air condition OPEL GT-R 1973 Manual Online

RADIO - OPEL 1900 - MANTA9c- 109
RADIO
OPEL 1900
- MANTA
CONTENTS
Subject
DESCRIPTION AND OPERATION: (Not Applicable)
DIAGNOSIS:
RadioTroubleDiagnosis. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .MAINTENANCE AND ADJUSTMENTS:
Antenna Trimmer Adjustment
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .MAJOR REPAIR:
Removal&InstallationRadio. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Removal81InstallationAntenna. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .SPECIFICATIONS:Page No.
9c-109
9c-110
9c-111
9c-111
DIAGNOSIS
RADIO TROUBLE DIAGNOSISBecause radio problems are most often repaired at
United Delco authorized warranty repair stations,
the tendency for many dealer servicemen is to
remove the set when a problem is reported, without
any preliminary diagnosis. This results in a large
number of radios showing up as “NO TROUBLE
FOUND” units when received by the warranty re-
pair stations. This indicates that the trouble can
often time be corrected without removal of the radio.
The inconvenience to an owner of driving without a
radio while his set is being serviced at a warranty
station can frequently be avoided if the following
quick checks are used to eliminate external radio
system Problems before removing the radio for re-
pair.
Always determine from the owner the exact nature
of the radio problem as an aid to diagnosis. Knowing
whether! the condition is intermittent or constant,whether::it occurs with engine off or running, with
car stationary or moving, will help to pinpoint theproblem: Never turn on radio with speaker discon-
nected.
Radio Is Inoperative
1. Turn on the radio. The dial should light and a
thump should be heard from the speaker.a. If a thump is heard, go to
Step No. 2 for antenna
check.b. If no thump is heard, check the fuse.
(1) If fuse is bad, replace and try radio again. Race
engine and, if fuse blows again, remove the radio and
speaker assembly for repair by a trained radio techni-
cian.
(2) If fuse is good, check to see that the speaker to
receiver interconnecting cable is connected securely.
If there is still no thump when the radio is turned on,
remove the receiver and speak+ for repair.
2. Check the antenna by substituting with one held
out the car window.
a. If radio is still dead with’substitute antenna,
remove the receiver and speaker for repair.
b. If radio operates near normal with substitute an-
tenna, some part of the car antenna or lead-in is at
fault.
Radio Reception Is Weak1. Check to see if antenna
tri$mer is peaked.
a. Position antenna at a height,of 31 inches.
b. Tune radio to weak station at or near 1400 KHz
on the dial, and turn volume control to maximum.

SubjectPage Number
Subject Page Number
A
Air Conditioning Refrigerant Components .................
98.17
Opel 1900
& Manta-In Car Components .....9B-90
GT.ln Car Components..................98-97
Alignment Opel 1900
& Manta .....................3C-22
GT-Opel ..............................
3C-22
Alternator Description ...........................
lD-28
Specifications. .........................1 D-35
Overhaul K-l..........................lD-30
Removal & Installation ..................lD-30
Testing...............................lD-29
Wiring Diagrams
Manta .............................
1 J-105
Opel 1900
..........................lJ-103
GT ................................
lJ-107
AM
Radio-GT............................9C-105
AM Radio-Opel 1900 &Manta ...............
9C-109
Antenna, Installation .......................
9C-111
Antenna Trimmer .........................
9C-110
Assembly of Transmission from Major Units Manual ...............................
78-23
3 Speed Automatic .....................
7C-103
Axle,
R&r, Disassembly ....................48~11
Bolt Torque Specifications
Engine ...............................
6A-27
Transmission. Manual ....................
78-33
3 Speed Automatic .....................
7C-136
Clutch ...............................
7A-7
Body ................................
2A-4
Brakes
Brake Drum, Shoes & Linings .............5C-28
Hydraulic Wheel Cylinder ................
5C-30
Hydraulic Master Cylinder ................
5A-2
Parking Brake Cables .....................
5C-33
Standard Brakes ........................
X-22
Disc Brakes...........................5B-10
Brake Booster and Vacuum
Coritrol Valve ....5A-5
Bumpers, Front and Rear ...................
ZH-33
C
B
Balance,,Wheel and Tire....................3G-62
Ball
J&tUpper .........................3A-7
Lower ...............................
3A-7
Battery
Specifications ..........................
lA-9
Testing...............................lA-6
Charging ..............................lA-9
Trouble Diagnosis ......................lA-4
Battery Test 421.........................l A-6
Belt Tensions ............................
68.33
Blower and Air Inlet Assembly, Removal and Installation
Owl 1900&Manta.....................9A-15
GT
.: ................................9A-5
Body Name Plate ............................
OA-1
Style’Numbers ......................... OA-2
Windows and Weatherstrips ...............
ZC-9
Doors ................................
ZD-13
Interior Trim and Headlining ..............
26-33
Seatsi................................26-33
Roof&d Sunroof-Opel 1900
& Manta ......2F.24 Camshaft,
1.9L
Engine .....................6A-25
Car Model Identification .......
.,............OA-1
Carburetor..............................6E-44
Trouble Diagnosis ......................
6E-49
Description ...........................
6E-44
Overhaul .............................
6E-53
Adjust ...............................
6E-50
Removal
& Installation ......,............6E-52
Specifications ..........................
6E-58
Charging
System
Description ..............
:............ 1 D-28
Specifications. ............
.,............lD-35
Testing..................:............lD-29
Wiring Diagrams
Manta .............................
lJ-105
Opel 1900 ..........................
lJ.103
GT ................................
lJ-107
Chart Lubrication ........................ OC-5
Chassis Springs, Front. ........
!............3A-15
Clutch, Second-Automatic Transmission .......
7C-103
Clutch Adjustment .........................
7A-4
Control Arm Front Upper ...................
:............3A-10
Lower ...............................
3A-11
Converter Checking Procedure ................
7C-125
Coolant Flow ............................
68-32
4 Speed Manual Transmission ...
!,...........7B-12
Cranking System. See Starting
SyStem
Crankshaft..............................6A-16
Cylinder Head ...............
:............6A-12
D
Description
3.Speed Automatic.....................7C-37