Alinco DJ-V57 User manual

Specifications
Circuit Description
Parts List
PC Board View
Adjustment
Schematic Diagram
Block Diagram
Exploded View
ALINCO, INC.
Service Manual
Service ManualService Manual
Service Manual
DJ-V57
www.ALINCO.ru

SPECIFICATIONS DJ-V57
SPECIFICATIONS DJ-V57SPECIFICATIONS DJ-V57
SPECIFICATIONS DJ-V57
<GRNERAL>
136
.
000
～
173
.
995
MHz
*
144
.
000
～
145
.
995
MHz
400
.
000
～
479
.
995
MHz
*
430
.
000
～
439
.
995
MHz
136
.
000
～
173
.
995
MHz
400
.
000
～
511
.
995
MHz
Mode
F3E(FM)
Channel steps
5
、
10
、
12
.
5
、
15
、
20
、
25
&
30
kHz
Memory channels
200 channels, 2 CALL channel
Antenna connector
50Ω(unbalanced)
Frequency stability
±2.5ppm
Microphone impedance
2k ohm nominal
7.2V (Ni-MH battery)
7
～
16
V
(
external DC IN
)
-
10
℃
～
+
60
℃
(
external DC IN
)
+
14
°F
～
+
140
°F
(
external DC IN
)
*Guaranteed range per specifications
<TRANSMITTER>
VHF Output power
approx. 5W
approx. 4.5W (with battery)
approx. 5W (external DC IN)
Modulation system
Variable reactance frequency modulation
WFM Max. frequency deviation
±5kHz
NFM Max. frequency deviation
±2.5kHz
Spurious emission
-60dB or less
<RECEIVER>
Receive system
Double conversion superheterodyne
Intermediate frequencies
38.85MHz(1st) / 450kHz (2nd)
VHF Sensitivity (12dB SINAD)
-14dBu (center range)
UHF Sensitivity (12dB SINAD)
-12dBu (center range)
Selectivity
-6dB: 12kHz or more / -60dB: 35kHz or less
Audio output power
500mW (at 8ohm, MAX)
UHF Output power
Power supply
Usable temperature range
TX Frequency range
RX Frequency range

DJ-V57 CIRCUIT DESCRIPTION
[Reception]
1. RX Metho : Double Conversion Super Hetero yne
1st IF: 38.85 MHz
2n IF: 450 KHz
2. Front En
[VHF]
The signal input from antenna passes through the low pass filter, an then it is
amplifie at RF amplifier Q117. The amplifie signal is le to ban pass filter
an ban switch D132, then input to the mixer Q120.
[UHF]
The signal input from antenna passes through the high pass filter an low pass
filter, an then it is amplifie at RF amplifier Q123. The amplifie signal is le
to ban pass filter an ban switch D132, then input to the mixer Q120.
3. Mixer
The input signal to the mixer Q120 an the 1st local signal are a e or
subtracte at the mixer Q120, an the crystal filter XF101 selects the signal of
38.85 MHz, then it is amplifie at the 1st IF amplifier Q121 after the a jacent
signal is eliminate . The 1st local signal from VCO output is supplie to the
base of mixer Q120 passing through the buffer amplifier Q116.
4. IF
The signal amplifie at the 1st IF amplifier Q121 is supplie to pin 16 of IC105
for emo ulation. Also the signal of 12.8 MHz from X101 multiplie by three at
Q115, an then it is le to pin 1 of IC105. Two input signals are mixe in the
mixer circuit insi e of IC105 an converte into the 2n IF signal of 450 kHz.
The 2n IF signal output from pin 3 of IC105 is supplie to pin 5 of IC105 after
eliminating the a jacent signal at the ceramic filter CF101 in WFM mo e, or at
the ceramic filter CF102 in NFM mo e. The input 2n IF signal to pin 5 of
IC105 is emo ulate at the limiter amplifier an qua rature etection circuit
insi e of IC105, then output from pin 9 of IC105 as an AF signal.

