Harman Kardon AVR 235, Service Manual

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PIN/FUNCTION
No. Pin Name I/O Function
IPS0 I Input Channel Select 0 Pin in Parallel Mode
1
RX4 I Receiver Channel 4 Pin in Serial Mode (Internal biased pin)
2 NC(AVSS) I
No Connect
No internal bonding. This pin should be connected to AVSS.
DIF0 I Audio Data Interface Format 0 Pin in Parallel Mode
3
RX5 I Receiver Channel 5 Pin in Serial Mode (Internal biased pin)
4 TEST2 I
TEST 2 pin
This pin should be connect to AVSS.
DIF1 I Audio Data Interface Format 1 Pin in Parallel Mode
5
RX6 I Receiver Channel 6 Pin in Serial Mode (Internal biased pin)
6 NC(AVSS) I
No Connect
No internal bonding. This pin should be connected to AVSS.
DIF2 I Audio Data Interface Format 2 Pin in Parallel Mode
7
RX7 I Receiver Channel 7 Pin in Serial Mode (Internal biased pin)
IPS1 I Input Channel Select 1 Pin in Parallel Mode
8
IIC I
IIC Select Pin in Serial Mode.
“L”: 4-wire Serial, “H”: IIC
9 P/SN I
Parallel/Serial Select Pin
“L”: Serial Mode, “H”: Parallel Mode
10 XTL0 I X’tal Frequency Select 0 Pin
11 XTL1 I X’tal Frequency Select 1 Pin
12 VIN I V-bit Input Pin for Transmitter Output
13 TVDD I Input Buffer Power Supply Pin, 3.3V or 5V
14 NC I
No Connect
No internal bonding. This pin should be open or connected to DVSS.
15 TX0 O Transmit Channel (Through Data) Output 0 Pin
16 TX1 O
When TX bit = “0”, Transmit Channel (Through Data) Output 1 Pin.
When TX bit = “1”, Transmit Channel (DAUX Data) Output Pin (Default).
17 BOUT O
Block-Start Output Pin for Receiver Input
“H” during first 40 flames.
18 COUT O C-bit Output Pin for Receiver Input
19 UOUT O U-bit Output Pin for Receiver Input
20 VOUT O V-bit Output Pin for Receiver Input
21 DVDD I Digital Power Supply Pin, 3.3V
22 DVSS I Digital Ground Pin
23 MCKO1 O Master Clock Output 1 Pin
24 LRCK I/O Channel Clock Pin
25 SDTO O Audio Serial Data Output Pin
26 BICK I/O Audio Serial Data Clock Pin
27 MCKO2 O Master Clock Output 2 Pin
28 DAUX I Auxiliary Audio Data Input Pin
29 XTO O X'tal Output Pin
30 XTI I X'tal Input Pin
AVR235 harman/kardon
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