RCA RDR2600 User manual
RDR2600 UHF
SERVICE MANUAL
CONTENTS
RDR2600 UHF DISASSEMBLY FOR REPAIR.........1-7
TECHNICAL SPECIFICATIONS .................8-9
CIRCUIT DESCRIPTION.....................10-12
PARTS LIST .............................13-16
RDR2600 UHF EXPLOSION......................17
RDR2600 UHF EXPLOSION SERIES OF ACCESSORIE..18
RDR2600 UHF CHARGE PACKING.................19
RDR2600 UHF RADIO PACKING..................20
SCHEMATIC DIAGRAM ......................21-25
PC BOARD ................................26-37
PTT BOARD..............................38-39
RDR2600 UHF DISASSEMBLY FOR REPAIR
1
1.Removing the Case Assembly from the Chassis
(1)Remove the two screws
(2)Remove the channel knob and volume knob
(3)Remove the channel copper nut, volume copper nut, antenna
head copper nut and antenna head waterproof ring.
(4)Open the USB port cover, do not lock the USB port.
(5)Disassemble the front case and chassis, be careful not to
overexert,In order to avoid the speaker cable and cable break
(6)Remove the cable from the PCB.
(7)Use a soldering iron to remove the speaker cable from the
PCB
2.Remove the keypad from the Chassis
(1)Remove the eleven screws which connect the PCB
(2)Using a soldering iron, dissolve the tin on the antenna end,lift it
up and remove the PCB from the aluminum case at the same time.
2
3.Remove the keypad from the Chassis
(1)Remove the cable from the keypad
(2)Remove the six screws that connect the keypad
(3)Use a soldering iron to melt the tin at the horn solder joints and remove the microphone
(4)Remove the keypad
3
�
．
4. Assemble the PCB to the aluminum case
（1） Put the aluminum antenna pin on the antenna board and align it
with the corresponding positioning hole on the PCB,lock the screws
into all 11 screw hole,fix PCB Board and the aluminum shell.(Note:
PCB board should be close to the aluminum shell, do not have tilted
phenomenon, the screws should be fully and intact locked.)
（2） Solder the antenna head with a soldering iron.(Note: Tin point
must be full, smoothly, no brushed)
4
+SPK-
RED
BLACK
5.put the keyboard on the shell
(1)Assemble the button into the front case
(2)Put the microphone pin on the positioning hole on the
keyboard and add tin to weld
(3)Install the screw holes on the keypad and the screw holes
on the surface shell, and lock them with 6 screws
(4)Install the cable
5
6.Assemble the aluminum shell into the front case
(1)Add tin on the welding point of PCB speaker
(2)Weld the speaker line and the microphone line on the PCB board (Note: the Red
speaker line connect to SPK + pole, black line connect to SPK- pole;The red microphone
line connect to MIC + pole, black line connect to MIC- pole)
(3)put the cable on the PCB board
(4)Open the USB port cover to prevent the aluminum case from pressing against the USB
port cover when loading the aluminum case.
6
7.Install nuts and knob caps
(1)Insert the channel copper nut, volume copper nut, antenna
head brass nut and antenna head waterproof ring into the
walkie-talkie
(2)Channel knob cap and volume knob cap are respectively put
into the walkie-talkie
7
Technical Specifications
GENERAL
Model RDR2600
Channel Numbers 1000
Channel Spacing Digital:12.5KHz
Analog:12.5KHz/25KHz
Working Voltage DC 7.4V
Frequency UHF:400-470MHz
Operating Temeperature (-20℃)~+50℃/（-4℉）~+122℉
Storage Temeperature (-40℃)~+80℃/（-40℉）~+176℉
Weight
318g/0.71b.(with battery B2618LI)
Size:HxWxD(inch) 5.3"×2.3"×1.3"(without antenna)
Waterproof Level IP54 Dust &Water Resistant
RECEIVE
Frequency Stability ±1.0ppm
Analog Sensitivity 0.22uV/-120dBm(12dB SINAD)
Digital Sensitivity 0.2uV/-121dBm(BER 5%D)
Intermodulation 60dB
Working Voltage DC 7.4V
Adjacent Channel Selectivity [email protected]
Co-channel rejection [email protected]
Spurous Response Rejection 70dB
Receive Spurious Radiation -57dBm@<1GHz
-47dBm@<1GHz
Block 84dB
Rated Audio Power
Rated Audio Distortion
1W@16 Ohms
≤3%
RDR2600 UHF
8
TRANSMITTER
Transmit power 5W
FM noise [email protected]
Intermodulation 60dB
Transmit Spurious Radiation -36dBm@<1GHz
-30dBm>1GHz
Adjacent Channel Power [email protected]
Modulation Limit [email protected]
Idle Slot Power -57dBm
Audio Response +1dB---(-3)dB
Rated Audio Distortion ≤3%
FSK Error ≤3%
Emisson Designator(Analog) 16K0F3E/110KF3E
4FSK Digital Modulation
12.5KHz Data:7K60F1D&7K60FXD
12.5KHz Voice:7K60F1E&7K60FXE
Combination of 12.5KHz Voice and Data:7K60F1W
RDR2600 UHF Technical Specifications
9
CIRCUIT DESCRIPTION
1.Frequencies constitute
The receiver using highly integrated RF frequency chip, 1846S as a radio frequency (RF).