5. Squelch
The AF signal from pin 9 of IC105 is input to pin 8 of IC105. The input signal
is output from pin 14 of IC105 passing through the noise filter amplifier an
rectifier circuits insi e of IC105. The rectifie signal is input to the A/D port
pin 82 of microcomputer IC109. Ju ging the signal, the microcomputer controls
ON/OFF of the au io output.
6. Au io
The AF signal from pin 9 of IC105 is amplifie at Q119, an then it is input to
pin 6 of IC106 passing through the active high pass filter Q118. The volume of
au io signal is a juste at the D/A converter IC106. The au io signal is input
to pin 2 of au io power amplifier IC104 an output from pin 6 to rive a
speaker.
7. VCO
[VHF]
VCO in VHF ban consists of the Colpitts oscillator. D106, D112, L112 an
L115 etermine the oscillating frequency, an the signal is oscillate at the
transistor Q103. L115 is passe at shift transistor Q107 when transmitting.
The oscillate signal is supplie to pin 16 of PLL-IC102 passing through the
buffer amplifier Q114.
[UHF]
VCO in VHF ban consists of the Colpitts oscillator. D119, D124, L127 an
L129 etermine the oscillating frequency, an the signal is oscillate at the
transistor Q108. L129 is passe at shift transistor Q111 when transmitting.
The oscillate signal is supplie to pin 16 of PLL-IC102 passing through the
buffer amplifier Q114.
8. PLL
PLL-IC102 is use to control the oscillating frequency of VCO. IC102 is
controlle by the serial control signal sent from the microcomputer IC109. The
12.8MHz for reference frequency of IC102 oscillates in the TCXO X101.
IC102 compares the frequency gaine by ivi ing the signal input to pin 16 of
IC102 by the control signal from IC109 with the frequency gaine by ivi ing
the reference frequency of 12.8 MHz. When the phase ifference is foun as a

result of phase comparison, the pulse signal is output from the charge pump
output of pin 21 of IC102, then the signal is converte into the DC voltage at
the low pass filter an a e to the catho e si e of VCO vari-cap to make the
phases equal. In result the stabilize oscillation can be one at the esire
frequency.
[Transmission]
1. Microphone Amplifier
The microphone amplifier IC110 has four operational amplifiers. The voice is
converte into the electric signal through the microphone, an then supplie to
IC110. The input signal is amplifie an pre-emphasize to be output.
The signal output from microphone amplifier is a juste the maximum
frequency eviation at D/A converter IC106. The a juste signal is a e to
the catho e of D111 of VHF or D123 of UHF VCO for eviation to change the
capacity of the oscillation circuit resulting the FM eviation.
2. Power Amplifier
The oscillate signal at VCO is amplifie at pre- river amplifier IC101, river
amplifier Q105 an power amplifier Q101. The power-amplifie signal is
supplie to the antenna through the uplexer after the harmonics are rejecte
enough at the low pass filter.

Parts List DJ-V57
MAIN Unit
Ref.No. Parts No. Parts Name
C101 CU3559 GRM155B30J105KE18D
C102 CU3535 GRM155B11H102KA01D
C103 CU3523 GRM1552C1H101JZ01D
C104 CU3535 GRM155B11H102KA01D
C105 CU3554 GRM155B11A104KA01D
C106 CU3535 GRM155B11H102KA01D
C107 CU3535 GRM155B11H102KA01D
C108 CU0124 GRM21BB30J226ME38L
C109 CU3504 GRM1553C1H3R0CZ01D
C110 CU3513 GRM1552C1H150JZ01D
C111 CU3535 GRM155B11H102KA01D
C112 CU3515 GRM1552C1H220JZ01D
C113 CU3511 GRM1552C1H100JZ01D
C114 CU3514 GRM1552C1H180JZ01D
C115 CU3559 GRM155B30J105KE18D
C116 NC
C117 CU3517 GRM1552C1H330JZ01D
C118 CU3516 GRM1552C1H270JZ01D
C119 NC
C120 CU3513 GRM1552C1H150JZ01D
C121 CU3516 GRM1552C1H270JZ01D
C122 CU3515 GRM1552C1H220JZ01D
C123 CU3502 GRM1554C1H1R0CZ01D
C124 CU3502 GRM1554C1H1R0CZ01D
C125 CU3518 GRM1552C1H390JZ01D
C126 CU3518 GRM1552C1H390JZ01D
C127 CU3017 C1608CH1H330JT-NS
C128 NC
C129 NC
C130 CU3535 GRM155B11H102KA01D
C131 CU3502 GRM1554C1H1R0CZ01D
C132 CU3501 GRM1554C1HR50CZ01D
C133 CU3535 GRM155B11H102KA01D
C134 CU3514 GRM1552C1H180JZ01D
C135 CU3513 GRM1552C1H150JZ01D
C136 CU3511 GRM1552C1H100JZ01D
C137 CU3547 GRM155B11C103KA01D
C138 CU3535 GRM155B11H102KA01D
C139 CU3527 GRM1552C1E221JA01D
C140 CU3535 GRM155B11H102KA01D
C141 CU3502 GRM1554C1H1R0CZ01D
C142 CU3502 GRM1554C1H1R0CZ01D
C143 CU3502 GRM1554C1H1R0CZ01D
C144 CU3547 GRM155B11C103KA01D
C145 CU3514 GRM1552C1H180JZ01D
C146 CU3535 GRM155B11H102KA01D
C147 CU3148 GRM188B31E105KA75D
C148 CU3547 GRM155B11C103KA01D
C149 CU3535 GRM155B11H102KA01D
C150 CU3527 GRM1552C1E221JA01D
C151 CU3515 GRM1552C1H220JZ01D
C152 CU3527 GRM1552C1E221JA01D
C153 CU3535 GRM155B11H102KA01D
C154 CU3535 GRM155B11H102KA01D
C155 CU3535 GRM155B11H102KA01D
C156 CU0119 GRM21BB30J106KE18L
C157 CU3547 GRM155B11C103KA01D
C158 CU3535 GRM155B11H102KA01D
C159 CU3535 GRM155B11H102KA01D
1

