Philco STC-1500 Service manual
MTK1379 SOLUTION
MODEL:
STC-1500 DVD Surround System
CONTENTS
1. PRECAUTIONS-------------------------------------------------------------------------------------------------------------------- 1
AFETY PRECAUTIONS---------------------------------------------------------------------------------------------------------- 1
1-1 S
1-2 S
ERVICING PRECAUTIONS ------------------------------------------------------------------------------------------------------ 2
1-2-1 General Serving Precautions -------------------------------------------------------------------------------------------- 2
1-2-2 Insulation Checking Procedure------------------------------------------------------------------------------------------ 3
1-3 ESD P
2. REFERENCE INFORMATION ------------------------------------------------------------------------------------------------ 4
2-1 C
2-1-1 DVD SANYO HD60 PUH ------------------------------------------------------------------------------------------------ 4
2-1-2 DVD Processor Chip (MTK1379) and Front-end IC MT1336------------------------------------------------------ 6
2-1-3 28-Pin, 24-Bit, 192kHz D/A with Volume Control (DA1196) ----------------------------------------------------15
2-1-4 Serial EEPROM, 16K (2048 x 8) (24C16)----------------------------------------------------------------------------17
2-1-5 8M-BIT [1Mx8/512Kx16] CMOS FLASH MEMORY ---------------------------------------------------------------18
2-1-6 512K X 16 Bit X 2 Banks Synchronous DRAM (A43L0616) -------------------------------------------------------20
3. PRODUCT SPECIFICATIONS------------------------------------------------------------------------------------------------23
RECAUTIONS ------------------------------------------------------------------------------------------------------------- 3
OMPONENT DESCRIPTIONS --------------------------------------------------------------------------------------------------- 4
4.UPGRADING SYSTEM AND CHANGING THE REGION CODE----------------------------------------------------24
5. OPERATING INSTRUCTION-------------------------------------------------------------------------------------------------25
AINTENANCE & TROUBLESHOOTING ------------------------------------------------------------------------------------------26
M
6.DISASSEMBLY AND REASSEMBLY----------------------------------------------------------------------------------------28
7.TROUBLESHOOTING ----------------------------------------------------------------------------------------------------------30
8. ELECTRICAL PART LIST-----------------------------------------------------------------------------------------------------31
9. BLOCK DIAGRAM --------------------------------------------------------------------------------------------------------------38
10. CIRCUIT DIAGRAMS---------------------------------------------------------------------------------------------------------40
11. WIRING DIAGRAM------------------------------------------------------------------------------------------------------------48
1. PRECAUTIONS
1-1 Safety Precautions
1) Before returning an instrument to the customer, always
make a safety check of the entire instrument, including, but
not limited to, the following items:
(1) Be sure that no built-in protective devices are defective
or have been defeated during servicing.
(1) Protective shields are provided to protect both the
technician and the customer. Correctly replace all
missing protective shields, including any remove for
servicing convenience.
(2) When reinstalling the chassis and/or other
assembly in the cabinet, be sure to put back in place
all protective devices, including, but not limited to,
nonmetallic control knobs, insulating fish papers,
adjustment and compartment covers/shields, and
isolation resistor/capacitor networks. Do not operate
this instrument or permit it to be operated without all
protective devices correctly installed and functioning.
(2) Be sure that there are no cabinet opening through which
adults or children might be able to insert their fingers
and contact a hazardous voltage. Such openings
include, but are not limited to, excessively wide
cabinet ventilation slots, and an improperly fitted
and/or incorrectly secured cabinet back cover.
(3) Leakage Current Hot Check-With the instrument
completely reassembled, plug the AC line cord
directly into a 120V AC outlet. (Do not use an
isolation transformer during this test.) Use a leakage
current tester or a metering system that complies with
American National Standards institute (ANSI) C101.1
Leakage.
Current for Appliances and underwriters Laboratories
(UL) 1270 (40.7). With the instrument’s AC switch
first in the ON position and then in the OFF position,
measure from a known earth ground (metal water pipe,
conduit, etc.) to all exposed metal parts of the
instrument (antennas, handle brackets, metal cabinets,
screwheads, metallic overlays, control shafts, etc.),
especially and exposed metal parts that offer an
electrical return path to the chassis.