ANT SW RX AMP
TX AMP
RF
AF AMP
MIC AMP
26MHz
2.The received signal amplifying circuit
The front-end (RF amplifier)
From the antenna signal into the transmit/receive switch diode circuits (D402 D403), and is the RF amplifier (Q401 3 sk318)
amplifier, directly into the 1846 s.
1846S
RDR2600 UHF
10
D402 D403 3SK318
Q 401 RF_RX
3.D/A conversion circuit
Audio and modulation:
Audio through (U401 RDA1846S) demodulation, into (U101 HR_C6000), after (U308 TDA2822) amplification, into the horn.
Modulation input after (U102 NJM2100V) amplification. Into (U101 HR_C6000), input (U401 RDA1846S) modulation,transmit.
RDA1846S
U401
HR_C6000
U101
NJM2100V
U102
CPU
U201
U308
RF_TX
RF_RX
TDA2822
4.Drive, terminal amplifier and APC circuit
1846 s output rf signal. Through (Q405 2 sc3356), (2 sc3356 Q406), (Q407 RD01MUS2) amplifier, driving power tube (Q408
RQA009) after switch 2 Diode (D401),transmit.
CIRCUIT DESCRIPTION
RDR2600 UHF
11
D401 R Q A0 00 9
Q 408
RD01MUS2
Q 407
2SC3356
Q 406
2SC3356
Q 405
NJM2904V
U404 R432
R433
R434
B AT+
APC
APC_VCC
RF_TX
CIRCUIT DESCRIPTION
RDR2600 UHF
12
Material name
Specification
model
Device
package
Number
Element bit number
Capacitance
1SR154-400
SOD-106
1
D301
1SS372
SOT-323
2
D101
D103
26MHz
X3.2X2.5
1
X601
29.4912MHz
1XTW29491CA
X3.2X2.5
1
X101
A
2SA1586
SOT-323
1
Q101
2SC3356
SOT-23
2
Q405-406
2SC4116
SOT-323
1
Q104
32.768KHz
MC-146
1
X202
3SK318
SOT-343
1
Q401
8MHz
1C208000BB0
X3.2X2.5
1
X201
B
AD2736
SOT23-6
1
U305
HR_V3000S
HR_V3000S
SOT23-6
1
U203
BATTERY-CON
CBC47S13D
CBC47S13D
1
J301
BLM21PG221S
BLM21PG221S
L0805
2
L309
L415
100P
402
18
C104
C240-251
C254-255
C305
C416
C437
102
402
14
C117
C144
C158
C310
C338
C412
C417
C420
C425
C458
C461
C470
C475
C477
C103 C121 C148 C155 C163-164 C166
C168 C170 C172-173 C179 C182 C206
103
402
42
C209-210 C217
C226-229 C238 C303
C308
C313
C317
C319
C324
C326
C337
C339
C346
C352
C355
C358
C365
C455
C463
C467
C471
C481
C507
C106-108 C111
C116
C119-120
C126
C153
C159-160
C162
C176
C180-181
C183-184 C203 C207-208 C212-214
C218-219 C230
C306-307 C311 C316
104
402
59
C323
C325 C329 C335
C341 C343-344
C348
C350
C353
C357
C359
C361
C363-
364
C369
C418
C421
C424
C448
C450-
451
C457
C459
C462
C476
C478
C482
C490
C118
C122
C125
C127
C149
C165
C167
C169 C171 C174 C178 C211 C215-216
105
402
39
C220-221 C237
C304
C312
C314-315
C318
C320
C322
C327
C333
C340
C342
C345
C347 C351
C356
C367-368 C422-
423
C483
C486
C491
10P
402
3
C157
C302
C493
153
402
