LG 65UH8500 Service Manual page 75

SMARTCARD_PWR_SEL
+5V_NORMAL
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FIRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS
ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
Copyright 2015 LG Electronics Inc. All rights reserved.
Only for training and service purposes
B-CAS (SMART CARD) INTERFACE
CLKDIV1 CLKDIV2 : F_CRD_CLK
-----------------------------
1 0 CLKIN
+3.3V_NORMAL
R6400 22
JAPAN
JAPAN
L6400
JAPAN JAPAN
BLM18PG121SN1D JAPAN
C6403
C6400
C6401
0.1uF 0.1uF
10uF
16V 16V
10V
JAPAN
C6402
0.1uF
16V
EAN61006001
IC6400
TDA8024TT
CLKDIV1 AUX2UC
1 28
CLKDIV2 AUX1UC
2 27
JAPAN
AR6400
5V/3V I/OUC
33
3 26
PGND XTAL2
4 25
S2 XTAL1
5 24
VDDP OFF
6 23
JAPAN
S1 GND
R6405
7 22
JAPAN
VUP VDD
8 21
PRES RSTIN
9 20
PRES CMDVCC
10 19
I/O PORADJ
11 18
AUX2 VCC
12 17
AUX1 RST
13 16
Place CLK C3 far from C2,C7,C4 and C8
CGND CLK
14 15
JAPAN
C6404
0.1uF
16V
+3.3V_NORMAL
SMARTCARD_DATA
SMARTCARD_CLK
SMARTCARD_DET
SMARTCARD_COMMAND
22
SMARTCARD_VCC
JAPAN
L6401
BLM18PG121SN1D
JAPAN_BCAS_OLD
JAPAN JAPAN
EAG62011601
C6406
C6405
B-CAS SLOT
0.1uF
0.1uF
16V P6400
16V
10057542-1311FLF(B CAS Slot)
VCC
JAPAN
C1
C6407
0.33uF
RST
16V
C2
CLK
C3
RESERVED_1
C4
GND
C5
VPP
C6
JAPAN
R6411
I/O
75
C7
75 ohm in I/O is for short circuit Protection
RESERVED
C8
+3.3V_NORMAL SW1
S1
SW2
R6413 1K
S2
JAPAN
ZD6400
ZD6401
5V
5V
M16
JAPAN B-CAS
PAGE 23
INT CMDVCC : STATUS
---------------------------------
HIGH HIGH CARD PRESENT
LOW HIGH CARD not PRESENT
JAPAN_BCAS_NEW
P6400-*1
10057542-1311FLF..(B CAS Slot)
C1
C2
C3
C4
C5
C6
C7
C8
S1
S2
064.sht
2015.02.09
23 26
LGE Internal Use Only