manualshive.com logo in svg

Alinco DJ-191, Service Manual, Page: 1 / 47

Share
Download
Alinco DJ-191 Service Manual Download Page 1

Service M anual

CONTENTS

•SPECIFICATIONS.......................................................2

•C IR C U IT  DESCRIPTION............................................3

•SEMICONDUCTOR  DATA ........................................9

•EXPLO D ED  VIEW....................................................... 15

•P A R T S   LIS T .............................................................. 18

•A D JU S T M E N T ...........................................................21

• P C   BOARD VIEW.......................................................26

•C IR C U IT  DIAGRAM................................................... 41

•  BLOCK  DIAGRAM................................................... 45

ALINCO,  INC

Summary of Contents for DJ-191

Page 1: ...Service Manual CONTENTS SPECIFICATIONS 2 CIRCUIT DESCRIPTION 3 SEMICONDUCTOR DATA 9 EXPLODED VIEW 15 PARTS LIST 18 ADJUSTMENT 21 P C BOARD VIEW 26 CIRCUIT DIAGRAM 41 BLOCK DIAGRAM 45 ALINCO INC ...

Page 2: ...DTMF Subaudible Tones CTCSS TX RX 144 000 147 995MHz 135 000 173 995MHz 144 000 145 995MHz 144 000 145 995MHz 135 000 155 000MHz 135 000 173 995MHz 150 000 173 995MHz 135 000 173 995MHz 5 10 12 5 15 20 25 30kHz steps 40 Channels 1 Call Channel Memory 50 2 unbalanced 5 ppm 2ki2 nominal F3E FM 0 99 995MHz 5kHz max 1 5W 4 8V 3 5W 7 2V 5W 9 6 13 8V 12dB SINAD better than 16dB i 6 d B 12kHz 1st 21 25MH...

Page 3: ...iminates the signals of the unwanted frequencies The first IF amplifier Q105 then amplifies the signal of the selected frequency After the signal is amplified by the first IF amplifier Q105 it is input to pin 16 of the demodulator IC IC104 The second local signal of 21 25 MHz shared with PLL C reference oscillation which is oscillated by the internal oscillation circuit in IC102 and crystal X101 i...

Page 4: ...he power module IC101 The signal is then amplified by the power module IC101 and led to the antenna switch D101 and low pass filter L102 L103 L104 C113 C107 C116 and C114 where unwanted high harmonic waves are reduced as needed and the resulting signal is supplied to the antenna 3 APC Circuit Part of the transmission power from the low pass filter is detected by D1Q3 converted to DC and then ampli...

Page 5: ...output from the VCO unit Note The oscillation frequency is determined by turning Q301 ON and OFF Displayed frequencies Q301 TX 130 00 139 995 MHz RX 130 00 161 695 MHz OFF TX 140 00 173 995 MHz RX 161 70 173 995 MHz ON 4 CPU and Peripheral Circuits 1 LCD Display Circuit The CPU turns ON the LCD via segment and common terminals with 1 3 the duty and 1 3 the bias at the frame frequency is 85Hz 2 Dis...

Page 6: ...is valid or invalid The judged signal is converted into a 4 bit code and sent to pin 29 of 1C5 7 Tone Encoder The CPU IC5 is equipped with an internal tone encoder The tone signal 67 0 to 254 1 Hz is output from pin 11 of the CPU to the varicap of the VCO for modulation 5 CPU Terminal Functions M38267M8L XA0413 C C C 3 C 3 C 5 0 C 3 C 3 C 5 C 5 C 5 C 5 C 5 0 0 0 0 0 0 0 0 0 e L D L D L D L D L D l...

Page 7: ...1 P45 TXD1 UTX 0 Pulse UART data transmission output 22 P44 RXD1 URX 1 Pulse UART data reception input 23 P 43W TO U T TBST 0 Pulse Tone burst 1750Hz output European version 24 P42 INT2 RE2 1 Active low Rotary encoder input 25 P41 INT1 RE1 1 Active low 26 P40 PTT 1 Active high PTT input 27 P77 DSW 0 Active low DTM F IC ON OFF no O r o OTPv O I u 1 A l w Active high DTMF signal detection input duri...

