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The document was usefull, and it was exactly what I was looking for.
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OK?..manual is complet and helpfull... for repairing such a old and rare boombox like JVC PCM it is necessary...
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Super Anleitung. Ordentliche Auflösung. Das ganze noch in Deutsch wäre zu schön. Alle Datenblätter sind sauber Kopiert und alle Leitungswege sind sauber ausgeführt
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Thanks God for the internet and thanks for the service like this - proffessional solution on time.
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About the service it's very fast and reliable. About the manual the quality is high enough to read even the tiniest details on the wiring diagrams so you can't ask much more than that, let it alone for a manual of a product from 20 years ago. Thank you, very satisfied.
IC, LA9241ML
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 Pin Name FIN2 FIN1 E F TB TE� TE TESI SCI TH TA TD� TD JP TO FD FD� FA FA� FE FE� AGND SP SPI SPG SP� SPD SLEQ SLD SL�, SL+ JP�, JP+ TGL TOFF TES HFL SLOF I/O O O O O I O Description For the connection of the pickup photodiode. Addition to the FIN1 pin creates an RF signal and subtraction from it create an EF signal. For the connection of the pickup photodiode. For the connection of the pickup photodiode. Subtraction from the F pin creates a TE signal. For the connection of the pickup photodiode. Inputs the DC components in the TE signal. For the connection of a resistor which sets the gain of the TE signal between this pin and the TE pin. O I I I O I O I O O I O I O I O O I I I O I O I I I I O O I TE signal output. TES (track error sense) comparator input.The TE signal is passed through a BPF. Shock detection input. Sets the time constant for the tracking gain. TA amp output. Composes the tracking phase compensation constant between the TD and VR pins. Sets the tracking phase compensation. Sets the amplitude of the tracking jump signal (kick pulses). Tracking control signal output. Focusing control signal output. Composes the focusing phase compensation constant between the FD and FA pins. Composes the focusing phase compensation constant between the FD- and FA- pins. Composes the focusing phase compensation constant between the FA and FE pins. FE signal output. For the connection of a resistor which sets the gain of the FE signal between this pin and the TE pin. Ground of analog signals. Single-ended output of the signals input to the CV+ and CV- pins. Spindle amp input. For the connection of a resistor which sets the gain in the spindle 12cm mode. For the connection of the spindle phase compensation constant with the SPD pin. Spindle control signal output. For the connection of sled phase compensation constant. Sled control signal output. Sled feed signal input from the microprocessor. Tracking signal input from the DSP. Tracking gain control signal input from the DSP. Low gain when TGL is H. Tracking off control signal input from the DSP. Off when TOFF is H. TES signal output to the DSP. The HFL (high frequency level) signal is used to judge whether the main beam is positioned on the pit or on the mirror. Sled servo off control input.
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