Yaesu Ftm-350r - software update procedure 7110 Manual

1FTM-350AR/E Technical Supplement

Introduction

This manual provides technical information necessary for ser-

vicing the FTM-350AR/E Dual Band FM Transceiver.

Servicing this equipment requires expertise in handling sur-

face-mount chip components. Attempts by non-qualified per-

sons to service this equipment may result in permanent dam-

age not covered by the warranty, and may be illegal in some

countries.

Two PCB layout diagrams are provided for each double-sided circuit board in the Transceiver. Each side of is

referred to by the type of the majority of components installed on that side (“leaded” or “chip-only”). In most

cases one side has only chip components, and the other has either a mixture of both chip and leaded compo-

nents (trimmers, coils, electrolytic capacitors, ICs, etc.), or leaded components only.

While we believe the technical information in this manual to be correct, VERTEX STANDARD assumes no

liability for damage that may occur as a result of typographical or other errors that may be present. Your

cooperation in pointing out any inconsistencies in the technical information would be appreciated.

Technical Supplement

Specifications ......................................................2

Exploded View & Miscellaneous Parts............5

Block Diagram....................................................7

Alignment............................................................9

Board Unit (Schematics, Layouts & Parts)

MAIN Unit Circuit Diagram (Lot.1~) ...................17

MAIN Unit Parts Layout (Lot.1~).........................19

MAIN Unit Circuit Diagram (Lot.5~) ...................21

MAIN Unit Parts Layout (Lot.5~).........................23

MAIN Unit Parts Layout (Lot.27~).......................25

MAIN Unit Parts List ............................................29

Contents

PANEL Unit Circuit Diagram (Lot.1~).................61

PANEL Unit Parts Layout (Lot.1~) ......................62

PANEL Unit Circuit Diagram (Lot.12~)...............63

PANEL Unit Parts Layout (Lot.12~) ....................64

PANEL Unit Parts List ..........................................65

PANEL-R Unit Circuit Diagram (Lot.1~).............71

PANEL-R Unit Parts Layout (Lot.1~) ..................72

PANEL-R Unit Circuit Diagram (Lot.6~).............73

PANEL-R Unit Parts Layout (Lot.6~) ..................74

PANEL-R Unit Circuit Diagram (Lot.12~)...........75

PANEL-R Unit Parts Layout (Lot.12~) ................76

PANEL-R Unit Parts List ......................................77

DUAL BAND FM TRANSCEIVER

FTM-350R/E

FTM-350AR/E

Important Note

The transceiver was assembled using Pb (lead) free solder, based on the RoHS specification.

Only lead-free solder (Alloy Composition: Sn-3.0Ag-0.5Cu) should be used for repairs performed on this appara-

tus. The solder stated above utilizes the alloy composition required for compliance with the lead-free specification,

and any solder with the above alloy composition may be used.

EH033M90D

VERTEX STANDARD CO., LTD.

4-8-8 Nakameguro, Meguro-Ku, Tokyo 153-8644, Japan

VERTEX STANDARD

US Headquarters

10900 Walker Street, Cypress, CA 90630, U.S.A.

YAESU UK LTD.

Unit 12, Sun Valley Business Park, Winnall Close

Winchester, Hampshire, SO23 0LB, U.K.

VERTEX STANDARD HK LTD.

Unit 1306-1308, 13F., Millennium City 2, 378 Kwun Tong Road,

Kwun Tong, Kowloon, Hong Kong

VERTEX STANDARD (AUSTRALIA)PTY., LTD.

Tally Ho Business Park, 10 Wesley Court, East Burwood, VIC, 3151

2FTM-350AR/E Technical Supplement

Specifications

General

Frequency Ranges: RX: 0.5-1.8 MHz (AM Radio)

76-108 MHz (FM Radio)

108-137 MHz (Air Band)

137-174 MHz (144 MHz HAM Band)

174-250 MHz (VHF TV Band)

300-420 MHz (General 1)

420-470 MHz (430 MHz HAM Band)

470-800 MHz (UHF TV Band)

800-1000 MHz (General 2: USA Cellular Blocked)

TX: 144-146(148) MHz (Ham Band)

222-225 MHz (USA only)

430-440(450) MHz (Ham Band)

Channel Steps: 5, 6.25, 8.33, (9), 10, 12.5, 15, 20, 25, 50, 100, 200 kHz

(9): AM Radio Only

Frequency Stability: ±5ppm (14 °F to +140 °F [–10 °C to +60 °C])

Repeater Shift: ±600 kHz (144 MHz)

±1.6 / 5.0 / 7.6 MHz (430 MHz)

