3.1.2 PCB board composition figure and video signal figure
Section Two Unit Circuit Principle
3.2.1 Introduction to laser head
3.2.2 Servo Circuit
3.2.3 Open/Close drive circuit
9
9
9
9
10
10
11
11
11
12
13
13
15
17
3.2.4 Laser power control circuit
3.2.5 CD/DVD Conversion circuit
3.2.6 Main axis control circuit
3.2.7 Decode circuit
3.2.8 Reset circuit
3.2.9 Video circuit
3.2.10 Audio circuit
3.2.11 Mute circuit
3.2.12 Decode circuit voltage regulating
3.2.13 Power circuit
3.2.14 Control panel circuit
3.2.15 XIC circuit
3.2.16 AV output board circuit
Section Three Servicing Cases
3.3.1 Servicing instances
17
18
19
20
22
22
23
24
25
26
27
27
28
30
30
3.3.2 Troubleshooting flow chart
Section Four Waveform diagram
Section Five Function Introduction to IC
3.5.1 function introduction to MT1389E
32
45
50
50
Page 4
3.5.2 function introduction to 4558
64
3.5.3 function introduction to AT24C02
3.5.4 function introduction to VIPer22ADIP
3.5.5 function introduction to AM5888S
3.5.6 function introduction to PT6961(4dv315)
3.5.7 Function introduction to SDRAM
3.5.8 Function introduction to FLASH
3.5.9 Function introduction to LM431A
3.5.10 Function introduction to Pc817
Chapter Four Disassembly and Assembly Process
Chapter Cinque PCB board & Circuit diagram
Section One PCB board
Section Two circuit diagram
65
66
67
69
70
72
72
73
74
75
75
82
Chapter six BOM List
DV313SI Service Manual
7.1.1 Features
7.2.1 PCB board block diagram of the player
7.3.1 Control panel circuit
7.4.1 Servicing instances
7.5.1 PCB board
7.5.2 Circuit diagram
DV314SI Service Manual
8.1.1 Features
8.2.1 PCB board block diagram of the player
8.3.1 Control panel circuit
8.4.1 Servicing instances
89
97
97
98
99
99
101
102
103
103
104
105
105
8.5.1 PCB board
8.5.2 Circuit diagram
108
110
Page 5
DV315SI Service Manual
111
9.1.1 Features
9.2.1 PCB board block diagram of the player
9.3.1 Servicing cases
9.3.2 Troubleshooting flow chart
9.4.1 PCB board
9.4.2 Circuit diagram
111
112
113
114
115
116
Page 6
Chapter One About Maintenance
1.1 Safety precautions
1.1.1 Power supply
When maintenance personnel are repairing DVD players, he should pay special attention to the
power board with 220V AC and 330V DC which will cause hurt and damage to persons!
1.1.2 Precautions for antistatic
Movement and friction will both bring static electricity which causes serious damages to integrated
IC. Though static charge is little, when a limited quantity of electric charge is added to large-
scaleintegrated IC, as the capacitance is very small in the meantime, now the integrated IC is very much
easy to be struck through by static electricity or the performance will decrease. Thus static electricity
prevention is of extraordinary importance. The following are several measures to prevent static
electricity:
1. Use a piece of electric conduction metal with the length of about 2 metres to insert into the earth,
and Fetch the lead wire from the top of the surplus metal and connect to the required static electricity
device. The length and depth of the metal embedded under the earth should be determined according to
the wettability of the local soil. For humid places, it may be shorter, and longer and deeper for dry places.
If possible, it can be distributed and layed in terms of “#” shape.
2. On operating table-board, the antistatic table cushion should be covered and grounded.
3. All devices and equipments should be placed on the antistatic table cushion and grounded.
4. Maintenance personnel should wear antistatic wrist ring which should be grounded.
5. Places around the operating position should also be covered with electric conduction cushion or
Painted with antistatic paint.
1.1.3 Precautions for laser head
1. Do not stare at laser head directly, for laser emission will occur when laser head is working, which
will Hurt your eyes!
2. Do not use wiping water or alcohol to clean laser head, and you may use cotton swab.
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1.1.4 About placement position
1. Never place DVD player in positions with high temperature and humidity.
2. Avoid placing near high magnetic fields, such as loudspeaker or magnet.
3. Positions for placement should be stable and secure.
1.2 Maintenance method
1.2.1 Visualized method
Directly view whether abnormalities of collision, lack of element, joint welding, shedding welding,
rosin joint, copper foil turning up, lead wire disconnection and elements burning up among pins of
elements appear. Check power supply of the machine and then use hands to touch the casing of part of
elements and check whether they are hot to judge the trouble spot. You should pay more attention when
using this method to check in high voltage parts.
1.2.2 Electric resistance method
Set the multimeter in resistance position and test whether the numerical value of resistance of each
point in the circuit has difference from the normal value to judge the trouble spot. But in the circuit the
tested numerical value of resistance is not accurate, and the tested numerical value of integrated IC's
pins can only be used for reference, so the elements should be broken down for test.
