Cb Radio Controls; Cb Operation; Tape Player Operation; Tape Head And Capstan Cleaning - Jeep 1979 CJ-5 Technical & Service Manual

RADIO SOUND SYSTEMS 3V-3
STEREO I N D I C A T O R L I G H T FM P R O G R A M —
A D V A N C E S T A T I O N
TAPE T R A C K S INDICATOR 80250
Fig. 3V-3 AM/FM Multiplex Tape Radio
Tape Head and Capstan Cleaning
One major cause of improper tape player operation is
oxide buildup on the head. During normal operation,
iron oxide particles are loosened from the tape and built
up on the head. This accumulation of oxide can cause
poor playback and some up and down tape travel. The
head and drive capstan should be cleaned whenever the
unit is serviced, or when poor playback or tape travel is
noted.
Cleaning may be done either in the vehicle or on a
service bench. To clean the head, use a cotton swab
moistened with commercially available tape head
cleaner or isopropyl alcohol. Wipe capstan and tape head
dry (fig. 3V-4). If a commercial tape head cleaner is
used, follow the manufacturer's recommended cleaning
procedure.
TAPE
C A R T R I D G E
SLOT
CAPSTAN
SHAFT ERASER
END OF
PENCIL
A N T E N N A
T R I M E R
\ i
(if
LEFT—RIGHT,
BALANCE
USE COTTON SWAB
MOISTENED W I T H
ISOPROPYL (RUBBING)
ALCOHOL-DO N O T USE
CARBON T E T R A C H L O R I D E
I G N I T I O N KEY TO ACC. -
DEPRESS MOTOR SWITCH
WITH ERASER E N D OF
PENCIL
A42257
Fig. 3V-4 Tape Head and Capstan Cleaning Procedure
Tape Player Operation
To operate the tape player, place the tape cartridge,
open tape end first and labeled side up, in the slot and
push in until it is firmly seated. The unit will play the
selection on the inserted tape.
To manually change selections, push in~and release
the left-hand volume control. Each program track will
automatically change and play in succession without
pushing control.
To turn the tape player off, pull the tape cartridge out
approximately one inch.
Stereo Test Tape
A Stereo Test Tape Cartridge, J-22683-01, is available
for checking the operation of the tape player. This tape
provides a means of checking the player for proper tape
speed, crosstalk and sound. Follow the instructions on
the tape cartridge.
ci l i n o s ; . . . ' •
C I Radio Controls
Refer to figures 3V-5 and 3V-6.
•S-RF Meter: indicates output power when trans-
mitting and the input signal strength when
receiving.
•Stand-By Mode Switch: permits listening to the AM
: or FM broadcast band until receiving a CB call. In
the STAND-BY position, the radio automatically re-
ceives CB transmission. The operator can also trans-
mit while in the STAND-BY mode or return to radio
listening by operating the microphone switch. When
another CB call occurs, the radio will receive the call.
In the RADIO position, only AM or FM broadcasts
will be heard without CB interruption. Calls cannot
be transmitted in the RADIO position. In the CB
position, calls can be transmitted but there will be
no AM or FM reception.
•Delta Tune Control: aligns receiving set with a set
• that is transmitting slightly off frequency.
• Squelch Control: affects the sensitivity of the re-
ceiver and eliminates receiver background noise
when no signal or a weak signal is being received.
CB Operation
To Receive
(1) Center speaker balance control.
(2) Rotate squelch control fully counterclockwise.
(3) Set Radio/CB selector switch to CB position.
(4) Rotate On-Off switch clockwise until noise or
signal is heard in speaker.
(5) Check to see that CB Channel indicator light is
illuminated.
(6) Select desired channel.