Any current measured must not exceed 0.5mA.
Reverse the instrument power cord plug in the outlet
and repeat the test.
AC Leakage Test
Any measurements not within the limits specified
herein indicate a potential shock hazard that must be
eliminated before returning the instrument to the
customer.
(4) Insulation Resistance Test Cold Check-(1) Unplug the
power supply cord and connect a jumper wore
between the two prongs of the plug. (2) Turn on the
power switch of the instrument. (3) Measure the
resistance with an ohmmeter between the jumpered
AC plug and all exposed metallic cabinet parts on the
instrument, such as screwheads, antenna, control
shafts, handle brackets, etc. When an exposed
metallic part has a return path to the chassis, the
reading should be between 1 and 5.2 megohm. When
there is no return path to the chassis, the reading must
be infinite. If the reading is not within the limits
specified, there is the possibility of a shock hazard,
and the instrument must be re-pared and rechecked
before it is returned to the customer.
1
Insulation Resistance Test
2) Read and comply with all caution and safety related
notes non or inside the cabinet, or on the chassis.
3) Design Alteration Warning-Do not alter of add to the
mechanical or electrical design of this instrument.
Design alterations and additions, including but not
limited to, circuit modifications and the addition of
items such as auxiliary audio output connections,
might alter the safety characteristics of this instrument
and create a hazard to the user. Any design alterations
or additions will make you, the service, responsible
for personal injury or property damage resulting there
from.
4) Observe original lead dress. Take extra care to assure
correct lead dress in the following areas:
(1) near sharp edges, (2) near thermally hot parts (be
sure that leads and components do not touch
thermally hot parts), (3) the AC supply, (4) high
voltage, and (5) antenna wiring. Always inspect in all
areas for pinched, out-of-place, or frayed wiring. Do
not change spacing between a component and the
printed-circuit board, Check the AC power cord for
damage.
5) Components, parts, and/or wiring that appear to have
overheated or that are otherwise damaged should be
replaced with components, parts and/or wiring that
meet original specifications. Additionally determine
the cause of overheating and/or damage and, if
necessary, take corrective action to remove and
potential safety hazard.
6) Product Safety Notice-Some electrical and mechanical
parts have special safety-related characteristics which
are often not evident from visual inspection, nor can
the protection they give necessarily be obtained by
replacing them with components rated for higher
voltage, wattage, etc. Parts that have special safety
characteristics are identified by shading, an (
(
) on schematics and parts lists. Use of a substitute
replacement that does not have the same safety
characteristics as the recommended replacement part
might created shock, fire and/or other hazards.
Product safety is under review continuously and new
instructions are issued whenever appropriate.
) or a
1-2 Servicing Precautions
CAUTION: Before servicing Instruments covered by this
service manual and its supplements, read and follow the
Safety Precautions section of this manual.
Note: If unforeseen circument create conflict between the
following servicing precautions and any of the safety
precautions, always follow the safety precautions.
Remember; Safety First
1-2-1 General Serving Precautions
(1) a. Always unplug the instrument’s AC power cord from
the AC power source before (1) removing or
reinstalling any component, circuit board, module or
any other instrument assembly. (2) disconnecting
any instrument electrical plug or other electrical
connection. (3) connecting a test substitute in
parallel with an electrolytic capacitor in the
2
instrument.
b. Do not defeat any plug/socket B+ voltage interlocks
with which instruments covered by this service
manual might be equipped.
c. Do not apply AC power to this instrument and/or any
of its electrical assemblies unless all solid-state
device heat sinks are correctly installed.
d. Always connect a test instrument’s ground lead to
the instrument chassis ground before connecting the
test instrument positive lead. Always remove the test
instrument ground lead last.
Note: Refer to the Safety Precautions section ground
lead last.
(2) The service precautions are indicated or printed on the
cabinet, chassis or components. When servicing,
follow the printed or indicated service precautions
and service materials.