1.2.3 Voltage method
Voltage method is relatively convenient, quick and accurate. Set the multimeter in voltage position
and test power supply voltage of the player and voltage of a certain point to judge the trouble spot
according to the tested voltage variation.
1.2.4 Current method
Set the multimeter in current position and test current of the player of a certain point to judge the
trouble spot. But when testing in current method, the multimeter should be series connected in the
circuit, which makes this method too trivial and troublesome, so it is less frequently used in reality.
1.2.5 Cutting method
Cutting method should be combined with electric resistance method and voltage method to use.
This method is mainly used in phenomena of short circuit and current leakage of the circuit. When
cutting the input terminal voltage of a certain level, if voltage of the player rises again, it means that the
trouble lies in this level.
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1.2.6 Element substitution method
When some elements cannot be judged good or bad, substitution method may de adopted directly.
1.2.7 Comparison method
A same good PC board is usually used to test the correct voltage and waveform. Compared these
data with those tested through fault PC board, the cause of troubles may be found.
Through the above maintenance method, theoretical knowledge and maintenance experience, all
difficulties and troubles will be readily solved.
1.3 Required device for maintenance
Digital oscillograph ( 100MHE)
TV set
SMD rework station
Multimeter
Soldering iron
Pointed-month pincers
Cutting nippers
Forceps
Electric screw driver
Terminals connecting cord
Headphone
Microphone
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Section Five Function Introduction to IC
3.5.1 function introduction to MT1389E
1. DESCRIPTION
MT1389E is a cost-effective DVD system-on-chip (SOC) which incorporates advanced features like
MPEG-4 video decoder, high quality TV encoder and state-of-art de-interlace processing.
Based on MediaTek’s world-leading DVD player SOC architecture, the MT1389E is the 3rd generation of
the DVD player SOC. It integrates the MediaTek 2nd generation front-end analog RF amplifier and the
Servo/MPEG AV decoder.
To enrich the feature of DVD player, the MT1389 equips a simplified MPEG -4 advanced simple profile
(ASP) video decoder to fully support the DivX1 Home Theater profile. It makes the MT1389-based DVD
player be capable of playback MPEG-4 content which become more and more popular.
The progressive scan of the MT1389E utilized advanced motion-adaptive de-interlace algorithm to
achieve the best movie/video playback. It also supports a 3:2 pull down algorithm to give the best film effect.
The 108MHz/12-bit video DAC provides users a whole new viewing experience.
2. Key Features
RF/Servo/MPEG Integration
Embedded 6ch Audio DAC
Embedded 2ch Audio ADC for Karaoke
High Performance Audio Processor
High Performance Progressive Video Processor
Support Nero -Digital
High Quality 108MHz/12-bit, 4 CH TV Encoder
3. General Feature lists
(1)Integration DVD player single chip
High performance analog RF amplifier
Servo controller and data channel processing
MPEG-1/MPEG -2/JPEG video
Dolby AC-3/DTS Decoder
Unified memory architecture
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Versatile video scaling & quality enhancement
OSD & Sub-picture
Built-in clock generator
Built-in high quality TV encoder
Built-in progressive video processor
Audio effect post-processor
Built-in 5.1-ch Audio DAC
Built-in 2-ch Audio ADC for Karaoke
(2)High Performance Analog RF Amplifier
Programmable fc
Dual automatic laser power control
Defect and blank detection
RF level signal generator
(3)Speed Performance on Servo/Channel Decoding
DVD-ROM up to 4XS
CD-ROM up to 24XS
(4)Channel Data Processor
Digital data slicer for small jitter capability
Built-in high performance data PLL for channel data demodulation
EFM/EFM+ data demodulation
Enhanced channel data frame sync protection & DVD-ROM sector sync protection
(5)Servo Control and Spindle Motor Control
Programmable frequency error gain and phase error gain of spindle PLL to control spindle motor on CLV
and CAV mode
Built-in ADCs and DACs for digital servo control
Provide 2 general PWM
Tray control can be PWM output or digital output
(6)Embedded Micro controller
Built-in 8032 micro controller
