6 DVD-LED
DVD-LED
VCR-LED
POWER-LED
D672
POWER
CN1505
CN1601
3 POWER-LED 3 1
2 POWER-SW 2 2 SW674
P-ON+5V
POWER
BOARD POWER SWITCH
JP278
S-INH
CN1504 CN3011 CN3012
9 KEY-2 9 KEY SWITCH
BOARD FUNCTION
TO AUDIO SELECTOR
BLOCK DIAGRAM
BOARD FUNCTION
ECO+5V
D3405
VCR
D3403
CN3011 DVD
5
6
TO SERVO/SYSYTEM
CONTROL
BLOCK DIAGRAM
KEY SWITCH
CN3003
1 KEY-2 1
BOARD SWITCH
E9TK5BLSS