(3) The components used in the unit have a specified flame
resistance and dielectric strength.
When replacing components, use components which
have the same ratings, by (
circuit diagram are important for safety or for the
characteristics of the unit. Always replace them with
the exact replacement components.
(4) An insulation tube or tape is sometimes used and some
components are raised above the printed wiring board
for safety. The internal wiring is sometimes clamped
to prevent contact with heating components. Install
such elements as they were.
(5) After servicing, always check that the removed screws,
components, and wiring have been installed correctly
and that the portion around the serviced part has not
) or by ( ) in the
1-3 ESD Precautions
been damaged and so on. Further, check the insulation
between the blades of the attachment plus and
accessible conductive parts.
1-2-2 Insulation Checking Procedure
Disconnect the attachment plug from the AC outlet and
turn the power ON. Connect the insulation resistance meter
(500V) to the blades of the attachment plug. The insulation
resistance between each blade of the attachment plug and
accessible conductive parts (see note) should be more than
1 Megohm.
Note: Accessible conductive parts include metal panels,
input terminals, earphone jacks, etc.
Electrostatically Sensitive Devices (ESD)
Some semiconductor (solid static electricity) devices can
be damaged easily by static electricity.
Such compo9nents commonly are called Electrostatically
Sensitive Devices (ESD). Examples of typical ESD devices
are integrated circuits and some field-effect transistors and
semiconductor chip components. The following techniques
of component damage caused by static electricity.
(1) immediately before handling any semiconductor
components or semiconductor-equipped assembly,
drain off any electrostatic charge on your body by
touching a known earth ground. Alternatively, obtain
and wear a commercially available discharging wrist
strap device, which should be removed for potential
shock reasons prior to applying power to the unit
under test.
(2) after removing an electrical assembly equipped with
ESD devices, place the assembly on a conductive
surface such as aluminum foil, to prevent electrostatic
charge buildup or exposure of the assembly.
(3) Use only a grounded-tip soldering iron to solder or
unsolder ESD device.
(4) Use only an anti-static solder removal devices. Some
solder removal devices not classified as “anti-static”
can generate electrical charges sufficient to damage
ESD devices.
(5) Do not use freon-propelled chemicals. These can
generate electrical charges sufficient to damage ESD
devices.
(6) Do not remove a replacement ESD device from its
protective package until immediately before you are
ready to install it. (Most replacement ES devices are
packaged with leads electrically shorted together by
conductive foam, aluminum foil or comparable
conductive materials).
(7) Immediately before removing the protective materials
from the leads of a replacement ES device touch the
protective material to the chassis or circuit assembly
into which the device will be installed.
CAUTION: Be sure no power is applied to the chassis or
circuit, and observe all other safety precautions.
(8) Minimize bodily motions when handling unpackaged
replacement ESD devices. (Otherwise harmless
motion such as the brushing together of your clothes
fabric or the lifting of your foot from a carpeted floor
can generate static electricity sufficient to damage an
ESD device).
