Contents
925-536-12
Specifications
Audio Power Specifications US model
NEW
Electrical Adjustments
Table of Contents General
Assembly of Mechanism Deck
Diagrams
Section General
XR-C450
XR-C450 E, Saudi Arabia
XR-C440/XR-C450 E, Saudi Arabia
XR-C450 US, Canadian
Page
XR-C440
Page
XR-C450
Saudi Arabia model
US, Canadian model Saudi Arabia model
Section Disassembly
Front Panel ASS’Y
Cover ASS’Y
SUB PANEL, Mechanism Deck
Main BOARD, Heat Sink
Section Assembly of Mechanism Deck
Housing
ARM Suction
Gear LDG-FT
Lever LDG-A / LDG-B
Guide C
Torque Measurement Mode Torqu Meter Meter Reading
Section Mechanical Adjustments
Section Electrical Adjustments
Tape Tension Measurement Mode Torqu Meter Meter Reading
FM Auto Scan/Stop Level Adjustment
Tape Speed Adjustment
Dolby Level Adjustment
DB=0.775
FM Noise Focus Adjustment
AM MW Auto Scan/Stop Level Adjustment
FM Stereo Separation Adjustment
Adjustment Location
Main Board Conductor Side
Page
Page
Page
Page
IC361
IC Block Diagrams
BU2624F-E2
IC651
IC301 CXA2510AQ-T4 IC701 BA8270F-E2
IC671 BA3918-V2
IC PIN Function Description
ΜPD78058GC-913-3B9 System Control
Pin No Pin Name Function
Chassis Section
Cord with Connector
Section Exploded Views
3309-720-A Main BOARD, Complete
Front Panel Section XR-C440
LCD901 1-801-587-11 Display PANEL, Liquid Crystal
Front Panel Section XR-C450
118
Mechanism Deck Section MG-25C-136
M901 A-3291-665-A Motor ASSY, Main CAPSTAN/ Reel
Section Electrical Parts List KEY
SWITCH, KEY Board with LED Dspl
SWITCH, KEY Board with LED +
SWITCH, KEY Board with LED Mute
SWITCH, KEY Board with LED BTM
Main BOARD, Complete
KEY Main
Metal Glaze
Elect
Ref. No Description Remark C19 126-157-11
Conposition Circuit Block CP1
PIN, Connector 16P
PLUG, Connector 12P
GAP, Discharge Diode
RN5VD23AA-TL
IC1
MM1322XFBE
Jack Remote
Carbon
SWITCH, Slide Frequency Select
RES, ADJ, Carbon 1.0K Switch
SWITCH, Slide Power Select
RES, ADJ, Carbon 1.0K
Vibrator
Accessories & Packing Materials
Parts for Installation and Connections
Miscellaneous
Revision History
