Philips 900 Series - Getting Started; Initial Setup and Charging

CIRCUIT DESCRIPTION 10
DDU: DCC DIGITAL UNIT
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Fig. 2 DCC Digital Unit 2113
The DCC Digital Unit 2113 consists of:
Mechanical Electrical
Loader mechanism Read / Write board
Tape deck mechanism Tape drive contro! board
Digital board
PCS 83 510 PHILIPS SOUND & VISION, 8G AUDIO - Service Training
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CIRCUIT DESCRIPTION
The functions performed by the DDU module
are:
* Control of the tape drive module in order
to:
= fast transport the tape (wind/rewind)
® open/close the loader
+ Playback of:
® 2-sector pre-recorded DCC cassettes
= 4-sector pre-recorded DCC cassettes
= Consumer recorded DCC cassettes
s Analog compact cassettes
* Main data and/or auxiliary recording of:
m DCC user tapes
= DCC super user tapes
+ Extended auxiliary channel marker
recording support
= Start marker recording
w= Skip marker recording
= Reverse marker recording (including
reverse lead in)
Next sector marker recording
Stop marker recording
Home marker recording
Use again marker recording
Lead in recording
Marker erasing
Blank/append search
User character recording
* Supplying the front controller module with
data about:
= System error codes and user error
codes
= Current status of the DCC digital
module
= Auxiliary information
» Marker ID's
Track/Index/Chapter number
- Absolute/Track time and remaining
time
: First/Last track
- User characters
System information
- Album title
- Artist name (credits)
> Current track
- Sung text
- Track list
® Tape drive module tacho time
= Cassette switches, tape type and tape
length
ws Tape counter
= Software version digital module and
tape drive module
Service support
= Channel select for eye pattern output
w Error indication per track
Initialization
Record pause
Auxiliary channel renumbering
Next/previous search
Direct access search (TOC based)
Absolute time estimation during
search/wind
AMS on ACC
Analog audio inputs and outputs
Digital audio inputs and outputs according
to IEC958
Full 1!€C958 user channel support during
recording and playback
PASC processing on al! sampling
frequencies, 32 kHz, 44.1 kHz and 48
kHz
SCMS support
Tape counter reset
General system reset
Audio output mute/fade and record
mute/fade
Source selection
Power failure handling
Standby handling ;
Sector selection (A, B,’C, D)
Level meter support
AD/DA control
PHILIPS SOUND & VISION, BG AUDIO - Service Training
PCS 83 511