3
2. Reference Information
2-1 Component Descriptions
2-1-1 DVD SANYO HD60 PUH
Connector Pin Definition
I/F Signals I/O Pin #
F- 1
F+ 2
T+ 3
T- 4
C 5
D 6
CD/DVD 7
RF 8
A 9
B 10
F 11
GND-PD 12
VC 13
VCC 14
E 15
NC 16
VR-CD 17
VR-DVD 18
LD-CD 19
MD 20
HFM 21
NC 22
LD-DVD 23
GND-LD 24
4
p
4. Block Diagram
Disc
Disc motor unit
Spindle
Motor
BA6208
Spindle Motor Drive
Focus
Coil
Laser
ickup
Track
Coil
BA5954FP
4ch motor Drive
MT1369
(RF AMP)
Laser Driver
Equalizer
Error Gen
Sied
Motor
Loading
Motor
MT1369
(Decode/Servo)
ATA P I
Buffer Manager
Demodulator
Error Correction
PLI
Focus & Tracking
Loading
AuDdio D/A
WM8720
SDRAM
1*16MHzX2
Video D/A
CS4955
1/F
Conn
(frant pannel)
Spindle motor single for CLV
Fiash
Memory
8Mbit
80c52
System Controller
5
2-1-2 DVD Processor Chip (MTK1379) and Front-end IC MT1336
* Features
Single-chip DVD video decoder in a 208-pin PQFP package
Supports MPEG-1 system and MPEG-2 program streams
Programmable multimedia processor architecture
Compatible with Audio CD, Video CD, VCD 3.0, and Super Video CD (SVCD)
DVD Navigation 1
Built-in content Scrambling System (CSS)
- Audio
Built-in Karaoke key-shift function
DolbyTM Digital 2-channel down mix audio output for DolbyTM
Dolby Pro Logic
Linear PCM streams for24 bit / 96KHz
Concurrent S/PDIF out and 2-channel audio output
Sensaura Dolby Digital Virtual Surround
DTS Digital Surround 2-channel down mix stereo output
S/PDIF output for encoded AC-3, DTS Digital output or Linear PCM
- Peripheral
Glueless interface to DVD loaders (ATAPI or A/V bus I/F)
Bi-directional 12C audio interface
8 general-purpose auxiliary ports
Single 27MHz clock input
- Smart Technology
SmartZoomTM for motion zoom & pan
SmartZoomTM for NTSC to PAL conversion and vice versa
SmartZoomTM for video error concealment
* Functional Description
6
* Pinout Diagram
7
1
IREF
2
PLLVSS
3
LPIOP
4
LPION
5
LPFON
6
LPFIP
7
LPFIN
8
LPFOP
9
JITFO
10
JITFN
11
PLLVDD3
12
FOO
13
TRO
14
TROPENPWM
15
PWMOUT1
16
PWMOUT2
17
DVDD2
18
DMO
19
FMO
20
DVSS
21
FG
22
HIGHA0
23
HIGHA1
24
HIGHA2
25
HIGHA3
26
HIGHA4
27
HIGHA5
28
DVSS
29
HIGHA6
30
HIGHA7
31
AD7
32
AD6
33
AD5
34
AD4
35
DVDD3
36
AD3
37
AD2
38
AD1
39
AD0
40
IOA0
41
IOA1
42
DVDD2
43
IOA2
44
IOA3
45
IOA4
46
IOA5
47
IOA6
48
IOA7
49
A16
50
A17
51
IOA18
52
IOA19
53
IOA20
54
APLLVSS
216
215
RFIP
214
RFIN
213
210
211
212
ADCVDD3
RFDTSLVP
RFDTSLVN
PWM2VREF
209
PWMVREF
207
208
HRFZC
RFRP_AC
206
RFRP_DC
205
204
FEI
RFLEVEL
202
201
200
199
198
197
196
195
194
193
192
191
190
189
188
187
186
185
184
183
182
181
180
179
178
177
176
175
174
DVSS
YUV7
VSYN
BLANK#
173
ICE
YUV6/R
203
TEI
CSO
BDO
ADIN
SLCK
SDEN
SDATA
RFSUBI
TEZISLV
ADCVSS
WOBSI
DVSS
PRST
XTALI
VFO13
XTALO
SPBCK
DVDD3
IDGATE
UDGATE
DVDD3
HSYN
DVDD2
SPLRCK
SPDATA
SPMCLK
MT1379_216
APLLVDD3
ALE
IOOE#
IOWR#
IOCS#
DVSS
UP1_2
UP1_3
UP1_4
UP1_5
UP1_6
DVDD3
UP1_7
UP3_0
UP3_1
INT0#IRDVDD2
UP3_4
UP3_5
UWR#
URD#
DVSS
RD7
RD6
RD5
RD4
DVDD2
RD3
RD2
RD1
RD0
RWE#
CAS#
RAS#
RCS#
BA0
DVSS
RD15
RD14
RD13
RD12
DVDD3
RD11
555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899
172
YUV5/B
RD10
171
DACVSSA
RD9
100
170
101
169
YUV4/G
RD8
102
168
DACVDDA
DVSS
103
167
YUV3/CVBS
CLK
104
166
YUV2/Y
DACVSSB
CLE
RA11
105
165
106
164
DACVDDB
RA9
107
YUV1/C
RA8
163
YUV0/CIN
DACVDDC
108
U4 MT1379E
SMD LQFP-216
