Bogen-TP160-Operation-Service-Manual.pdf

EBOGEN

MODEL TP160

INSTRUCTION MANUAL

AM/FM TUNER

OPERATINGINSTRUCTIONS

POWER

Depress POWER ON button to turn on tuner. Turn off

tuner by depressing button again to release it to the out

position.

knob until pointer indicates desired station on FM (top)

dial. Carefully adjust TUNING knob until needle on tuning

meter is at the center of the tuning dial, exactly on the

circle above the letters “FM”.

AM RECEPTION

Depress AM button. Turn TUNING knob until pointer

indicates desired station on AM (bottom) dial. Adjust TUN-

ING knob until needle on tuning meter shows maximum

deflection to right.

NOTE

Muting removes the annoying noise between FM

stations. The muting circuitry may prevent the

receiver from distinguishing a very weak signal

from interstation noise. To tune in very weak

stations, defeat the mute circuit by releasing

the FM MUTE switch to the out position.

FM RECEPTION

Depress FM and FM MUTE buttons. Turn TUNING

SPECIFICATIONS

FM TUNER SECTION

TUNING RANGE: 87.5 MHz to 108.5 MHz @ 300 f-I

QUIETING SENSITIVITY: 1.5µV for 30 db @ 72fl

0.5µV for 20 db @ 72n

HARMONIC DISTORTION: 0.3% at 100% modulation.

FREQUENCY RESPONSE: 20-20,000 Hz fldb (after de-emphasis).

AM TUNER SECTION

TUNING RANGE: 530 kHz to 1620 kHz.

LOOP SENSITIVITY: 2µV @ 6db S/N and 60% modulation.

ALTERNATE CHANNEL SELECTIVITY: (±l0 kHz) 40 db.

HARMONIC DISTORTION: Less than 1% @ SO% modulation

HUM AND NOISE LEVEL: 70 db below 100% modulation.

MISCELLANEOUS

ALTERNATE CHANNEL SELECTIVITY: 60 db. LHFM

DETECTOR BANDWIDTH: 900 kHz.

CAPTURE RATIO: 1.9 db.

IMAGE REJECTION: 60 db.

I.F. REJECTION: 85 db.

CROSS MODULATION REJECTION: 80 db.

ANTENNA: 3OOfI balanced; 720 unbalanced or built-in line.

AUDIO OUTPUT: Adjustable (rear panel), 0-1.2V

OPERATING CONTROLS: Selector (Power, AM, FM, FM

Mute), Tuning.

POWER CONSUMPTION: 60W @ 120 vac, 6OHz

OVERALL DIMENSIONS: 14-l/2” W x 3-3/4” H x 12” D

RACK INTERIOR DIMENSIONS: 14” W x 3-l/4” H x 11” D

WEIGHT: 9-l/2 Ibs.

LEAR SIEGLER, INC.

PRlNTED IN U.S.A.

10-70A

BOGEN DlVlSION

PARAMUS, N. J. 07652

54-5516-01

INSTALLATION INSTRUCTIONS

UNPACKING

NOTE

This paragraph does not apply to tuners shipped

as a part of a Bogen Centralized School Sound Sys-

tern console or rack.

If the Model TP160 AM/FM Tuner is not part of a Bogen

Centralized School Sound System console or rack, care-

fully unpack the carton and inspect the unit for damage.

If a unit shipped to you proves to be damaged, make an

immediate claim with the shipping carrier. If the unit was

picked up directly from a dealer or distributor, make any

damage claim directly to the seller without delay.

Figure 1 - Rack Mounting With Model RPK-31 Brackets

RACK INSTALLATION

NOTE

HI-Z ANTENNA WIR

This paragraph applies onlyto tuners which will

be installed in a 19”equipment rack.

The Model TP160 may be installed in a standard 19” equip-

ment rack by using Model RPK31 rack mounting brackets.

Remove the four screws securing the side of the cover.

Do not remove the cover. Install the brackets as shown

in figure 1, securing them to the tuner with the four screws

supplied with the brackets. Each bracket has two elongated

holes on three-inch centers for fastening to a standard 19”

equipment rack.