Built-in internal 373 and 8-bit programmable lower address port
1024-bytes on-chip RAM
Up to 2M bytes FLASH-programming interface
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Supports 5/3.3-Volt. FLASH interface
Supports power -down mode
Supports additional serial port
(7)DVD-ROM/CD-ROM Decoding Logic
High-speed ECC logic capable of correcting one error per each P-codeword or Q-codeword
Automatic sector Mode and Form detection
Automatic sector Header verification
Decoder Error Notification Interrupt that signals various decoder errors
Provide error correction acceleration
(8)Buffer Memory Controller
Supports 16Mb/32Mb/64Mb SDRAM
Supports 16-bit SDRAM data bus
Provides the self-refresh mode SDRAM
Block-based sector addressing
(9)Video Decode
Decodes MPEG1 video an d MPEG2 main level, main profile video (720/480 and 720x576)
Decodes MPEG-4 Advanced Simple Profile
Support DivX 3.11/4.x/5.x Home Theater Profile
Support Nero -Digital
Smooth digest view function with I, P and B picture decoding
Baseline, extended -sequential and progressive JPEG image decoding
Support CD-G titles
(10)Video/OSD/SPU/HLI Processor
Arbitrary ratio vertical/horizontal scaling of video, from 0.25X to 256X
65535/256/16/4/2-color bitmap format OSD,
256/16 color RLC format OSD
Automatic scrolling of OSD image
High Definition Compatible Digital (HDCD)
Windows Media Audio (WMA)
Dolby ProLogic II
Concurrent multi-channel and downmix out
IEC 60958/61937 output
PCM / bit stream / mute mode
Custom IEC latency up to 2 frames
Pink noise and white noise generator
Karaoke functions
Microphone echo
Microphone tone control
Vocal mute/vocal assistant
Key shift up to +/- 8 keys
Chorus/Flanger/Harmony/Reverb
Channel equalizer
3D surround processing include virtual surround and speaker separation
(12)TV Encoder
Four 108MHz/12bit DACs
Support NTSC, PAL-BDGHINM, PAL-60
Support 525p, 625p progressive TV format
Automatically turn off unconnected channels
Support PC monitor (VGA)
Support Macrovision 7.1 L1, Macrovision 525P and 625P
CGMS-A/WSS
Closed Caption
(13)Progressive Scan Video
Automatic detect film or video source
3:2 pull down source detection
Advanced Motion adaptive de-interlace
Minimum external memory requirement
(14)Outline
216-pin LQFP package
3.3/1.8-Volt. Dual operating voltages
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4. PIN DESCRIPTION
PIN
191
192
212
213
214
215
216
1 AGND Ground Analog ground
2 DVDA Analog input AC couple input path A
3 DVDB Analog input AC couple input path B
4 DVDC Analog input AC couple input path C
5 DVDD Analog input AC couple input path D
Main Alt Type Description
RF interface (26)
RFGND18 Ground Analog ground
RFVDD Power Analog power 1.8V
OSP Analog output RF Offset cancellation capacitor connecting
OSN Analog output RF Offset cancellation capacitor connecting
RFGC Analog output RF AGC loop capacitor connecting for DVD-ROM
Current reference input. It generates reference current for RF
IREF Analog input
path. Connect an external 15K resistor to this pin and AVSS
AVDD3 Power Analog power 3.3V
6 DVDRFIP Analog input AC coupled DVD RF signal input RFIP
7 DVDRFIN Analog input AC coupled DVD RF signal input RFIN
8 MA Analog input DC coupled main beam RF signal input A
9 MB Analog input DC coupled main beam RF signal input B
10 MC Analog input DC coupled main beam RF signal input C
11 MD Analog input DC coupled main beam RF signal input D
12 SA Analog input DC coupled sub-beam RF signal output A
13 SB Analog input DC coupled sub-beam RF signal output B
14 SC Analog input DC coupled sub-beam RF signal output C
15 SD Analog input DC coupled sub-beam RF signal output D
PIN
16 CDFON Analog input CD focusing error negative input
17 CDFOP Analog input CD focusing error positive input
18 TNI Analog input 3 beam satellite PD signal negative input
19 TPI Analog input 3 beam satellite PD signal positive input
Main Alt Type Description
ALPC (4)
20 MIDI1 Analog input Laser power monitor input
21 MIDI2 Analog input Laser power monitor input
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22 LDO2 Analog output Laser driver output
23 LDO1 Analog output Laser driver output
Reference voltage (3)
28 V2REFO Analog output Reference voltage 2.8V
29 V20 Analog output Reference voltage 2.0V
30 VREFO Analog output Reference voltage 1.4V
Analog monitor output (7)
24 SVDD3 Power Analog power 3.3V
25 CSO RFOP Analog output