Emission Type: F1, F2, F3,

Antenna Impedance: 50 

Supply Voltage: Nominal: 13.8 V DC, Negative Ground

Operating: 11.7 ~ 15.8 V, Negative Ground

Current Consumption: 0.5 A (Receive)

10 A (TX, 144 MHz 50W)

10 A (TX, 430 MHz 50W)

Operating Temperature: –4 °F to +140 °F (–20 °C to +60 °C)

Case Size (WxHxD): Panel: 6.2” x 2.6” x 1.3” (157 x 66 x 33.5 mm) w/o knob & connectors

Rear Chassis: 5.5” x 1.8” x 5.9” (140 x 46 x150 mm) w/o connectors

Weight (Approx.) 4.6 lbs (2.1 kg) Panel + Rear Chassis + Connection Cable

Transmitter

RF Power Output: 50 / 20 / 5 W

Modulation Type: Variable Reactance F1, F2, F3

Maximum Deviation: ±5 kHz

Spurious Emission: At least 60 dB below

Microphone Impedance:2k

3FTM-350AR/E Technical Supplement

Specifications are subject to change without notice, and are guaranteed within the 144/222/430 MHz amateur bands

only.

Cellular Blocked per FCC rule Part 15.121, may not receive 900 MHz Amateur band.

Receiver

Circuit Type: Double-Conversion Super heterodyne (FM/AM)

Triple-Conversion Super heterodyne (WFM)

Single-Conversion Super heterodyne (Radio)

Intermediate Frequencies: 1st: 47.25 MHz, 2nd: 450 kHz (“Main Side” Band, FM/AM)

1st: 44.85 MHz, 2nd: 450 kHz (“Sub Side” Band, FM/AM)

1st: 45.8 MHz, 2nd: 10.7MHz, 3rd: 1MHz (“Main Side” Band, WFM)

1st: 44.0 MHz, 2nd: 10.7MHz, 3rd: 400 kHz (“Sub Side” Band, WFM)

1st: 130 kHz (FM Radio)

1st: 50 kHz (AM Radio)

Sensitivity:5μV TYP for 10 dB SN (0.5-1.7 MHz, AM)

2 μV TYP for 12 dB SINAD (76-108 MHz, WFM)

0.8 μV TYP for 10 dB SN (108-137 MHz, AM)

0.2 μV for 12 dB SINAD (137-140 MHz, FM)

0.2 μV for 12 dB SINAD (140-150 MHz, FM) EXP

0.25 μV for 12 dB SINAD (150-174 MHz, FM)

1 μV TYP for 12 dB SINAD (174-222 MHz, WFM)

0.8 μV TYP for 10 dB SN (300-336 MHz, AM)

0.25 μV TYP for 12 dB SINAD (336-420 MHz, FM)

0.2 μV for 12 dB SINAD (420-470 MHz, FM) EXP

5 μV TYP for 12 dB SINAD (470-540 MHz, WFM)

5 μV TYP for 12 dB SINAD (540-800 MHz, WFM)

0.4 μV TYP for 12 dB SINAD (800 -899.99 MHz, FM)

0.8 μV TYP for 12 dB SINAD (800 -999.99 MHz, FM)

USA Version Cellular Blocked

Squelch Sensitivity: 0.16 μV (144 / 430 MHz Band)

Selectivity (NFM, AM): 12 kHz / 30 kHz (–6 dB / –60 dB)

AF Output: 8 W @ 8 for 10 % THD (@ 13.8 V) BTL EXP SP

4 W @ 4 for 10 % THD (@ 13.8 V) Normal EXP SP

AF Output Impedance: 4-16 

Specifications

Block Diagram

FTM-350AR/E Technical Supplement

9FTM-350AR/E Technical Supplement

Alignment

Introduction

The FTM-350AR/E is carefully aligned at the factory

for the specified performance across the amateur

band. Realignment should therefore not be neces-

sary except in the event of a component failure. Only

an authorized Vertex Standard representative should

perform all component replacement and service, or

the warranty policy may be void.

The following procedures cover the adjustments that

are not normally required once the transceiver has

left the factory. However, if damage occurs and some

parts subsequently are replaced, realignment may

be required. If a sudden problem occurs during nor-

mal operation, it is likely due to component failure;

realignment should not be done until after the faulty

component has been replaced.

We recommend that servicing be performed only by

authorized Vertex Standard service technicians who

are experienced with the circuitry and fully equipped

for repair and alignment. If a fault is suspected, con-

tact the dealer from whom the transceiver was pur-

chased for instructions regarding repair. Authorized

Vertex Standard service technicians realign all cir-

cuits and make complete performance checks to en-

sure compliance with factory specifications after re-

placing any faulty components.

Those who do undertake any of the following align-

ments are cautioned to proceed at their own risk.

Problems caused by unauthorized attempts at re-

alignment are not covered by the warranty policy.