GND

Figure 2 - Connecting AM Antenna

CONNECTING AM ANTENNA

An external antenna must be installed on any Model

TP160 which will be used to receive AM broadcasts. Con-

nect the antenna as shown in figure 2.

Connecting To External TV Antenna

CONNECTING EXTERNAL FM ANTENNA

For optimum performance, a separate FM antenna is rec-

ommended. If a TV antenna must be used for both FM and

TV reception, install an FM signal splitter at the end of the

transmission line, as shown in figure 4.

IMPORTANT

Always disconnect the FM Line Antenna

when using an external FM antenna.

The Model TP160 has an internal FM Line Antenna which

may be used for receiving FM broadcasts. For improved

reception, particularly in weak signal areas or for tuners

mounted in consoles or racks, installation of an outdoor FM

or “T” antenna is necessary. If you are installing a standard

300-ohm antenna system, connect the twin-lead transmission

line as shown in figure 3a. If conditions require use of a

coaxial transmission line, such as RG-11/U or RG-59/U,

connect the cable as shown in figure 3b. Coaxial cable must

be used when the transmission line is run in conduit.

LEVEL CONTROL

Model TP160 AM/FM tuners shipped with Bogen Cen-

tralized School Sound System consoles or racks have the

LEVEL control preset to the proper output for the booster

amplifier. Tuners shipped separately have the LEVEL con-

trol set for maximum output, which is 1.2 volts.

To decrease the audio output from the tuner, turn the

LEVEL control counterclockwise. To increase the audio

output, turn the LEVEL control clockwise.

MAINTENANCE

There are no user serviceable parts inside

the unit and removal of the dust cover pre-

as follows:

a) Remove front panel by pulling off TUNING knob and

removing two Phillips-head screws.

b) Connect dial cord at drum hook marked START in

diagram.

c) String dial around nylon pulleys and tuning shafe to

drum hook marked FINISH in diagram. Make certain cord

winds around tuning shaft from rear toward front, as shown.

d) Attach end of cord with tension spring, making certain

that spring applies enough pressure to prevent cord from

slipping.

e) Tune in a known station and attach dial pointer at proper

position. Before securing pointer, twist cord as shown in

diagram so cord will exert a slight pressure toward panel

bracket and away from dial glass.

servicing should be attempted only by a

BOGEN SERVICE

We are interested in your Bogen tuner for as long as you

have it. If trouble ever develops with your unit, please do

not hesitate to ask our advice or assistance. Write to Ser-

vice Department, Bogen Division, Lear Siegler, Inc., P.O.

Box 500, Paramus, New Jersey 07652.

When communicating with us, give the model number

and serial number of your unit. Describe the difficulty

encountered and the effects each operating control has

upon the trouble symptoms. Include details on electrical con-

nections to associated equipment, and list such equipment.

When we receive this information, we will send you service

information if the trouble appears to be simple. If the trouble

requires servicing, we will send you the name and address

of the nearest Bogen authorized service agency to which you

can send your unit for repairs.

REPLACING DIAL LAMP. Remove front panel as described

in step a), above, and replace lamp with 6.3V No. 12 bulb

(Bogen Part 94-0175-01).

REPLACEMENT PARTS

Most components used in the Model TP160 are avail-

able through all reputable parts jobbers. The parts listed

here are available from Bogen distributors, service agencies

or directly from the factory.

When ordering parts from Bogen, specify the part num-

ber and description, as listed below. Also give the Model

TP160 and the Series designation, which is a letter followed

by numbers stamped or screened on rear of the chassis.

When ordering a part for the PC Board, also give the PC

Board component number, which is 45-9764-01.

When shipping your unit, pack it carefully using the

original shipping carton, or a similar container and filler

material, to prevent damage in transit. Send the unit, fully

insured and prepaid, via railway express or United Parcel.

Do not ship via parcel post unless so instructed.

DIAL CORD RESTRINGING. Refer to figure 5 and proceed

PULLEY (SIDE VIEW .

POINTER

(FRONT VIEW)

C74--1744

* PROPER LENGTH WHEN SPRING IS STRETCHED TO I’:

Figure 5 - Dial Stringing Diagram

Ref. No.

Part No.

Description

Ref. No.