1) Central servo
2) Positive main beam summing output
1) RFRP low pass, or
26 RFLVL RFON Analog output
2) Negative main beam summing output
27 SGND Ground Analog ground
31 FEO Analog output Focus error monitor output
32 TEO Analog output Tracking error monitor output
33 TEZISLV Analog output TE slicing Level
Analog Servo Interface (8)
204
205
206
207
208
209
ADCVDD3 Power Analog 3.3V power for ADC
ADCVSS Ground Analog ground for ADC
RFVDD3 Power Analog power
RFRPDC Analog output RF ripple detect output
RFRPAC Analog input RF ripple detect input (through AC-coupling)
HRFZC Analog input High frequency RF fipple zero crossing
210
211
PIN
195
196
197
198
199
200
201
CRTPLP Analog output Defect level filter capacitor connecting
RFGND Ground Analog power
RF Data PLL Interface (9)
Main Alt Type Description
JITFO Analog output Output terminal of RF jitter meter
JITFN Analog Input Input terminal of RF jitter meter
PLLVSS Ground Ground pin for data PLL and related analog circuitry
IDACEXLP Analog output Data PLL DAC Low -pass filter
PLLVDD3 Power Power pin for data PLL and related analog circuitry
LPFON Analog Output Negative output of loop filter amplifier
LPFIP Analog input Positive input terminal of loop filter amplifier
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202
LPFIN Analog input Negative input terminal of loop filter amplifier
203
LPFOP Analog output Positive output of loop filter amplifier
Motor and Actuator Driver Interface (10)
34 OP_OUT Analog output Op amp output
35 OP_INN Analog input Op amp negative input
36 OP_INP Analog input Op amp positive input
37 DMO Analog output Disk motor control output. PWM output
38 FMO Analog output Feed motor control. PWM output
TROPENPW
39
Analog output Tray PWM output/Tray open output
M
3) 1st General PWM output
40 PWMOUT1 ADIN0 Analog output
4) AD input 0
Tracking servo output. PDM output of tracking servo
41 TRO Analog output
compensator
Focus servo output. PDM output of focus servo
42 FOO Analog output
compensator
43
48
84
132
146
74
120
PIN
60
87
108
137
LVTTL3.3 Input,
1) Monitor hall sensor input
FG
ADIN1
Schmitt input, pull up,
2) AD input 1
(Digital pin)
GPIO
with analog input path
3) GPIO
for ADIN1
General Power/Ground (11)
DVDD18 Power 1.8V power pin for internal digital circuitry
DVSS Ground 1.8V ground pin for internal digital circuitry
Main Alt Type Description
DVDD3 Power 3.3V power pin for internal digital circuitry
149
DVSS Ground 3.3V ground pin for internal digital circuitry
I) 1: manufactory test mode
II) 0: normal operation
10) While internal audio DAC used:
I) Digital video YUV output 2
II) GPO
11) Audio serial data 1 (Left-Surround/Right-Surround)
12) Trap value in power-on reset:
155
156
PIN
157
ASDATA1
YUV4
GPO
InOut 4mA,
II) 0: normal operation
PD,SMT
13) While only 2 channels output:
I) Digital video YUV output 4
II) GPO
14) Audio serial data 2 (Center/LFE)
15) Trap value in power-on reset:
I) 1: manufactory test mode
YUV5
InOut 4mA,
I) 1: manufactory test mode
ASDATA2
GPO
PD,SMT
II) 0: normal operation
16) While only 2 channels output:
I) Digital video YUV output 5 II) GPO
Main Alt Type Description
17) Audio serial data 3 (Center-back/
Center-left-back/Center-right-back, in 6.1 or 7.1 mode)
ASDATA3
YUV6
GPIO
InOut 4mA,
18) While only 2 channels output:
PD,SMT
I) Digital video YUV output 6
II) GPIO
158
MC_DATA
YUV0
INT2#
InOut 2mA,
19) Microphone serial input
20) While not support Microphone:
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Output
I) Microcontroller external interrupt 2
II) Digital video YUV output 0
III) GPIO
159
172
173
174
175
176
177
178
179
180
181
182
183
SPDIF
4~16mA,
S/PDIF output
SR: ON/OFF
AADVSS Ground Ground pin for 2ch audio ADC circuitry
AKIN2 Analog Audio ADC input 2
ADVCM Analog 2ch audio ADC reference voltage
AKIN1 Analog Audio ADC input 1
AADVDD Power 3.3V power pin for 2ch audio ADC circuitry
APLLVDD3 Power 3.3V Power pin for audio clock circuitry
APLLCAP Analog InOut APLL external capacitance connection
APLLVSS Ground Ground pin for audio clock circuitry
ADACVSS2 Ground Ground pin for audio DAC circuitry
ADACVSS1 Ground Ground pin for audio DAC circuitry
21) Audio DAC sub-woofer channel output
ARF GPIO Output
22) While internal audio DAC not used: GPIO
23) Audio DAC right Surround channel output
ARS GPIO Output
24) While internal audio DAC not used: GPIO
184
185
186
PIN
187
188
189
