Mitsubishi Electric WD-57733 Service Manual page 67

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PG 5.....MAIN2 [TUNER/MISC] V36-V37
A
B
C
ANT-RELAY SWITCH TU101
115U4006AM
(Antenna2) Direct Connection
Antenna 24
In
D
25
Cable
1 2 3 4 5 6 7 8 11 12 13 14
In
(Antenna1)
G S
GND
DGND DGND DGNDDGND
L101
BLM21B272S
TP103 TP106
(From MAIN1) 30VS
C101
0.01 C104 C106
50V C102
220 100
10 6.3V 16V
50V
DGND DGND
C103
0.1
25V/16V
TPANTRLY
DGND
E
RT1N436C-T112-1
Q102
(FROM PLD) R119
820
(From MAIN6) 1/16W
ANT-RELAY
Q103
R120
33K
1/16W
DGND
L104
BLM18PG600SN1
5VS
C111
0.1
25V/16V
F
DGND
5VS
5v
C105
1U
16V
R103
2.2K
1/16W
AFT-H
DGND
G
R101 8 7 6 5
3.3K
1/16W
DGND
1 2 3 4
R104
2.2K
1/16W
AFT-L
DGND
R102
3.3K IC102
1/16W
MAX4232AKA+T
TO SH1 RA
Controoled by X226
DGND
(To MAIN4)
AFT
AFT-H,AFT-L
H
I
J
K
4 5 6
23
22
15 16 17 18 19 20 21
C109
1/16W
DGND DGND 0.1
100
16V R113 IF+
TP102
GND
1/16W
IF-
100
TP104 C110 R114
FOR FCC 0.1
TESTING 16V
R108
0
1/16W
L103
BLM21B272S
C108 TPTUV
0.1
C107 25V/16V R115
100 560
16V 1/16W R116
1/16W
75
DGND
DGND Close to Q101
R112
100
1/16W
Q101
2SA1235A-T112-1E,F
DGND
R125
5.6K
R109
2K 1/16W
1/16W
3.00V
R110
1.3K
1/16W
2.00V
R111
2K
1/16W
DGND
AFTMAIN
D101
RSB6.8S
DGND
7 8 9 10
USB
5VS
USBPWRCTL
Active "H"
3.3VS
R8270
MAIN2
3.3K
R8202
100K 1/16W
1/16W
USB-OVRCUR
USBNA,USBNB,USBPA,USBPB 1
USB
3
R8269
82
1/16W
4
TUNER C8266 R8268
1U 220
10V/16V 1/16W
RC=82us 1.05A
DGND
R8206
0
USBNA 1/16W
R8205
0
1/16W
USBPA
D-IF+
}
(To MAIN4)
D-IF-
IF-AGC (From MAIN4)
I2CDATB
}
(From MAIN4)
I2CCLKB
TUNER-VIDEO (To MAIN1)
RTC
SIF-IN (To MAIN12)
L8280
R8286
BLM18PG600SN1
1M
1/16W
C8280
D8280
47
R8281 MC2838-T112-1
6.3V 560
1/16W
R8282
R8280
100 10
1/16W 1/16W
C8281
Q8280 EECSE0H473
2SA1235A-T112-1E,F
X8201
DMX-26S 32.768KHZ DGND
2 1
IC8280
DS1337U+T&R
1 X1 VCC
3 4
2 X2 SQW/INTB
TP8280
3 INTA SCL
R8201
10K
1/16W
4 GND SDA
DGND
11 12 13
C8201
10uF
6.3V
IC8205
MIC2544-1YM TR
DGND
CTL OUT
8
FLG IN
2 7 3.3VS
GND OUT 6
C8208
ILIM/Gate
NC 5 0.1
25V/16V
TP-USB5V
L8202
221 OHM
1 1
D8204 D8203
MA732 MA732 C8206
1
100 C8207
2 2 R8203 L8206
27 16V 0.1
ACM2012-121-2P
1/16W 25V/16V D1-
2
R8204 S2 P1
27
1/16W D1+
S1 P2
3
L8203 US
R8214 R8212 221 OHM
15K 15K USB-GND1
4
1/16W 1/16W
TP-USBGN
DGND
3.3V
Y-480
MAIN4
C8282
DGND
0.1
25V/16V
PB-480
MAIN4
TP-RTC
DGND
8
R8285 R8287
10K 33
1/16W 1/16W DGND
7 REF-WD
MAIN6
PR-480
6
MAIN4
5
R8284 R8283
100 100
1/16W 1/16W
DGND
CONTENTS
PG 1.....BLOCK PG 15....MAIN8 [1394] V38
PG 2.....POWER PG 16....MAIN9 [SPA2_MAIN]
PG 3.....TERMINAL PG 17....MAIN10 [SPA2_MEM]
PG 4.....MAIN1 [DCDC/IF] PG 18....MAIN11 [TDMS]
PG 5.....MAIN2 [TUNER/MISC] V36-V37 PG 19....MAIN12 [AUDIO]
PG 6.....MAIN2 [TUNER] V38
PG 20....MAIN13 [MICRO]
PG 7.....MAIN3 [HDMI]
PG 21....MAIN14 [FPGA] V38
PG 8.....MAIN4 [CORE] V36-V37
PG 22....MAIN15 [VIDEO_MAIN] V38
PG 9.....MAIN4 [CORE] V38
PG 23....MAIN16 [VIDEO_SUB/MISC] V38
PG 10....MAIN5 [MEMA]
PG 24....MAIN17 [GUIDE] V38
PG 11....MAIN6 [MEMB] V38
PG 25....MISC[CONT/FRONT/LED/HDMI/SBL/PRE-AMP]
PG 12....MAIN7 [ROM/AV] V36-V37
PG 13....MAIN7 [ROM/AV] V38
PG 14....MAIN8 [ADC] V36-V37
14 15 16
CLK
IC8501
ICS443M-41LFT
C8520 R8513 R8514
18 0 1M
1/16W 1/16W
50V
X8501
SMD-49 18.24MHz
XI XO R8518
1 8
33
C8521 L8501 1/16W
15
BLM18PG600SN1
DGND 50V
2 VCC PDTSN 7
C8501 R8501
0
0.1
3 GND CLK2 6 1/16W
25V/16V
L8504
BLM18AG121SN1 AUDADCLK
4 CLK1 CLK3 5 TO MAIN16 & 20
DGND
C8527
5
CLK1 27MHz+ SS 50V
CLK2 12.288MHz
CLK3 24.576MHz DGND
R8517
33 L8511
BLM18AG121SN1
1/16W PLDCLK
TO MAIN 9,10,20
3DYC&IP OUTPUT
R83F1
MAIN13
0 L83F2
1/16W
X240Y
470nH
C83F4
R83F2 C83F7 R83F7
75 47 47 75
50V
1/16W 50V 1/16W
R83F5
0 L83F5 MAIN13
1/16W
X240CB
470nH
C83F5
R83F3 C83F8 R83F8
47
75 47 75
1/16W 50V 1/16W
50V
R83F6
0 L83F6
1/16W MAIN13
X240CR
470nH
C83F6
R83F4 C83F9 R83F9
75 47 47 75
50V
1/16W 50V 1/16W
WD-57733 V36
WD-65733 V36
WD-73733 V36
WD-C657 V36L
WD-57734 V37
WD-65734 V37
WD-73734 V37
WD-Y577 V37L
WD-Y657 V37L
WD-57833 V38
WD-65833 V38
WD-73833 V38
PAGE 5