Kenwood SP-990 Manuals

Kenwood SP-990 Manuals

Manuals and User Guides for Kenwood SP-990. We have 2 Kenwood SP-990 manuals available for free PDF download: Service Manual, Instruction Manual

Kenwood SP-990 Service Manual

Kenwood SP-990 Service Manual (245 pages)

HF/50MHz TRANSCEIVER & EXTERNAL SPEAKER

Brand: Kenwood | Category: Transceiver | Size: 8.27 MB

Table of Contents

Controls and Knobs
1
Table of Contents
2
Safety Check after Repairs
2
Disassembly for Repair
3
Circuit Description
4
Components Description
40
- DC-DC Unit
  41
- Final Unit
  42
- Digital Unit
  43
- PLL Unit
  44
- AT Unit
  48
- Control Unit
  50
- Display Unit
  51
- RX Unit
  52
- TX-RX Unit
  55
- Main MCU
  60
Semiconductor Data
60
- Scope-Sub MCU
  61
- Scope DSP
  62
- Extension Port IC
  64
- DSP-Sub MCU
  67
- Txmrx-Dsp
  68
- Srx-Dsp
  70
- Panel MCU
  73
Parts List
75
- Exploded View (Main Body Upper Side)
  150
- Main Body Lower Side
  151
- Panel
  152
- Wiring - Upper Side
  154
- Wiring - Lower Side
  155
- Wiring - Panel
  156
Packing
157
Fault Diagnosis of the BGA (Ball Grid Array) IC
158
Trouble Shooting
158
- Replacing Digital Unit
  159
- Updating Firmware
  160
- Required Test Equipment
  160
- Preparation
  160
Adjustment
160
- Jig Cable
  161
- ACC 2 Connector Short Plug
  161
- Adjustment Rod
  161
- Service Jig
  161
- Adjustment Mode
  162
- Operating Procedure for Adjustment Mode
  162
- Adjustment Mode Menu
  163
- Display Check
  165
- PLL Section
  165
- Receiver Section
  168
- Transmitter Section
  195
- Adjustment Points (Upper Side)
  206
- Lower Side
  207
- Accessory Units
  210
Terminal Function
210
Main/Sub Band
238
Level Diagram
238
- ARCP-990 (Radio Control Program)
  240
- ARHP-990 (Radio Host Program)
  240
  - External Speaker
    240
  - Schematic Diagram
    241
Optional Accessories
240
Specifications
242

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Kenwood SP-990 Instruction Manual

Kenwood SP-990 Instruction Manual (2 pages)

EXTERNAL SPEAKER

Brand: Kenwood | Category: Speakers | Size: 0.32 MB

Table of Contents

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