25) Audio DAC right channel output
26) While internal audio DAC not used:
AR GPIO Output
a. SDATA1
b. GPIO
AVCM Analog Audio DAC reference voltage
27) Audio DAC left channel output 28) While internal audio
AL Output
DAC not used: a. SDATA2 b. GPIO
Main Alt Type Description
29) Audio DAC left Surround channel output
30) While internal audio DAC not used:
ALS Output
c. SDATA0
d. GPIO
31) Audio DAC center channel output
ALF Output
32) While internal audio DAC not used: GPIO
ADACVDD1 Power 3.3V power pin for audio DAC circuitry
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190
ADACVDD2 Power 3.3V power pin for audio DAC circuitry
Video Interface (12)
160
161
162
163
164
165
166
167
168
169
170
171
DACVDDC Power 3.3V power pin for video DAC circuitry
VREF Analog Bandgap reference voltage
FS Analog Full scale adjustment
DACVSSC Ground Ground pin for video DAC circuitry
InOut 4mA,
CVBS
Analog composite output
SR
DACVDDB Power 3.3V power pin for video DAC circuitry
DACVSSB Ground Ground pin for video DAC circuitry
DACVDDA Power 3.3V power pin for video DAC circuitry
InOut 4mA,
Green, Y, SY, or CVBS
Y/G
SR
DACVSSA Ground Ground pin for video DAC circuitry
InOut 4mA,
B/CB/PB
Blue, CB/PB, or SC
SR
InOut 4mA,
R/CR/PR
Red, CR/PR, CVBS, or SY
SR
101
PRST#
PD,SMT
InOut
100
193
194
ICE InOut PD,SMT Microcontroller ICE mode enable
XTALO Output 27MHz crystal output
XTALI Input 27MHz crystal input
VSYN
InOut 4mA,
44 GPIO0
PIN
YUV1
Main Alt Type Description
SR,SMT
HSYN
InOut 4mA,
45 GPIO1
INT4#
SR,SMT
YUV2
46 GPIO2 SPMCLK InOut 2mA
MISC (12)
Power on reset input, active low
33) General purpose IO 0
34) Vertical sync for video input
35) Digital video YUV output 1
36) General purpose IO 1
37) Horizontal sync for video input
38) Microcontroller external interrupt 4
39) Digital video YUV output 2
40) General purpose IO 2
41) Audio S/PDIF SPMCLK input
147
GPIO3 INT1# InOut 2mA 42) General purpose IO 3
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SPDATA 43) Microcontroller external interrupt 1
44) Audio S/PDIF SPDATA input
148
GPIO4 SPLRCK InOut 2mA
INT3#
150
GPIO5
SPBCK
90 GPIO6 YUVCLK
99 GPIO7 YUV3
145
144
143
142
RA4 InOut DRAM address 4
RA5 InOut DRAM address 5
RA6 InOut DRAM address 6
RA7 InOut DRA M address 7
45) General purpose IO 4
46) Audio S/PDIF SPLRCK input
47) General purpose IO 5
InOut 2mA
48) Microcontroller external interrupt 3
49) Audio S/PDIF SPBCK input
InOut 4mA,
50) General purpose IO 6
SR,SMT
51) Digital video clock output
InOut 4mA,
SR,SMT
52) General purpose IO 7
53) Digital video YUV output 3
Dram Interface (38) (Sorted by position)
141
140
139
138
136
135
134
133
131
130
PIN
129
128
127
126
RA8 InOu DRAM address 8
RA9 InOut DRAM address 9
RA11 InOut Pull-Down DRAM address bit 11
CKE Output DRAM clock enable
RCLK InOut Dram clock
RA3 InOut DRAM address 3
RA2 InOut DRAM address 2
RA1 InOut DRAM address 1
RA0 InOut DRAM address 0
RA10 InOut DRAM address 10
Main Alt Type Description
BA1 InOut DRAM bank address 1
BA0 InOut DRAM bank address 0
RCS# Output DRAM chip select, active low
RAS# Output DRAM row address strobe, active low
125
124
CAS# Output DRAM column address strobe, active low
RWE# Output DRAM Write enable, active low
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123
DQM1 InOut Data mask 1
122
121
119
118
117
116
115
114
113
112
111
110
109
107
106
RD8 InOut DRAM data 8
RD9 InOut DRAM data 9
RD10 InOut DRAM data 10
RD11 InOut DRAM data 11
RD12 InOut DRAM data 12
RD13 InOut DRAM data 13
RD14 InOut DRAM data 14
RD15 InOut DRAM data 15
RD0 InOut DRAM data 0
RD1 InOut DRAM data 1
RD2 InOut DRAM data 2
RD3 InOut DRAM data 3
RD4 InOut DRAM data 4
RD5 InOut DRAM data 5
RD6 InOut DRAM data 6
105
104
RD7 InOut DRAM data 7
DQM0 InOut Data mask 0
3.5.2 function introduction to 4558
1. Description
The RC4558 and RM4558 devices are dual general-purpose operational amplifiers with each half
electrically similar to the A741 except that offset null capability is not provided.?
The high common -mode input voltage range and the absence of latch-up make these amplifiers ideal for
voltage-follower applications. The devices are short -circuit protected and the internal frequency compensation
ensures stability without external components.
The RC4558 is characterized for operation from 0C to 70C, and the RM4558 is characterized for ??
operation over the full military temperature range of –55 C to 125 C.
