Nakamichi PDP-42 Service Manual Digest Download Page 26

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TDA8709A (Video analog input interface)

TDA9143 (I

C-bus controlled, alingment-free PAL/NTSC/SECAM decoder/sync processor)

TLC2932IPW (High quality locked loop)

IC BLOCK DIAGRAMS

Summary of Contents for PDP-42

Page 1: ...TRICAL PARTS LIST Display Unit 11 6 MECHANICAL ASS Y and PARTS LIST Control Unit 12 7 ELECTRICAL PARTS LIST Control Unit 14 8 PACKAGE ASS Y AND ACCESSORY KIT 17 9 DESK TOP STAND PARTS LIST 17 10 RECOM...

Page 2: ...3 Cautions Warnings 1 Product Safety Notice Parts marked with the symbol in the schematic diagram have critical characteristics Use ONLY replacement parts recommended by the manufacturer It is recomm...

Page 3: ...or Parts Fig 2 1 Front View Fig 2 2 Front View under the DISPLAY BLOCK DISPLAY TUBE COOLING FAN COOLING FAN COOLING FAN FAN A PCB FAN B PCB CONNECTION PCB POWER SW PCB FILTER PCB POWER SUPPLY 2 PCB PO...

Page 4: ...COVER 2 2 3 Removal of the DISPLAY BLOCK 1 Place the DISPLAY PANEL on the sponge pad so that the front is facing down 2 Remove the 4 retaining screws marked on the left side POWER SUPPLY 2 PCB and mo...

Page 5: ...own yet Then connect the upper side of the FRONT COVER to the display block by inserting the two thin metal plates they look like a pair of bookends between the chassis and the FRONT COVER a and b par...

Page 6: ...e Front Panel Block by gently pulling it forward The power button will be disengaged from the Power joint 3 2 Removal Procedures 3 2 1 UPPER COVER 1 Remove five screws and detach the Upper cover from...

Page 7: ...video input and supply a PAL or NTSC color bar signal 1 0 Vp p output level 100 0 75 0 colour bars 2 Connect an oscilloscope to TP81 then adjust VR81 so that the waveform level is 0 66 Vp p as shown 3...

Page 8: ...Unit R554 1 7 0H08892A Panel Corner R554 4 8 0J08683A Angle Panel R554 4 9 0H08894A Power Button R554 1 10 0J08677A Power Button Spring 1 L01 0E04251A ST 3x6 Binding CMT L02 0E04257A BT 3x10 Binding...

Page 9: ...0E04295A ST BID30x05STL BNI L03 0E04251A ST 3x6 Binding CMT L04 0E04276A BID40x06STL BNI L05 0E04271A BID30x06STL BNI L06 0E04280A BID40x30STL CMT L07 0E04251A ST 3x6 Binding CMT L08 0E04273A BID30x0...

Page 10: ...C B Ass y R554 1 B 4 BK10484A Fan B P C B Ass y R554 1 B 5 BK10469A Connection P C B Ass y R554 1 B 6 BK10486A Power Switch P C B Ass y R554 1 B 7 BK10482A REM P C B Ass y R554 1 L01 0E04274A BID30x0...

Page 11: ...442 0B13258A SID 1N4002 N02 2 D443 444 0B12249A SID 1SS133 2 D447 448 0B12249A SID 1SS133 2 D449 450 0B12249A SID 1SS133 2 IC411 0B13300A IC NJM2058M TE2 1 IC412 0B13288A IC BU4093BF E2 1 IC413 0B132...

Page 12: ...T Control Unit 29 15 19 18 25 30 22 16 7 1 21 20 28 17 10 23 6 4 24 9 8 12 3 27 12 27 2 5 14 13 26 11 L09 L09 L05 L09 L09 L06 L06 L05 L05 L07 L12 L13 L14 L06 L11 L03 L07 L07 L10 L06 L06 L06 L07 L06 L0...

Page 13: ...MA DI L 90 30P 1 22 BK10474A Main P C B Ass y R555 1 23 BK10480A REM Sensor 1 P C B Ass y R555 1 24 BK10481A LED P C B Ass y R555 1 25 BK10485A Inlet P C B Ass y Except USA CAN R555 1 BK10487A Inlet P...

Page 14: ...1 IC402 0B13307A IC TDA4665T 118 1 IC403 0B13290A IC CXD2053AM T6 1 IC405 0B13289A IC CXA2119M T6 1 IC406 0B13301A IC TC74HC04AF EL 1 IC407 0B13302A IC TC74HC125AF EL 1 IC408 0B13303A IC TC74HC4052AF...

