Component Nomenclature

position and shaking it, using a circular motion. If this

Another frequent cause of wrong numbers is

jiggling the hookswitch before dialing. This can result

does not work, then strike the transmitter end of the

in a series of pulses similar to those sent out by the

handset sharply with the palm of your hand. If the

dial. Also, keeping the dialing finger on the dial while

granules cannot be loosened, replace the transmitter.

it is returning to its normal position may result in

Another cause could be loose connections or dirty

wrong numbers.

contact springs in the transmitter cup. If replacing the

NOISY CONNECTIONS.-- Noisy connections

transmitter or cleaning the transmitter cup contact

are caused by worn handset or deskset cords, loose

springs does not correct the problem, check the

connections in the telephone set, partial shorts or

transmission network. If there is a problem with the

grounds on the line, or noisy transmitter units. Check

transmission network, replace it.

the telephone set cord as described earlier, and replace

WEAK RECEPTION.-- If a telephone has poor

the cord as necessary. Tighten loose connections and

or weak reception, the trouble may be caused by a

clear any shorts or grounds on the line. If the problem

is found to be in the transmitter unit, replace it.

weak transmitter, a worn receiver cord, loose

connections inside the handset, or a problem in the

SIDETONE TOO LOUD.-- When you have a

transmission network. If the problem is loose

loud sidetone in the receiver of the handset, the

connections, tighten the connections. If the problem is

problem is in the transmission network, which you

a defective component, replace the component.

should replace.

CAN TRANSMIT BUT CANNOT RE-

TYPE G TELEPHONE SET

CEIVE.-- When a telephone can transmit but cannot

(VERSION 2)

receive, the problem is usually in the hookswitch or in

the receiver unit. The fault could also be caused by a

The type G (version 2) telephone set is very

shorted transmitter unit or a shorted contact of the dial

similar in appearance and operation to the type G

shunt springs. After you isolate the problem, replace

(version 1) set; however, slight differences do exist

the defective component.

between them. The principle differences are

CAN RECEIVE BUT CANNOT TRANS-

component nomenclature, the handset holder and

MIT.-- When a telephone can receive but cannot

retaining mechanism, and the internal circuitry of the

transmit, check the transmitter unit as you would for

telephone set. The following paragraphs will only

poor transmission. If the transmitter is found to be

discuss the features of the version 2 set that are

defective, replace it. If the transmitter is not defective,

different from the version 1 set.

replace the transmission network.

Component Nomenclature

RINGER DOES NOT SOUND.-- If the ringer at

a called station does not ring, the fault could be caused

The components of the type G (version 2) set are

by an open ringer coil or capacitor, or reversed or loose

identified in figure 6-12, views A and B. Several

connections at the ringer terminals. Also, the ringer

components of the version 2 set serve the same

will not ring properly if the ringer is not properly

function as components of the version 1 set, but are

adjusted, if the gongs have become loose, or if the

identified by different names. For example, the

position of the gongs has shifted with respect to the

network assembly in the version 2 set serves the same

clapper. If the ringer does not sound at all, you should

purpose as the transmission network in the version 1

first check the connections and correct them if they are

set.

reversed or tighten them if they are loose. If the cause

of the problem is a defective component, replace the

Handset Holder and Retaining

component. If the ringer is ringing improperly, adjust

Mechanism

the ringer as described earlier.

WRONG NUMBERS.-- The most frequent

The handset for the version 2 set is equipped with

cause of wrong numbers is the dial speed being too

an internal latching mechanism and a latch release

fast or too slow. If the dial speed is incorrect, adjust it

button. The latching mechanism is used with the hand-

as described earlier. If adjusting the speed does not

set latch stud to retain the handset in its cradle. The latch

release button is located on the side of the handset. If

correct the problem, replace the dial.

6-14