2. FEATURES
◆ Continuous-Short-Circuit Protection
◆ Wide Common-Mode and Differential
◆ Voltage Ranges
◆ No Frequency Compensation Required
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◆ Low Power Consumption
◆ No Latch-Up
◆ Unity-Gain Bandwidth . . . 3 MHz Typ
◆ Gain and Phase Match Between Amplifiers
◆ Low Noise . . . 8 nV?Hz Typ at 1 kHz
◆ Designed To Be Interchangeable With
◆ Raytheon RC4558 and RM4558 Devices
3. PIN CONFIGURATION
PIN No Symbol I/O
1 1OUT O
2 1IN– I
3 1IN+ I
PIN No. Symbol I/O
PIN No. Symbol I/O
4 VCC– I
5 2IN+ I
6 2IN– I
7 2OUT O
8 VCC+ I
3.5.3 function introduction to AT24C02
1. Description
Description
Output 1
Inverting Input Pin 1
Non-Inverting Input Pin 1
Description
Description
Negative Power Supply
Non-Inverting Input Pin 2
Inverting Input Pin 2
Output 2
Positive Power Supply
The AT24C02 provides 2048 bits of serial electrically erasable and programmable read-only memory
(EEPROM) organized as 256 words of 8 bits each. The device is optimized for use in many industrial and
commercial applications where low-power and low-voltage operation are essential. The AT24C02 is available
in space-saving 8-lead PDIP,
8-lead MAP, 8 lead TSSOP and 8-ball dBGA2 packages and is accessed via a 2-wire serial interface. In
addition, the entire family is available in 2.7V (2.7V to 5.5V) and 1.8V (1.8V to 5.5V) versions.
2. Features
◆ Low-voltage and Standard-voltage Operation
– 2.7 (VCC = 2.7V to 5.5V)
– 1.8 (VCC = 1.8V to 5.5V)
◆ Internally Organized, 256 x 8 (2K),
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◆ 2-wire Serial Interface
◆ Schmitt Trigger, Filtered Inputs for Noise Suppression
The VIPer22A combines a dedicated current mode PWM controller with a high voltage Power MOSFET
on the same silicon chip. Typical applications cover off line power supplies for battery charger adapters,
standby power supplies for TV or monitors, auxiliary supplies for motor control, etc. The internal control circuit
offers the following benefits:
– Large input voltage range on the VDD pin accommodates changes in auxiliary supply voltage. This
feature is well adapted to battery charger adapter configurations.
– Automatic burst mode in low load condition.
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– Overvoltage protection in hiccup mode.
2. FEATURES
◆ FIXED 60 KHZ SWITCHING FREQUENCY
◆ 9V TO 38V WIDE RANGE VDD VOLTAGE
◆ CURRENT MODE CONTROL
◆ AUXILIARY UNDERVOLTAGE LOCKOUT WITH HYSTERESIS
◆ HIGH VOLTAGE START UP CURRENT SOURCE
◆ OVERTEMPERATURE, OVERCURRENT AND OVERVOLTAGE PROTECTION WITH
AUTORESTART
3. PIN DESCRIPTION
PIN Symbol I/O Description
1 SOURCE O Power MOSFET source and circuit ground reference.
2 SOURCE O Power MOSFET source and circuit ground reference.
3 FB I Feedback input.
4 VDD I Power supply of the control circuits.
5 DRAIN I Power MOSFET drain.
6 DRAIN I Power MOSFET drain.
7 DRAIN I Power MOSFET drain.
8 DRAIN I Power MOSFET drain.
3.5.5 function introduction to AM5888S
1. Description
The AM5888S is a five-channel BTL driver IC for driving the motors and actuators such as used in DVD
player and consists of two independent precision voltage regulators with adjustable range from 1.5V to 4 V. It
supports a variety of applications. Also, Pb free package is selectable (Please refer to Marking Identification).
2. Fetures
1) Two channels are voltage-type BTL drivers for actuators of tracking and focus. Two channels are
voltage-type BTL driver for sled and spindle motors. It is also built-in one channel bi-direction DC motor driver
for tray.
2) Wide dynamic range [9.0V (typ.) when Vcc1= Vcc2= 12V, at RL= 20¦¸ load].
3) Separating power of Vcc1 and Vcc2 is to improve power efficiency by a low supply voltage for tracking,
focus, and spindle.
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4) Level shift circuit built-in.
5) Thermal shut down circuit built-in.
6) Mute mode built-in.
7) Dual actuator drivers:
A general purpose input OP provides differential input for signal addition. The output structure is two
power OPAMPS in bridge configuration.
8) Sled motor driver:A general purpose input OP provides differential input for signal addition. The output
structure is one power OPAMP in bridge configuration.
9) Spindle driver:Single input linear BTL driver. The output structure are two power OPAMPS in bridge
configuration.
10) Tray in-out driver:The DC motor driver supports forward/reverse control for tray motor.
