Digital Audio Mode PCM Mode AC 3 Mode | Motorola DCT 2000 manual

3 - 1 6	I n s t a l l a t i o n

D o l b y D i g i t a l C a b l i n g D i a g r a m s

The DCT 2000 can deliver Dolby AC-3 audio to a Dolby Digital stereo receiver using the SPDIF RCA connector. Because the SPDIF does not carry audio for analog channels, use both the baseband L/R audio and the SPDIF connectors when connecting the DCT 2000 to a digital receiver.

PCM audio and AC-3 are the operation modes for the SPDIF connector. PCM audio mode is the default setting from the factory. Use the Electronic Program Guide (EPG) to select an alternative operating mode for the DCT 2000. If the EPG does not provide a PCM or AC-3 option, then the SPDIF port will default to PCM audio.

Table 3-1 describes the functionality of the audio ports based on the digital audio mode selected:

Table 3 - 1

Audio port functionality

Digital Audio Mode	PCM Mode	AC - 3 Mode
Left/Right RCA ports	Audio for digital and analog channels	Audio for analog channels only
SPDIF RCA port	PCM audio	Dolby AC-3
	(Audio on digital channels only)	(Audio on digital channels only)

For normal viewing:

1Set the DCT 2000 to PCM audio mode using the Electronic Program Guide.

2Adjust the Dolby Digital receiver input audio settings for the DCT 2000 to baseband L/R inputs (refer to stereo receiver instructions for more information). This prevents audio loss while channel surfing through analog channels.

3When a digital program has been selected for viewing, set the DCT 2000 to AC-3 mode using the EPG. Set the stereo receiver to digital audio input to experience AC-3 audio.

Many Dolby Digital receivers are designed with A/V output ports that feed external devices such as a VCR. The AV output content is based on the selected input device. If the DCT 2000 is selected as the input device for VCR recording, an alternate device cannot simultaneously use the Dolby Digital receiver, or the VCR will then record the secondary device. (Reference the Dolby Digital receiver installation manual for information on selecting and configuring A/V interfaces on the receiver).

DCT 2000 Installation Manual

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Motorola DCT 2000 L b y D i g i t a l C a b l i n g D i a g r a m s, Digital Audio Mode PCM Mode AC 3 Mode

Contents

Cursormessages Remote Page E r v i e w InstallationN t e n t s T r o d u c t i o n A g n o s t i c s TroubleshootingSpecification s D i n g t h e I R B l a s t e r O p t i o n CD player cabling Audio through Stereo Receiver Back view of remote control Standard cablingB r e v i a t i o n s a n d a c r o n y m s G u r e s Audio on the VCR Figure B-3 DCT 2000 Status − OSD B l e s Section T r o d u c t i o nA t u r e s a n d O p t i o n s Operational tests Number, and the repair/return procedureI n g T h i s M a n u a l DCT 2000 advanced set top terminal Asterisk L a t e d D o c u m e n t a t i o nC u m e n t C o n v e n t i o n s Y o u N e e d H e l p L l i n g f o r R e p a i r s G u r e 2 T 2 0 0 0 f r o n t p a n e l T 2 0 0 0 Installation M a n u a lE r v i e w O n t P a n e l N c t i o n YF e a t u r e B l e 2 A r p a n e l A r P a n e lE m G u r e 2 T 2 0 0 0 r e a r p a n e l G u r e 2 T 2 0 0 0 o p t i o n s T i o n sLeft and right audio RCA jacks used for stereo audio output M e N c t i o n M o t e C o n t r o l s DRC 400 Remote ControlDRC 400 remote control Or page Pages through menu screens and the program guide Remote control keysDisplays preset favorite cable channels Displays the help screen Back view of remote control DCT 2000 Installation Manual Installing Batteries in Remote Control F o r e Y o u B e g i n InstallationInstall i n g t h e D C T 2 0 0 A n d a r d C a b l i n g D i a g r a m A R F O N E m o d u l e c a b l i n g d i a g r a m Standard wiring with a Starfone module G u r e 3 A n d a r d V C R c a b l i n g A n d a r d V C R C a b l i n g D i a g r a m B y p a s s S w i t c h V C R C a b l i n g D i a g r a m s Cabling with RF Bypass module using RF return Module with return on Cable a I n M o d u l e C a b l i n g D i a g r a m sModule with a Starfone module Module with return on Cable B Illustrates a DCT 2000 when the return is on Cable B Return on Starfone module G u r e 3 1 T u r n o n C a b l e B See appropriate Cable diagram Composite VCR cabling Stereotv E r e o C a b l i n g D i a g r a m B a s e b a n d Audio on VCR/audio output on TV Stereo CD player cabling CD Player Left/Right RCA ports Audio for digital and analog channels Digital Audio Mode PCM Mode AC 3 ModeL b y D i g i t a l C a b l i n g D i a g r a m s Audio port functionality Video Baseband Video D i o t h r o u g h S t e r e o R e c e i v e r E r a t i o n a l C h e c k Feature Testing Procedure C a t i n g t h e I R R e c e i v e r o n t h e V C R IR transmitter installed in mounting bracketD i n g t h e I R B l a s t e r O p t i o n IR Blaster installed Install i n g t h e I R B l a s t e rE c k i n g t h e Installation Problem Possible Solution Troubleshooting Hum modulation distortion Specification sAppendix a 25 dB 136 channels, each @ +15 dBmV Specification s Appendix B A g n o s t i c sC e s s i n g D i a g n o s t i c s No function Moves the cursor up Displays the Diagnostics Main menuV i g a t i n g t h e D i a g n o s t i c s OFF state Off state Table B Diagnostic Diagnostic Figure B DCT 2000 general status − LEDs DCT 2000 General Status Cause Remedy Initialization status errors Error Code State Out-of-Band Receiver Status Data received Data Activity and EMM Data Activity IndicatorsStatus Off Blank Figure B Band receiver digital status − LED In-Band Receiver Status Carrier Lock − LED and OSD Band Data Activity Indicator − LED and OSDEMM Data Activity Indicator − LED and OSD S s value Meaning Band ErrorPCR Lock − OSD Only Unit Address Figure B Band receiver status error count short term OSD DCT 2000 Unit Address Figure B DENA firmware version LEDs Firmware Version Table B Channel Types − LED and OSD Current-Channel StatusLED Channel Types T LED D LED State Purchasable Indicator − LED and OSDPreview Indicator − LED and OSD Acquisition States Figure B Current Channel Status OSD for analog channel Current Channel Status OSD Table B Current channel status − OSD fields Current channel status − OSD fieldsVariables Figure B Renewable security status LEDs Renewable Security System LEDs and Status Current ModeTvPC Required − LED and OSD TvPC Status Upstream Modem Status Starvue II RF Diagnostics Mode LED and OSD IndicatorStarfone Diagnostics T Digit D Digit Meaning LEDOSDMode Mode Status Table B First LED indicating current status of download First LED ModeApplication Code Modules Memory Status Keyboard Diagnostics MAC Frequency OSD Interactive Info OSD B r e v i a t i o n s a n d a c r o n y m s 02/00469714-001-99