C160 CU3547 GRM155B11C103KA01D
C161 CU3535 GRM155B11H102KA01D
C162 CU3535 GRM155B11H102KA01D
C163 CS0396 TMCP1D104MTRF
C164 CU3527 GRM1552C1E221JA01D
C165 CU3535 GRM155B11H102KA01D
C166 CU3531 GRM155B11H471KA01D
C167 CU3508 GRM1552C1H7R0DZ01D
C168 CU3523 GRM1552C1H101JZ01D
C169 CU3554 GRM155B11A104KA01D
C170 CU3554 GRM155B11A104KA01D
C171 CU3535 GRM155B11H102KA01D
C172 CU3009 C1608CH1H080DT-NS
C173 CU3007 C1608CH1H060DT/S
C174 CU3013 C1608CH1H150JT/S
C175 NC
C176
CU3531
GRM155B11H471KA01D
C177
CU3507
GRM1552C1H6R0DZ01D
C178 CU3509 GRM1552C1H8R0DZ01D
C179 CU3535 GRM155B11H102KA01D
C180 CU3143 GRM188B30J475KE18D
C181 CU3554 GRM155B11A104KA01D
C182 CU3531 GRM155B11H471KA01D
C183 CU3518 GRM1552C1H390JZ01D
C184 CU3507 GRM1552C1H6R0DZ01D
C185 CU3502 GRM1554C1H1R0CZ01D
C186 CU3511 GRM1552C1H100JZ01D
C187 CU3512 GRM1552C1H120JZ01D
C188 CU3501 GRM1554C1HR50CZ01D
C189 CU3531 GRM155B11H471KA01D
C190 CU3507 GRM1552C1H6R0DZ01D
C191 CU3506 GRM1552C1H5R0CZ01D
C192 CU3518 GRM1552C1H390JZ01D
C193 CU3535 GRM155B11H102KA01D
C194 CU3554 GRM155B11A104KA01D
C195 CU3501 GRM1554C1HR50CZ01D
C196 CU3535 GRM155B11H102KA01D
C197 CU3507 GRM1552C1H6R0DZ01D
C198 CU3501 GRM1554C1HR50CZ01D
C199 CU3501 GRM1554C1HR50CZ01D
C200 CU3535 GRM155B11H102KA01D
C201 CS0396 TMCP1D104MTRF
C202 CU3523 GRM1552C1H101JZ01D
C203 CU3523 GRM1552C1H101JZ01D
C204 CU3502 GRM1554C1H1R0CZ01D
C205 CU3535 GRM155B11H102KA01D
C206 CU3511 GRM1552C1H100JZ01D
C207 CU3556 GRM155B10J224KE01E
C208 CU3531 GRM155B11H471KA01D
C209 CS0397 TMCP1C105MTRF
C210 CU3506 GRM1552C1H5R0CZ01D
C211 CU3535 GRM155B11H102KA01D
C212 CU3535 GRM155B11H102KA01D
C213 CU3531 GRM155B11H471KA01D
C214 CS0396 TMCP1D104MTRF
C215 CU3554 GRM155B11A104KA01D
C216 CU3535 GRM155B11H102KA01D
C217 CU3507 GRM1552C1H6R0DZ01D
C218 CU3523 GRM1552C1H101JZ01D
C219 CU3535 GRM155B11H102KA01D
C220 CU3507 GRM1552C1H6R0DZ01D
C221 NC
2

