Read Sharp LC-40F22E Service Manual online
TABLE OF CONTENTS
1.
INTRODUCTION...................................................................................................................... 4
1.1.
1.1.
General Block Diagram.................................................................................................. 5
1.2.
MB61 Placement of Blocks............................................................................................ 6
1.
TUNER(TU102)......................................................................................................................... 7
1.1.
1.1.
General description of Samsung DTOS403LH121B: .................................................... 7
1.2.
Features of DTOS403LH121B: ..................................................................................... 7
1.3.
Pinning: .......................................................................................................................... 8
2.
SAW FILTER – Audio – Epcos K9656M(Z101) ...................................................................... 9
2.1.
2.1.
Standart........................................................................................................................... 9
2.2.
Features .......................................................................................................................... 9
2.3.
Pin configuration ............................................................................................................ 9
2.4.
Frequency response ........................................................................................................ 9
3.
SAW FILTER – Video – Epcos K3958M(Z102) .................................................................... 10
3.1.
3.1.
Standart......................................................................................................................... 10
3.2.
Features ........................................................................................................................ 10
3.3.
Frequency response ...................................................................................................... 11
4.
AUDIO AMPLIFIER STAGE WITH MAX9736 ................................................................... 12
4.1.
4.1.
General Description...................................................................................................... 12
4.2.
Features ........................................................................................................................ 12
4.3.
Absolute Ratings .......................................................................................................... 13
4.3.1.
Electrical Characteristics.......................................................................................... 13
4.4.
Pinning ......................................................................................................................... 16
5.
POWER STAGE ...................................................................................................................... 17
6.
MICROCONTROLLER – MSTAR(U157) ............................................................................. 19
MSD9WB7GX-LF-2.................................................................................................................... 19
6.1.
MSTAR Block Diagram............................................................................................... 22
6.2.
Reset Circuit................................................................................................................. 23
7.
CI INTERFACE....................................................................................................................... 23
7.1
7.1
Block Diagram ............................................................................................................. 23
7.1
CI Interface Power Switch ........................................................................................... 23
8.
USB INTERFACE ................................................................................................................... 24
9.
DDR2 SDRAM 8M × 4 BANKS × 16 BIT (W9751G6JB) (U154, U155) ............................. 24
9.1.
9.1.
General Description...................................................................................................... 24
9.2.
Features ........................................................................................................................ 25
9.3.
Electrical Characteristics.............................................................................................. 25
9.4.
Pinning ......................................................................................................................... 26
Headphone Amplifier-TDA1308 ................................................................................................. 27
Demodulators ............................................................................................................................... 28
Demodulators ............................................................................................................................... 28
MSB1210 ................................................................................................................................. 28
MSB1222 ................................................................................................................................. 30
CXD2820D............................................................................................................................... 31
MSB1222 ................................................................................................................................. 30
CXD2820D............................................................................................................................... 31
10.
SERVICE MENU SETTINGS............................................................................................. 33
10.1. Video Settings .............................................................................................................. 34
10.2. Audio Settings .............................................................................................................. 35
10.3. Options ......................................................................................................................... 36
10.4. Tuning Settings ............................................................................................................ 38
10.5. Source Settings............................................................................................................. 39
10.6. Diagnostic..................................................................................................................... 40
10.2. Audio Settings .............................................................................................................. 35
10.3. Options ......................................................................................................................... 36
10.4. Tuning Settings ............................................................................................................ 38
10.5. Source Settings............................................................................................................. 39
10.6. Diagnostic..................................................................................................................... 40
10.7.
USB Operations ............................................................................................................ 40
11.
SOFTWARE UPDATE ........................................................................................................ 41
12.
TROUBLESHOOTING ....................................................................................................... 42
12.1.
No Backlight Problem .................................................................................................. 42
12.2.
CI Module Problem ...................................................................................................... 43
12.3.
Led Blinking Problem .................................................................................................. 45
12.4.
IR Problem ................................................................................................................... 46
12.5.
Keypad Touchpad Problems ........................................................................................ 47
12.6.
USB Problems .............................................................................................................. 48
12.7.
No Sound Problem ....................................................................................................... 49
12.8.
No Sound Problem at Headphone ................................................................................ 49
12.9.
Standby On/Off Problem .............................................................................................. 50
DVD Problems ......................................................................................................................... 50
12.10.
No Signal Problem ................................................................................................... 51
13.
PART LIST………………………………………………………………………………...52
1. INTRODUCTION
17MB61 mainboard is driven by MSD9WB7GX-LF-2. This IC is capable of handling Video
and audio processing, Scaling-Display processing, 3D comb filter, OSD and text
processing, LVDS transmitting, channel and MPEG2/4 decoding.
and audio processing, Scaling-Display processing, 3D comb filter, OSD and text
processing, LVDS transmitting, channel and MPEG2/4 decoding.
TV supports PAL, SECAM, NTSC colour standards and multiple transmission standards
as B/G, D/K, I/I’, and L/L’ including German and NICAM stereo. Also DVB T, DVB-C are
supported external demodulators.
as B/G, D/K, I/I’, and L/L’ including German and NICAM stereo. Also DVB T, DVB-C are
supported external demodulators.
Sound system output is supplying max. 2x8W (10%THD) for stereo 8Ω speakers.
Supported peripherals are:
1 RF input VHF I, VHF III, UHF @ 75Ohm(Common)
1 Side AV (CVBS, R/L_Audio)
2 SCART socket(Common)
1 YPbPr (Common)
1 PC input(Common)
4 HDMI 1.3 input(2 HDMI inputs are common, 4 inputs are optional)
1 S/PDIF output(Common)
1 Headphone(Common)
1 Common interface(Common)
2 USB(Common)
1 DVD(Optional)
1 On-board Keypad(Optional)
1 External Keypad(Optional)
1 External TouchPad(Optional)
1 Side AV (CVBS, R/L_Audio)
2 SCART socket(Common)
1 YPbPr (Common)
1 PC input(Common)
4 HDMI 1.3 input(2 HDMI inputs are common, 4 inputs are optional)
1 S/PDIF output(Common)
1 Headphone(Common)
1 Common interface(Common)
2 USB(Common)
1 DVD(Optional)
1 On-board Keypad(Optional)
1 External Keypad(Optional)
1 External TouchPad(Optional)