Kenwood VR-505 Service Manual page 7

4. AK4112AVF u-com interface port
Pin Name Pin No. I/O
PD 7 I
AUTO 5 O
FS96 17 O
ERF 18 O
CSN 25 I
CCLK 26 I
CDTI 27 I
CDTO 28 O
5. AK4527B u-com interface port
Pin Name Pin No. I/O
PDN 17 I
OVF 33 O
CSN 41 I
CCLK 42 I
CDTI 43 I
6. Test Mode
6-1 Entering the Test Mode
• While pressing the "BAND" key, plug the power cord into AC wall outlet.
6-2 Cancelling the Test Mode
• Initialized and cancel the test mode if pulling out the power code.
6-3 Contents of the Test Mode
6-3-1 Pch CALL UP/DOWN
Key
Pch CALL UP
DIMMER 01 02 03
Pch CALL DOWN
INPUT MODE
01 02 03
6-3-2 10 Steps Switching of P ch Call
Key
SET UP
6-3-3 TUNER mute on/off
Key
LISTEN MODE
6-3-4 Key Operation
• The following operation is available during the all FL lighting up mode only.(only VR-507/509/510)
Operation Keys Display
SOUND Normal Indication RF receiving frequency is made 422MHz for VR-509/510 and 418MHz for VR-507.
LISTEN MODE FRONT IR
SOURCE DIRECT RF BAND 2
CIRCUIT DESCRIPTION
Power Down Mode Pin When "L", the AK4112AVF is power down and reset.
Non PCM Detect Pin "L":No detect, "H":Detect
96kHz Sampling Detect Pin "H":fs=88.2kHz or more, "L":fs=54kHz or less.
Unlock & Parity Error Output Pin "L":No Error, "H":Error
Chip Select pin in Serial Mode
Control Data Clock Pin in Serial Mode
Control Data Input Pin in Serial Mode
Control Data Output Pin in Serial
Function
Power Down & Reset Pin
Analog Overflow Detect Pin
Chip Select Pin
Control Data Clock Pin
Control Data Input Pin
Function
... ...
39 40
... ...
39 40
Function
Preset Operation
Function
TUNER mute on/off
FRONT IR is enabled and remote control is disabled.
RF receiving frequency is made 428MHz for VR-509/510.
VR-505/506/507/509/510/517
Function
Function
7