LDP-1450 (US, Canada)

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EMU Infos
dumper K1ngArth3r, f205v, caius
date 60/10/2019
PCB Infos
name 1677
description LDP-1450 (US, Canada)
year 1990
manufacturer Sony


Technical references


QTY Type clock position function
1x HA12127NT AU-80 ic201 stereo FM demodulation - SDIP56-600mil
1x RC4558D - AU-80 ic202 Op-Amp amplificatore - DIP8-300mil
4x RC4558M - CB-31 ic001-002-004-005 Op-Amp amplificatore - SOIC8-300mil
2x unknown CB-31 ic006-007 SOIC16-300mil
1x UPC358C - DC-40 ic701 Dual Operational Amplifier
2x SN74LS221N MB-40 ic1, ic103 Dual Monostable Multivibrators - DIP16-300mil
1x RC4558D - MB-40 ic002 Op-Amp amplificatore - DIP8-300mil
1x SN74HC86AN MB-40 ic3 Quadruple 2-Input Exclusive-OR Gates - DIP14-300mil
2x BA7021 MB-40 ic4, ic6 Video Signal Switcher - SIP9
1x MB89010A MB-40 ic5 8-bit Proprietary Microcontrollers F2MC-8L MB89051 Series (internal ROM not dumped) - DIP22-400mil
1x TC9015P MB-40 ic101 unknown - DIP24-300mil
3x TC4053BP - MB-40 ic102, ic201, ic402 Triple 2-Channel Multiplexer/Demultiplexer - DIP16-300mil
2x SN74HC00AN - MB-40 ic104, ic105 Quadruple 2-Input Positive NAND Gates - DIP16-300mil
1x MB88201H MB-40 ic106 Low End Single-Chip 4-bit microcomputer (internal 512x8-bit MaskROM not dumped) - DIP16-300mil
1x HD14555BP MB-40 ic107 Dual Binary to 1-of-4 Decoder/Multiplexer - DIP16-300mil
1x PA0009 MB-40 ic121 Signal Separator - DIP16-300mil
1x CXD1091S MB-40 ic202 unknown - SDIP48-600mil
1x TC4011BP MB-40 ic203 Quad 2 Input NAND Gate - DIP14-300mil
4x TC4538BP MB-40 ic205, ic206, ic207, ic209 Dual Precision Retriggerable/Resettable Monostable Multivibrator - DIP16-300mil
1x TC4024BP MB-40 ic208 7 Stage Ripple-Carry Binary Counter/Dividers - DIP14-300mil
8x NJM4558S - MB-40 ic301, ic302, ic306, ic309, ic310, ic401, ic405, ic451 Dual Operational Amplifier - SIP9
1x HA11529NT - MB-40 ic313 Laser Disc Player SSP (surround sound processor?) - SDIP42-600mil
1x STA302A - MB-40 ic403 General purpose/3-phase motor drive - SIP8
1x STA303A - MB-40 ic404 General purpose/3-phase motor drive - SIP8
1x NJM2903S - MB-40 ic452 Dual Comparator - SIP9
1x TA7713P - MB-40 ic453 3 Phase Bi-Directional Type Motor Control - DIP20-300mil
1x HD637B01Y0 MB-40 ic901 8-bit Single-Chip Microcomputer - main (internal ROM not dumped, V2.1)
1x D8251AFC MB-40 ic903 Programmable Communication Interface - DIP28-600mil
1x MB88201 MB-40 ic904 Low End Single-Chip 4-bit microcomputer (internal 512x8-bit MaskROM not dumped) - DIP16-300mil
1x HC4040A MB-40 ic905 12-Stage Binary Ripple Counter - SOIP16-150mil
1x MC145406P - MB-40 ic906 Driver/Receiver (RS-232-D) - DIP16-300mil
1x SN74HC00NS - MB-40 ic907 Quadruple 2-Input Positive NAND Gates - SOIP16-150mil
1x MC14011B MB-40 ic908 Quad 2-Input NAND Gate - SOIP14-150mil
1x SN74HC74AN MB-40 ic909 Dual D-Type Positive-Edge-Triggered Flip-Flops - DIP14-300mil
1x CX20106A - MB-40 ic910 Infrared Remote Control Receiver - SIP8
1x oscillator 14.31818 MB-40 X101
1x M51481P VP-21 ic001 Mitsubishi Demodulator (also on player Sony MDP-212) - DIP22-300mil
1x CX20061 VP-21 ic002 DOC Switch (also on player Sony MDP-212) - SIP8
1x CXL5005P VP-21 ic003 CCD 1H Delay Line for NTSC (also on player Sony MDP-212) - DIP14-300mil
1x CXL1004P VP-21 ic101 CCD Delay Line (also on player Sony MDP-212) - DIP24-300mil
1x CXA1018S VP-21 ic102 Error Detector (also on player Sony MDP-212) - SDIP42-600mil
1x SN75107BN VP-21 ic103 Dual Channel Line Receiver (also on player Sony MDP-212) - DIP14-300mil


QTY Type position status


QTY Type position


QTY Type position status
1x M60014-0120FP MB-40 IC902 VQFP80 (24x16)


PCB code function
AC-80 Line Filter
AU-80 Audio (audio PCB)
CB-31 Slide Servo (servo PCB)
DC-40 Power Supply
FP-300 Switch, LED
LD-35 Power LED
MB-40 System Control (main PCB)
MD-42 Slide Motor
MD-43 Skew Motor
MD-44 Loading Motor
PS-250 Power Switch
PW-90 Power Trans
PW-91 Power Trans
VP-21 Video (video PCB)
SW-150 FG Detector
SW-151 In/Out Limit Detector
SW-152 Disc Size Detector
SW-153 Load/Eject End Detector


20191013 update with complete main board description

20191101 update with adaptor's pics - unfortunately it's protected



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