Vertex Standard VX-1210 User manual

VX-1210
Service Manual
Introduction
This manual provides technical information necessary for servicing the VX-1210 Transceiver.
Servicing this equipment requires expertise in handling surface-mount chip components. Attempts by non-qualified persons to
service this equipment may result in permanent damage 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 thr board 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 components (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.
Operating Manual Reprint ............................. 2
Specifications .................................................. 10
Installation Manual Reprint......................... 11
SEL-1200 (Option)...........................................................11
ATU-1210 (Option) ......................................................... 12
DSV-1200 (Option)..........................................................14
Exploded View & Miscellaneous Parts ...... 15
Block Diagram................................................. 17
Interconnection Diagram .............................. 18
Circuit Description........................................ 19
Alignment . 21
Contents
Board Unit (Schematics, Layouts & Parts)
MAIN Unit....................................................................29
CNTL Unit ....................................................................45
PA Unit..........................................................................57
Display Unit .................................................................65
Connection Unit ...........................................................67
MIC-CONN Unit .........................................................68
BATT-CONN Unit .......................................................69
TUNER Unit (ATU-1210: Option) .............................71
SELCALL Unit (SEL-1200: Option) ...........................74
©2001 VERTEX STANDARD CO., LTD. Printed in Japan
VERTEX STANDARD CO., LTD.
4-8-8 Nakameguro, Meguro-Ku, Tokyo 153-8644, Japan
VERTEX STANDARD
US Headquarters
17210 Edwards Rd., Cerritos, CA 90703, U.S A.
International Division
8350 N.W. 52nd Terrace, Suite 201, Miami, FL 33166, U.S.A.
YAESU EUROPE B.V.
P.O. Box 75525, 1118 ZN Schiphol, The Netherlands
YAESU UK LTD.
Unit 12, Sun Valley Business Park, Winnall Close
Winchester, Hampshire, SO23 0LB, U K.
VERTEX STANDARD HK LTD.
Unit 5, 20/F., Seaview Centre, 139-141 Hoi Bun Road,
Kwun Tong, Kowloon, Hong Kong

2
SEL VOL
Ç
È
Ä
Ã
Â
Á
À
Æ
Å
FRONT PANEL CONTROLS AND SWITCHES
ÀPOWER Switch
Turn this knob clockwise to turn the radio on. Counterclock-
wise rotation will turn the radio off.
ÁSEL Knob
This 12-position detented rotary switch selects the memory
channels, and tune the operating frequency, if your trans-
ceiver is configured for use of the VFO feature.
ÂVOL Knob
This control adjusts the audio volume level. Clockwise ro-
tation increases the volume level.
ÃCLAR (“Clarifier”) Knob
This control allows you to offset the receiving frequency by
up to 200 Hz in 10 Hz steps (SSB, CW, and DATA modes),
or up to 400 Hz in 20 Hz steps (AM mode). This control is
helpful in case the incoming signal is drifting.
GND Terminal
If an earth ground connection is available at the operating
site, this terminal may be connected to it to provide im-
proved performance and safety.
ÅANT Jack
This jack accepts a 50Wantenna. If the optionalATU-1210
internal antenna tuner is enabled, the optionalYHA-61 whip
antenna (or FHA-27 folding whip antenna with GN-1210
goose neck) can be connected to this jack directly. Use only
a type PL-259 (type M) plug.
ÆTOGGLE Switches
These TOGGLEswitches can be customized, via program-
ming by your Vertex Standard Dealer. The available fea-
tures for these switches are described on page 6.
ÇLCD (Liquid Crystal Display)
The current operating channel is displayed here.
ÈLED Indicator
This LED indicates the current status of the transceiver.
Glowing Green: Busy Receive Channel (or Squelch off).
Glowing Yellow: Transmission in progress.
Blinking Yellow: Antenna mismatching problem (High
SWR condition).
Blinking Red: Battery voltage is nearing depletion. Pre-
pare to replace the battery.
Glowing Red: Battery voltage is critically low. Replace
the battery immediately.
Operating Manual Reprint
Note
Generally, the SEL knob tunes the VFO frequency in 100 Hz steps when you are operating in the VFO mode. If you wish to
tune more quickly, using larger tuning steps, press the SEL knob downward momentarily, then rotate the SEL knob. This allows
you to tune the VFO frequency in 5 kHz steps. When the transceiver is in this “fast” tuning step mode, the “F” character will
appear on the left side of the display.
Pressing the SEL knob downward again causes the transceiver to return to its regular tuning steps (100 Hz per step).

3
Ä
Ã
Â
Á
À
Å
ÀPTT Switch
Press this switch to transmit, and release it to receive.
ÁDummy Switch
This switch is not activated in this transceiver.
ÂEAR Jack
You may connect an Earphone to this jack, for improved
listening under noisy conditions. Earphone operation re-
quires that the MH-50B7A’s loudspeaker be enabled via pro-
gramming by your Vertex Standard dealer.
When a plug is installed into this jack, the MH-50B7A’s in-
ternal loudspeaker will be disabled.
Note: The protective rubber cover over the jack must be
pulled up to access the jack. Press it back over the jack
when does not in use, to protect the inside of the micro-
phone from dust and water.
ÃSpeaker
The loudspeaker for the MH-50B7A is located here.
ÄMicrophone
Speak across this opening in a normal voice level while
pressing the PTT switch.
nt
MH-50B7A SWITCHES
ÅSpeaker Volume Button
Press this switch to reduce the output level from the MH-
50B7A’s loudspeaker, if the MH-50B7A’s loudspeaker has
been enabled (via programming by your Vertex Standard
dealer).
ÀBattery Compartment
This compartment houses allows installation of the FNB-
66LI Lithium-Ion Battery Pack.
ÁCHG Jack
This 4-pin jack allows connection to the optional CD-17
Charger.
ÂAUX Jack (Option)
This optional 9-pin DB-9 jack providesAFSK input/output
and CW keying to allow easy interfacing to data communi-
cations modem devices.
REAR PANEL CONNECTORS
Note: The protective cover over the CHG jack and AUX jacks
must be removed to access the jacks. Replace it back over the
jacks when they are not in use, to protect the inside of the trans-
ceiver from dust and water.
Á
Â
À

Yaesu VX-1210 Service Manual
Yaesu VX-1210 Service Manual
Yaesu VX-1210 Service Manual
Yaesu VX-1210 Service Manual
Yaesu VX-1210 Service Manual
Yaesu VX-1210 Service Manual
Yaesu VX-1210 Service Manual
Yaesu VX-1210 Service Manual
Yaesu VX-1210 Service Manual