DACVSSC
FS
VREF
ASDATA4
ASDATA3
ASDATA2
ASDATA1
ASDATA0
SPDIF
MC_DATA
ACLK
DVDD3
ALRCK
ABCK
RD16
RD17
DVSS
RD18
RD19
RD20
RD21
DVDD2
RD22
RD23
DQM2
DQM3
DVSS
RD24
RD25
RD26
RD27
DVDD3
RD28
RD29
RD30
RD31
DVSS
RA3
RA2
RA1
RA0
DVDD2
RA10
BA1
DQM0
DQM1
DVSS
RA4
RA5
RA6
DVDD3
RA7
DMVSS
DMVDD3
162
161
160
159
158
157
156
155
154
153
152
151
150
149
148
147
146
145
144
143
142
141
140
139
138
137
136
135
134
133
132
131
130
129
128
127
126
125
124
123
122
121
120
119
118
117
116
115
114
113
112
111
110
109
8
PIN DESCRIPTON
PIN Symbol Type Description
1 IREF Analog Input
2 PLLVSS Ground Ground for data PLL and related analog circuitry
3 LPIOP Analog output Positive output of the low pass filter
4 LPION Analog output Negative output of the low pass filter
5 LPFON Analog output Negative output of loop filter amplifiter
6 LPFIP Analog input Positive input of loop filter amplifier
7 LPFIN Analog input Negative input of loop filter amplifier
8 LPFOP Analog output Positive output of loop filter amplifier
9 JITFO Analog output RF jitter meter output
10 JITFN Analog input Negative input of the operation amplifier for RF jigger meter
11 PLLVDD3 Power Power for data PLL and related analog circuitry
12 FOO Analog output Focus servo output. PDM output of focus servo compensator
13 TRO Analog output Tracking servo output.PDM output of tracking servo compensator
14 TROPENPWM Analog outpu
16 PWMOUT2 Analog outpu The general PWM output
17 DVDD2 Power 2.5V power
18 DMO Analog outpu Disk motor control output.PWM output
19 FMO Analog outpu Feed motor control. PWM output
20 FG Inout, pull up Motor Hall sensor input
21 DVSS Ground Ground
22 HIGHA0 Inout, pull up Microcontroller address 8
23 HIGHA1 Inout, pull up Microcontroller address 9
24 HIGHA2 Inout, pull up Microcontroller address 10
25 HIGHA3 Inout, pull up Microcontroller address 11
26 HIGHA4 Inout, pull up Microcontroller address 12
27 HIGHA5 Inout, pull up Microcontroller address 13
28 DVSS Ground Ground
29 HIGHA6 Inout, pull up Microcontroller address 14
30 HIGHA7 Inout, pull up Microcontroller address 15
31 AD7 Inout Microcontroller address/data 7
32 AD6 Inout Microcontroller address/data 6
33 AD5 Inout Microcontroller address/data 5
34 AD4 Inout Microcontroller address/data 4
35 DVDD3 Power 3.3V power
36 AD3 Inout Microcontroller address/data 3
37 AD2 Inout Microcontroller address/data 2
38 AD1 Inout Microcontroller address/data 1
39 AD0 Inout Microcontroller address/data 0
40 IOA0 Inout, pull up Microcontroller address 0/GPIO0
41 IOA1 Inout, pull up Microcontroller address 0/GPIO1
42 DVDD2 Power 2.5V power
43 IOA2 Inout, pull up Microcontroller address 0/GPIO2
44 IOA3 Inout, pull up Microcontroller address 0/GPIO3
45 IOA4 Inout, pull up Microcontroller address 0/GPIO4
46 IOA5 Inout, pull up Microcontroller address 0/GPIO5
47 IOA6 Inout, pull up Microcontroller address 0/GPIO6
48 IOA7 Inout, pull up Microcontroller address 0/GPIO7
49 A16 Outpu Flash address 16
50 A17 Output Flash address 17
51 IOA18 Inout Flash address 18 / GPIO10
52 IOA19 Inout Flash address 19 / GPIO11
53 IOA20 Inout Flash address20 / GPIO12
54 APLLVSS3 Ground Ground
Current reference input.it generate reference current for data PLL
Connect an external 100K resistor to this pin and PLLVSS.
