Main Board Assy (6/15) : Vfd/Ir (Sheet No.7); Main Board Circuit Diagram: Mt8555 Vfd/Ir - Pioneer BDP-LX55 Service Manual

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10.6 MAIN BOARD ASSY (6/15) : VFD/IR (Sheet No.7)

A
Main Board Circuit Diagram:MT8555 VFD/IR
B
C
D
E
F
A
6/15
54
1
2
3.3V_STBY
DVCC33_IO_STB
3.3V_STBY
AVDD33_LDO
AVDD10_LDO
C502 C502
NC NC
DVCC33_IO_STB
C503 C503
C504 C504
100P 100P
0.1UF/16V/X7R 0.1UF/16V/X7R
AVDD33_LDO
C500 C500
C506 C506
100P 100P
0.1uF/16V/X7R 0.1uF/16V/X7R
BDP-LX55
2
3
U7D U7D
J21 H24 AO2LRCLK
DVCC33_IO_STB GPIO8
H21
DVCC33_IO_STB
J27
ETCOL
F26 AO2SDATA2
ETCRS
J28
AO2BCK
ETMDC
J26 AO2MCLK
ETMDIO
G26 OPEN_K
ETRXCLK
F25
ETRXD0
G27 AO2SDATA4
ETRXD1
G28 AO2SDATA5
ETRXD2
G25 POWER_K
ETRXD3
J24 E25
AO2SDATA3
AVDD33_LDO ETRXDV
E26
ETRXER
H22 G24 VFD_PW_CTL
AVSS33_LDO ETTXCLK
G23 Play_K
ETTXD0
K21 H23 VCXO_1.65V_CTL
AVDD10_LDO ETTXD1
J23
ETTXD2
H26 R1418 R1418
ETTXD3
H25
ETTXEN_VOUTD14
ETTXEN
F24
ETTXER
J25 UARXD
UARXD
K26 UATXD
UATXD
L25
VSTB
VSTB
M23 VDATA
VDATA
M24 VCLK
VCLK
L26
LCDRD
LCDRD
K25 IR
IR
K23
RESET_
K24 OPWRSB
OPWRSB
MT8555_0825_A MT8555_0825_A
{LCDRD, ETTXEN} = 0 , Normal mode
{LCDRD, ETTXEN} = 1 , RST by SVO mode
{LCDRD, ETTXEN} = 2 , Monitor mode
{LCDRD, ETTXEN} = 3 , Test scan mode
16
ETTXEN_VOUTD14
3
4
R21 R21 33 33
AO2LRCLK_S 16
MCU_RESET
MCU_RESET 16
SD2/DL1
SD2/DL1 14
R16 R16 33 33
AO2BCK_Sii 14
R20 R20 33 33
AO2MCLK_Sii 14
SPDIF2
SPDIF2 16
R14 R14 33 33
AO2SDATA4_S 16
R62 R62 33 33
AO2SDATA5_S 16
R23 R23 33 33
AO2SDATA3_S 16
AO2SDATA1
AO2SDATA1 16
VCXO_1.65V_CTL 5
POWER_K
HDMI-CEC-switch 16
330 330 OPEN_K
B_MUTE 8
AO2SDATA0
AO2SDATA0 14
Play_K
R150 R150 330 330
RESET_ 2
OPWRSB 2
C507 C507
0.1uF/16V/X7R 0.1uF/16V/X7R
FB34 FB34
3.3V_STBY
3.3V_STB
R573 R573
ETTXEN_VOUTD14
LCDRD
4
R R
10 10
10K 10K
R57 R57
10K 10K