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Model
LC-26D44E (serv.man6)
Pages
24
Size
1.64 MB
Type
PDF
Document
Service Manual
Brand
Device
TV / LCD / Major IC Informations
File
lc-26d44e-sm6.pdf
Date

Sharp LC-26D44E (serv.man6) Service Manual ▷ View online

LC-26D44E/S/RU-BK/GY
5 – 5
• HDCP Built in Self Test (BIST) lowers cost to test HDCP operation.
• Pre-programmed HDCP keys provide highest level of key security, simplifies manufacturing.
Pin No.
Pin Name
I/O
Pin Function
Digital Video Output Pins.
144, 143, 142, 141, 140, 137, 136, 133, 132, 131, 
130, 129, 126, 125, 124, 123, 119, 118, 117, 116, 
113, 112, 111, 110
Q0-23
O
24-bit Output Pixel Data Bus.
1
DE
O
Data enable.
2
HSYNC
O
Horizontal Sync Output control signal.
3
VSYNC
O
Vertical Sync Output control signal.
121
ODCK
O
Output Data Clock.
Digital Audio Output Pins.
97
XTALIN
I
Crystal Clock Input.
96
XTALOUT
O
Crystal Clock Output.
88
MCLKOUT
O
Audio Master Clock Output.
86
SCK
O
I2S Serial Clock Output.
85
WS
O
I2S Word Select Output.
84
SD0
O
I2S Serial Data Output.
78
SPDIF
O
S/PDIF Audio Output.
77
MUTEOUT
O
Mute Audio Output.
Configuration/Programming Pins.
104
INT
O
Interrupt Output.
102
RESET#
I
Reset Pin. Active LOW.  5V Tolerant.
32
DSCL0
I
DDCI2C Clock for Port 0.  5V Tolerant.
31
DSDA0
I/O
DDCI2C Data for Port 0.  5V Tolerant.
30
DSCL0
I
DDCI2C Clock for Port 1.  5V Tolerant.
29
DSDA1
I/O
DDCI2C Data for Port 1.  5V Tolerant.
28
CSCL
I
Configuration I2C Clock.  5V Tolerant.
27
CSDA
I/O
Configuration I2C Data.  5V Tolerant.
103
SCDT
O
Indicates active video at HDMI input  port.
107
CLK48B
I/O
Data Bus Latch Enable.
34
R0PWR5V
I
Port 0 Transmitter Detect. 5V Tolerant.
33
R1PWR5V
I
Port 1 Transmitter Detect. 5V Tolerant.
101
RSVDL
I
Reserved, must be tied LOW.
56
RSVD_A
Reserved Pin, leave unconnected.
6, 7, 8, 10, 11, 12, 13, 14, 17, 18, 19, 20, 81, 82, 
83, 87, 93, 100
NC
---
No internal connection.
9
EVNODD
O
Indicates. Even or Odd field for interlaced formats. Polarity pro-
grammable in register.
Differential Signal Data Pins.
40
R0XC+
I
HDMI Port 0. TMDS input clock pair.
39
R0XC-
I
44
R0X0+
I
HDMI Port 0. TMDS input data pair.
43
R0X0-
I
48
R0X1+
I
HDMI Port 0. TMDS input data pair.
47
R0X1-
I
52
R0X2+
I
HDMI Port 0. TMDS input data pair.
51
R0X2-
I
59
R1XC+
I
HDMI Port 1. TMDS input clock pair.
58
R1XC-
I
63
R1X0+
I
HDMI Port 1. TMDS input data pair.
62
R1X0-
I
67
R1X1+
I
HDMI Port 1. TMDS input data pair.
66
R1X1-
I
71
R1X2+
I
HDMI Port 1. TMDS input data pair.
70
R1X2-
I
Power and Ground Pins.
22, 23, 35, 74, 79, 92, 105, 114, 128, 139
CVCC18
---
Digital Logic VCC.
21, 24, 36, 73, 80, 91, 106, 115, 127, 138
CGND
---
Digital Logic GND.
5, 16, 26, 76, 89, 109, 122, 134
IOVCC
---
Input/Output Pin Supply(3.3V).
4, 15, 25, 75, 90, 108, 120, 135
IOGND
---
Input/Output Pin Ground.
38, 42, 46, 50, 57, 61, 65, 69
AVCC
---
TMDS Analog VCC.
41, 45, 49, 53, 60, 64, 68, 72
AGND
---
TMDS Analog GND.
37
PVCC0
---
TMDS Port 0 PLL VCC.
55
PVCC1
---
TMDS Port 1 PLL VCC.
LC-26D44E/S/RU-BK/GY
5 – 6
7. IC2302 (RH-IXC009WJZZQ)
The RH-IXC009WJZZQ is a high-speed and high-performance 8-bit single-chip microcomputer with a built-in 61440-byte flash memory.
In this equipment, the R/C LED on the AVC side and system on the display side are controlled.
54
TMDSPGND
---
TMDS PLL GND.
94
AUDPVCC18
---
ACR PLL VCC.
95
AUDPGND
---
ACR PLL GND.
98
XTALVCC
---
ACR PLL Crystal Input VCC.
99
REGVCC
---
ACR PLL Regulator VCC.
Pin No.
Pin Name
I/O
Pin Function
1
GND
---
Ground.
2
8MHz_IN
I
Crystal oscillator input.
3
8MHz_OUT
O
Crystal oscillator output.
4
TEST
I
Terminal for shipping test. Fixed to “L” level.
