Akai DV-P4575SDK Service Manual page 44

2. INDEX
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Hermoine GRANGER Revision-A3
Layout----Hermoine GRANGER Revision-A3B2
Background
This design is the Servo-MPEG Board of COSMIC Technology Co., LTD. DVD Complete Loader module DCL34MK-72/75, which is thecombination of this PCBA & Cosmic DV-34 Pickup Loader.
This design is based on MTK second generation MT1379xE super integration DVD chipset. The MT1379xE is built upon MTK's proven previous
MT1369xE super integration chipset. It supported all MT1369xE generation features plus new features including Progressive Scan output with
built-in very high performance 6-channdel 12 bit TV-Encoder (Macrovision compliance) and Dolby ProLogic II surround sound processing. With
the chipset's highest integrity, a complete DVD design can now be implemented with minimum chip count & external components.
FSG@COSMICTEC.COM
System Clock Requirement
MT1379xE only requires a single 27MHz clock to operate. This clock can either be generated externally and feed into pin 187 or thru a 27MHz crystal
attached to pin 186 and 187. This 27Mhz will be used for all video processing reference. In addition, on chip PLL circuits generate all operating
frequency for the integrated MPEG decoder RISC+DSP, Read Channel DSP+Servo circuitry, 8032 core system controller & audio clock.
Memories Required
The current MT1379xE requires 8M bit Flash for DVD code storage & slow speed code running. For SDRAM, only 4M byte space is required. This
provides a lower cost option to use 2 pieces 1Mx16 SDRAM with 32bit data width. The other option is to use one single piece of higher density
4Mx16 SDRAM & the extra memory space will be used as track buffer for better anti-shock function.
System Configuration
CHIP FUNCTION
MT1379xE Super integration chip that handles all Servo, Read Channel, DVD Decoding and system control. Built-in TV-Encoder direct drives a TV set.
MT1336E Analog front end CMOS IC for MT13x9E DVD chip.
32/64MBit SDRAM Data storage and frame buffer
8Mbit FLASH Program storage
24C02 SERIAL EEPROM System setup configuration storage
DA1196/DA1131 6-Channel/2-Channel AudioDAC
BA5954FP DVD pickup actuators & Traverse motors driver
BA6208F Disc loading tray motor driver.
AUX I/O Port FUNCTION
8032 Core P1.2 Reserved for 16Mbit Flash Bank Switch Control
8032 Core P1.3 Front Panel Display Driver Serial Interface Strobe Signal
8032 Core P1.4 Front Panel Display Driver Serial Interface Data Signal
8032 Core P1.5 Sapre
8032 Core P1.6 I2C Bus Serial Clock & Front Panel Display Driver Serial Interface Clock Signal
8032 Core P1.7 I2C Bus Serial Data Signal
8032 Core P3.0 Spare
8032 Core P3.1 Spare
8032 Core P3.2 8032 Core Interrupt#0, Chip Intrenal Use.
8032 Core P3.3 8032 Core Interrupt#1, Infrared Remote Control Serial Data Receive.
8032 Core P3.4 8032 Core RS-232 port RxD Signal.
8032 Core P3.5 8032 Core RS-232 port TxD Signal.
8032 Core P3.6 8032 Core Write Enable Signal, Chip Internal Use.
8032 Core P3.7 8032 Core Read Enable Signal, Chip Internal Use.
EAUXx FUNCTION
MT1379E Pin 157 Audio Output MUTE Control Signal.
MT1379E Pin 158 Not Used.
MT1379E Pin 175 SCART Control Signal FS1.
MT1379E Pin 176 Video Horizontal Synchronization Signal HSYNC# or SCART Control Signal RGB/Video Switch.
MT1379E Pin 177 MIC MUTE Control Signal.
MT1379E Pin 179 Video Vertical Synchronization Signal VSYNC# or SCART Control Signal FS0.
MT1336E IO0:4 Not Used
MT1336E IO5 Disc Loading Tray In Position Limit Switch Detect.
MT1336E IO6 Disc Loading Tray Out Position Limit Switch Detect.
MT1336E IO7 Pickup Head Home Position Limit Switch Detect.
MT1336E IO8 Motor Driver Stand-by Control.
MT1336E IO9 ENDM
MT1336E IOA Pickup Head CD/DVD Switch.
MT1336E IOB Disc Loading Tray Close Drive Signal.
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Servo-MPEG Board of MAXITECH Complete Loader DCL34MK72/75MT1379xE for Cosmic DV-34 Pickup Loader
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Revision History
Revision-A1
Base on MTK Reference Design COMMON79_HD60_V2,Re-sized for Complete Loader PCB Dimension Requirement.
Revision-A2
1. Add Audio ADC, DA1196 Software Control Mode Option.
2. 1Mx16 SDRAM Connection Data DQ[16:31] Changed.
PCB Layout GRANGER-A2B1
Revision-A3
1. Based on Rev-A2, Video Output Buffer Added.
2. VFD Interface I/O Changed.
3. Fixed Some KnownErrors.
PCB Layout GRANGER-A3B2
Revision-A4
1. Based on Rev-A3, VFD Interface STB Signal Changed from P1.2 to P1.3.
1. Some Ferrite Beads on Power Supply Path Changed fromSMD0805 to SMD1206.
PCB Layout GRANGER-A4B3
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