2
C225
C488
183
402
3
C222
C224
C489
18P
402
1
C410
220P
402
5
C105
C112
C146
C152
C465
222
402
1
C147
223
402
2
C123
C336
22P
402
2
C301
C466
272
402
1
C109
330P
402
2
C360
C362
33P
402
1
C436
RDR2600 UHF PARTS LIST
13
392
402
1
C223
3P
402
1
C414
470P
402
23
C101-102 C124 C231 C252-253 C256
C330-331 C411 C413 C419 C429 C433
C447 C449 C452-454 C460 C464 C473
C480
473
402
2
C354 C472
47P
402
2
C300 C468
56P
402
1
C469
6P
402
1
C431
7P
402
2
C204-205
8P
402
3
C201-202 C434
9P
402
1
C430
10U/10V
GRM21BR71A1
06KE51L
805
6
C156 C161 C175 C328 C349 C474
2.2U/10V
GRM21BR71A2
25KE51L
805
1
C321
120P
603
1
C407
12P
603
2
C443 C445
1P5
603
1
C403
27P
603
1
C442
2P
603
1
C405
3P
603
3
C401 C406 C408
47P
603
1
C439
68P
603
1
C446
6P
603
2
C402 C404
22U/10V
GRM31CR71A2
26ME15L
1206
4
C309 C334 C366 C456
10uF/10V
TC212P106M0
10B
TCAP2012(P
)
2
EC303-304
1uF/16V
TC212P105M0
16B
TCAP2012(P
)
1
EC106
2.2uF/10V
TC212P225M0
10B
TCAP2012(P
)
2
EC103 EC301
4.7uF/10V
TC212P475M0
10B
TCAP2012(P
)
3
EC101-102 EC401
100uF/6.3V
TC212B107M0
06B
TCAP3528(B
)
1
EC305
47uF/6.3V
TCAP3528(B
)
1
EC306
CODE-SWITCH
RE1002BA-
V01
1
SW202
CON-20P
FPC-20P
CON-20P-
FPC-
0.5(DOWN)
1
J201
KDS114E
SOD-523
2
D402-403
KDS160E
SOD-523
4
D104 D201 D302-303
DTC144EE
SOT-523
6
Q102 Q201-202 Q302-303 Q307
3AFUSE
3A/32V-
0466003
F1206
1
F301
3.3uH
MLF1608A3R3
K
603
1
L422
FMMT717
SOT-23
2
Q301 Q304
PNP,SOT23
HR_C6000
LQFP80-
.4MM
1
U101
PARTS LIST
RDR2600 UHF
14
BA592
SOD-323
1
D401
0R
603
2
L410 L416
18nH
MLG1608B18N
J
603
1
L407
1P
MLG1608B22N
J
603
1
L405
2.7nH
MLG1608B2N7
S
603
1
L417
22nH
MLG1608B22N
J
603
3
L409 L412-413
33nH
MLG1608B33N
J
603
1
L406
10uH
VLS3012ET-
100M
L3030
1
L306
47uH
VLS3012ET-
470M
L3030
1
L105
330R
603
1
L430
0603电阻
BLM18AG601S
BLM18AG601S
603
16
L101-104 L106-108 L201 L301-303
L305 L307-308 L411 L423
220nH
HWI0805UCR2
2J
805
1
L421
2T
EL0.35×1.6
×2L
2T
1
L420
3T
EL0.35×1.6
×3L
3T
3
L401 L403-404
4T
EL0.35×1.6
×4L
4T
2
L402 L414
8T
EL0.35×1.6
×8L
8T
1
L418
GREEN
LED0603
1
LED201
RED
LED0603
1
LED202
MIC
MIC
MIC6
1
MIC101
MICRO-USB
USB-MIN-
5PB
1
J102
MIC_JACK
PJ-D2008K
1
JK101
ML621
3V3BAT
ML621-
D6.8X2.3MM
1
BAT201
2SK3078
2SK3078
SOT-89(M)
1
Q407
AFT05MS004N
AFT05MS004N
SOT-89(M)
1
Q408
NJM2100V
SSOP8
1
U102
NJM2904V
SSOP8
1
U404
PST9124
SOT23-5
1
U202
0R
402
6
R101 R115 R122 R203 R233 R401
1.5M
402
2
R439-440
100K
402
11
R112 R114 R120-121 R149-150 R257
R305 R318 R404 R447
100R
402
5
R124 R151 R322 R453 R471
