Sony MDX-C6500R Avrh, Avrl, KEYIN1, RCIN0, Dstsel, Quality, Vsm, Volatt, Colsw, Colsel, Davn

Page 47

Pin No.

Pin Name

I/O

 

Description

 

 

 

 

 

43

AVRH

I

Reference voltage (+5V) input terminal (for A/D converter)

44

AVRL

I

Reference voltage (0V) input terminal (for A/D converter)

45

 

AVSS

Ground terminal (for analog system)

 

 

 

 

 

 

 

 

 

 

Key input terminal (A/D input) (LSW901 to LSW908, S901 to S904)

46

KEYIN0

I

OFF, SOURCE, SOUND, MENU, PTY DSPL, LIST, ENTER, MODE,

 

 

 

 

SEEK/AMS - .m+ >M, DISC/PRST +, PRST/DISC - keys input

 

 

 

 

 

47

KEYIN1

I

Key input terminal (A/D input) (LSW810, LSW909 to LSW917)

Z, D-BASS, TA, FA, 6 to 3 SHUF 2, REP 1 keys input

 

 

 

 

 

48

RCIN0

I

Rotary remote commander key input terminal (A/D input)

 

 

 

 

 

49

DSTSEL

I

Destination setting terminal (fixed at “L” in this set)

50

QUALITY

I

Noise level detection signal input at SEEK mode (A/D input)

51

FMAGC

I

FM AGC detection signal input from the FM/AM tuner unit (TU1) (A/D input)

 

 

 

 

 

52

MPTH

I

Multi-path detection signal input from the RDS decoder (IC51) (A/D input)

 

 

 

 

 

53

 

VSM

I

FM and AM signal meter voltage detection input from the FM/AM tuner unit (TU1)

 

(A/D input)

 

 

 

 

 

 

 

 

 

 

 

 

54

 

VCC

Power supply terminal (+5V)

 

 

 

 

 

 

 

 

 

 

Internal RAM reset detection signal input terminal

55

RAMBU

I

Input terminal to check that RAM data are not destroyed due to low voltage

 

 

 

 

This checking is made within 100 msec after reset Not used (fixed at “H”)

56

TUNATT

O

Muting on/off control signal output of the FM/AM tuner signal “H”: muting on

57

VOLATT

O

Pre amplifier muting on/off control signal output to the electrical volume (IC151)

“L”: muting on

 

 

 

 

 

 

 

 

 

 

 

58

 

ATT

O

Audio line muting on/off control signal output terminal “H”: muting on

 

 

 

 

 

59

AMPON

O

Standby on/off control signal output to the power amplifier (IC611)

“L”: standby mode, “H”: ampifier on

 

 

 

 

 

 

 

 

 

 

 

60

AMPATT

O

Power amplifier muting on/off control signal output to the power amplifier (IC611)

“L”: muting on

 

 

 

 

 

 

 

 

 

 

 

 

61

COLSW

I

Setting terminal for the illumination color

“L”: 2 color, “H”: 1 color (fixed at “H” in this set)

62

COLSEL

I

Setting terminal for the illumination color

“L”: amber, “H”: green (fixed at “L” in this set)

63

 

VSS

Ground terminal

 

 

 

 

 

64

DAVN

I

Data transmit completed detection signal input from the RDS decoder (IC51) “H” active

 

 

 

 

 

65

 

FILE

I

Setting terminal for the custom file “L”: unavailable, “H”: available (fixed at “H” in this set)

 

 

 

 

 

66

 

TEXT

I

Setting terminal for the CD text “L”: unavailable, “H”: available (fixed at “H” in this set)

 

 

 

 

 

67

NOSESW

I

Front panel block remove/attach detection signal input from the nose detection switch (SW504)

“L”: front panel is attached

 

 

 

 

 

 

 

 

 

 

 

 

68, 69

 

NCO

O

Not used (open)

 

70

I2C SIO

I/O

Two-way data I2C bus with the FM/AM tuner unit (TU1), RDS decoder (IC51) and electrical

volume (IC151)

 

 

 

 

 

 

 

 

 

 

 

71

I2C CKO

O

I2C bus clock signal output to the FM/AM tuner unit (TU1), RDS decoder (IC51) and electrical

volume (IC151)

 

 

 

 

 

 

 

 

 

 

 

 

72

 

NCO

O

Not used (open)

 

 

 

 

 

 

73

 

X1A

O

Sub system clock output terminal (32.768 kHz)

74

 

X0A

I

Sub system clock input terminal (32.768 kHz)

75

 

NCO

O

Not used (open)

 

76

KEYACK

I

Input of acknowledge signal for the key entry Acknowledge signal is input to accept function

and eject keys in the power off status On at input of “H”

 

 

 

 

 

 

 

 

 

77

 

BUIN

I

Battery detection signal input from the SONY bus interface (IC701) and battery detect circuit

 

“L” is input at low voltage

 