11) 2 Built -in regulator controllers: Adjustable range 1.5V ~ 4V
3. PIN DESCRIPTION
PIN Symbol I/O Description
1 VINFC I Input for focus drive
2 TRB_1 O Connect to external transistor base
3 REGO2 O Regulator voltage output, connect to external transistor collector
4 VINSL I Input for the sled driver
5 REGO1 O Regulator voltage output, connect to external transistor collector
6 FWD I Tray driver forward input
7 REV I Tray driver reverse input
8 VCC1 I Vcc for pre-drive block and power block of sled and tray
9 VOTR- O Tray driver output (-)
10 VOTR+ O Tray driver output (+)
11 VOSL+ O Sled driver output (+)
12 VOSL- O Sled driver output (-)
13 VOFC- O Focus driver output (-)
14 VOFC+ O Focus driver output (+)
15 VOTK+ O Tracking driver output (+)
16 VOTK- O Tracking driver output (-)
17 VOLD+ O Spindle driver output (+)
18 VOLD- O Spindle driver output (-)
19 VCC2 I Vcc for power block of spindle, tracking and focus
20 NC No Connection
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21 VCTL I Speed control input of tray driver
22 GND I Ground
23 VINLD I Input for spindle driver
24 NC No Connection
25 TRB_2 O Connect to external transistor base
26 VINTK I Input for tracking driver
27 BIAS I Input for reference voltage
28 MUTE I Input for mute control
3.5.6 function introduction to PT6961(4dv315)
1. DESCRIPTION
PT6961 is an LED Controller driven on a 1/7 to 1/8 duty factor. Eleven segment output lines, six grid
output lines, 1 segment/grid output lines, one display memory, control circuit, key scan circuit are all
incorporated into a single chip to build a highly reliable peripheral device for a single chip microcomputer.
Serial data is fed to PT6961 via a four-line serial interface. Housed in a 32-pin SO Package, PT6961 pin
assignments and application circuit are optimized for easy PCB Layout and cost saving advantages.
◆ Serial Interface for Clock, Data Input, Data Output, Strobe Pins
◆ Available in 32-pin, SOP Package
3. PIN DESCRIPTION
PIN Symbol I/O Description
1 OSC I Oscillator Input P in
2 DOUT O Data output
3 DIN I Data input
4 CLK I Clock input
5 STB I Serial interface strobe
6 K1 I Key data input
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7 K2 I Key data input
8 K3 I Key data input
9 VDD I Power supply
10 SG1/KS1 O Segment output
11 SG2/KS2 O Segment output
12 SG3/KS3 O Segment output
13 NC
14 SG4/KS4 O Segment output
15 SG5/KS5 O Segment output
16 SG6/KS6 O Segment output
17 SG7/KS7 O Segment output
18 SG8/KS8 O Segment output
19 SG9/KS9 O Segment output
20 SG10/KS10 O Segment output
21 SG11 O Segment output
22 SG12/GR7 O Segment output
23 GR6 O Grid output
24 GR5 O Grid output
25 VDD I Power input
26 GND I Ground
27 GR4 O Grid output
28 GR3 O Grid output
29 GND I Ground
30 GR2 O Grid output
31 GR1 O Grid output
32 GND I Ground
3.5.7 Function introduction to SDRAM
64M 16-bit memorizer SDRAM with the player and the working clock frequency is 166/143MHZ. The
function of 16SDRAM in DVD players is to memorizer the program of AML3298 taken out from FLASH and
information of image and sound taken out from disc to form buffer, add the stability of information output and
add ant i-shaking effect of player. Pin function introduction is shown as the following table:
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Pin Name
1 VDD 3.3V power supply 28 VSS Ground
2 DQ0 Data bus I/O 29 MA4 Address bus I
Function Signal flow Pin Name Function Signal flow
3 VDDQ
4 DQ1 Data bus I/O 31 MA6 Address bus I
5 DQ2 Data bus I/O 32 MA7 Address bus I
6 VSSQ
7 DQ3 Data bus I/O 34 MA9 Address bus I
8 DQ4 Data bus I/O 35 MA11 Address bus I
9 VDDQ
10
DQ5 Data bus I/O 37 CKE Clock enable signal I
11 DQ6 Data bus I/O 38 CLK System clock input I
12 VSSQ
13
DQ7 Data bus I/O 40 NC Blank
14 VDD 3.3V power supply 41 VSS Ground
15 LDQM
3.3V power supply I/O 30 MA5 Address bus I
Ground 33 MA8 Address bus I
3.3V power supply 36 NC Blank
Data input/output
Ground 39 UDQM
screen-shielded signal
Data input/output screen-shielded
I 42 DQ8 Data bus I/O
signal
I
16
17 CAS Line address gating signal I 44 DQ9 Data bus I/O
18 RAS Row address gating signal I 45 DQ10
19
20 SD -BS0 Segmanr address 0 gating signal
21 SD -BS1 Segmanr address 1 gating signal
22 MA10
23 MA0 Address bus I 50 DQ13
24 MA1 Address bus I 51 DQ14
25 MA2 Address bus I 52 VSSQ
26 MA3 Address bus I 53 DQ15
