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Thank you very much for this Service Manual, it helped us a lot to repair the M-4318!
...BUT: The parts list is missing and the free parts katalog on web isn't complete, so now we don't know the part numbers of the defect parts :(
We had to build them out of a working machine, and need the numbers to reorder the missing parts now.
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Very good manual with clear electrical diagrams. Thanks owner-manuals.
;
Great manual, thank you, sony kp46s3 service manual perfectly, i am very happy.
;
Complete original Service Manual in good (scan) quality!
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Very good manual. Plenty of service information including alignment instructions. Clear circuit diagram. Excellent, thank you.
Receiver Section
Connections
RF SG + DC Power Supply J601 Battery Connector HANDSET Unit Dummy Load (150-ohms) + AF Terminal of RT603 DC Voltmeter AC Voltmeter
RF SP Test Point Connector
DC 3.8V
Preset
a) Connect DC power supply to battery connector on the handset unit. b) Turn the DC power supply on while pressing � � � and � # � keys, and keep pressing the keys continuously for approximate 2 seconds. c) Release keys when entering TEST mode 1 with TALK LED lighting and beep.
Alignment Procedure
Step Remarks Press the 4 key to enter the TEST Mode 4. Connect the RF Signal SG: 1mV L615 Generator to the RF test point on the handset MAIN PCB. Make sure that (�47dBm) (Discriminator the frequency is 926.997467 MHz. No modulation Voltage) Connect the DC Voltmeter to the AF Terminal of RT603. Adjust L615 to indicate DC 0.85 V. SG: 1mV (�47dBm) 1 kHz ±8kHz Deviation SG: �6.0 dBµV (�113dBm) No modulation RT604 (RX AF Voltage) RT603 (SQ Point) Connect the RF Signal Generator to the RF test point on the handset MAIN PCB. Make sure that the frequency is 926.997467 MHz. Connect the AC Voltmeter across a 150-ohms dummy to the SP Connector. Adjust RT604 for a 113mV (-19dBV) reading on the AC Voltmeter. Press the 5 key to enter the TEST Mode 5. Make sure that the frequency of RF SG output is 926.997467 MHz. Adjust RT603 to turn to the point where the indication is just vibrated. Preset to Adjustment
1
2
3
Alignment Point Location on Handset Main PCB
Handset PCB
RF Test Point
L615 RT603 J601 RT604
�6�
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