Page 8: ... DAO 0 65 P37 SEG25 S25 o 66 P36 SEG24 S24 0 67 P35 SEG23 S23 o 68 P34 SEG22 S22 o 69 P33 SEG21 S21 o 70 P32 SEG20 S20 o 71 P31 SEG19 S19 0 72 P30 SEG18 S18 0 73 SEG17 S17 0 74 SEG16 S16 0 75 SEG15 S15 0 76 SEG14 S14 o 77 SEG13 S13 o LCD segment signal 7R SEG12 S12 o 79 SEG11 S11 0 80 SEG10 S10 0 81 SEG9 S9 o 82 SEG8 S8 0 83 SEG7 S7 0 84 SEG6 S6 0 85 SEG5 S5 0 86 SEG4 S4 0 87 SEG3 S3 0 88 SEG2 S2 ...

Page 9: ...S Power terminal usually 0V 6 SD 0 The decoded DTM F data is output as serial 4 bit data starting with the LSB 7 ACK 1 The ACK signal is used to shift out the data to pin 2 PD Four pulses are required to shift out a four bit DTM F code The leading edge of the first pulse latches the data into the shift register before shifting out 8 STD 0 This signal goes HIGH when a DTM F code is sent This signal...

Page 10: ...Anti aliasing Alter rtr Dial tone Alter Timing generating circuit High group band pass filter Frequency detection circuit Low group band pass fitter Frequency detection circuit to j Ö osci osco O ü EST STD Shift register 0 a c k Ö S D 3 M5222FP 600C XA0385 Electronic Volume l Vi Ri 10 ...

Page 11: ...n CPS n 3 18 Xout RST c 4 17 OP2 Vcc c 5 16 OP1 Fin 1 c 6 15 Fin2 Lockl c 7 14 Lock2 PD1 c 8 13 PD2 VT1 c 9 12 VT2 VF c 10 11 GND Block Diagram 5 RH5VL25AA T1 XA0309 C MOS Voltage Detector 6 RH5VA32AA T1 XA0198 C MOS Voltage Detector Block Diagram Block Diagram 11 ...

Page 12: ...7 MC3372VM EL XA0343 Narrow Band FM IF IC Block Diagram GND Vcc 8 NJM2070M T1 XA0210 Audio Power Amplifier TOP View 12 ...

Page 13: ... INPUT TOP VIEW 10 Transistor Diode and LED Ontline Drawings l op View DA204U T106 FMA7XT148 MA716TW MA741WA TX MA742 TX XD0130 XU0027 XD0118 XD0251 XD0250 f t H B T f i f l f l A 7 X L n lh ET n f l B B T n a ET UN211HTX XÜb04b X L 6 P xi cr UN2214TX XÚÓÓ38 UN9111 TX XU0b62 XP1501 TX XU0172 X L 8 D X L x r 6 A IT C1 L C2 XL 5 R r m u B1 E B2 13 ...

Page 14: ......

Page 15: ...t o r o a o o J CD O o j y s O G l c D C o X X o o t ro co co X o ...

Page 16: ...EXPLODED VIEW 1 Front View 1 15 ...

Page 17: ...FG0173 0P12O3H M BCKOZAA FG0185 ...

Page 18: ...3 Rear View AF0020 17 ...

Page 19: ...729 TX D13 XD0291 Diode HA729 TX D14 XL0036 LED SHL 310MTT86 DIS XL0036 LED SHL 310HTT8G DIG XL0036 LED SHL 310HTT86 1 17 XL0036 ED SML 310HTT8G Ref No Parts No D escription Parts Name Ver ICI XA0351 EEP ROM 24LC1GBT 1 SN IC2 XA0309 IC RII5VL25AA T1 IC3 XA0198 1C RH5VA32AA T1 1C4 XA0383 1C S 81235SG QI T2 1C5 XA0413 1C M38267HL 0TP ICO XA0209 1C NJM2100U 11 1CS XA0344 1C LC73881H TLN Ji HACLII2GG ...

Page 20: ...SYJ472V R1012 RK3050 Ch p R ERJ3GSYJ103V R1013 RK3C50 Ch P R ERJ3GSYJ103V R1014 RK3C38 Ch p R ERJ3GSY I102V R1015 RK3C38 Ch P R ERJ3GSYJ102V R1016 RK3C62 Ch p R ERJ3GSYJ104V R1017 RK3050 Ch p R ERJ3GSYJ103V R1018 RK3050 Ch p R ERJ3GSYJ103V R1019 RK3050 Ch P R ERJ3GSYJ103V R1020 RK3035 Ch p R ERJ3GSYJ5G1V R1021 RK3035 Ch p R ERJ3GSYJ5G1V Ref No P a rts No D e s c rip tio n P a rts Nam e V er R1022 ...

