TABLE OF CONTENTS |
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1. |
INTRODUCTION...................................................................................................................... |
5 |
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1.1. |
General Block Diagram.................................................................................................. |
6 |
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1.2. |
MB60 Placement of Blocks............................................................................................ |
7 |
1. |
TUNER(TU102)......................................................................................................................... |
8 |
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1.1. |
General description of Samsung DTOS403LH122X:.................................................... |
8 |
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1.2. |
Features of DTOS403LH122X: ..................................................................................... |
8 |
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1.3. |
Pinning: .......................................................................................................................... |
9 |
2. |
SAW FILTER – Audio – Epcos K9656M(Z101) ...................................................................... |
9 |
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2.1. |
Standart........................................................................................................................... |
9 |
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2.2. |
Features ........................................................................................................................ |
10 |
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2.3. |
Pin configuration .......................................................................................................... |
10 |
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2.4. |
Frequency response ...................................................................................................... |
10 |
3. |
SAW FILTER – Video – Epcos K3958M(Z102) .................................................................... |
11 |
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3.1. |
Standart......................................................................................................................... |
11 |
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3.2. |
Features ........................................................................................................................ |
11 |
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3.3. |
Frequency response ...................................................................................................... |
12 |
4. |
AUDIO AMPLIFIER STAGE WITH AZAD2102(U163, U164) ........................................... |
12 |
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4.1. |
General Description...................................................................................................... |
12 |
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4.2. |
Features ........................................................................................................................ |
13 |
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4.3. |
Absolute Ratings .......................................................................................................... |
14 |
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4.3.1. |
Electrical Characteristics.......................................................................................... |
14 |
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4.3.2. |
Operating Specifications .......................................................................................... |
15 |
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4.4. |
Pinning ......................................................................................................................... |
16 |
5. |
AUDIO AMPLIFIER STAGE WITH TPA3113(U168) ......................................................... |
16 |
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5.1. |
General Description...................................................................................................... |
16 |
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5.2. |
Features ........................................................................................................................ |
17 |
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5.3. |
Absolute Ratings .......................................................................................................... |
17 |
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5.3.1. |
Electrical Characteristics.......................................................................................... |
17 |
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5.3.2. |
Operating Specifications .......................................................................................... |
18 |
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5.4. |
Pinning ......................................................................................................................... |
18 |
6. |
POWER STAGE ...................................................................................................................... |
19 |
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6.1. |
Power Management...................................................................................................... |
22 |
7. |
MICROCONTROLLER – MSTAR(U157) ............................................................................. |
23 |
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7.1. |
General Descripction.................................................................................................... |
23 |
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7.2. |
General Features........................................................................................................... |
24 |
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7.3. |
MSTAR Block Diagram............................................................................................... |
28 |
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7.4. |
Reset Circuit................................................................................................................. |
29 |
8. |
CI INTERFACE....................................................................................................................... |
29 |
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7.1 |
Block Diagram ............................................................................................................. |
29 |
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7.1 |
CI Interface Power Switch ........................................................................................... |
30 |
9. |
T2 Demodulator CXD2820R (U167)....................................................................................... |
30 |
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9.1. |
General Description...................................................................................................... |
30 |
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9.2. |
Features ........................................................................................................................ |
30 |
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9.3. |
Pinning ......................................................................................................................... |
32 |
10. |
USB INTERFACE ............................................................................................................... |
35 |
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11. DDR2 SDRAM 8M × 4 BANKS × 16 BIT (W9751G6JB) (U154, U155) ......................... |
35 |
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11.1. |
General Description...................................................................................................... |
35 |
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11.2. |
Features ........................................................................................................................ |
36 |
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11.3. |
Electrical Characteristics.............................................................................................. |
36 |
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11.4. |
Pinning ......................................................................................................................... |
37 |
12. |
SCALER AND LVDS SOCKETS....................................................................................... |
39 |
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12.1. LVDS sockets Block Diagram ..................................................................................... |
39 |
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12.2. Panel Supply Switch Circuit ........................................................................................ |
39 |
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13. |
NAND FLASH MEMORY - MX25L1005 (U158)............................................................. |
40 |
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13.1. |
General Description...................................................................................................... |
40 |
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13.2. |
Features ........................................................................................................................ |
40 |
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13.3. |
Absolute Maximum Ratings......................................................................................... |
41 |
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13.4. |
Pinning ......................................................................................................................... |
41 |
14. |
NAND FLASH MEMORY – NAND512XXA2C (U162) .................................................. |
42 |
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14.1. |
General Description...................................................................................................... |
42 |
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14.2. |
