Toshiba 20HL85 Service Manual page 44

A B
8
FROM/TO INTERFACE
VDD5
7
EEPROM IC
IC3608
0
A0
0
A1
5.0
A2
0
GND
GND
6
VDD3
CSCL
5
CSDA
MUTE-H
H_INT
V-SYNC
RXT_RST#
R3611
MCLK
33
SCK
4
SDO
WS
3
DAC_A-L
DAC_A-R
2
+12V
1
A B
G-29
C
MICON2 SCHEMATIC DIAGRAM
BR24L32F-WE2
5.0
VCC
0
WP
4.6
SCL
4.6
SDA
UC_SCL
UC_SDA
C3642
15P CH
4.6
D D 4.6
3.3 3.3
G G
BUFFER BUFFER C3643
Q3605 Q3606
3.0 S 3.0 S
2SK3018T106 2SK3018T106
15P CH
C3661
B3608
HCB2012K-600T25
16V 22 KA
R3636
4.7K
R3675
5.6K
R3674 C3682
5.6K
R3613
10K
AUDIO_DAC
IC3607
CS4334-KSZR
1.0
2.3
SDATA AOUTL R3614
1.0 5.0
C3681
10K
SCLK VA
0.1 F
1.7 0
LRCLK AGND
2.3
1.6
MCLK AOUTR
CAUTION: DIGITAL TRANSISTOR
CAUTION: DIGITAL TRANSISTOR
C
D E
(HD-MI PCB)
W818
D3613
UDZS3.3B
D3609
UDZS3.3B
NC
NC NC
4.9 3.0 5.0 2.5 5.0 1.24 4.9 0 4.6 4.6
11 10 9 8 7 6 5 4 3 2
2.7
5.0
2.7
X2 12 RX2_INT NC 44
2.4
X1 13 AKM_SMUTE NC 43
0
GND
HDMI MICON IC
1.2
IC3611
NC NC
SST89E58RD2-40-C-TQJE
W807 0
MUTE_CTL
5.0
NC VIDEO_SEL 21 NC AKM_ACKS 35
5.0
AUDIO_SEL 22 NC RX2_RST 34
5.0
NC
1.3
NC
23 24 25 26 27 28 29 30 31 32
5.0 5.0 5.0 5.0 1.5 1.4 5.0 0 3.4 0
NC NC NC NC NC NC NC NC
C3646
0.1 F
C3683
1 F
B3609
1 F
HCB2012K-600T25
R3661
10K
C3667
0.0015 B
C3663 R3655 R3657
0 6.0 6.0 6.0
1 F 10K
10K
4 3 2 1
-
+
+
-
5 6 7 8
C3664 R3656 R3658
5.9 6.0 6.0 1.2
1 F 10K 10K
C3668
0.0015 B
R3662
10K
NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
D E
F G
NC
0
1
5.0
NC
5.0
NC
SW IC
5.0
IC3612
H_SYNC NC
SN74AHC1G08DCKR
0
0 0
R3648 33
V_SYNC GND
Y
5.0
5.0
R3647 10K
R3650
PROGRAM
B
0
10K
0
5.0
NC NC
R3632 4.7K
VCC
5.0
A
VCC
5.0
AKM_PD
3.3
RX1_RST
5.0
0
R3652 R3654
4.7K 4.7K
33
5.0
R3649
R3653
4.7K
4.7K
W806
C3675
R3663
1K 25V 10 KA
0
R3667
MUTE_SW
-2.0 Q3610
1K
-2.0 KTC3875S_Y_RTK
C3673
R3665
25V 10 KA 100
5.0 -2.0
MUTE_SW
Q3608 5.0
KRA101SRTK
C3674
R3666
25V 10 KA 100
-2.0
MUTE_SW
R3668
Q3611
KTC3875S_Y_RTK
-2.0
1K
C3676 0
R3664
5.0
1K 25V 10 KA
MUTE_SW
0
Q3609
0
KRC104SRTK
NOTE:THE DC VOLTAGE AT EACH PART WAS MEASURED
WITH THE DIGITAL TESTER WHEN THE COLOR BROADCAST
WAS RECEIVED IN GOOD CONDITION AND PICTURE IS NORMAL.
F G
H
8
CP3604
A2001WR2-9P
VCC 1
RX 2
TX 3
7
EN 4
GND 5
NC NC 6
H_INT
NC NC 7
UC_SCL 8
UC_SDA 9
6
V-SYNC
AKM_PD#
RXT_RST#
5
AKM_ACKS
AKM_DIF0
AKM_SMUTE
4
DAC_A-L
45
3
46
DAC_A-R
2
PCBDJ0
CED011
1
H
G-30