27 VDD 3.3V power supply 54 VSS Ground
WE Write control signal I 43 VDDQ
CS Chip selection signal I 46 VSSQ
I 47 DQ11 Data bus I/O
I 48 DQ12
Address bus I 49 VDDQ
3.3V power supply
Data bus I/O
Ground
Data bus I/O
3.3V power supply
Data bus I/O
Data bus I/O
Ground
Data bus I/O
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3.5.8 Function introduction to FLASH
R
FLASH (U214) is a 16Mbit FLASH memorizer, and the damage of U214 may cause troubles, such as
power not on, no disc reading and power on picture mosaic. Pin function is shown as the following table:
Pin Name Function Voltage (when no disc) Data direction
1-9、16-25、48
11 WE Write enable signal, low level is effective 3.23V I
12 RESET Reset, low level is effective 3.23V I
10、13、14
15 RY/BY Ready/system busy 3.23V O
26 CE Chip enable, low level effective 0V I
27、46
28 OE Output enable signal , low level is effective 0V I
29-3、6、38 -44
37 VCC 5V power supply +5V
45 DQ15/A-1
47 BYTE
AO-A19 20 bit address bus I
NC Blank pin
VSS Ground
DQ0-DQ14
Take word extend mode as data line, and bit extend
Select 8-bit or 16-bit output mode. High level is 16-bit
output and low level is 8-bit output
15 bit data bus O
I/O
mode as address line
I
3.5.9 Function introduction to LM431A
U503 (LM431A) is a 2.5V comparator, shown as the figure 3.5.9.1. Compared the inputted voltage of R end
with 2.5V, when voltage of R end is more than 2.5V, KA end is on and photoelectric coupler starts to send out
photocurrent; when voltage of R end is less than 2.5V, KA end is cutoff and photoelectric coupler does not send
out photocurrent. CPU+3.3V in power board circuit must be kept in 3.3V, for the function of comparator. No
matter more than or less than 3.3V, through on and off status of comparator, it will control the on state of the
output end of photoelectric coupler LM431A to adjust the output space occupation ratio of switch module to
control the output voltage of transformer and masthead the power.
K
A
Figure 3.5.9.1 LM431A outside drawing
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3.5.10 Function introduction to Pc817
U502 (2501) is a photoelectric coupler, shown as the figure 3.5.10.1. The right side is a light emitting diode,
which sends out light of different intensity according to the strength of voltage inputted from the right side,
generates photocurrent of different intensity on the left side according to light of different intensity, and outputs
from position D. The higher of the voltage inputted from the right side, the stronger of the light emitted from
light emitting diode and the larger of the photocurrent produced from position D. The lower of the voltage
inputted from the right side of photoelectric coupler, the weaker of the light emitted from light emitting diode
and the weaker of the current outputted from position D.
Figure 3.5.10.1 2501 outside drawing
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Page 80
Chapter Cinque
PCB board & Circuit diagram
Section One PCB board
5.1.1 Surface layer of AV OUT Board
L713
7314SI-0 LEI
DVD 2006/03/21
R#
L#
AGND
XS702
L714
V701
R706
PDAT2
PDAT1
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L701
L702 L703 L704
PR#
R708
AGND
V703
R709
R#
+10V
JP701
V702
Y1#
PDAT0
PB#
L#
VIEDO
XS706
Page 81
5.1.2 Bottom layer of AV OUT Board
C724
R711
R712
C728
C723
ZD704
ZD703
R704
R710
ZD702
ZD701
R715
R714
C726
R705
C716
C727
C725
D701
D702
R713
R716
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Page 82
5.1.3 Surface layer of DECODE&SERVO Board
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Page 83
5.1.4 Bottom layer of DECODE&SERVO Board
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5.1.5 MIC Board
XS602
R619
C619
+5V
-9V
+9V
GND
OKA
DET
R632
R633
R620
Q601
+
TC616 C602
TC613
+
TC615 C601
R626
C607
R613
U601
R612
C605
1
+5V
DET
GND
IN
R609
R607
JP601
TC603
6311SA-0 TANG
DVD 2006/03/08
TC605
XS601
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5.1.6 KEY SCAN Board
U403
XS401
C405
TC407
VO G
R415
+
JP401
JP402
IR
VCC
DST
GND
DCK
LED402
DAT
LED
R418
R417
R416
R402
LED403
H=5.5MM
R406
R407
Q401
LED401
R401
4141-0 LEI
2004.05.07
D401
K402
K403K401
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5.1.7 POWER Board
G502
G501
GND
+3.3V
GND
+5V
GND
-9V
+9V
R501
L501
BCN503
CAUTION:
BC501
T1.6AL 250V
F502
FOR CONTINUED
PROTECTION AGAINST
RISK OF FIRE
ONLY WITH SAME TYPE