Features ........................................................................................................................ |
42 |
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14.3. |
Pinning ......................................................................................................................... |
43 |
15. |
USB2.0 to Fast Ethernet – ASIX AX88X72A (U171) ........................................................ |
44 |
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15.1. |
General Description...................................................................................................... |
44 |
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15.2. |
Features ........................................................................................................................ |
44 |
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15.3. |
Block Diagram ............................................................................................................. |
45 |
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15.4. |
Pinning ......................................................................................................................... |
46 |
16. |
LM1117(U175, U180, U181)............................................................................................... |
46 |
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16.1. |
General Description...................................................................................................... |
46 |
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16.2. |
Features ........................................................................................................................ |
46 |
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16.3. |
Applications ................................................................................................................. |
47 |
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16.4. |
Absolute Maximum Ratings......................................................................................... |
47 |
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16.5. |
Pinning ......................................................................................................................... |
47 |
17. |
MP2012 (U176).................................................................................................................... |
47 |
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17.1. |
General Description...................................................................................................... |
47 |
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17.2. |
Features ........................................................................................................................ |
47 |
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17.3. |
Pinning ......................................................................................................................... |
48 |
18. |
RTA8283A (U23, U173)...................................................................................................... |
48 |
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18.1. |
General Description...................................................................................................... |
48 |
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18.2. |
Features ........................................................................................................................ |
49 |
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18.3. |
Pinning ......................................................................................................................... |
49 |
19. |
MP1583 (U174).................................................................................................................... |
49 |
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19.1. |
General Description...................................................................................................... |
49 |
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19.2. |
Features ........................................................................................................................ |
50 |
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19.3. |
Pinning ......................................................................................................................... |
50 |
20. |
FDC642 ................................................................................................................................ |
51 |
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20.1. |
General Description...................................................................................................... |
51 |
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20.2. |
Features ........................................................................................................................ |
51 |
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20.3. |
Pinning ......................................................................................................................... |
51 |
21. |
FDC604P.............................................................................................................................. |
51 |
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21.1. |
General Description...................................................................................................... |
51 |
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21.2. |
Features ........................................................................................................................ |
51 |
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21.3. |
Pinning ......................................................................................................................... |
52 |
22. |
CONNECTORS ................................................................................................................... |
52 |
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22.1. |
SCART (SC1) .............................................................................................................. |
52 |
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22.2. |
HDMI (CN707,CN708) ............................................................................................... |
52 |
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22.3. |
VGA (CN132) .............................................................................................................. |
53 |
23. |
SERVICE MENU SETTINGS............................................................................................. |
54 |
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23.1. |
Video Settings .............................................................................................................. |
55 |
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23.2. |
Audio Settings .............................................................................................................. |
56 |
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23.3. |
Options ......................................................................................................................... |
57 |
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23.4. |
Tuning Settings ............................................................................................................ |
59 |
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23.5. |
Source Settings............................................................................................................. |
60 |
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23.6. |
Diagnostic..................................................................................................................... |
61 |
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23.7. |
USB Operations............................................................................................................ |
61 |
24. |
SOFTWARE UPDATE........................................................................................................ |
62 |
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25. |
TROUBLESHOOTING ....................................................................................................... |
63 |
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25.1. |
No Backlight Problem.................................................................................................. |
63 |
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25.2. |
CI Module Problem...................................................................................................... |
64 |
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25.3. |
Led Blinking Problem .................................................................................................. |
66 |
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25.4. |
IR Problem ................................................................................................................... |
67 |
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25.5. |
Keypad Touchpad Problems ........................................................................................ |
67 |
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25.6. |
USB Problems .............................................................................................................. |
68 |
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25.7. |
No Sound Problem ....................................................................................................... |
69 |
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25.8. No Sound Problem at Headphone ................................................................................ |
69 |
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25.9. |
Standby On/Off Problem.............................................................................................. |
70 |
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DVD Problems ......................................................................................................................... |
70 |
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25.10. |
No Signal Problem ................................................................................................... |
71 |
1. INTRODUCTION
17MB60 mainboard is driven by MStar SOC. 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, integrated DVB-T/C demodulator and media center functionality.
