Toshiba DVR19DTKB2 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
IC107
AL+2.8V RESET
2
SYS-RESET R25
V25
SUB-RXD
SUB-TXD
W26
SUB-SCLK P22
RDY B4
IC501
CLK 27 IN L1 4
DVD MAIN BOARD
IC501
(SUB MICRO CONTROLLER)
25 1V2CONT
59 POW-SW
60 REG-CONT
CN502-D CN1801
5 DTV-S-SCLK 5
4 DTV-RXD 4
3 DTV-TXD 3
2 DTV-SYS-RESET 2
X501
39 X OUT
12MHz
X'TAL 38 X IN
X502
36 XC OUT
32KHz
RESONATOR 35 XC IN
1
CN701 CN1502
27 SYS-RESET 27 63 SYS-RESET
Q517
30 SUB-RXD 30 66
SUB-RXD
28 SUB-TXD 28 SUB-TXD
65
26 SUB-SCLK 26 67 SUB-SCLK
Q516
29 RDY 29 64 RDY
X501
27MHz
2
X'TAL
DVD-AUDIO-MUTE 26
AUDIO-MUTE 29
SC-AUDIO-MUTE 30
DVD-SC2-AUDIO-MUTE 24
CN1505
3
2
JP278
S-INH
KEY-1 7 KEY SWITCH CN1504
KEY-2 8 9
BOARD AV
1-13-2
NOTE: BOARD MEANS PRINTED CIRCUIT BOARD.
DVD-AUDIO-MUTE
AUDIO-MUTE
TO AUDIO SELECTOR
SC-AUDIO-MUTE
BLOCK DIAGRAM
DVD-SC2-AUDIO-MUTE
BOARD FUNCTION
CN1504 CN3011
5 VCR-LED 5
6 DVD-LED 6
DVD-LED
TO SERVO/SYSYTEM
VCR-LED
CONTROL
POWER-LED
BLOCK DIAGRAM
D672
POWER
CN1601
POWER-LED 1 3
POWER-SW 2 2
SW674
P-ON+5V
POWER
BOARD POWER SWITCH
CN3011 CN3012 CN3003
KEY-2
9 KEY SWITCH 1 KEY-2 1
BOARD FUNCTION
ECO+5V
D3405
VCR
D3403
DVD
KEY SWITCH
BOARD SWITCH
E9TK3BLSS