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I am a vintage hifi collector. No way to fix that device without the appropriate service manual...thanks to your site I got it and every thing is easier now. I got the manual right after ordering: fast cheap accurate ... thank you
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Wonderful job clear. Qick fantastic. These people are really good. If even a problem arise they are wonderful assisting you. These scheme is so net despite this is a very old TV. Thank you for everything!!!!!!!!
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Detailed schematic diagram, manual for professionals
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Good service manual,exploded view,adjusment and test point locations,head alignment,mechanical checks and adjusments,all perfect.
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Block diagram,play rec block diagram,adjusments, it's a very good well done repair manual.
Pin No.
36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64
Pin Name
LVDD LCHO LVSS RVSS RCHO RVDD MUTER XVDD XOUT XIN XVSS SBSY EFLG PW SFSY SBCK FSX WRQ RWC SQOUT COIN CQCK RES T11 16M 4.2M T5 CS T1
I/O
� O � � O � O � O
Description
Left channel 1-bit D/A converter power supply. Left channel 1-bit D/A converter output. Left channel 1-bit D/A converter ground. Normally, 0V. Right channel 1-bit D/A converter ground. Normally, 0V. Right channel 1-bit D/A converter output. Right channel 1-bit D/A converter power supply. Right channel 1-bit D/A converter muting output. (Not used) Power supply of crystal oscillator. For the connection of a 16.93MHz crystal oscillator.
I � O O O O I O O I O I I input. I O O O I I I LC78622NE reset input. Test output. Set to open (normally, "L" output.) (Not used) 16.9344MHz output. (Not used) 4.2336MHz output. Test input. A pull-down resistor is incorporated. (Connected to 0V) Chip select input. (Connected to 0V) Test input with no pull-down resistor. (Connected to 0V) Ground of crystal oscillator. Normally, 0V. Subcode block sync signal output. (Not used) C1, C2, single, duplex correction monitor. (Not used) Output of subcodes P, Q, R, S, T, U and W. (Not used) Subcode frame sync signal output. Falls when the subcode is set to the standby state. (Not used) Subcode read-out clock input. Schmitt trigger input. ("L" is applied when not used.) (Connected to 0V) 7.35kHz sync signal output obtained by dividing the oscillator frequency. (Not used) Subcode Q standby output. Read/write control input. Schmitt trigger input. Subcode Q output. Command input from the microprocessor. Command input retrieval clock or subcode retrieval clock input from SQOUT. Schmitt trigger
� 22 �
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