Page 21: ... No Parts No Description Parts Name Ver V C O Unit C301 CU3035 Chip C C1G08J lil H102KTA C302 CS0377 Chip TanLal THCHU0G47GHTR C303 CU3047 Chip C C1G08JB1H103KTA C304 CU3047 Chip C C1G08JB1HI03KTA C305 CU3031 Chip C C1G08JB1II471KTA C306 CU300G Chip C C1G08CI11II050CTA C307 CU3035 Chip C C1G08JU1II102KTA C308 CU300G Chip C C1608CH1II050CTA C309 CU3003 Chip C C1608CH1II020CTA C310 CU3031 Chip C C1G...

Page 22: ...59 Chip C C1608JF1E104ZTA Cl BO C1J3047 Chip C C1G08JB1II103KTA C161 CU3047 Chip C C1B08 1BII1103KTA Cl 63 CS0377 Chip Tantal TMCHBOG476MTR C1B4 CS0049 Chip Tant3l THCSA1C105HTR Ref No Parts No Description Parts Name Ver C165 CU3Û21 Ch P c C1G08CI11IIG80JTA C16G CU3059 Ch P c C1608JF1E1C4ZTA CIB7 CU3016 Ch P c C1G08CII1II270JTA C168 CU3015 Ch P c C1608CII1II220JTA C169 CS0049 Ch p Tantal THCSAIC I...

Page 23: ...ERJ3GSYJ103V T F TE 8118 HK3051 Chip R ERJ3GYJ123V FA TEH R119 RK3038 Chip R F RJ3GSYJ102V 121 RK3050 Chip R ERJ3GSYJ103V R122 RK3030 Chip R ERJ3GSYJ221V Ref No Parts No Description P arts Nam e V R123 RK3026 Ch P R ERJ 3GSYJ101V R124 RK3022 Ch p R ERJ3GSYJ470V R126 RK3050 Ch P R ERJ3GSYJ103V R128 RK3052 Ch P R ERJ3GSYJ153V R130 RK3050 Ch p R ERJ3GSYJ103V R131 RK3038 Ch p R ERJ3GSYJ102V R133 RK305...

Page 24: ...7MHz XF102 XF0022 FG0212 FG215 TS0101 Crislal Filler UN 1 21 7MHz Cushion DJ190 Cushion DJ191 PM Shield Ref No Parts No Description Parts Name Ver EJ 28U C701 C702 C703 C705 C709 C710 C711 C712 C714 C715 CU3015 CU3015 CU3015 CS0237 CS0049 CU3015 CS0236 CU3015 CS0049 CS0049 C1608CH1H220JTA C1608CH1H470JTA C1608CH1H101JTA TMCMA1A475MTR TMCSA1C105MTR C1608JF1E104ZTA TMCMA0J685MTR C1608JB1H102KTA TMCS...

Page 25: ... frequency Impedance Measuring range Measurable frequency Sensitivity Output frequency Output impedance Measurable frequency Input level Distortion level Up to 2 GHz or more Up to 200 MHz 50 Q unbalanced 0 1 W 10 W Up to 100 kHz 1 mV to 10 V 67 Hz to 10 kHz 800 Q unbalanced 1 kHz Up to 40 dB 1 1 0 0 11 Frequency counter Measurable frequency Up to 200 MHz Measurable stability Approx 0 1 ppm 12 Line...

Page 26: ...ss the POWER key chEc appears on the LCD for about two seconds and C appears indicating the unit is in the adjustment mode Channel frequencies used in the adjustment mode Channel Channel function Frequency 1 Reference frequency adjustment 145 MHz 2 High power adjustment 145 MHz 3 Low power adjustment 145 MHz 4 Minimum frequency sensitivity adjustment 130 MHz 5 Medium frequency sensitivity adjustme...

Page 27: ...red as the high power setting 1 In the adjustment mode select channel 3 by rotating the main tuning dial 2 Hold down the F key and press the H L key to enter the low power mode L appears at the lower left of the display 3 Hold down the PTT key to start transmission 4 While watching the reading of the TX power meter set the output power to the value closest to 0 5 W by using the UP and DOWN keys 5 ...

Page 28: ...otate the VR2 on the printed circuit board of the transceiver until the deviation is set to 4 5 KHz This function is only for checking the DTMF code not adjusting it 1 In the adjustment mode select channel 10 by rotating the main tuning dial 2 Press the PTT key DTMF code 1 is automatically sent and you will hear the monitoring tone from the speaker 3 Check the deviation with the transceiver tester...

Page 29: ...another minute Sensitivity is adjusted by applying the optimum voltage from the CPU to the varicap of the tuning circuit The coil manipulation for L109 L110 L111 and L112 is not required If any of the coils is accidentally rotated return it to the default position as described below before adjusting the sensitivity 1 Program any frequency within 145 MHz 1 on memory channel 5 2 Holding down both th...

