Lenovo Y27g RE Service Manual page 29

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EE_2V5
2
IN
R117
R118
R119
4.7K1/16W
4.7K1/16W
NC/1K 1/16W 5%
U107
8
VCC
NC
7
WC
NC
EE_SCL
6
2,9
IN
5
SCL
NC
EE_SDA
SDA
VSS
2,9
IN
M24C16-RMN6TP
EEPROM_WP_HDCP
9
IN
R120
U109 f oot print change t o:
0R05 OHM
SOP8-P-6_2-1_27 f or
A llegro
R121
0R05 OHM
GND
R150 f rom NC change t o
0_ohm - 20140107
J102
R447
CONN
0R05 OHM
EE_2V5
1
EE_SCL
2
2,9
IN
EE_SDA
3
2,9
IN
4
EEPROM_WP_HDCP
9
IN
5
GND
3V3
C409
C405
1uF 25V
100NF 25V
R448
0R05 OHM
GND
EE_3V3_SCL_I2CEXP
8,15,16
EE_3V3_SCL
BI
EE_3V3_SDA_I2CEXP
EE_3V3_SDA
8,15,16
BI
R449 0R05 OHM
GPIO_IRQ[5]
2
IN
GPIO_EXP_RSTN
3V3
3.01k 1% will be
R446
new part
3K 1/16W 1%
C410
47pF 50V
GND
CYA I2C Bus Breakouts
Bridge both I2C busses for Prod.
EE_3V3_SCL
8,15,16
BI
EE_3V3_SDA
8,15,16
BI
R451 0R05 OHM
C127
220N 10V
1
R146
0R05 OHM
2
R147
0R05 OHM
3
R148
0R05 OHM
4
3V3
GND
EE_SDA
EE_SCL
Q101
2N7002K
Q102
2N7002K
U402
15
14
VCCI
VCCP
12
SCL
2
GPIO_DP_HDMI_SEL
16
13
P0
3
OUT
SDA
P1
4
P2
11
5
INT
P3
1
7
16
RST
P4
8
ADDR
P5
9
P6
6
10
GND
P7
TCA6408ARSVR
0x20 (0x40 8-bit)
GND
R450
0R05 OHM
EE_3V3_DISPIN_SCL
EE_3V3_DISPIN_SDA
EE_3V3_SDA
8,15,16
BI
EE_3V3_SCL
8,15,16
BI
R122
2.2K1/16W
R123
2.2K1/16W
EE_2V5 or DP_ENABLE_OD
controls the power
up/down of the STDP2600
HDMI to DP translator
and its ancillaries.
R568
0R05 OHM
EE_2V5
2,8
IN
R569
NC/0R05 OHM
DP_ENABLE_OD
2,10,16
IN
R570
NC/0R05 OHM
HDMI_NOCLK_N
10
IN
FOR HDMI CLOCK DETECT CONTROL:
STUFF EE_2V5 0-ohm and
NO-STUFF 3V3 Pull-up
FOR POWER UP BY DEFAULT:
NO-STUFF EE_2V5 0-ohm and
STUFF 3V3 Pull-up
Use DP_ENABLE_OD and
HDMI_NOCLK_N paths for debug/DYA
10
BI
10
BI
29
3V3
3V3
HDMI to DP Input 3.3v Load Switch
R571
NC/10K
C543
1uF 25V
R572 10K
Q504
AO3401A
C545
NC/1uF 25V
NOTSTUFF for bypass
3V3_DPIN_PWR_EN_GATE
3V3_DPIN_PWR_EN_N
Q503
R573 1K
R574
MOSFET
1
NC/0R05 OHM
bypass R
GND
GND
1V2
HDMI to DP Input 1.2v Load Switch
+5V
R576
R577 100K 1%
10K
1V2_DPIN_PWR_EN_GATE
R580
NOTSTUFF for bypass
10K 1/16W
R578 0R05 OHM
Q506
1V2_DPIN_PWR_EN_DRIVE
MOSFET
1
Q507
1
MOSFET
R579
bypass R
NC/0R05 OHM
GND
1V2_DPIN_PWR_BLEED_DRIVE
GND
GND
T P V ( Top
Victory
Electronics
Co . , Ltd. )
絬 隔 瓜 絪 腹
Key Component
07_Input Power Control and I2
Date
Thursday , March 24, 2016
3V3_DPIN
0.400
0.5A
R575
100OHM
3V3_DPIN_PWR_BLEED
Q505
MOSFET
1
GND
1V2_DPIN
C544
NC/1uF 25V
Q508
AO3404
C546
220nF50V
R581
0.400
0.5A
100OHM
1V2_DPIN_PWR_BLEED
Q509
1
MOSFET
GND
OEM MODEL
Size
Custom
TPV MODEL
Rev
A
PCB NAME
715G8134-M0A-000-0060
称爹
<称爹>
Sheet
7
of
11

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