Also, Vertex Standard reserves the right to change

circuits and alignment procedures in the interest of

improved performance, without notifying owners.

Under no circumstances should any alignment be

attempted unless the normal function and operation

of the transceiver are clearly understood, the cause

of the malfunction has been clearly pinpointed and

any faulty components replaced, and realignment

determined to be absolutely necessary.

Required Test Equipment

The following test equipment (and familiarity with

its use) is necessary for complete realignment. Cor-

rection of problems caused by misalignment result-

ing from use of improper test equipment is not cov-

ered under the warranty policy. While most steps

do not require all of the equipment listed, the inter-

actions of some adjustments may require that more

complex adjustments be performed afterwards.

Do not attempt to perform only a single step unless

it is clearly isolated electrically from all other steps.

Have all test equipment ready before beginning and,

follow all of the steps in a section in the order pre-

sented.

RF Signal Generator with calibrated output level

at 1 GHz

Deviation Meter (linear detector)

In-line Wattmeter with 5% accuracy at 1 GHz

50-Ohm 100-W RF Dummy Load

4-Ohm AF Dummy Load

Regulated DC Power Supply adjustable from 11.5

to 16 VDC, 15A

Frequency Counter: 0.2-ppm accuracy at 1 GHz

AF Signal Generator

AC Voltmeter

DC Voltmeter: high impedance

SINAD Meter

10 FTM-350AR/E Technical Supplement

Alignment Preparation & Precautions

A 50-Ohm RF load and in-line wattmeter must be

connected to the antenna jack in all procedures that

call for transmission; alignment is not possible with

an antenna. After completing one step, read the next

step to see if the same test equipment is required. If

not, remove the test equipment (except dummy load

and wattmeter, if connected) before proceeding.

Correct alignment requires that the ambient tem-

perature be the same as that of the transceiver and

test equipment, and that this temperature be held

constant between 68 °F ~ 86 °F (20 °C ~ 30 °C). When

the transceiver is brought into the shop from hot or

cold air, it should be allowed some time to come to

room temperature before alignment. Whenever pos-

sible, alignments should be made with oscillator

shields and circuit boards firmly affixed in place.

Also, the test equipment must be thoroughly

warmed up before beginning.

Note: Signal levels in dB referred to in the alignment

procedure are based on 0dBμ= 0.5μV.

Test Setup

Set up the test equipment as shown below for trans-

ceiver alignment. Maintain the supply voltage at

13.8V DC for all steps.

Alignment

2. Press the keys on the front panel in the following se-

quence.

[][][][][][]

Entering the Alignment Mode

Alignment of the FTM-350AR/E is performed using

a front panel software-based procedure. To perform

alignment of the transceiver, it must first be placed

in the “Alignment Mode,” in which the adjustments

will be made and then stored into memory.

To enter the Alignment mode:

1. Turn the radio on while pressing and holding the two

keys which are located on both sides of the [POWER]

switch.

3. The transceiver is now in the “Alignment Mode.”

[][

]

50-ohm

Dummy Load

Freq. Counter

Deviation

Meter

AC Voltmeter

AF Generator

AC Voltmeter

Inline

Wattmeter Sampling

Coupler

Regulated

13.8V PSU

MIC Jack

11FTM-350AR/E Technical Supplement

VCO VCV Adjustment

Connect the DC voltmeter to TP1302 (MAIN) and

TP1301 (SUB). Referring to the table below, tune the

transceiver to each frequency listed. Confirm that the

correct voltage is present, or adjust the listed setting

for the required voltage.

MAIN

Tune to: TX/RX for

440.05 MHz RX 2.6 ± 0.25 V

440.00 MHz TX 1.9 ± 0.25 V

146.05 MHz RX 1.7 ± 0.25 V

146.00 MHz TX 1.5 ± 0.25 V

SUB

Tune to: TX/RX for

440.05 MHz RX 2.6 ± 0.30 V

395.05 MHz RX 1.9 ± 0.25 V

146.05 MHz RX 1.4 ± 0.25 V

190.05 MHz RX 1.4 ± 0.25 V

DC Voltmeter

1. Set the power supply voltage to 13.8 V.

2. Press the [ADJ]key to set the alignment Menu

Item to “BAT UPBAT UP

BAT UPBAT UP

BAT UP”.

3. Press and hold in the [FWD]key for one second,

to save the new setting.

Alignment

TP1302 TP1301

TX Power Adjustment

1. Press the [ADJ]key to set the alignment Menu

Item to “PWR xxxPWR xxx

PWR xxxPWR xxx

PWR xxx”.

2. Set the transceiver frequency to 440.000 MHz.

3. Press the [POW]key to select "LOW".

4. Press the PTT switch to activate the transmitter,