5
3.3V
---
Power supply (+3.3V).
6
FRC_BUS_SW
O
N.C.
7
32kHz_OUT
O
N.C.
8
RESET
I
RESET input terminal.
9
P20
---
N.C.
10
P00
---
N.C.
11
UART-RXD1
I
For flash write.
12
UART-TXD1
O
For flash write.
13
CEC-IN
I
CEC.
14
P04
I
N.C.
15
P05
O
N.C.
16
CEC-OUT
O
N.C.
17
CEC-IN2
I
N.C.
18
VAREF
---
Power supply (+3.3V).
19
AVDD
---
Power supply (+3.3V).
20
AIN0
I
Temperature sensor.
21
AIN1
I
N.C.
Pin No.
Pin Name
I/O
Pin Function
LC-26D44E/S/RU-BK/GY
5 – 7
22
AIN2
I
N.C.
23
AIN3
I
N.C.
24
AC_DET
I
Power supply detection.
25
ANT_ERR
I
ANT5V short detection.
26
BL_ERR
I
Backlight detection.
27
SV1JSW
I
S-terminal detection.
28
QS_EN
O
Panel controller QS.
29
FRAME
O
50/60Hz select.
30
T1
I
Panel controller TEMP.
31
T2
I
Panel controller TEMP.
32
T3
I
Panel controller TEMP.
33
BANK_SEL
O
Panel controller
34
R/L
O
Panel controller. Flip horizontal.
35
U/D
O
Panel controller. Flip vertical.
36
EXT_DTV
O
DTV_etc. select (H,V,Audio)
37
HDMI_PC
O
HDMI-PC select (H,V,Audio)
38
SCART12
O
SCARTselect.
39
PE
O
Panel enable.
40
HP_MUTE
O
Mute. Headphono.
41
ANT+5V_SW
O
ANT+5V control
42
DTN_BUS_SEL
O
D-TUNER I2C select
43
DTM_RST
O
DTV PWB reset
44
TCON_WP
O
Counter adjustment write-protect
45
LVDS_EN
O
N.C
46
CONT_DET
---
N.C
47
PS_ON
O
Power_on.
48
PCON1
O
DC-DC_on.
49
TEST
O
N.C
50
LCD_POW
O
N.C
51
12V_DET
O
LCD_12V detection.
52
SCL
I
I2C Slave clock
53
SDA
I/O
I2C Slave data
54
I-REQ
O
Sub-microprocessor interrupt
55
SCL_F
I
N.C. (Pull-up)
56
SDA_F
I/O
N.C. (Pull-up)
57
LEDPOW_R
O
Power R_LED ON.
58
LEDPOW_G
O
Power G_LED ON.
59
LEDSLP
O
N.C.
60
LEDOPC
O
N.C.
61
MUTE_SP
O
Mute.
62
S_MUTE
O
Mute.
63
S2_MUTE
O
Mute SCART2.
64
IREM_SW
O
N.C.
Pin No.
Pin Name
I/O
Pin Function
LC-26D44E/S/RU-BK/GY
5 – 8
8. IC2701 (VHiYDA147SZ-1Y)
High-efficiency digital audio power amplifier IC with maximum power output of 20W (Vddp=14V, RL=4
Ω) x 2ch.
It incorporates the “DRC (Dynamic range compression)” function. Since the volume is increased at low volume level and is decreased at high volume
level, it is possible to prevent sudden volume change. It is also provided with the “power limiter” which can set the output limit.
Pin No.
Pin Name
I/O
Pin Function
1, 2, 12, 25, 35, 36
NC
---
No connection.
3
PVDDREG
---
Power terminal for regulator (PVDD).
4
AVDD
---
Output terminal for 3.3V regulator.
5
INLP
I
Analog input terminal (Lch+)
6
INLM
I
Analog input terminal (Lch-)
7
VREF
VREF terminal.
8
INRM
I
Analog input terminal (Rch-)
9
INRP
I
Analog input terminal (Rch+)
10
AVSS
---
GND terminal for analog.
11
PLIMIT
I
Power limit setting terminal.
13, 14
PVDDPR
---
Power terminal for digital amplifier output (Rch+).
15, 16, 17
OUTPR
O
Digital amplifier output terminal (Rch+).
18, 19
PVSSR
---
Ground terminal for digital amplifier output (Rch).
20, 21, 22
OUTMR
O
Digital amplifier output terminal (Rch-).
23, 24
PVDDMR
---
Power terminal for digital amplifier output (Rch-).
26
SLEEPN
I
Sleep control terminal.
27
PROTN
O
Error flag output terminal.
28
MUTEN
I
Mute control terminal.
29
CKOUT
O
Clock output terminal for synchronization.
30
CKIN
I
External clock input terminal.
31
NCDRC0
I
Non-clip/DRC1/DRC2 mode selection terminal 0.
32
NCDRC1
I
Non-clip/DRC1/DRC2 mode selection terminal 1.
33
GAIN0
I
GAIN setting terminal 0.
34
GAIN1
I
GAIN setting terminal 1.
37, 38
PVDDML
---
Power terminal for digital amplifier output (Lch-).
39, 40, 41
OUTML
O
Digital amplifier output terminal (Lch-).
42, 43
PVSSL
---
Ground terminal for digital amplifier output (Lch).
44, 45, 46
OUTPL
O
Digital amplifier output terminal (Lch+).
47, 48
PVDDPL
---
Power terminal for digital amplifier output (Lch+).
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