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DJ-C1/C4
CONTENTS
+SPECIFICATIONS
+DJ-CI CIRCUIT DESCRIPTION
+DJ-C4 CIRCUIT DESCRIPTION
+SEMICONDUCTOR DATA
+EXPLODED VIEW
+PARTS LIST
+ADJUSTMENT
+PCBOARD VIEW
+CIRCUIT DIAGRAM
+BLOCK DIAGRAM (DJ-C1)
+BLOCK DIAGRAM (DJ-C4)
Service Manual
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ALINCO INCORPORATED
TWIN 21 M.I.D. TOWER BUILDING 23F, 1-61, 2-CHOME,
SHIROMI CHUO-KU , OSAKA, 540-8580 JAPAN
Tel (81)6-6946-8150 fax (81)6-6946-8175
e-mail: export@alinco.co.jp
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Summary of Contents for Alinco DJ-C1
- Page 1 +DJ-C4 CIRCUIT DESCRIPTION +SEMICONDUCTOR DATA +EXPLODED VIEW +PARTS LIST +ADJUSTMENT +PCBOARD VIEW +CIRCUIT DIAGRAM +BLOCK DIAGRAM (DJ-C1) +BLOCK DIAGRAM (DJ-C4) ALINCO INCORPORATED TWIN 21 M.I.D. TOWER BUILDING 23F, 1-61, 2-CHOME, SHIROMI CHUO-KU , OSAKA, 540-8580 JAPAN Tel (81)6-6946-8150 fax (81)6-6946-8175 e-mail: export@alinco.co.jp...
- Page 2 SPECIFICATIONS DJ-C1 DJ-C4 Version Receptionrange(MHz) 118.000~173.995 144.000~145.995 420.000~449.995 430.000~439.995 433.05~434.79 Transmission range (MHz) 144.000~147.995 144.000~145.995 420.000~449.995 430.000~439.995 433.05~434.79 Signal type F3E(FM) Operating temperature Transceiver: -10~+50*C Charger:0-40oC Rated voltage 3.7V Power consumption Transmission : Approx.240mA Transmission : Approx.300mA Approx.180mA Reception : Approx.30mA Reception : Approx.40mA...
- Page 3 DJ-C1 CIRCUIT DESCRIPTION 1) Reception 1. Front End The signal picked up by the antenna is passed through a low-pass filter and band-pass filter, and amplified by an RF amplifier (Q207). It is then passed through another low-pass filter and sent to the mixer (Q209).
- Page 4 5. Audio Audio output is switched between AM and FM by IC209. Volume is controlled by Q222 and Q223. The signal is input to pin 2 of the audio power amplifier (IC208) and output from pin 6, thus producing sound from the earphones, etc. 6.
- Page 5 DJ-C4 CIRCUIT DESCRIPTION 1) Reception The signal picked up by the antenna is passed through a how-pass filter and 1. Front End amplified by an RF amplifier (Q207). It is then passed through a band-pass filter, reamprlfied by Q209 and sent to the mixer (Q223). 2.
- Page 6 7. PLL Circuit The PLL circuit (IC204) is used to control the frequency oscillated by the VCO. Control uses the serial control signal from the microcomputer (IC101). The reference frequency that IC204 uses is oscillated to 21.25 MHz by IC202 in the crystal oscillator (X201) and input to pin 1 of the IC204.
- Page 7 I Band plan1 (analog input) I PLL unlock sinal input (analog input) UNLOCK I Noise level input for squelch (analog input) SQL ON O AM power for short wave (DJ-C1) AM ON 10 BEEP O Beep tone output 11 STB1...
- Page 8 47 CLSW O Clone switch CLONE O PLL power switch . O TX power switch O 145 M band power switch (DJ-C1) 430 M band power switch DJ-C4 51 TON4 O Tone output 4 52 TON3 O Tone output 3...
- Page 17 EXPLODED VIEW...
- Page 18 EA61...
- Page 19 PARTS LIST (DJ-C1) Ref.No. Parts N0. Parts Name T E EA Ref.No. Parts N0. Parts Name T E EA Ref.No. Parts N0. Parts Name T E EA side side side CPU Unit C204 CS0376 TNCMA0G226MTR C279 CU3035 C1608JB1H102KTA C101 CU3047 C1608JB1H103KTA...
- Page 20 PARTS LIST (DJ-C1) Ref.No. Parts N0. Parts Name T E EA Ref.No. Parts N0. Parts Name T E EA Ref.No. Parts N0. Parts Name T E EA Parts No. Parts Name side side side D212 XD0315 MA2S728-TX R206 RK3026 ERJ3GSYJ101V...
- Page 21 PARTS LIST (DJ-C4) Ref.No. Parts N0. Parts Name T E EA C Ref.No. Parts N0. Parts Name T E EA C Ref.No. Parts N0. Parts Name T E EA side side side CPU Unit Mechanical Parts C252 CU3051 C1608JB1E223KTA C101 CU3047 C1608JB1H103KTA AE0022 Screw(FTH/M1.7+3 FEB.N)
- Page 22 PARTS LIST (DJ-C4) Ref.No. Parts N0. Parts Name T E EA C Ref.No. Parts N0. Parts Name T E EA Ref.No. Parts N0. Parts Name T E EA C Parts No. Parts Name side side side C327 CS0396 TMCP1D104MTR Q217 XU0062 UN9111-TX R261 RK3058 ERJ3GSYJ473V...
- Page 23 ADJUSTMENT DJ-C1T/C1E 1) Settings Power supply voltage 4.0V DC Item Procedure Set to 1. Reference voltage Tune in 144.95 MHz and set P/D voltage to 1.7 V. (VCO case attached) Adjust L214 1.7 +/- 0.1 V 2. Reference Transmit on 145.05 MHz and set reference frequency frequency to 145.05 MHz.
- Page 24 DJ-C4T/C4E/C4C 1) Settings Power supply voltage 4.0V DC For T-version F1 = 445.05MHz F2 = 444.95MHz E-version Fl =435.05MHz F2=434.95MHz C-version F1 =433.90MHz F2=433.80MHz Item Procedure Set to 1. Reference frequency Transmit on F1 and set reference frequency to F1 Adjust TC201 F1 +/- 100Hz 2.
- Page 25 PC BOARD VIEW CPU Unit side A(DJ-C1) CPU Unit side A(DJ-C1)
- Page 26 CPU Unit side A(DJ-C4) CPU Unit side B(DJ-C4)
- Page 27 MAIN Unit side A(DJ-C1)
- Page 28 MAIN Unit side B(DJ-C1)
- Page 29 MAIN Unit side A(DJ-C4)
- Page 30 MAIN Unit side B(DJ-C4)
- Page 31 PTT Unit side A(DJ-C1) PTT Unit side B(DJ-C1) PTT Unit side A(DJ-C4) PTT Unit side B(DJ-C4)
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