Encoder | Icom IC-T90A specification

[AF UNIT]

REF	ORDER		DESCRIPTION
NO.	NO.		DESCRIPTION
NO.	NO.

J252	6450001680	CONNECTOR	HSJ1122-010010
J253	6450002250	CONNECTOR	HSJ1456-010320
S251	7600000210	ENCODER	TP70N00E20-15F-1903
W1	7030010040	S.JUMPER	ERJ2GE-JPW
W2	7030010040	S.JUMPER	ERJ2GE-JPW
W3	9014505003	WIRE	22/07/070/W02/W02
EP1	0910054435	PCB	B 5735E
EP3	6910012350	S.BEAD	MMZ1608Y 102BT
EP4	6910012350	S.BEAD	MMZ1608Y 102BT
EP5	6910012350	S.BEAD	MMZ1608Y 102BT
EP6	6910013310	S.BEAD	MMZ1608D121B
EP7	6910013310	S.BEAD	MMZ1608D121B
EP8	6910013310	S.BEAD	MMZ1608D121B

[LOGIC UNIT]
REF	ORDER		DESCRIPTION
NO.	NO.		DESCRIPTION
NO.	NO.

IC1	1140010730	S.IC	M30220MA-116RP	[USA]
	1140010710	S.IC	M30220MA-114RP	except [USA]
IC2	1140009240	S.IC	HN58X24128FPI
IC5	1130006220	S.IC	TC4W53FU (TE12L)
IC91	1130007110	S.IC	TC7W04FU (TE12L)
IC92	1130007020	S.IC	TC7S66FU (TE85R)
IC141	1180002150	S.IC	NJM2370U32-TE1
IC142	1110005730	S.IC	S-80928CNMC
IC241	1110003800	S.IC	NJM2904V-TE1
Q1	1590001690	S.TRANSISTOR	UN9115 (TX)
Q2	1590001690	S.TRANSISTOR	UN9115 (TX)
Q3	1590001400	S.TRANSISTOR	XP1214 (TX)
Q4	1520000650	S.TRANSISTOR	2SB1201-S-TL
Q6	1590001400	S.TRANSISTOR	XP1214 (TX)
Q8	1520000460	S.TRANSISTOR	2SB1132 T100 R
Q9	1590001170	S.TRANSISTOR	XP1501-(TX) .AB
Q10	1540000350	S.TRANSISTOR	2SD2216-S (TX)
Q11	1590001140	S.TRANSISTOR	UN9210 (TX)
Q40	1590001860	S.TRANSISTOR	UN9215 (TX)
Q91	1540000350	S.TRANSISTOR	2SD2216-S (TX)
Q141	1540000350	S.TRANSISTOR	2SD2216-S (TX)
Q142	1590001170	S.TRANSISTOR	XP1501-(TX) .AB
Q145	1520000460	S.TRANSISTOR	2SB1132 T100 R
Q146	1590001170	S.TRANSISTOR	XP1501-(TX) .AB
Q147	1520000460	S.TRANSISTOR	2SB1132 T100 R
Q151	1540000350	S.TRANSISTOR	2SD2216-S (TX)
Q201	1520000650	S.TRANSISTOR	2SB1201-S-TL
Q202	1590001170	S.TRANSISTOR	XP1501-(TX) .AB
Q301	1590002380	S.TRANSISTOR	XP1115 (TX)
Q302	1520000430	S.TRANSISTOR	2SB1462-R (TX)
Q304	1550000010	S.FET	2SJ364-Q (TX)
Q305	1550000010	S.FET	2SJ364-Q (TX)
Q307	1590001440	S.TRANSISTOR	UN9214 (TX)
Q310	1590001190	S.TRANSISTOR	XP6501-(TX) .AB
Q311	1590001210	S.TRANSISTOR	XP5601-(TX) .AB
Q312	1590001190	S.TRANSISTOR	XP6501-(TX) .AB
Q342	1550000010	S.FET	2SJ364-Q (TX)
Q343	1550000010	S.FET	2SJ364-Q (TX)
Q451	1530002690	S.TRANSISTOR	2SC4116-GR (TE85R)
D5	1790000860	S.DIODE	MA133 (TX)
D6	1790000670	S.DIODE	SB07-03C-TB
D51	1790000820	S.DIODE	MA132K (TX)	[USA], [CAN]
	1790000850	S.DIODE	MA132WK (TX)	[GEN], [SEA]
D52	1790000820	S.DIODE	MA132K (TX)
D53	1790000850	S.DIODE	MA132WK (TX)	except [GEN]
D56	1790001250	S.DIODE	MA2S111-(TX)	except [GEN]
D58	1790001200	S.DIODE	MA6S121 (TX)
D60	1790001250	S.DIODE	MA2S111-(TX) [USA], [CAN] only
D91	1790001560	S.DIODE	1SS372 (TE85R)

[LOGIC UNIT]

REF	ORDER		DESCRIPTION
NO.	NO.		DESCRIPTION
NO.	NO.