C222 CU3547 GRM155B11C103KA01D
C223 CU3508 GRM1552C1H7R0DZ01D
C224 CU3521 GRM1552C1H680JZ01D
C225 CU3535 GRM155B11H102KA01D
C226 CU3575 GRM1554C1H1R5BZ01D
C227 CU3503 GRM1554C1H2R0CZ01D
C228 CU3502 GRM1554C1H1R0CZ01D
C229 CU3502 GRM1554C1H1R0CZ01D
C230 CU3511 GRM1552C1H100JZ01D
C231 CU3521 GRM1552C1H680JZ01D
C232 NC
C233 CU3521 GRM1552C1H680JZ01D
C234 NC
C235 CU3517 GRM1552C1H330JZ01D
C236 CU3505 GRM1552C1H4R0CZ01D
C237 CU3535 GRM155B11H102KA01D
C238 NC
C239 CU3535 GRM155B11H102KA01D
C240 CU3547 GRM155B11C103KA01D
C241 CU3535 GRM155B11H102KA01D
C242 NC
C243 CU3519 GRM1552C1H470JZ01D
C244 CU3535 GRM155B11H102KA01D
C245 CU3523 GRM1552C1H101JZ01D
C246 CU3523 GRM1552C1H101JZ01D
C247 CU3523 GRM1552C1H101JZ01D
C248 CU3547 GRM155B11C103KA01D
C249 CU3517 GRM1552C1H330JZ01D
C250 CU3535 GRM155B11H102KA01D
C251 CU3535 GRM155B11H102KA01D
C252 CU3554 GRM155B11A104KA01D
C253 CU3554 GRM155B11A104KA01D
C255 CU3539 GRM155B11H222KA01D
C256 CU3539 GRM155B11H222KA01D
C257 CU3547 GRM155B11C103KA01D
C258 CU3554 GRM155B11A104KA01D
C260 CU3547 GRM155B11C103KA01D
C261 CU3547 GRM155B11C103KA01D
C262 CU3547 GRM155B11C103KA01D
C263 CU3535 GRM155B11H102KA01D
C264 CU3517 GRM1552C1H330JZ01D
C265 CU3547 GRM155B11C103KA01D
C266 CU3148 GRM188B31E105KA75D
C267 CU3554 GRM155B11A104KA01D
C268 CU3523 GRM1552C1H101JZ01D
C269 CU3501 GRM1554C1HR50CZ01D
C270 CU3501 GRM1554C1HR50CZ01D
C271 CU3575 GRM1554C1H1R5BZ01D
C272 CE0463 10CE100BSS
C273 CU3507 GRM1552C1H6R0DZ01D
C274 CU3547 GRM155B11C103KA01D
C275 NC
C276 CU3503 GRM1554C1H2R0CZ01D
C277 CU3502 GRM1554C1H1R0CZ01D
C278 CU3535 GRM155B11H102KA01D
C279 NC
C280 CU3509 GRM1552C1H8R0DZ01D
C281 CU3575 GRM1554C1H1R5BZ01D
C282 CU3523 GRM1552C1H101JZ01D
C283 CU3535 GRM155B11H102KA01D
C284 CU3547 GRM155B11C103KA01D
C285 CU3547 GRM155B11C103KA01D
3

C286 CU3535 GRM155B11H102KA01D
C287 CU3535 GRM155B11H102KA01D
C288 NC
C289 CU3531 GRM155B11H471KA01D
C290 CU3554 GRM155B11A104KA01D
C291 CU3554 GRM155B11A104KA01D
C292 NC
C293 CU3519 GRM1552C1H470JZ01D
C294 CS0397 TMCP1C105MTRF
C295 CU3531 GRM155B11H471KA01D
C296 CU3510 GRM1552C1H9R0DZ01D
C297 CU3509 GRM1552C1H8R0DZ01D
C298 CU3509 GRM1552C1H8R0DZ01D
C299 CU3509 GRM1552C1H8R0DZ01D
C300 CE0436 16CE47BSS
C301 CU3535 GRM155B11H102KA01D
C302 CU3535 GRM155B11H102KA01D
C303 CU3535 GRM155B11H102KA01D
C304 CU3531 GRM155B11H471KA01D
C305 CU3527 GRM1552C1E221JA01D
C306 CU3554 GRM155B11A104KA01D
C307 CU0124 GRM21BB30J226ME38L
C308 CU3547 GRM155B11C103KA01D
C309 CU3535 GRM155B11H102KA01D
C310 CU3531 GRM155B11H471KA01D
C311 CU3554 GRM155B11A104KA01D
C312 CU3554 GRM155B11A104KA01D
C313 CU3554 GRM155B11A104KA01D
C314 CU3527 GRM1552C1E221JA01D
C315 CU3535 GRM155B11H102KA01D
C316 CU3535 GRM155B11H102KA01D
C317 CU3535 GRM155B11H102KA01D
C318 CU3138 GRM188B31C225KE14D
C319 CU3554 GRM155B11A104KA01D
C320 CU3554 GRM155B11A104KA01D
C321 CU3535 GRM155B11H102KA01D
C322 CU3554 GRM155B11A104KA01D
C323 CU3535 GRM155B11H102KA01D
C324 CU3535 GRM155B11H102KA01D
C325 CU3554 GRM155B11A104KA01D
C326 CU3554 GRM155B11A104KA01D
C327 CU0124 GRM21BB30J226ME38L
C328 CU3138 GRM188B31C225KE14D
C329 CU3535 GRM155B11H102KA01D
C330 CS0439 TMCMA0J476MTRF
C331 CU3535 GRM155B11H102KA01D
C332 CU3535 GRM155B11H102KA01D
C333 CU3535 GRM155B11H102KA01D
C334 CU3554 GRM155B11A104KA01D
C335 CU3559 GRM155B30J105KE18D
C336 CU3535 GRM155B11H102KA01D
C339 CU3535 GRM155B11H102KA01D
C340 CU0119 GRM21BB30J106KE18L
C341 CU3535 GRM155B11H102KA01D
C342 CU3547 GRM155B11C103KA01D
C343 CU3547 GRM155B11C103KA01D
C344 CU3559 GRM155B30J105KE18D
C345 CU3138 GRM188B31C225KE14D
C346 CU3148 GRM188B31E105KA75D
C347 CU3535 GRM155B11H102KA01D
C348 CU3554 GRM155B11A104KA01D
C349 CU3148 GRM188B31E105KA75D
4