Page 30: ...PC BOARD VIEW CPU Unit Side A VALUE ...

Page 31: ......

Page 32: ...CPU Unit Side B VALUE R79 R84 R 1008 J1 T JPMPER Tfi E IK IK 0 C TO UR0018 L T Û P â c HUB y v r i j p T n u J7 28 ...

Page 33: ... C D D Q O z LU QC LU LL LU CC JPMPEH ...

Page 34: ...RF Unit Side A VALUE REFERENCE 30 ...

Page 35: ...R F Unit Side B VALUE ...

Page 36: ... REFERENCE ...

Page 37: ...SW Unit Side A VALUE REFERENCE S i 5 0 2 SW Unit Side B VALUE REFERENCE 6BE7B 03Z003 ...

Page 38: ...PTT Unit Side A VALUE REFERENCE PTT Unit Side B VALUE REFERENCE 34 ...

Page 39: ... S TE T j a m S B O C 3 08 3E2Ï sa_ _ 1it 1 d E ll É 3 f t ffte VCO Unit Side B VALUE REFERENCE i 3 IS 1UH g 0 i n 1 r0 el ÏBÂ1I i n f p gfe i pfi f g p 1 rwl MBWÉI iif IT lS 1SS31I Z P iw S æ f m n v I V 3 0 S C 304 Û 30 tr ri E 1IR 30 v K C 5 B 3 f H l f 1 r R A f l U R 5 1 g V nao i f u l f i l I ...

Page 40: ...JACK Unit Side A VALUE REFERENCE JACK Unit Side B VALUE REFERENCE b 1ack 36 ...

Page 41: ...4N CHARGE Unit Side B VALUE REFERENCE TSQ UNIT Side A VALUE REFERENCE 3 c a n m I It T 1 m s m U EE s B ï 5 m ër 1 U S b k 108P 1 1 6 i J i s n n s o ts 5 li_ii Q t U i i V J 7 0 S y T O 4 r m i 1 d 1 0 11 1I 1 t 1 t 1 I 1 i T T m in 1u ro 1 9 T ED 47P a 1 ED s i C J TSQ UNIT Side B VALUE REFERENCE ...

Page 42: ...CIRCUIT DIAGRAM PTT UNIT SW402 SOP 112HST VCO UNIT 38 ...

Page 43: ...T 2 K 0 1 3 K 0 3 SW502 U P n _ 0 o SOP 112HST SP JACK UNIT CN901 o o o 0 o 0 1 SP1 2 SPG 3 SP2 4 URX 5 C3V 6 MIC 7 GND L902 in L901 T 1u l i O S S J Q os L904 lu T T L905 1u rS s s s JK901 HSJ1493 01 JK902 HSIJ1 102 01 n _ i Tin 10 5 4 0 39 ...

Page 44: ...C C3V N C NC N C STB2 TSOD TIN TQ TlC D CNO o o o4 o a o o o o o o o 13 12 14 11 15 10 16 9 17 8 1A 7 IC701 ASK2341 iy 6 20 5 21 4 22 3 2 3 2 24 1 X701 3 6864M H z i ï__x__ 22P C701 1 R 719 NC p U J 55të 3 2ZK C 712 H I R 7 ie WA BIAS DENNATU 1C701NO OOUSADENNATU WO 40 13 8V ...

Page 45: ...RF UNIT R X 1 4 5 M H z S Q O F F V O L L E V E L 1 T X 1 4 5 M H z L O W P O W E R BlSTXSf TO CPU BOARD 43 44 ...

Page 46: ...T O TSQ U N IT m TA H 1 1 R 7 9 1 1 JQ 00 o Q 1 1 S S CD 1 1 JUM PER c_ ro CPU UNIT ...

Page 47: ...10 l S AV 26 o í e i 2SC335S 0 1 0 2 2SC3355 BUFFER VCO BUFFrER 0303 0301 0302 s 01 17 D T C i1 EU 2SC5065 2SC50Ó5 2SC4099 01 03 2SC4031 IC 102 MS4075CP L nJ RX LED DRIVER LCD LAMP SW CTRL SW 09 10 UN5210 ROTARY ENCOOER CPU CLOCK U 9 M H j KEY INPUT j Í j f í j l Í j Í T c j T c jv jvc j c j c j TONE DECODER IC1 24LC166T L 0110 2SA12I3 LCD DRIVE DISPLAY U J I o o 7 s O HM Q 30 0 1 1 1 2SA1213 011 ...

Reviews:

No comments