D141	1790001250	S.DIODE	MA2S111-(TX)
D143	1790001250	S.DIODE	MA2S111-(TX)
D152	1790001250	S.DIODE	MA2S111-(TX)
D253	1790001250	S.DIODE	MA2S111-(TX)
D300	1790001560	S.DIODE	1SS372 (TE85R)
D301	1790001560	S.DIODE	1SS372 (TE85R)
D302	1790001560	S.DIODE	1SS372 (TE85R)
X1	6050011080	S.XTAL	CR-687 (6.7584 MHz)
L24	6200003640	S.COIL	MLF1608E 100K-T
L140	6200003640	S.COIL	MLF1608E 100K-T
R1	7510001660	S.THRMISTOR	NTCG16 4LH 473KT
R2	7030005090	S.RESISTOR	ERJ2GEJ 104 X (100 kΩ )
R4	7030008280	S.RESISTOR	ERJ2GEJ 271 X (270 Ω )
R5	7030008280	S.RESISTOR	ERJ2GEJ 271 X (270 Ω )
R8	7030005240	S.RESISTOR	ERJ2GEJ 473 X (47 kΩ )
R9	7030005310	S.RESISTOR	ERJ2GEJ 124 X (120 kΩ )
R10	7030005050	S.RESISTOR	ERJ2GEJ 103 X (10 kΩ )
R11	7030000150	S.RESISTOR	MCR10EZHJ 12 Ω (120)
R12	7030005240	S.RESISTOR	ERJ2GEJ 473 X (47 kΩ )
R13	7030005240	S.RESISTOR	ERJ2GEJ 473 X (47 kΩ )
R14	7030005240	S.RESISTOR	ERJ2GEJ 473 X (47 kΩ )
R15	7030000150	S.RESISTOR	MCR10EZHJ 12 Ω (120)
R16	7030005120	S.RESISTOR	ERJ2GEJ 102 X (1 kΩ )
R17	7030005120	S.RESISTOR	ERJ2GEJ 102 X (1 kΩ )
R18	7030010390	S.RESISTOR	ERA3YED 821V
R19	7030005050	S.RESISTOR	ERJ2GEJ 103 X (10 kΩ )
R20	7030010370	S.RESISTOR	ERJ2RHD 561 X (560 Ω )
R21	7030005120	S.RESISTOR	ERJ2GEJ 102 X (1 kΩ )
R22	7030004980	S.RESISTOR	ERJ2GEJ 101 X (100 Ω )
R23	7030005120	S.RESISTOR	ERJ2GEJ 102 X (1 kΩ )
R24	7030004980	S.RESISTOR	ERJ2GEJ 101 X (100 Ω )
R27	7030005240	S.RESISTOR	ERJ2GEJ 473 X (47 kΩ )
R28	7030005120	S.RESISTOR	ERJ2GEJ 102 X (1 kΩ )
R29	7030010380	S.RESISTOR	ERJ2RHD 471 X (470 Ω )
R32	7030004980	S.RESISTOR	ERJ2GEJ 101 X (100 Ω )
R33	7030005120	S.RESISTOR	ERJ2GEJ 102 X (1 kΩ )
R34	7030004980	S.RESISTOR	ERJ2GEJ 101 X (100 Ω )
R35	7030005120	S.RESISTOR	ERJ2GEJ 102 X (1 kΩ )
R38	7030005090	S.RESISTOR	ERJ2GEJ 104 X (100 kΩ )
R39	7030005240	S.RESISTOR	ERJ2GEJ 473 X (47 kΩ )
R40	7030008010	S.RESISTOR	ERJ2GEJ 123 X (12 kΩ )
R42	7030005010	S.RESISTOR	ERJ2GEJ 681 X (680 Ω )
R43	7030009160	S.RESISTOR	ERJ2GEJ 181 X (180 Ω )
R46	7030005710	S.RESISTOR	ERJ2GEJ 121 X (120 Ω )
R47	7030005710	S.RESISTOR	ERJ2GEJ 121 X (120 Ω )
R51	7030005160	S.RESISTOR	ERJ2GEJ 105 X (1 MΩ )
R53	7030005070	S.RESISTOR	ERJ2GEJ 683 X (68 kΩ )
R54	7030005050	S.RESISTOR	ERJ2GEJ 103 X (10 kΩ )
R55	7030008270	S.RESISTOR	RR0510R-104-D (100 kΩ )
R56	7030005040	S.RESISTOR	ERJ2GEJ 472 X (4.7 kΩ )
R61	7030005010	S.RESISTOR	ERJ2GEJ 681 X (680 Ω )
R62	7030004990	S.RESISTOR	ERJ2GEJ 221 X (220 Ω )
R63	7030005010	S.RESISTOR	ERJ2GEJ 681 X (680 Ω )
R64	7030004990	S.RESISTOR	ERJ2GEJ 221 X (220 Ω )
R65	7030005010	S.RESISTOR	ERJ2GEJ 681 X (680 Ω )
R66	7030004990	S.RESISTOR	ERJ2GEJ 221 X (220 Ω )
R67	7030005010	S.RESISTOR	ERJ2GEJ 681 X (680 Ω )
R68	7030004990	S.RESISTOR	ERJ2GEJ 221 X (220 Ω )
R69	7030005010	S.RESISTOR	ERJ2GEJ 681 X (680 Ω )
R70	7030004990	S.RESISTOR	ERJ2GEJ 221 X (220 Ω )
R71	7030005010	S.RESISTOR	ERJ2GEJ 681 X (680 Ω )
R72	7030004990	S.RESISTOR	ERJ2GEJ 221 X (220 Ω )
R73	7030005010	S.RESISTOR	ERJ2GEJ 681 X (680 Ω )
R74	7030004990	S.RESISTOR	ERJ2GEJ 221 X (220 Ω )
R75	7030005040	S.RESISTOR	ERJ2GEJ 472 X (4.7 kΩ )
R80	7030005080	S.RESISTOR	ERJ2GEJ 823 X (82 kΩ )
R81	7030005080	S.RESISTOR	ERJ2GEJ 823 X (82 kΩ )
R82	7030005720	S.RESISTOR	ERJ2GEJ 563 X (56 kΩ )
R83	7030005720	S.RESISTOR	ERJ2GEJ 563 X (56 kΩ )
R84	7030005310	S.RESISTOR	ERJ2GEJ 124 X (120 kΩ )
R85	7030005050	S.RESISTOR	ERJ2GEJ 103 X (10 kΩ )
R88	7030005050	S.RESISTOR	ERJ2GEJ 103 X (10 kΩ )
R89	7030005240	S.RESISTOR	ERJ2GEJ 473 X (47 kΩ )
R91	7030005050	S.RESISTOR	ERJ2GEJ 103 X (10 kΩ )
R92	7030004970	S.RESISTOR	ERJ2GEJ 470 X (47 Ω )
R93	7030004970	S.RESISTOR	ERJ2GEJ 470 X (47 Ω )

