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Das Service Manual war von der ersten bis zur letzten Seite sehr informativ und hilfreich. Die Darstellung aller Teile war klar und der Text gut lesbar.
Vielen Dank, das war nicht der letzte Download bei ownner-manuals.com.
It's a grate service manuals.Have many details and the writing it's so clear.You have all you want in manual,nothing missing,belive me.I'm verry satisfied of this manual.
Great scanned service manual
I will buy again!
The manual describes this product very good. It has the basic things to know and also a more detailed look. Very well made!
An excellent document to assist in the repair of my old personal tape player. It includes full circuit diagrams and physical layout drawings and full instructions on disassembly and fault finding.
Well worth the meagre price.
SP P-CON Switching Circuit
When the SP output from the head unit is connected to SP IN, the power can be switched ON/OFF based on the DC voltage of the SP output. However, As certain haed unit models output DC permanently or generate a click during switching OFF, it is required to provide the capability of previous P-CON switching. A circuit which can perform the switching without using a switch is described below. This circuit performs switching by inhibiting the operation of the S-P-CON circuit when a voltage is applied to the P-CON pin.
Circuit operation description
When the head unit is connected to SP-IN, the DC component in the SP output turns Q38 ON through D32 and R158. When a voltage is applied to the P-CON pin under this condition, Q45 is turned ON via R188, positive feedback is applied by combination of Q45 and Q46, Q45 and Q46 are held at ON, so the voltage at point (A) is almost 0V and the SP-P-CON circuit is not activated. This circuit holds the ON status while the DC voltage from SP is present. Therefore, in this condition, the P-CON circuit continues functioning. To cancel the functioning, the voltage at the SP-IN pin should go 0V.
to P-CON terminal 7.5V power control
No. ITEM INPUT SETTINGS OUTPUT SETTINGS TUNER (RECEIVER) SETTINGS ALIGNMENT POINTS ALIGN FOR FIG.
Connect a cassette receiver or other receiver.
IDEL CURRENT Connect a DC voltmeter to CN3 VR3 After sufficient aging adjust to 2mV
Volume : 0