Lenovo Y27g RE, Service Manual

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29
R122
2.2K1/16W
R123
2.2K1/16W
C546
220nF50V
R573 1K
R575
100OHM
BI
8,15,16
BI
8,15,16
BI
8,15,16
R150 f rom NC change to
0_ohm - 20140107
BI
8,15,16
3V3
GND
IN
2
3V3
GND
GND
BI
10
OUT
16
IN
2,8
IN
2,10,16
IN
10
BI
10
3V3
1V2
3V3
GND
GND
GND
GND
GND
GND
GND
1V2_DPIN
3V3_DPIN
U109 f ootprint change to:
SOP8-P-6_2-1_27 f or
A llegro
C545
NC/1uF 25V
EE_2V5
EEPROM_WP_HDCP
EE_SDA
C543
1uF 25V
EE_SCL
EE_SDA
1V2_DPIN_PWR_BLEED
0.400 0.5A
1V2_DPIN_PWR_BLEED_DRIVE
1V2_DPIN_PWR_EN_GATE
1V2_DPIN_PWR_EN_DRIVE
1V
2_
DP
IN
_P
W
R
_E
N_
N
0.5A
3V3_DPIN_PWR_EN_GATE
3V3_DPIN_PWR_BLEED
0.400
3V3_DPIN_PWR_EN_N
DP_ENABLE_OD
DP
_S
T
D
P
432
8_
P
W
R_
E
N
EE_3V3_DISPIN_SDA
EE_3V3_DISPIN_SCL
EE_2V5
EE_3V3_SCL
EE_3V3_SCL
EE_3V3_SCL_I2CEXP
EE_3V3_SDA
C409
1uF 25V
EE_3V3_SDA_I2CEXP
GPIO_DP_HDMI_SEL
GPIO_EXP_RSTN
GPIO_IRQ[5]
HDMI_NOCLK_N
C544
NC/1uF 25V
Bridge both I2C busses for Prod.
Use DP_ENABLE_OD and
bypass R
NOTSTUFF for bypass
bypass R
controls the power
EE_2V5 or DP_ENABLE_OD
HDMI to DP Input 3.3v Load Switch
HDMI_NOCLK_N paths for debug/DYA
HDMI to DP Input 1.2v Load Switch
STUFF 3V3 Pull-up
0x20 (0x40 8-bit)
CYA I2C Bus Breakouts
STUFF EE_2V5 0-ohm and
NO-STUFF 3V3 Pull-up
FOR POWER UP BY DEFAULT:
NO-STUFF EE_2V5 0-ohm and
NOTSTUFF for bypass
and its ancillaries.
HDMI to DP translator
up/down of the STDP2600
FOR HDMI CLOCK DETECT CONTROL:
Q506
MOSFET
3
1
2
Q507
MOSFET
3
1
2
Q509
MOSFET
3
1
2
U402
TCA6408ARSVR
RST
1
P0
2
P1
3
P2
4
P3
5
GND
6
P4
7
P5
8
P6
9
P7
10
INT
11
SCL
12
SDA
13
VCCP
14
VCCI
15
ADDR
16
EE_SDA
EE_SCL
EEPROM_WP_HDCP
Q505
MOSFET
3
1
2
Q503
MOSFET
3
1
2
R581
100OHM
R568
0R05 OHM
R446
3K 1/16W 1%
3.01k 1% will be
new part
R570
NC/0R05 OHM
C410
47pF 50V
R118
4.7K1/16W
R147 0R05 OHM
R569
NC/0R05 OHM
U107
M24C16-RMN6TP
NC
1
NC
2
NC
3
VSS
4
SDA
5
SCL
6
WC
7
VCC
8
J102
CONN
1
2
3
4
5
Q101
2N7002K
Q102
2N7002K
R148 0R05 OHM
EE_3V3_SDA
R448
0R05 OHM
R449 0R05 OHM
R447
0R05 OHM
R146 0R05 OHM
+5V
R119
NC/1K 1/16W 5%
Q504
AO3401A
R117
4.7K1/16W
R121
0R05 OHM
C127
220N 10V
3V3
GND
GND
GND
IN
2,9
IN
2
IN 2,9
IN 2,9
IN
2,9
IN
9
IN 9
R574
NC/0R05 OHM
OEM MODEL Size
Rev
Date Sheet of
TPV MODEL
PCB NAME
称爹
T P V ( Top Victory Electronics Co . , Ltd. )
Key Component
絬 隔 瓜 絪 腹
A
Custom
7 11 Thursday , March 24, 2016
715G8134-M0A-000-0060
<
称爹
>
07_Input Power Control and I2
R579
NC/0R05 OHM
R450
0R05 OHM
R451 0R05 OHM
R577 100K 1%
R576
10K
R578 0R05 OHM
EE_SCL
R571
NC/10K
C405
100NF 25V
R572 10K
EE_2V5
R120
0R05 OHM
R580
10K 1/16W
Q508
AO3404
BI
8,15,16
BI
8,15,16
EE_3V3_SCL
EE_3V3_SDA