Part No.

Description

45-9764-01 RF, IF Component Board Assy,

Complete

96-5153-01

Transformer, 2nd AM IF

965157-01 Transformer, FM IF

96-5151-01 Transformer, FM Discriminator

Cl3

Cl4

c25

C26

C30

c31

C35,36

c37

C40

79-005-044 Capacitor, Electrolytic, 2µF, 25 V

79-209-001 Capacitor, 5pF, 500 V

79-008-057 Capacitor’50 µ F, 50 V

78-221-121 Capacitor, 470pF

78-221-116 Capacitor, 180pF

79-005-049 Capacitor, 25 µF, 35 V

78-221-113 Capacitor, 1OOpF

78-250-005 Capacitor, .06µ F, 50 V

78-201-099 Capacitor, 6.8pF, 5%

Chassis Electrical Parts

ClOl-Cl04 78-201-115 Capacitor, 15OpF, 500 V

Cl07

78-200-100

Capacitor, 15pF, 1400 V

Cl08

79-005-062 Capacitor, Electrolytic,

500µF, 50V

Capacitor, Electrolytic,

Cl09

79-005-054

700µ F, 35 V

Capacitor, Electrolytic,

(Same as C26)

(Same as C13)

Capacitor, Electrolytic,

25µF, 25V

Cl10

79-005-039

1000µF, 15V

Diode, lOOmA, 150 PIV

Diode, Zener, 12 V, 1 W

Lamp, Dial

Coil, RF Choke, 3.9 µ H

Coil, AM Antenna

Coil, RF Choke, 1µ H

Meter, Tuning

Control, LEVEL

Assembly, Pushbutton Switch

Switch, SPST, 3 A, with Cover

Transformer, Power

79-005-049

CRlOl, 10296-5109-01

CR103 96-5248-04

1101,102 94-0175-01

LlOl, 102 95-5148-01

L103 95-5159-01

L104 95-5015-01

Ml01 94-1309-01

R107 77-001-467

SW102-104 81-004-053

SW101

c41

C46

CR1,4

CR2,3

FL-l, 2

79-005-055 Capacitor, Electrolytic, 4µF, 50 V

96-5093-02

96-5093-01

78-959-001

(Same as C3)

Diode, lN541

Diode, lN542, Matched Pair

Ceramic Filter, FM IF (Specify

Color Code)

FL-3

95-5158-01

Mechanical Filter, 455 KHz

Integrated Circuit, 1st FM IF .

Integrated Circuit, 2nd FM IF

Coil, Choke, 56µ H

FM Tuner Assembly

Transistor, 2N5127

Transistor, 2N5126

Transistor, BC147B

Transistor, 2N5089

Control, Mute Adj., 47 K

Transformer, AM Oscillator

Transformer, 1st AM IF

IC-1

96-5238-02

81-003-049

IC-2

96523801

TlOl

83-750-000

95-5146-01

MPl

94-1277-01

Q1, 2

96-5221-01

Mechanical Parts

96-5235-01

Q3,4

12-4503-01

Dial Cord

96-5237-01

12-4165-01

Dial Glass

Q6,7

96-5213-01

02-9003-08 Dial Spring

R90

77-001-691

22-5234-01 Cover

95-5156-01

14-9064-01 Foot, Cover

95-5152-01

03-0629-02 Knob, Tuning

ALIGNMENT

The following instruments (or equivalent) are required

for a complete alignment of the receiver.

DC VTVM, RCA WV98-C

AC VTVM, HP 400D

AM Signal Generator, Measurements Corp 65-B

FM Sweep Generator, Measurements Corp 88 or Boonton

Radio Corp 202H

FM Alignment

To align the FM section, follow the procedure given in

Table II. See figure 7 for location of adjustments.

FROM

GENERATOR (25A)

AM Alignment

To completely align the AM section, start with the last

AM IF transformer and work back toward the antenna. In

order to limit the effect of the AGC circuit, continually

reduce the generator signal level to the minimum required

for an output indication. Make the adjustments listed in Table

I. See figure 6 for location of alignment adjustments.

15on

A74-1479-01

Figure 6 - Dummy Antenna for FM Alignment

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