Service Manuals, User Guides, Schematic Diagrams or docs for : ARCAM CD62 Arcam-CD-62-Service-Manual

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>> Download Arcam-CD-62-Service-Manual documenatation <<

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Service Manual      CD62
                      Issue 1.0




DiVA CD62
Compact Disc Player (Text)




                                  ARCAM
                       Contents List




!   Contents list


!   Circuit description


!   Service guide


!   Circuit diagrams


!   Component overlays


!   Circuit board parts list


!   General assembly parts list
CD62 (text) Circuit Description

Summary                                                             Remote Control/PIC Micro

The main Motherboard/Display PCBs for the Diva CD players           Remote control data is received from the IREye on the display
may be assembled as three different versions:                       PCB and buffered by TR300 and TR301. The Programmable
                                                                    Interrupt Controller converts the RC-5 format data into the NEC
     !     DiVA CD62 (text) - With alternate components fitted      format required by the Sony micro.
           and the 92DAC upgrade connections omitted
           (L933AY).
     !     DiVA CD72 (text) - With the standard set of              Motor Driver
           components fitted (L899AY).
     !     DiVA CD92 (text) - With analogue components and          The status of the drawer is indicated to the micro by two micro
           connectors omitted, for use as a host motherboard for    switches `INSW' and `OUTSW' on SK205. The micro controls
           the plug-in 92DAC (L934AY).                              the drawer motor via driver IC303.

All systems are based on a Sony kit, comprising CDM14BL-
5BD25 CD transport / loader / laser mechanism, micro-controller     Clock Buffering
and fluorescent display.
                                                                    The clock and data signals LRCK, ADATA and BCLK from the
                                                                    mechanism connector SK300 are double buffered by IC300
Power Supplies                                                      before being delivered to the DAC.
The CD62 may be fitted with any of the following transformers
dependant on supply voltage required:-
                                                                    Power-On/Reset
     !     230VAC only - part number L849TX
     !     115VAC only - part number L850TX                         The power-on reset signal XRST (or RESET) is generated by
     !     100VAC only - part number L851TX                         R409, C410 and IC404. When the power is turned on, C410 is
                                                                    initially uncharged and pin 11 of IC404 is at high voltage, and
Later models are fitted with L867TX which is a 230/115VAC           thus the output is low. After a short time, C410 is charged via
transformer.                                                        R409; IC404 pin 11 is then low, and the output switches high
                                                                    (RESET is de-asserted).
The mains transformer has three secondary windings:

1.         13.7V 

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