Page 15: ...401 0B90997A X TAL CXU 3 579545MHz 1 X402 0B90998A X TAL CXU 4 433619MHz 1 X403 0B91045A X TAL HC 49U20P 14 318180MHz 1 Ref No Part No Description Q ty 7 3 Digital P C B Ass y Ref No Part No Descripti...

Page 16: ...7A LED SML78423CTP15 1 D632 633 0B13310A LED SEL5421ETP15 2 D634 635 0B13310A LED SEL5421ETP15 2 D636 637 0B13310A LED SEL5421ETP15 2 D638 639 0B13310A LED SEL5421ETP15 2 D640 0B13310A LED SEL5421ETP1...

Page 17: ...5A AC Cord 200SKP561 AUS 1 0D07244A AC Cord MP2217 KR 1 0D07400A AC Cord 300SKP30 USA CAN 1 0D07401A AC Cord 300SKP4819 EP 1 0D07406A AC Cord 300S OTR 1 0D07407A AC Cord 300SKP300 JPN 1 0D07408A AC Co...

Page 18: ...03A IC TC74HC4052AF 44 0B13306A IC TC9090AF ELP 45 0B13307A IC TDA4665T 118 46 0B13308A IC TDA8709AT 118 47 0B13278A IC TDA9143 48 0B13309A IC TLC2932IPW 49 0B13279A IC 24LC02BT SN 50 0B13280A IC 74F0...

Page 19: ...2C bus clock input 16 SDA I O 12C bus data in out pin 17 23 Vss Digltal ground pin 18 XRST I Reset signal input pin 19 MCON I 12C bus mode select pin L not 12C bus mode 20 VDD Digital power supply pin...

Page 20: ...GRAY 36 FRCOLOR 34 35 OSD 129 OSD DARK 130 OSD FBL 131 DATA 79 86 IC BLOCK DIAGRAMS MI COM INTERFACE I n Variable 1 2 WRITE HORIZONTAL COUNTER READ HORIZONTAL COUNTER WRITE VERTICAL COUNTER READ VERT...

Page 21: ...E 62 66 NCS_GA 105 OE_GA 56 SYNC SIGNAL HANDLE SERIAL PARALLEL CHANGE BRIGHTNESS CONTRAST SHARPNESS MI COM INTERFACE TO EACH BLOCKS GCONA CONFIGURATION 8 16 16 8 8 INT_COL 64 68 IINT_HUE 58 62 CEN 20...

Page 22: ...APACITOR CHARGE CURRENT 8 OSC D V 2 3 4 1 VA VB V2 V2 VCC VCC V1 V1 COMPOSITE SYNC VIDEO INPUT VERTICAL SYNC GND DEFAULT 8 7 6 5 OCD EVEN FIELD INDEX REST BURST GATE BACK PORCH CLAMP LM1881MX Sync Sep...

Page 23: ...31 CLR O This pin turns to L when the power is turned on 34 Avcc 5 V power supply pin for the analog section 35 AVR l 5 V reference voltage input 38 HP SW l This pin turns to H when the headphone jac...

Page 24: ...83 Xl O 87 SHORT l This pin turns to L when the AL 8V is cut off 88 ENC NTSC O NTSC CCIR judge output CCIR H NTSC L 89 DVD2 O This pin turns to L when the DVD2 is selected 90 EUAV3 O This pin turns to...

Page 25: ...25 TC9090AF Multi color 3 line digital Y C separator TDA4665 Base band delay line...

Page 26: ...26 TDA8709A Video analog input interface TDA9143 I2 C bus controlled alingment free PAL NTSC SECAM decoder sync processor TLC2932IPW High quality locked loop IC BLOCK DIAGRAMS...

Page 27: ...nal RCA terminal Audio RCA terminal L R AV 6 Input rear Video S2 Video terminal RCA terminal Audio RCA terminal L R AV 7 Input rear Video S2 Video terminal RCA terminal Audio RCA terminal L R DVD 1 In...

Page 28: ...Dominguez CA 90220 Phone 1 310 631 2122 Fax 1 310 631 2760 Nakamichi Asia 8 F The Grande Bldg 398 Kwun Tong Rd Kowloon Hong Kong Phone 852 2357 6690 Fax 852 2357 6697 Nakamichi Europe 8F Hayes Gate H...