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 internal demoulators of Mstar IC and DVB-T2 is supported with externall demodulator.
Sound system output is supplying max. 2x2,5W ( less 10%THD at max output) with 4Ω speakers or 2x6W for stereo 8Ω speakers.
Supported peripherals are:
1 RF input VHF I, VHF III, UHF @ 75Ohm(Common) 1 Side AV (CVBS, R/L_Audio)
1 SCART socket(Common)
1 YPbPr (Optional)
1 PC input(Common)
2 HDMI 1.3 input(1 HDMI input is common, 1 input is optional) 1 S/PDIF output(Optional)
1 Headphone(Optional)
1 Common interface(Common)
1 USB(Common)
1 DVD(Optional)
1 iPod(Optional)
1 On-board Keypad(Optional)
1 External Keypad(Optional)
1 External TouchPad(Optional)
1.1.General Block Diagram
1.2.MB60 Placement of Blocks
USB |
Keypad |
Nand
Flash
(U162)
CI Connector
Tuner(TU102)
Saw
Filters
YPbPr SAV HP
Speaker
Con.
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DDR2 |
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SCART |
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Main IC |
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Connector |
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External |
RAM |
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(U154) |
(U157) |
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HDMI |
VGA |
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Keyboard |
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Led |
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Connectors |
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Touchboard |
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Con |
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SPI |
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DVD |
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Flash |
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Inv. |
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Connector |
LVDS |
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Ethernet |
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Con |
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Connectors |
DDR2 |
Ethernet |
Connector or |
SPDIF |
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IC |
Adapter DC |
Out |
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RAM |
(U171) |
Input |
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Power Connector |
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(U155) |
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1. TUNER(TU102)
A horizontal mounted and Digital Half-Nim tuner is used in the product, which covers 3 Bands(From 48MHz to 862MHz for COFDM, from 45.25MHz to 863.25MHz for CCIR CH). The tuning is available through the digitally controlled I2C bus (PLL). Below you will find info about the tuner.
In active antenna option, the following circuit are used. ANT_CTRL pin is controlled by microcontroller. If ANT_CTRL is low, ANT_PWR will be low. If ANT_CTRL is high, ANT_PWR will be high.
OVER_CUR_DETECT pin is a monitor for short circuit in antenna. OVER_CUR_DETECT is low, ANT_CTRL will be low, so ANT_PWR will be low. Finally, short circuit protection is done by circuits and microcontroller.
1.1.General description of Samsung DTOS403LH122X:
The Tuner covers 3 Bands(from 48MHz to 862MHz for COFDM, from 45.25MHz to 863.25MHz for CCIR CH). Band selection and Tuning are performed digitally via the I2C bus.
