Sony ICF-8 Service manual

ICF-18

SERVICE MANUAL

SPECIFICATIONS

US Model

Canadian Model

AEP Model

UK Model

E Model

Austr alian Model

SECTION 1

GENERAL

This section is extracted from instruction manual.

MICROFILM

FM/AM RADIO

SECTION 2

DISASSEMBLY

Note: Follow the disassembly procedure in the numerical order given.

CABINET (REAR)

screw

(P 3

10)

three claws

Remove the battery case lid

to direction of the arrow.

two screws

14)

(P 3

KNOB (VOL), KNOB (TUNE)

knob (tune)

screw driver

two claws

lug

cabinet (rear)

knob (vol)

screw driver

knob (tune)

– 2 –

knob (vol)

two claws

SECTION 3

FM RF SSG

22.5 kHz frequency deviation by 400 Hz signal Output level: as low as possible

+ –

level meter

earphone jack

set

FM antenna terminal

Ω

DIAL POINTER SETTING

SECTION 4

ELECTRICAL ADJUSTMENTS

Note: Follow the assembly procedure in the numerical order given.

Note: When take off the pointer,

remove to direction of the arrow

pointer

Turn the VC gear

fully in the arrow direction.

Insert the pointer to the gear

fitting the concave position of the pointer to the convex position of the

ear.

Slide the pointer

to the inner part.

0dB=1 µV

[FM Section]

Setting:

Band select switch: FM

[AM Section]

Setting:

Band select switch: AM

Put the lead-wire

AM RF SSG

30% amplitude modulation by 400 Hz signal Output level: as low as possible

antenna close to the set.

set

Ω

earphone jack

level mete

+ –

Repeat the procedures in each adjustment several times, and the frequency coverage and tracking adjustments should be finally done by the trimmer capacitors.

FM FREQUENCY COVERAGE ADJUSTMENT