C350 CU3535 GRM155B11H102KA01D
C351 CU3535 GRM155B11H102KA01D
C352 CU3554 GRM155B11A104KA01D
C353 CU0119 GRM21BB30J106KE18L
C354 CU3535 GRM155B11H102KA01D
C355 CU0119 GRM21BB30J106KE18L
C356 CU3535 GRM155B11H102KA01D
C357 CU3547 GRM155B11C103KA01D
C358 NC
C359 CU3553 GRM155B11A473KA01D
C360 CU3553 GRM155B11A473KA01D
C361 CU3527 GRM1552C1E221JA01D
C362 CU3545 GRM155B11E682KA01D
C363 CU3554 GRM155B11A104KA01D
C364 CU3559 GRM155B30J105KE18D
C365 CU3523 GRM1552C1H101JZ01D
C366 CU3539 GRM155B11H222KA01D
C367 CU3554 GRM155B11A104KA01D
C368 CU3535 GRM155B11H102KA01D
C369 CS0439 TMCMA0J476MTRF
C370 NC
C371 CU3514 GRM1552C1H180JZ01D
C372 CU3535 GRM155B11H102KA01D
C373 CU3541 GRM155B11H332KA01D
C374 CU3554 GRM155B11A104KA01D
C375 CU3547 GRM155B11C103KA01D
C376 CU3148 GRM188B31E105KA75D
C377 CU3535 GRM155B11H102KA01D
C378 CU3513 GRM1552C1H150JZ01D
C379 CU3535 GRM155B11H102KA01D
C380 CU3553 GRM155B11A473KA01D
C381 CU3543 GRM155B11E472KA01D
C382 CU3535 GRM155B11H102KA01D
C383 CU3148 GRM188B31E105KA75D
C384 CU3535 GRM155B11H102KA01D
C385 CU3554 GRM155B11A104KA01D
C386 CU3533 GRM155B11H681KA01D
C387 CU3523 GRM1552C1H101JZ01D
C388 CU3535 GRM155B11H102KA01D
C389 CU3559 GRM155B30J105KE18D
C390 CU3148 GRM188B31E105KA75D
C391 CU3535 GRM155B11H102KA01D
C392 CU3559 GRM155B30J105KE18D
C393 CU3554 GRM155B11A104KA01D
C394 CU3541 GRM155B11H332KA01D
C395 CU3535 GRM155B11H102KA01D
C396 CU0119 GRM21BB30J106KE18L
C397 CU3535 GRM155B11H102KA01D
C398 CU3535 GRM155B11H102KA01D
C399 CU3535 GRM155B11H102KA01D
C400 CU3553 GRM155B11A473KA01D
C401 CU3559 GRM155B30J105KE18D
C402 NC
C403 CU3535 GRM155B11H102KA01D
C404 CU3547 GRM155B11C103KA01D
C405 CU3535 GRM155B11H102KA01D
C406 CU3527 GRM1552C1E221JA01D
C407 CU3535 GRM155B11H102KA01D
C408 CE0436 16CE47BSS
C409 CU3535 GRM155B11H102KA01D
C410 CU3547 GRM155B11C103KA01D
C411 CU3547 GRM155B11C103KA01D
5