LG 42LV4400, Руководство по обслуживанию

Страница: 125 / 137

5
5
4
4
3
3
2
2
1
1
D D
C C
B B
A A
MODEL
Sheet
REV:
of
CIRCUITY
PCB REV:
PCB FILE :
PCB P/ N:
ECN NO:
TECHNOLOGY
APPROVED BY:
CHECKED BY:
SCH FILE :
DATE:
DESIGN BY:
MODIFY HISTORY
47LV4400(364705220150)
17 17
017122714132.BRD
2.0
2.0 364213320150_PCN0000627.DSN
017122714132
Monday, August 29, 2011
42LV4400(364213320150)
PCN0000627 / PCN0000637
MODEL
Sheet
REV:
of
CIRCUITY
PCB REV:
PCB FILE :
PCB P/ N:
ECN NO:
TECHNOLOGY
APPROVED BY:
CHECKED BY:
SCH FILE :
DATE:
DESIGN BY:
MODIFY HISTORY
47LV4400(364705220150)
17 17
017122714132.BRD
2.0
2.0 364213320150_PCN0000627.DSN
017122714132
Monday, August 29, 2011
42LV4400(364213320150)
PCN0000627 / PCN0000637
MODEL
Sheet
REV:
of
CIRCUITY
PCB REV:
PCB FILE :
PCB P/ N:
ECN NO:
TECHNOLOGY
APPROVED BY:
CHECKED BY:
SCH FILE :
DATE:
DESIGN BY:
MODIFY HISTORY
47LV4400(364705220150)
17 17
017122714132.BRD
2.0
2.0 364213320150_PCN0000627.DSN
017122714132
Monday, August 29, 2011
42LV4400(364213320150)
PCN0000627 / PCN0000637
DATE
2010/10/12
History
Randy update :
1.Page1 :move CE2 behine F2
5.Page8 :FB13 from 47 ohm change to 150 ohm
8.Page16 :reverse panel setting modify TR115 NC-->0
、
TR119 0-->NC
、
TR116 0-->NC
、
TR120 NC-->0
2.Page7 :Simplify HDMI power circuit DEL D54
、
D57
、
C208
、
C191
、
C190
3.Page7 :simplify HPD circuit DEL R393
、
R344
、
Q49
、
R379
、
R341
、
Q48
、
R382
、
R308
、
Q39
4.Page12 :add gpio control line out mute function(add R329
、
D28)
6.Page9 :D22 NC-->LL4148WP (speed up MOS turn off time)
7.Page9 :TR10 18K-->NC
9.Page10 :SPDIF power from HDMI_5V change to AV33
10.Page11 :R210 pull high power change to VGA_PLUGPWR
2010/10/15
Randy update :
1.Page16 :supply enough wheeling current to avoid TPS65168 to go into short curcit protection.
(ADD TR150
、
TD1)
2.Page7 :change other I2C bus avoid scramble with EEPROM(24C16)
。
ADD R341
、
R344
3.Page14 :change J14 footprint
4.Page14 :KEY PAD path and voltage modify,R365,R370(24K ohm ->0 ohm); R396,R395(47K ohm ->1.6K 1% ohm)
2010/10/20
Randy update :
1.Page14 :modify LED backlight PWR circuit(Add R360
、
ZD23
、
C71)
2010/10/26
Brandon update :
1. CE1, CE2, CE10, CE11, CE12, CE13, CE14, CE15, CE16, CE17, CE18, CE20, CE23, CE25, CE31, CE77, CE124,
CE129, CE130, CE131, CE132 change SMD type to DIP type.(Page 1, 2, 3, 5, 13)
2.Page14 :Modify power indicator power LED_PWR --> +5V_TUNER, delete R360, ZD23, C71
3.Page 1 :Add R11
Brandon update :
2.Page1&15: Modify PWM_DIM net name
2010/10/30
Brandon update :
1.Page14: Modify key pad circuit; change J3&J9 90'-->180'
2.Page1: Delete H11
3.Page12: Modify line out driver circuit
2010/11/1
1.Page7: Modify HDMI power circuit add D54
、
D57
、
C208
、
C191
、
C190
2010/11/2
Brandon update :
1.Page12: Modify line out driver power(Add L82, C567, C569, CE135, R837, CE133, C570, ZD8, R874, CE134,
C568)
2010/11/3
Randy update :
1.Page16 : TR150 change to 620ohm, add TR151(620ohm),TR102 change to 2Kohm,TR99
、
TR100 change to 30ohm
TR120 change to 330ohm, TQ1
、
TQ3 change parts
2.Page12: CE132 change to C556, CE134 change to C571
3.Page13: CE131 change to C555
2010/11/5
Randy update :
1.Page13: Mute circuit add D29
2.Page14: Modify R358 placement