1.2.Features of DTOS403LH122X:
Receiving System: This TUNER is designed to cover the air channels in VHF and UHF, compliant with DVB-T standard. and It covers all Analog channels from 48.25MHz to 863.25MHz
Receiving Channel (Digital, Center frequency): VHF Low CH. E2 ~ S10 ( 50.5MHz ~ 170.5MHz ) VHF High CH. E5 ~ S41 ( 177.5MHz ~ 466 MHz ) UHF CH. E21 ~ E69 ( 474 MHz ~ 858 MHz )
Receiving Channel (PAL, Picture carrier frequency): VHF Low CH. E2 ~ S10 ( 48.25MHz ~ 168.25MHz ) VHF High CH. E5 ~ S41 ( 175.25MHz ~ 463.25MHz ) UHF CH. E21 ~ E70 ( 471.25MHz ~ 863.25MHz )
Intermediate Frequency: Digital(center) DVB-T (36.167 MHz) Digital(center) DVB-C (36.125 MHz) Analog(picture) 38.9 MHz
Input Impedance: 75Ω, Unbalanced
Band Change-Over System PLL Control System
Tuning System
Electronic Tuning System With PLL
Internal(or External) RF AGC function
Built in wideband AGC detector with 6 programmable take-over points
1.3.Pinning:
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Terminal |
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Pin no. |
Name |
Pin Description |
1 |
Ant Power |
Active Antenna Power |
2 |
B+ |
+5V, Supply Voltage (Preamplifier, DC/DC) |
3 |
RF AGC |
RF AGC (internal or external mode) |
4 |
CL |
I2C Serial Clock |
5 |
DA |
I2C Serial Clock |
6 |
BP |
+5V, Supply Voltage (RF Amp, PLL, IF Amp) |
7 |
BT(T.P) |
+33V, within DC/DC circuit |
8 |
AS |
I2C Address Selection of the PLL |
9 |
IF AGC |
Control voltage for the IF AGC |
10 |
IF OUT + |
Output 2 of the IF Amplifier |
11 |
IF OUT - |
Output 1 of the IF Amplifier |
12 |
AIF Output |
IF output of the Analog BroadBand |
2.SAW FILTER – Audio – Epcos K9656M(Z101)
2.1.Standart
B/G
D/K
I
L/L’
2.2.Features
TV IF audio filter with two channels
Channel 1 (L’) with one pass band for sound carriers at 40,40 MHz (L’) and 39,75 MHz (L’- NICAM)
Channel 2 (B/G,D/K,L,I) with one pass band for sound carriers between 32,35 MHz and 33,40 MHz
2.3.Pin configuration
1Input
2Switching input
3Chip carrier - ground
4Output
5Output
2.4.Frequency response
3.SAW FILTER – Video – Epcos K3958M(Z102)
3.1.Standart
B/G
D/K
I
L/L’
3.2.Features
TV IF filter with Nyquist slopes at 33.90 MHz and 38.90 MHz
Constant group delay
Pin configuration:
1Input
2Input - ground
3Chip - carrier ground
4Output
5Output
3.3.Frequency response
4. AUDIO AMPLIFIER STAGE WITH AZAD2102(U163, U164)
4.1.General Description
17MB60 uses two 2,5W Class D Mono Audio Amplifers for from 16” to 24” TVs.
AZAD2102B is a 2.9 Watts (max. can offer 3.0 Watts @ Load = 3Ω,THD=10%,
AVdd=DVdd=5.5Volt)with high efficiency filter-free class-D audio power amplifier in a 1613 mm x 1613 mm wafer chip scale package (WCSP). AZAD2102B uses Currentswitch technology to achieve high performance class-d amplifier that features 0.03% THD, 85% efficiency, –70 dB PSRR, to improve RF-rectification immunity.
AZAD2102B provide a Vibration-Spectrum modulation clock for PWM Output. This vibration frequency is around 10KHZ shift (+/- 5KHZ of Fpwm).
The advantage of the small size package (WCSP) makes AZAD2102B very suitable for mobile phone and PDA device application. And the Class-D amplifier structure let AZAD2102B to have highly efficiency power consumption than Class-AB amplifier. AZAD2102B can shrink the application board, reduce system cost, and external components.
ESD level protection I/O embedded in AZAD2102B. For general applications, doesn’t need to add extra ESD protection device (like Varistors) in application system for AZAD2102B’s I/O.
4.2.Features
CMOS Technology
High Efficiency 85%
High PSRR 70dB at 217Hz
Differential OP-amp Input
AZAD2102B provides Vibration-Spectrum Modulation clock for reduce EMI
Provide Mute function(set Mute_B to GND will go into Mute status)
For the input stage AZAD2102B built-in a 10Kohm resistors (Gain setting=29.5dB)
Maximum Battery Life and Minimum Heat
Efficiency With an 8-Ω Speaker:
3.5 mA Quiescent Current
Output Power at 10% THD
2.85Watts at AVdd=DVdd=5.0Volt, Rload=4Ω
1.45Watts at AVdd=DVdd=3.6Volt, Rload=4Ω
0.30Watts at AVdd=DVdd=3.0Volt, Rload=4Ω
1.75Watts at AVdd=DVdd=5.5Volt, Rload=8Ω
0.87Watts at AVdd=DVdd=3.6Volt, Rload=8Ω
0.41Watts at AVdd=DVdd=3.0Volt, Rload=8Ω
Eliminate Power on and Power-off “Pop” noise
A Fewer External Components
Optimized PWM Output Stage Eliminates LC Output Filter
Internally generate 290 kHz Switching Frequency to eliminate Capacitor and Resistor
Improve PSRR (–70 dB) and Wide Supply Voltage (3.0 V to 5.5 V)
Fully Differential Design Reduces RF Rectification
This chip has been built-in a very strong ESD protection.
