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Service manual very complete and clear. It was very helpfull for my work.
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This is the 2nd time I download manuals from this website and I can say it's what I was expecting. It contains schematic, layout (decent quality), short description, parts and dissasembly instructions. I recomend it for anyone who wants to repair/modify this device.
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Very useful Service Manual! With it I was able to identify the damaged pots in my old amplifier, purchase the adequate replacements and make myself the repair.
I have again my old amplifier, still a very good one that I will keep for as many years as I can!
Thanks to Owner Manuals!
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Good price for the manual and easy to locate on the site and download. Plus, just like the original. Thanks a lot.
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Genuine Service Manual. Link was available in less then an hour or so. Service Manual contains assembly, PCB layout, complete circuit diagram, Components list etc
IC DESCRIPTION-2/3 (LC78622NE)-1/2
Pin No. 1 2 3 4 5 6 7 8 9 10 11 12, 13 14 15 16 17 18 19, 20 21 22 23 24 25 26 27 28 29 30 31 32, 33 34 35 36 37 38 39 40 41 42 Pin Name DEFI TAI PDO VVSS ISET VVDD FR VSS EFMO EFMIN T2 CLV+, CLKV/P HFL TES TOFF TOL JP+, JPPCK FSEQ VDD SL+ SL� PUIN RW EMPH C2F DOUT T3, T4 N.C. MUTEL LVDD LCHO LVSS RVSS RCHO RVDD MUTER I/O I I O � I � I � O I I O O I I O O O O O � O O � I O O O O I � O � O � � O � O R-channel 1-bit DAC. L-channel 1-bit DAC. For PLL. Description Defect sense signal (DEF) input pin. (Connect to 0V when not used). Test signal input pin with built-in pull-down resistor. Be sure to connect to 0V. Phase comparator output pin to control external VCO. GND pin for built-in VCO. Be sure to connect to 0V. Pin to which external resistor adjusting the PD0 output current. Power supply pin for built-in VCO. Pin for VCO frequency range adjustment. Digital system GND. Be sure to connect to 0V. For slice level control. EFM signal output pin. EFM signal input pin. Test signal input pin with built-in pull-down resistor. Be sure to connect to 0V. Disc motor control output. Three level output is possible using command. Rough servo or phase control automatic selection monitoring output pin. Rough servo at H. Phase servo at L. Track detect signal input pin. Schmidt input. Tracking error signal input pin. Schmidt input. Tracking OFF output pin. Tracking gain selection output pin. Gain boost at L. Track jump control signal output pin. Three level output is possible using command. EFM data playback clock monitoring pin 4.3218 MHz when phase is locked in. (Not connected) Sync signal detection output pin. H when the sync signal which is detected from EFM signal and thesync signal which is internally generated agree. (Not connected) Digital system power supply pin. Moves the sled to outer circumference. Moves the sled to inner circumference. Not connected. CD pickup inner switch detection. Read, wright signal. De-emphasis monitor output pin. De-emphasis disc is being played back at H. (Not connected) C2 flag output pin. (Not connected) DIGITAL OUT output pin. (EIAJ format). (Not connected) Test signal input pin with built-in pull-down resistor. Be sure to connect to 0V. Not connected. Set the pin to open. L-channel mute output pin. (Not connected) L-channel power supply pin. L-channel output pin. L-channel GND. Be sure to connect to 0V. R-channel GND. Be sure to connect to 0V. R-channel output pin. R-channel power supply pin. R-channel mute output pin. (Not connected)
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