NAD T744 - Page 59

59
Reference No.
Database Part No. Descri
p
tion
KEY BOARD AND LED BOARD
PCB ASSEMBLY
50-951-0744-90T744 KEYBOARD AND LED ASSEMBLY
KEY BOARD
PCB ASSEMBLY 27-922-0744-90 T744AH
(
US
)
Ke
y
board Board Assembl
y
CAPACITORS
C212 03-002-0135-00 CAP ELEC GS 1000uF 10V 20% 85C RAD ST5
C255,C258 03-002-0137-00
CAP ELEC SS 1uF 50V 20% 85C RAD HEIGHT=
7mm MAX
C214 03-002-0138-00 CAP ELEC SS 0.1uF 50V 20% 85C RAD
C211,C210,C209,C208 03-002-0143-00
CAP ELEC SS 47uF 16V 20% 85C RAD HEIGHT =
7mm MAX
DIODES
D212,D214-D218 04-001-0001-00 DIODE SW 4NS DO35 1N4148
D220 04-002-0040-00
DIODE ZENER BZX79 5.1V 1/2W 5% DO35 BZX79-C
5.1V
IR
D201 04-004-0008-91 IR RX 940nm 37.9KHz SHIELD ST PIC-37143TE5-H
TRANSISTORS
Q204,Q205,Q203,Q206 05-001-0072-00 XTR SS NPN HEF 100 200MHz TO-92 C1815Y
Q201 05-001-0080-00 XTR SS PNP HFE 100 200MHz TO-92 A1015Y
ENCODER
M201 06-006-0009-90
ENCODER ROTATRY STD L=20MM VERT. W/O
CLICK EC162102F2B-HA1-002
TACT SWITCHES
S201-S216,S218 11-007-0060-90 SW TACT NO 1P1T 50mA/12V VER H=7mm
VFD
VD201 12-005-0028-00 VFD 16-BT-132-GNK 16 GRIDX36 ANODE 2
CRYSTALS
X201,X202 14-002-0023-00
CRYSTAL 20.000MHz 30ppm 32pF HC-49/S 01-
CR1-02-20M000-32-3030
ICS
U210 01-002-0053-00
IC EEPROM 2K BYTE 250nS PDIL ENDURANCE AT
24C16
U202 01-010-0022-00
IC MCU 8 Bit 16KROM 1024 Byte Xram Plcc
AT89C51RB2-SL
U201 01-010-0023-00
IC MCU 8 BITS 64K ROM 1792 BYTES RAM PLCC
AT89C51RD2
U208 01-012-0062-00
IC LOGIC 8-CHANNEL ANALOG MUX/DEMUX SMD
74HC4051D
U209 01-012-0064-00
IC LOGIC OCTAL BUS TRANSCEIVER 3-STATE SOP
74AHC245D
U204-U207 01-012-0065-00
IC LOGIC 8-STAGE SHIFT-AND-STORE BUS
REGISTER SMD SO16 HEF4094BT
U203 01-015-0004-00 IC VFD DRIVER SMD QFP PT6306
U214 01-026-0002-90
IC MICROCONTROLLER RESET MONITORS
MAX810LTR