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The purchased manual is an high quality scan of the original Philips paper-based Service Manual. I am very satisfied!
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The purchased manual is an scan of the original Panasonic paper-based Service Manual. Unfortunately the contrast is not perfect, but I am satisfied anyway!
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The purchased manual is an high-quality scan of the original JVC paper-based Service Manual. The Service Manual includes the Owner´s Manual, so you do not have to buy both of them.
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It paid to find this Service Manual, couldn't find it anywhere else. Exactly what I wanted. Received within 24 hours.
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Complete manual with clear schematic diagrams and printed circuit board layouts of two variants of the headset and the transmitter an old and a new version.
Also shows how the headset and the transmitter is opened and how transmitter and receivers can be adjusted and where to measure.
I had no problems to repair the headset using this service manual.
Pin No. 73 74 75 76 77
Pin Name VDD5V VSS CONT6 CONT7 V/*P
I/O � � I/O I/O O
Description Microprocessor interface power supply. (2000pF or more path controller to be inserted at a point nearer to the pin between this pin and GND) Digital ground pin. Must be connected to 0V. General-purpose input/output pin 6. General-pirpose input/output pin 7. Rough servo/phase control automatic switching monitor output pin. �H� for rough servo and �L� for phase servo. Synchronization signal detection output pin. Outputs a high level when the
78
FSEQ
O
synchronization signal detected from the EFM signal and the internally generated synchronization signal agree.
79 80
DEFECT EFMO
I/O O
Defect pin. Which becomes an input pin after reset and can be controlled externally. This becomes the defect monitor pin under control by command. EFM signal output pin.
18
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