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TK-790HB
Kenwood TK-790HB Manuals
Manuals and User Guides for Kenwood TK-790HB. We have
1
Kenwood TK-790HB manual available for free PDF download: Service Manual
Kenwood TK-790HB Service Manual (96 pages)
Brand:
Kenwood
| Category:
Transceiver
| Size: 6.26 MB
Table of Contents
Table of Contents
2
Contents / General
2
Ordering Replacement Parts
2
Personnel Safety
2
Unpacking
3
Pre-Installation Checkout
3
Planning the Installation
3
General
3
Pre-Installation Considerations
3
Before Reading about System Set-Up
4
System Set-Up
4
Controls and Functions
5
Basic Function Panel
5
Full Function Panel
5
Operating Features
5
Scan Operation
7
Microphone
7
Transmit
7
Receive
7
Adding Channels and Groups to the Scan Sequence
8
Deleting Channels and Groups from the Scan Sequence
8
Operator Selectable Priority
8
Talk Around (TA)
8
Public Address (PA)
9
Speaker Internal/External (SP)
9
Channel Name (AN)
9
Intercom (IC)
9
Channel Recall (RCL)
10
Aux A, Aux B, Aux C
10
Direct Channel Access
10
Option Board (OPT)
10
Busy Channel Lockout (BCL), BCL Override
11
2Tone Signalling
11
DTMF Signalling
11
Time out Timer
11
Minimum Volume
12
Dead Beat Disable (DBD)
12
ANI Board
12
Accessory Programmable Function Port (PF Port)
12
Msk Ptt ID
13
Power on Text
13
Data Programming (PC Mode)
13
Mode
13
PC Tuning Mode
14
How to Enter each Mode
14
Clone Modes
15
To Enter the Clone Mode and Connect Transceivers
15
All Clone
15
Group Clone
15
Front Panel Kit (KCH-10, KCH-11)
16
Connection with TK-790(B)/H(B)
16
Install the Accessory Knobs
16
Installation
16
Optional Voice Scrambler Function
17
Optional ANI Function
17
Code Setting
17
Voice Scrambler Board Connection
17
Ignition Function
18
Timed Power off Function
18
Ignition Sense Cable (KCT-18)
18
External Speaker (KES-4)
18
Connection for the KES-4 with the TK-790
19
Connection for the KES-4 with the Remote Kit
19
Modification of Plug (12-Pin)
19
If the KCH-10 Is Used
19
Accessory Terminal Function
20
Horn Alert Function
20
Modification to Increase the Audio Output of the Control Head
20
Use as Public Address Speaker
20
Disassembly for Repair (Tk-790/(B))
22
Removing the Case and Shield Cover
22
Removing the TX-RX Unit
22
Removing the Final Unit
22
Disassembly for Repair
23
Removing the TX-RX Unit (X57-561 A/3)
23
Removing the Final Unit (X45-356)
23
Removing the Control Unit (X57-561 B/3)
24
Removing the Accessory Connector on the Rear
24
Disassembly for Repair
24
Disassembly of the Display Unit
25
Transmitter Circuit
26
Microphone Amplifier Section (X57 B/3)
26
Modulation Section (X57 A/3)
26
Circuit Description
26
Receiver Circuit
27
Double Balanced Mixer
27
Circuit Description
27
Squelch and RSSI Voltage Vs ANT Input Level
28
VCO/PLL Circuit
28
Rx Bpf (L110~112)
28
Squelch Circuit
28
Control Circuit
29
Signalling Circuit
29
Memory Circuit
29
Shift Register
29
Display Unit
30
Encoder
30
Power Supply
30
Dimmer Function
30
Kch-11
31
KCH-11 Block Diagram
31
Terminal Function
32
Semiconductor Data
32
Audio Power Amplifier
34
Shift Register on TX-RX (IC201)
34
Shift Register 2 on Control Unit (IC517)
34
Flash ROM : AT29C020-90TI (Control Unit IC519)
35
Power Amplifier : M68702H (Final Unit IC1) TK-790/(B) K Type
35
Final Amplifier : 2SC2782 (Final Unit Q6, Q7) TK-790H(B)
35
Description of Components
36
Control Unit (X57-5610-XX) (B/3)
37
Final Unit (X57-5610-XX) (C/3)
37
Description of Components
37
Display Unit (X54-3190-20) : KCH-10
38
Display Unit (X54-3200-20) : KCH-11
38
Parts List
39
Parts List
40
Display Unit (X54-3190-20) : Kch-10
54
Display Unit (X54-3200-20) : Kch-11
55
Exploded View (Tk-790/(B))
57
Exploded View (Tk-790H(B))
58
Exploded View (Kch-10)
59
Exploded View (Kch-11)
60
Packing (Tk-790/(B))
61
Packing (Tk-790H(B))
62
Packing (Kch-10)
63
Packing (Kch-11)
64
Adjustment
65
Key Functions in Panel Test Mode and Panel Tune Mode
65
MIC Connector
67
Test Cable for Microphone Input
67
Test Cable for Speaker Output
67
Test Equipment Required for Alignment
67
Adjustment Points
68
Common Section
69
Control Unit (X57-5610-XX) (B/3)
74
Terminal Function
74
Final Unit (X57-5610-XX) (C/3) : Tk-790/(B)
75
Tx-Rx Unit (X57-5610-XX) (A/3)
75
Wiring
77
DISPLAY UNIT (X54-3190-20) Component Side View : KCH-10
78
DISPLAY UNIT (X54-3190-20) Foil Side View : KCH-10
78
PC Board Views
78
DISPLAY UNIT (X54-3200-20) Component Side View : KCH-11
79
DISPLAY UNIT (X54-3200-20) Foil Side View : KCH-11
79
Circuit Diagram
80
FINAL UNIT (X45-3560-10) Component Side View : TK-790H(B)
92
Block Diagram
93
Applicable (Mil-Std)
94
Specifications
94
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