Aiwa XR-EM70 Wartungshandbuch PDF herunterladen (Seite 28)

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40 O-RCH O Rch output.

41 RVDD  Rch power supply.

42 MUTE-R O Rch muting output. (Not used)

43 XVDD  Power supply of crystal oscillator.

44 XOUT O

For the connection of a 16.934MHz crystal oscillator.

45 XIN I

46 XVSS  Ground of crystal oscillator. Normally 0V.

47 SBSY O Subcode block sync signal output. (Not used)

48 EFLG O C1, C2, single, duplex correction monitor. (Not used)

49 PW O Output of subcodes P, Q, R, S, T, U and W. (Not used)

50 SFSY O Subcode frame sync signal output. Falls when the subcode is set to the standby state. (No used)

51 SBCK I

Subcode read-out clock input. Schmitt trigger input. ("L" is applied when not used.)

(Connected to 0V)

52 FSX O 7.35kHz sync signal output obtained by dividing the oscillator frequency. (Not used)

53 WRQ O Subcode Q standby output.

54 RWC I Read/write control input. Schmitt trigger input.

55 SQOUT O Subcode Q output.

56 COIN I Command input from the microprocessor.

57 CQCK I

Command input retrieval clock or subcode retrieval clock input from SQOUT. Schmitt trigger

input.

58 RES I LC78622NE reset input.

59 T11 O Test output. Set to open (normally "L" output.) (Not used)

60 16M O 16.9344MHz output. (Not used)

61 4.2M O 4.236MHz output.

62 T5 I Test input. A pull-down resistor is incorporated. (Connected to 0V)

63 CS I Chip select input. (Connected to 0V)

64 T1 I Test input with no pull-down resistor. (Connected to 0V)

I/O Description

Pin No.

Pin Name

1 2 ... 23 24 25 26 27 28 29 30 31 32 33 ... 51 52

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Aiwa XR-EM70 Wartungshandbuch Seite 28