 

 

 

 

 

 

 

 

 

 

 

47

Image 47
Contents NEW SpecificationsDisassembly Table of Contents GeneralElectrical Adjustments DiagramsLocation of controls Section GeneralPage Page Page Page Page Mechanism Deck MG-164NZ-138 Section DisassemblySUB Panel ASS’Y Main Board Servo BoardHeat Sink MD Cover ASS’YLO Motor ASS’Y Loading M903 Float BlockHolder ASS’Y Lever LE ASS’YOptical PICK-UP KMS-241C/J1NP Chucking ARM ASS’YSL Motor ASS’Y Sled M902, SP Motor ASS’Y Spindle M901 Tuner Section Section Electrical AdjustmentsMD Section MD Play Section DiagramsSignal Path Block Diagram Tuner Section BUS Audio MW/LWBlock Diagram BUS CONTROL/POWER Supply Section Circuit Boards Location Semiconductor Location Ref. No Location IC307 Q402 Q403 MDX-C6400R/C6500R/C6500RX MDX-C6400R/C6500R/C6500RX Semiconductor Location RL+ FL+ FR+ RR+ ATT 13 5 Remamp REM ACC MDX-C6400R/C6500R/C6500RX Schematic Diagram Main Board 2/3 See page 31 for Waveforms MDX-C6400R/C6500R/C6500RX Main Board MDX-C6400R/C6500R/C6500RX Schematic Diagram SUB Board Ref. No Location D901 D902 D903 D904 D951 D952 IC901 Schematic Diagram KEY Board See page 31 for Waveform CXA2523AR IC305 BA6287F Main Board IC51 SAA6588T/V2-118 TDA7402TR IC PIN Function Description Avdd MvciAsyo AsyiSfdr FrdrFS4 SrdrWbladj XstbyVref VCCDpllsel ResetEject DfctselEJT-KEY UnireqUnisi UnisoE2P CKO BusonIllon E2P SIORCIN0 AvrhAvrl KEYIN1DIM SEL ACCRstx PW on TU1 Section Exploded ViewsGeneral Section 60 1-694-660-11 Conductive BOARD, Connection Front Panel Section54 3-041-003-01 Button LIST/ENTER DSPL. LIST. Enter Mechanism Deck MG-164NZ-138 152 A-3326-034-A Sensor BOARD, Complete 155KEY Section Electrical Parts ListRES, Chip AmberResistor Metal ChipKEY Main RD6.8ESB2 CN701 1-580-907-31 PLUG, Connector BUS ControlMylar Double LayerShort JC4 TDA7402TRJack Remote Resistor JC1 Short JC2Carbon Main Sensor Servo CXA2523AR Ferrite BeadFerrite Bead Inductor Chip CXD2652ARServo SUB Ver 1.1 Parts for Installation and ConnectionRevision History

MDX-C6500R, MDX-C6500RX specifications

The Sony MDX-C6500R and MDX-C6500RX are distinguished models in the realm of automotive audio systems, known for their innovative features and superior sound quality. Designed to enhance the driving experience, these units combine functionality with state-of-the-art technology, making them popular choices among car audio enthusiasts.

One of the standout features of the MDX-C6500R and MDX-C6500RX is their impressive sound output. Both models are equipped with a high-quality amplifier that delivers clear and powerful audio performance. The incorporation of advanced equalization options allows users to fine-tune the sound to their specific preferences, ensuring an optimal listening experience no matter the genre of music.

The connectivity options are another highlight of these models. The MDX-C6500R and MDX-C6500RX come with built-in CD players, enabling users to enjoy their favorite albums while on the road. Additionally, these units support a variety of audio formats, ensuring compatibility with a wide range of media. For those who prefer digital music, the inclusion of USB ports and auxiliary inputs allows for seamless integration of smartphones and other devices, making it easy to access personal playlists or streaming services.

User interface and functionality have not been overlooked in these models. Both the MDX-C6500R and MDX-C6500RX feature an intuitive control panel with a clear display, allowing for easy navigation through tracks and settings. The rotary volume control provides a tactile experience that enhances usability, while preset functions enable users to save their favorite stations for one-touch access.

In terms of design, both models boast a sleek and modern aesthetic that fits well with the interior of various vehicle types. They are built to withstand the rigors of daily use while maintaining a refined look, making them suitable for both casual listeners and audiophiles alike.

Moreover, these models prioritize safety and convenience. They are designed with features that minimize distractions, ensuring drivers can focus on the road while still enjoying high-quality audio. Some models may also include compatibility with steering wheel controls, further enhancing the user experience.

In summation, the Sony MDX-C6500R and MDX-C6500RX stand out as reliable and feature-rich car audio solutions. With high-quality sound performance, extensive connectivity options, and user-friendly controls, they are ideal for anyone looking to elevate their in-car audio experience. As drivers continue to seek better sound systems, these Sony models remain relevant and desirable choices.