10K
402
15
R109 R111 R142 R152-153 R156-157
R204-206 R209 R218 R234 R400 R412
10M
402
1
R238
10R
402
4
R154 R316-317 R319
12K
402
1
R309
150K
402
1
R405
150K1%
402
4
R435-438
15K
402
2
R224 R450
PARTS LIST
RDR2600 UHF
15
15R
402
1
R414
180K
402
2
R408 R449
180R
402
1
R227
18K
402
1
R116
1K
402
37
R106 R113 R139 R147 R155 R201-202
R211 R235-237 R239-241 R245-256
R258-259 R303 R315 R403 R410 R418
R420 R458 R469 R473
1K8
402
1
R103
200K
402
1
R304
220R
402
3
R212 R228 R407
22K
402
5
R221 R225 R310 R416 R451
22R
402
4
R105 R125 R419 R423
270R
402
3
R430-431 R441
27K
402
2
R443-444
2K2
402
6
R119 R220 R302 R321 R411 R442
33K
402
2
R314 R428
3K3
402
1
R425
470K
402
2
R117 R446
470R
402
2
R104 R143
47K
402
13
R200 R217 R229-232 R242-244 R301
R320 R445 R467
47R
402
2
R424 R427
4K7
402
14
R158 R222-223 R270-271 R306-307
R311-313 R323-324 R422 R452
560K
402
1
R448
68K
402
1
R308
6K8
402
1
R421
820K
402
1
R110
82K
402
1
R429
8K2
402
2
R413 R415
0.39R
1206
3
R432-434
RDA1846S
QFN32
QFN32P-
5X5X0.9MM-
P0.5MM
1
U401
SPK_JACK
PHONE-JACK-
3.5MM
1
JK102
ST2302
SOT-23
2
Q305-306
STM32F405VGT6
LQFP100-
0.5MM
1
U201
ALARM
SKRTLAE010
TD-1112
1
SW201
TC75S51F
SOT23-5
1
U403
TDA2822
SOP8
1
U308
UMC4N
UMC4N TR
SOT-353
2
U103 U405
VOL-SWITCH
R08710NS
1
SW301
W25Q128FVSIG
SON8X6-
P1.27MM-A
1
U204
XBS104S13R-G
SOD-323
1
D304
XC6204B332MR
SOT23-5
2
U306-307
XC6204B502MR
SOT23-5
3
U301-303
PARTS LIST
RDR2600 UHF
16
10
11
12
13
14
4
37
36
15
5
30
17
16
18 19 20
21 22 23
24
26
27
28
25
8
9
1
23
35
32
33
34
6
7
29
Cx6
38
Ax11
31
Bx2
RDR2600 UHF EXPLOSION
17
RDR2600 UHF EXPLOSION SERIES OF ACCESSORIES
Serial
Part Name
1 PPT button
2 PTT silicone key
3 PTT frame
4 Front Label
5 Speaker line
6 microphone
7 Side label
8 Radio Body label
9 Thermal Conductive Adhesive
10 Channel Knob
11 Volume Knob
12 program port cover
13 earphone cover
14 Headphone Cover Shaft
15 Horns
16 speaker
17 Top Button Switch
18 antenna head
19 Channel Knob
20 Volume Knob
21 Antenna Copper Nuts
22 Channel Copper Nut
23 Volume Copper Nuts
24 Waterproof Ring
25 Aluminum shell waterproof ring
26 Back cover
27 Aluminum shell positive and negative electrode silicone
28 Positive and negative Contact seat
29 Housing
30 PCB Board
31 Aluminum shell
32 Screen bracket
33 LCD
34 Backlight
35 Lens
36 button
37 button board
38 cable
39 Top Button
40
light pipe
18
Charger
AC adapter
RDR2600 UHF CHARGER PACKING
19
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