Tray open output,controlled by microcontroller.
This is PWM output for TRWMEN
TRWMEN27Hrw2=0
27hRW2=1 or is digital output for
9
PIN Symbol Type Description
55 APLLVDD3 Power 3.3V power
56 ALE Inout,pull up Microcontroller address latch enable
57 IOOE# Inout Flash output enable,active low /GPIO13
58 IOWR# Inout Flash write enable,active low /GPIO17
59 IOCS# Inout,pull up Flash chip select,active low /GPIO18
60 DVSS Ground Ground
61 UP1_2 Inout,pull up Microcontroller port 1-2
62 UP1_3 Inout,pull up Microcontroller port 1-3
63 UP1_4 Inout,pull up Microcontroller port 1-4
64 UP1_5 Inout,pull up Microcontroller port 1-5
65 UP1_6 Inout,pull up Microcontroller port 1-6
66 DVDD3 Power 3.3V power
67 UP1_7 Inout,pull up Microcontroller port 1-7
68 UP3_0 Inout,pull up Microcontroller port 3-0
69 UP3_1 Inout,pull up Microcontroller port 3-1
70 INT0# Inout,pull up Microcontroller interrupt 0,active low
71 IR Input IR control signal input
72 DVDD2 Power 2.5V power
73 UP3_4 Inout Microcontroller port 3-4
74 UP3_5 Inout Microcontroller port 3-5
75 UWR# Inout,pull up Microcontroller write strobe,active low
76 URD# Inout,pull up Microcontroller read strobe,active low
77 DVSS Ground Ground
78 RD7 Inout DRAM data 7
79 RD6 Inout DRAM data 6
80 RD5 Inout DRAM data 5
81 RD4 Inout DRAM data 4
82 DVDD2 Power 2.5V power
83 RD3 Inout DRAM data 3
84 RD2 Inout DRAM data 2
85 RD1 Inout DRAM data 1
86 RD0 Inout DRAM data 0
87 RWE# Output DRAM write enable,active low
88 CAS# Output DRAM column address strobe,active low
89 RAS# Output DRAM row address strobe,active low
90 RCS# Output DRAM chip select,active low
91 BA0 Output DRAM bank address 0
92 DVSS Ground Ground
93 RD15 Inout,pull up/down DRAM data 15
94 RD14 Inout,pull up/down DRAM data 14
95 RD13 Inout,pull up/down DRAM data 13
96 RD12 Inout,pull up/down DRAM data 12
97 DVDD3 Power Power3.3V
98 RD11 Inout,pull up/down DRAM data 11
99 RD10 Inout,pull up/down DRAM data 10
100 RD9 Inout,pull up/down DRAM data 9
101 RD8 Inout,pull up/down DRAM data 8
102 DVSS Ground Ground
103 CLK Output DRAM clock
104 CLE Output DRAM clock enable
105 RA11 Output DRAM address bit 11 or audio serial data 3 (channel 7/8)
106 RA9 Output DRAM address 9
107 RA8 Output DRAM address 8
108 DMVDD3 Power 3.3V power
109 DMVSS Ground Ground
110 RA7 Output DRAM address 7
111 DV33 Power 3.3V power
112 RA6 Output DRAM address 6
113 RA5 Output DRAM address 5
10
PIN Symbol Type Description
114 RA4 Output DRAM address 4
115 DVSS Ground Ground
116 DQM1 Output Mask for DRAM input/output byte 1
117 DQM0 Output Mask for DRAM input/output byte 0
118 BA1 Output DRAM bank address 0
119 RA10 Output DRAM address 10
120 DVDD2 Power 2.5V power
121 RA0 Output DRAM address 0
122 RA1 Output DRAM address 1
123 RA2 Output DRAM address 2
124 RA3 Output DRAM address 3
125 DVSS Ground Ground
126 RD31 Inout,pull up/down DRAM data 31
127 RD30 Inout,pull up/down DRAM data 30
128 RD29 Inout,pull up/down DRAM data 29
129 RD28 Inout,pull up/down DRAM data 28
130 DVDD3 Power 3.3V power
131 RD27 Inout,pull up/down DRAM data 27
132 RD26 Inout,pull up/down DRAM data 26
133 RD25 Inout,pull up/down DRAM data 25
134 RD24 Inout,pull up/down DRAM data 24
135 DVSS Ground Ground
136 DQM3 Output Mask for DRAM input/output byte 3
