View Sony CMT-C7NT / SA-C7 Service Manual online
COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS
APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS
PUBLISHED BY SONY.
2 cm dia., balance drive
The notice is shown on both Warranty Card and Repair Service column of operation manual, telling to bringing in both
of the equipment (HCD-C7NT) and speaker system (SA-C7) together to service station when service (repair) is needed.
When only speaker is brought in for service, check its operations by supplying both the power and the signal to the AMP
board of the speaker as shown below.
1.Perform connection as shown below.
polarities of positive and negative polarities. However, the two units of the DC regulated power supply that supplies
only a single output voltage can also be used. (See the figure below.)
Output frequency : 1 kHz
After that, input the output signal of the audio signal generator as shown.
The special screwdriver (Sony part code No. 7-640-005-55) of star type (six star type) is required to remove the front
• All capacitors are in µF unless otherwise noted. p: pF.
no mark : AUDIO
have some differences from the original one.
are seldom required for routine service. Some
delay should be anticipated when ordering these
in the exploded views are not supplied.
packing materials are given in the last of this