S.=Surface mount

6 - 6

Image 37

Icom IC-T90A manual Encoder

Contents

IC-t90a Ordering Parts IntroductionRepair Notes Sample Order Table of Contents General SpecificationsTransmitter Frequency MHz ReceiverWFM WFM Logic Unit Inside ViewsTop view Bottom view RF Unit AF UnitTop view Bottom view Removing the rear panel Removing the AF unit Disassembly Instructions Receiver Circuits Circuit Description 5 2ND if and Demodulator Circuits AF Unit 4 1ST Mixer and 1ST if Circuits RF, AF and VCO UnitsRF Circuit Squelch Circuitaf and Logic Units AF Amplifier Circuit AF Unit2ND if and Demodulator Circuit Transmitter Circuits APC Circuit RF Unit PLL CircuitsGeneral APC Circuit PLL Circuit VCO Divider Circuit VCO and RF Units 2 R3V Switch IC AF Unit IC51 Power Supply CircuitsPort Allocations Voltage Line CPU Logic Unit IC1 Dtcs CtselLCD SEG35 Operation on the Adjustment Mode Adjustment ProceduresOperation on the Output Power Adjustment Preparation JIG ConnectionAD-92SMA PLL Lock Trimmer AdjustmentVCO Voltage RF Unit VCO UnitL16 L456 L19 Reference Adjustment Mode AdjustmentsDial Frequency Adjustment Mode Adjustments PH ch 53.900 MHz Transmitting 8V 145 MHz Displayed frequency Connect an amme 45 a R325 Logic UnitR365 R326 Ctcss Coil DetectorTracking CP0 AF UnitIC151, pin 12 SD line L151 Displayed frequency Connect a DC volt Maximum voltage Meter Adjustment Adjustment Condition Operation Order Description Section Parts List Coil Eljre 3N9Z-F Ceramic ECJ0EB1H681K Connector AXK6S30445P Ceramic ECJ0EC1H060C Encoder Trimmer Tantalum ECST1EY474R Ceramic ECJ0EC1H2R5B Accessories Mechanical Parts and DisassemblyChassis Parts RF Unit Logic UnitChassis Parts AF Unit VCO Unit Transistors and Fets SEMI-CONDUCTOR InformationDiodes Name TOP View Board LayoutsMC1 Microphone DUP Bottom View Logic unitSP1 SQL PTT RF Unit RF unit VCO Unit AF UnitEXT.SP EXT.MICREMOTO S253S252 Logic Unit Block Diagram Loop LPF HPF Drive BPF ANT FIL AMP Chassis 11 1 Logic Unit Voltage Diagram IC5 2SK3476 11 2 RF Unit BU4094BCFV 11 3 AF Unit URL 32, Kamiminami, Hirano-ku, Osaka 547-0003, Japan