Kenwood TK-7102 Manual Do Utilizador
TK-7102
TK-7102
2
2
47
CONTENTS / GENERAL
GENERAL
INTRODUCTION
SCOPE␣ OF␣ THIS␣ MANUAL
This manual is intended for use by experienced techni-
cians familiar with similar types of commercial grade com-
munications equipment. It contains all required service in-
formation for the equipment and is current as of this publica-
tion date. Changes which may occur after publication are
covered by either Service Bulletins or Manual Revisions,
which are issued as required.
munications equipment. It contains all required service in-
formation for the equipment and is current as of this publica-
tion date. Changes which may occur after publication are
covered by either Service Bulletins or Manual Revisions,
which are issued as required.
ORDERING␣ REPLACEMENT␣ PARTS
When ordering replacement parts or equipment informa-
tion, the full part identification number should be included.
This applies to all parts : components, kits, and chassis. If
the part number is not known, include the chassis or kit
number of which it is a part and a sufficient description of
the required component for proper identification.
This applies to all parts : components, kits, and chassis. If
the part number is not known, include the chassis or kit
number of which it is a part and a sufficient description of
the required component for proper identification.
PERSONNEL␣ SAFETY
The following precautions are recommended for person-
nel safety :
• DO␣ NOT␣ transmit if someone is within two feet (0.6
• DO␣ NOT␣ transmit if someone is within two feet (0.6
meter) of the antenna.
• DO␣ NOT␣ transmit until all RF␣ connectors are secure and
any open connectors are properly terminated.
• SHUT␣ OFF this equipment when near electrical blasting
caps or while in an explosive atmosphere.
• All equipment should be properly grounded before
power-up for safe operation.
• This equipment should be serviced by only qualified tech-
nicians.
PRE-INSTALLATION␣ CONSIDERNATIONS
1. UNPACKING
Unpack the radio from its shipping container and check
for accessory items. If any item is missing, please contact
KENWOOD␣ immediately.
KENWOOD␣ immediately.
2. LICENSING␣ REQUIREMENTS
Federal regulations require a station license for each ra-
dio installation (mobile or base) be obtained by the equip-
ment owner. The licensee is responsible for ensuring trans-
mitter power, frequency, and deviation are within the limits
permitted by the station license.
ment owner. The licensee is responsible for ensuring trans-
mitter power, frequency, and deviation are within the limits
permitted by the station license.
Transmitter adjustments may be performed only by a li-
censed technician holding an FCC␣ first, second or general
class commercial radiotelephone operator’s license. There
is no license required to install or operate the radio.
class commercial radiotelephone operator’s license. There
is no license required to install or operate the radio.
CONTENTS
GENERAL ................................................................. 2
OPERATING FEATURES ......................................... 4
REALIGNMENT ........................................................ 7
DISASSEMBLY FOR REPAIR .................................. 9
CIRCUIT DESCRIPTION ......................................... 10
SEMICONDUCTOR DATA ..................................... 15
DESCRIPTION OF COMPONENTS ....................... 16
PARTS LIST ............................................................ 18
EXPLODED VIEW ................................................... 24
PACKING ................................................................. 25
ADJUSTMENT ........................................................ 26
PC BOARD VIEWS
DISPLAY UNIT (X54-3340-20) ........................... 31
TX-RX UNIT (X57-6290-20) ............................... 33
SCHEMATIC DIAGRAM ......................................... 39
BLOCK DIAGRAM ................................................... 43
LEVEL DIAGRAM .................................................... 45
TERMINAL FUNCTION .......................................... 47
SPECIFICATIONS ................................. BACK COVER
TERMINAL FUNCTION
CN1 (TX-RX Unit)
Pin No.
Name
Function
1
GND
Ground
2
PTT
PTT/TXD
3
HOOK
Hook detection/RXD
4
ME
Mic ground
5
MIC
Mic signal input
6
POWER
Power switch
7
LED MON
Signal of MON Key control
8
LED PF
Signal of PF Key control
9
LED C1
Signal of channel1 control
10
LED C2
Signal of channel2 control
11
LED R
Signal of TX control
12
LED G
Signal of Busy control
13
MICBL
Mic backlight control
14
LED C3
Signal of channel3 control
15
LED C4
Signal of channel4 control
16
CM
Mic data detection
17
KM11
Key matrix input 11
18
KM12
Key matrix input 22
19
KM13
Key matrix input 33
20
KM14
Key matrix input 44
21
KM01
Key matrix input 01
22
KM02
Key matrix input 02
23
PSB
Switched B
J1 (TX-RX Unit)
Pin No.
Name
Function
1
SP
Audio signal output to internal/external speaker.
2
E
Ground
J1 (Control Unit)
Pin No.
Name
Function
1
MBL
MIC backlight control.
2
PSB
13.6V.
3
GND
Ground.
4
PTT/TXD
PTT.
5
ME
MIC ground.
6
MIC
MIC signal input.
7
HOOK/RXD
Hook detection
8
CM
MIC data detection.