Toshiba HD-A2KC Service Manual - Page 23
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4-4-2. Timer Circuit Diagram
CN701
1
5vcpu
R701
2
33
TimwerReset
3
WriteEnable
4
GND
E708
5
33
6
TxD
E709
R706
7
8
RxD
33
3State
9
R705
10
GND
E710
52808-1071
10k
E701
R708
C701
F0.1u
IC701
1
14
VCC
R704
33
2
13
CTS
3
12
4
11
R707
33
5
10
RXD
R709
6
9
10k
7
8
GND
CD74HCT125A
R702
33
TXD
RTS
R710
33
100p
C702
X702
E+5V
SP-T2A
1M
R725
820k
R732
16
15
14
13
12
11
10
9
8
7
6
5
E+5V
SHRST-M5N
SHRST-M5N
17
RSMRST-M5N
RSMRST-M5N
18
R716
PWRBTN-M5N
PWRBTN-M5N
19
10K
KBRST-M5N
KBRST-M5N
20
NC
R720
100
21
USBON0-M5P
USBON0-M5P
R734
100
22
uPD78F0535GB
USBOC0-P5N
USBOC0-P5N
R735
100
23
USBOC1-P5N
USBOC1-P5N
R736
100
24
IC700
RTS(T-E)
R737
33
25
CTS(E-T)
R739
33
26
D-Light-LED
R711
100
27
POWER_ON0
PWR_ON0
R777
33
28
FRONT_MUTE
HMUTE
29
(NON)PONOK-M5P
10K
30
R784
THRM-M5N
THRM-M5N
R712
100
31
Eject-SW
R717
33
32
Power-SW
33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48
100
R779
POWER_GOOD
MMZ1608S601
L701
D_ASP_OUT
MMZ1608S601
L702
RESOLUTION
R781
47k
R780
R782
22k
1k
R783
22k
L704
E753
MMZ1608S601
VOUT
VDD
C726
C724
C722
E754
GND
B0.01u
F0.1u
47uF16V
FL+5V
L707
MMZ1608S601
P_CORE
C745
VMUTE1
F0.1u
R741
100
R719
4.7K
SLP3-M5N
100
R744
PS1240P02AT
4
3
2
1
BZ01
CLK_32K
64
R703
100
R748
BUZZER
63
R771
100
D702
10k
1SS355
PWR_LED
62
100
R785
DRI_CS
61
R759
100
DRU_OUT(T-D)
R762
100
60
DRI_IN(D-T)
R773
100
59
DRISCK
R733
58
100
ONVCC_M5P
ONVCC-M5P
57
S1_ASP
S1_ASP1
56
R713
100
SEL_I/P
Sel_I/P
55
E773
VMUTE2
54
R743
100
E771
CEC
53
R750
100
CVBS/YUVX
52
R772
100
P12V_SEN
51
ON/OFF+5V
P3V_SEN
50
49
GND
E774
4
Power_Key
E775
E+5V
3
Power_LED
E776
2
MMZ1608S601
E+5V
1
L703
E777
F0.1u
F0.1u
C714
C713
VCC3.3V
1
EJECT-SW
D-Light-LED
1K
R746
S1
1K
R756
S2
5
1K
R757
S3
CVBS/YUVX
K2
K1
E+5V
10
EVER5V
R/C
R718
12
100
CN703
52808-1271
CPU+5V
CPU+5V
C720
33
R778
B0.01u(1608)
33
R776
33
R775
33
R774
C718
C719
33
R770
F0.1u
47uF16V
33
R769
33
R768
33
R767
1
39
33
R766
2
38
33
R765
DIN
GR5
37
3
33
R764
STB
GR4
36
4
33
R763
DOUT
GR3
35
R721
1K
5
33
R761
K1
GR2
34
R722
1K
6
33
R760
K2
GR1
R745
33
7
IC705
SG24
OSC
E745
82k(1608)
32
8
PT6324_Q(L)
SG23
GND
E744
31
9
VDD
SG22
E743
30
10
SG1
SG21
E742
11
29
SG2
SG20
E741
12
28
SG3
SG19
E740
13
27
SG4
1SS355
D705
1
E717
E718
22K
15K
R787
-F
CN705
52808-1671
1
F-
14G
13G
12G
5
11G
10G
9G
8G
7G
10
6G
5G
4G
3G
2G
15
1G
16
CN704
52808-2071
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
+F
ON/OFF+5V
E760
L706
VCC+5V
MMZ1608S601
C732
C730
B0.01u
F0.1u
E+6V
E757
C735
C733
F0.1u
100uF16V
E756
R786
VCC+12V
C741
C744
F0.1u
100uF16V
E770
DGND
Fig. 3-4-8