137 DQM2 Output Mask for DRAM input/output byte 2
138 RD23 Inout,pull up/down DRAM data 23
139 RD22 Inout,pull up/down DRAM data 22
140 DVDD2 Power 2.5V power
141 RD21 Inout,pull up/down DRAM data 21
142 RD20 Inout,pull up/down DRAM data 20
143 RD19 Inout,pull up/down DRAM data 19
144 RD18 Inout,pull up/down DRAM data 18
145 DVSS Ground Ground
146 RD17 Inout,pull up/down DRAM data 17
147 RD16 Inout,pull up/down DRAM data 16
148 ABCK Output Audio bit clock
149 ALRCK Input,pull down
150 DVDD3 Power 3.3V power
151 ACLK Inout Audio DAC master clock (384/256 audio sample frequency)
152 MC_DAT Input Microphone serial input
153 SPDIF Output SPDIF output
154 ASDATA0 Input,pull down Audio serial data 0 (left/right channel)
155 ASDATA1 Input,pull down Audio serial data 1 (surround left/surround right channel)
156 ASDATA2 Input,pull down Audio serial data 2 (center/LFE channel)
157 MUTE Output Audio Mute Signal
158 ASDATA4 Input,pull down Audio serial data 4
159 DACV33C Power 3.3V power
160 VREF output
161 FS
162 YUV0/CIN
163 DACVSSC Ground Ground
164 YUV1 Output Video data output bit 1
165 DACVDDB Power 3.3V Power
166 YUV2 Output Video data output bit 2
167 DACVSSB Ground Ground
168 YUV3/CVBS Output CVBS video output
169 DACV33A Power 3.3V power
170 YUV4/G Output Video data output bit 4
171 DACVSSA Ground Ground
172 YUV5/B Output Video data output bit 5
(1) Audio left/right channel clock (2)Trap value in power-on reset.
1:use external 373, 0:use internal 373
11
PIN Symbol Type Description
173 YUV6 Output Video data output bit 6
174 ICE Input,pull down Microcontroller ICE mode enable
175 FS1 output
176 VSYN Inout Vertical sync / GPIO16
177 YUV7 Output Video data output bit 7
178 DVSS Ground Ground
179 HSYN Inout Horizontal sync / GPIO15
182 DVDD2 Power 2.5V power
185 DVDD3 Power 3.3 power
186 XTALO Output Crystal output
187 XTALI Input Crystal input,27MHz
188 PRST Input,pull down Power on reset input, active high
189 DVSS Ground Ground
195 SDATA Output RF serial data input
196 SDEN Output RF serial data latch enable
197 SLCK Output RF serial clock output
198 BDO Input,pull down Flag of defect data status input
199 ADCVSS Ground Ground
200 ADIN Analog input General A/D input
202 TEZISLV Analog input Tracking error zero crossing low pass input
203 TEI Analog input Tracking error input
204 CSO Analog input Central servo input
205 FEI Analog input Focus error input
206 RFLEVEL Analog input Sub beam add input or RFRP low pass input
207 RFRP_DC Analog input RF ripple detect input
208 RFRP_AC Analog input RF ripple detect input (through AC coupling)
209 HRFZC Analog input High frequency RF ripple zero crossing
210 PWMVREF Analog input A reference voltage input for PWM circuitry.A typical value of 2.8v
211 PWM2VREF Analog input A reference voltage input for PWM circuitry.A typical value of 1.4v
212 ADCVDD3 Power 3.3V power
215 RFIN Analog input Negative input of RF differential signal
216 RFIP Analog input Positive input of RF differential signal
MT1336
GENERAL DESCRIPTION
MT1336 is a high performance CMOS analog front-end IC for both CD_ROM driver up to 48xs and DVD-ROM driver up
to 16xs. It also supports DVD-RAM read up to 4xs Version 2. It contains servo amplifiers to generate focusing error,
