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Incredibly clear!!!! Well done, complete and wonderful. It could not better than this!!!!
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Thank You for fast delivery for the sheme.
Everything allright.
Thanks & best regards Franz
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again you did a very good job. It was fast too. Photocopy are really readable and clear
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Probably it never existed a 1081 official service manual from Commodore, it's look more like a NAPCEC service manual & diagrams compilation of the 1084 series and his variants, like the nap6523, 8cm505, 1084S, 1084P and obviously the 1081. It's more complete than other scans and the quality of the scans also are far superior. It has two circuit diagrams variants of the 1081, mono and stereo versions. It doesn't include a diagram for the Philips CM8500 or CM8501, they look like the 1081 but they are slightly different.
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Rapid, clear well done as all the scheme I downloaded from this site. Great job very functional and very useful
KDC-2022/V/202MR/4023
MICROCOMPUTER'S TERMINAL DESCRIPTION
Pin No. Name 43 B.U-DET 44 ACC-DET 45 46 47 48 PS1-0 PS1-1 PS1-2 PS2-0 I/O I I O O O O Description Back up detection terminal ACC detection terminal Power supply IC SW1 control 0 Audio 8V,P-CON Power supply IC SW1 control 1 Audio 8V,P-CON Power supply IC SW1 control 2 P-ANT Power supply IC SW2 control 0 ILL,FM,AM Power supply IC SW2 control 1 ILL,FM,AM 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 BEEP DSI NC NC LOE/LIM SW MO SW LO/EJ M-STOP M-RST M-MUTE RESET REMO R-CLK CH-REQC LOS SW KEY-REQ 12EJE SW Vss0 VDD1 X2 X1 IC XT2 XT1 VDD0 AVREF0 S-METER NOISE PHONE NC AVCONT I I I O O O O O I O I/O O O I I I I I I I BEEP DSI control Not used (out put L) Not used (out put L) CD mechanism down&limit detection CD mechanism loading motor control output CD mechanism loading/Eject switching terminal Stop output to the CD mechanism Reset output to the CD mechanism Mute input from the CD mechanism Reset input from the System microcomputer Remote control input RDS clock input Request input from the changer (new 5L) CD mechanism loading's switch detected Key input detected (11pin L connected to the DATA L) 12cm disc detected H:Light on L:Light off When panel attached,output L When panel detached,flashing at the panel (H/L) FIX model is output L Processing Operation H:power down L:B.U. on H:ACC OFF L:ACC ON
BA4911 SW1 PS1-2 PS1-1 PS1-0 L L L H L () LH H H BA4911 SW2
L L(H) H L H(L) H
Power supply IC output A8V P-CON P-ANT ON ON ON STANBY OFF OFF ON OFF ON ON
L () HL H H
PS2-1
PS2-0
Power supply IC output
ILLUMI ON ON FM AM STANBY ON OFF
49
PS2-1
O
OFF ON
H:Chucking detection L:Normal H:Loading,Eject,Break L:Play H:Eject L:Loading H:Play L:Stop H:Normal L:CD mechanism reset H:mute off L:mute on
Except RDS model : output L H:Changer detection L:Request Except Changer model : output L H:No disc L:DISK IN(Loading Start) H:Key no input L:Key input (edge key data reading start) L:12cm disc
�3 MAIN X'tal oscillating circuit �3 MAIN X'tal oscillating circuit TEST Not used
�3 4.19MHz X'tal connection �3 4.19MHz X'tal connection OPEN
VDD Connected to VDD A/D converter reference voltage control output, connection to the 80pin AVCONT S-meter input FM noise detection input 2way mute Not used (out put L) A/D converter standard voltage control output H:During A/D converter active same timing with PON �3 2.5V or greater:NAVI MUTE 1.0V or less:TEL MUTE Except phone mute model : output L
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