System level ESD 4KV (IEC 61000-4-2 ESD Contact Level)
Wafer Chip Scale Package (WCSP)
TSSOP Package with Exposed Pad
4.3.Absolute Ratings
4.3.1.Electrical Characteristics
4.3.2.Operating Specifications
4.4.Pinning
5. AUDIO AMPLIFIER STAGE WITH TPA3113(U168)
5.1.General Description
17MB60 uses a 6W Class D Mono Audio Amplifers for from 26” to 32” TVs. The TPA3113D2 is a 6-W (per channel) efficient, Class-D audio power amplifier for driving bridged-tied stereo speakers. Advanced EMI Suppression Technology enables the use of inexpensive ferrite bead filters at the outputs while meeting EMC requirements. SpeakerGuard™ speaker protection circuitry includes an adjustable power limiter and a DC detection circuit. The adjustable power limiter allows the user to set a "virtual" voltage rail lower than the chip supply to limit the amount of current through the speaker. The DC detect circuit measures the frequency and amplitude of the PWM signal and shuts off the output stage if the input capacitors are damaged or shorts exist on the inputs.
The TPA3113D2 can drive stereo speakers as low as 4 Ω. The high efficiency of the TPA3113D2, 87%, eliminates the need for an external heat sink when
playing music.
The outputs are also fully protected against shorts to GND, VCC, and output-to-output. The short-circuit protection and thermal protection includes an auto-recovery feature.
5.2.Features
6-W/ch into an 8-Ω Loads at 10% THD+N From a 10-V Supply
12-W into a 4-Ω Mono Load at 10% THD+N From a 10-V Supply
87% Efficient Class-D Operation Eliminates Need for Heat Sinks
Wide Supply Voltage Range Allows Operation from 8 V to 26 V
Filter-Free Operation
SpeakerGuard™ Speaker Protection Includes Adjustable Power Limiter plus DC Protection
Flow Through Pin Out Facilitates Easy Board Layout
Robust Pin-to-Pin Short Circuit Protection and Thermal Protection with Auto Recovery Option
Excellent THD+N / Pop-Free Performance
Four Selectable, Fixed Gain Settings
Differential inputs
5.3.Absolute Ratings
5.3.1.Electrical Characteristics
5.3.2.Operating Specifications
5.4.Pinning
6. POWER STAGE
The DC voltages required at various parts of the chassis and panel are provided by a main power supply unit. MB60 chassis can operate with IPS60, IPS16, IPS17, PW26, PW27 as main power supply and also with 12V adaptor.
CN706 is used for IPS60, IPS16 and IPS17 and CN1 is used for PW26 and PW27.
JK9 is used for the adapter option and also CN705 inverter socket or DB32 chassis with CN706 is used to supply backlight.
The power supplies generate 18V, 12V, 5V, 3,3V and 12V, 5V, stand by mode DC voltages. Power stage which is on-chassis generates 5V, 3V3 stand by voltage and 12V, 8V, 5V, 3V3, 2.5V, 1,8V and 1,2V supplies for other different parts of the chassis. Chassis block diagram is indicated below.
The blocks on power block diagram is using dependent to main supply. For PW26 and PW27 just common blocks are enough for proper operation.
For IPS16, IPS17, IPS60 below blocks must work properly.
For adopter case also below blocks are necessary.
Short CCT Protection Circuit
Short circuit protection is necessary for protecting chassis and main IC against damages when any Vcc supply shorts to ground. Protect pin should be logic high while normal operation. When there is a short circuit protect pin shold be logic low. After any short detection, SW forces LEDs on LED card to blink.
6.1.Power Management
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