3-beam tracking error, 1 beam radial push-pull signal, RF level and SBAD for servo functions. It also includes DPD
tracking error signal for DVD_ROM application. For DVD-RAM disks, there are also Differential Push-Pull (DPP) method
for generating tracking signal and Differential Astigmatic Detection (DAD) for processing focusing signal. Programmable
equalizer and AGC circuits are also incorporated in this chip to optimize read channel performance. In addition, this chip
has dual automatic laser power control circuits for DVD-ROM (DVD-RAM) and CD-ROM seperately and reference
voltage generators to reduce external components. Programmable functions are implemented by the access of internal
register through bi-directional serial port to configure modes selection.
FEATURES
. RF equalizer with programmable f
. MT1336 supports at least eight different kinds of pick-up heads with versatile input configuration for both RF input stages
and servo signal blocks.
. Versatile on-line AGC.
. 3 beams tracking error signal generator for CD_ROM application.
. One beam differential phase tracking error (DPD) generator for DVD_ROM application.
. Differential push pull tracking error (DPP) generator for DVD_RAM application.
from 3MHz to 70MHz and programmable boost from 3db to 13db.
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. Focusing error signal generator for CD-ROM, DVD-ROM and DVD-RAM (DAD method).
. RF level signal generator.
. Sub-beam added signal for 3 beams CD_ROM.
. One beam push-pull signal generator for central servo application.
. High speed RF envelop detection circuit with bandwidth up to 400KHz for CD-ROM.
. Defect and Blank detection circuits
. Dual automatic laser power control circuits with programmable level of LD monitor voltage.
. Vref-1.4V voltage and V2ref=2.8V voltage generators.
. V20=2.0V voltage for pick-up head reference.
. Bi-directional serial port to access internal registers.
. 128-pin LQFP
Block Diagram…………………………………..P.3
Pin Assignment and Description………………..P.4-9
Functions
1.) RF Path Description………………….P. 10-13
2.) Servo Signal…………………………..P. 14-17
. Focusing Error
. Central Servo
. Tracking Error
. RFLVL & SBAD (LVL)
3.) ALPC & RFRP ( RF Ripple)………….P. 18
4.) WOBBLE Detection…………………..P. 19
Command Access Timings………………………P. 20
Programmable I/O ………………………………P. 21
Register
1.) Register Map………………………….P. 22-24
2.) Register Description………………….P. 25-50
MT1336 PIN DESCRIPTIONS
Pin Numbers Symbol Type Description
LQFP128
RF Flag interface
23 DEFECT Digital input Flag of bad data output status
RF SIO interface
56 SCLK Digital input RF serial clock input
58 SDEN Digital input RF serial data enable
59 SDATA Digital IO RF serial data IO
60 RST Digital input Reset (active high)
55 XCK16M Digital input 16.9MHz for verification
RF SERVO interface
40 UDGATE Digital input Control signal for DVD-RAM
41 IDGATE Digital input Control signal for DVD-RAM
38 VFO13 Digital input DVD-RAM Header signal
RF
100 DVDA Analog input AC coupled DVD RF signal input A
99 DVDB Analog input AC coupled DVD RF signal input B
98 DVDC Analog input AC coupled DVD RF signal input C
97 DVDD Analog input AC coupled DVD RF signal input D
95 DVDRFIN Analog input AC coupled DVD RF signal input RFIN
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