Sony HCD-D90AV, Руководство по обслуживанию

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• IC601 DISPLAY CONTROL ( TMP87CH75F-6543)
Pin No.
Pin Name I/O Function
1 SEG35 O FL segment signal output
2 VLOAD – Power supply (–25V) for FL segment signal output
3 to 10 LED1 to LED8 O LED driver output
11 VSS – Ground
12 X-OUT O
13 X-IN I
14 RESET I Reset signal input from main controller
15 LED9 O LED driver output (Not used)
16 LED10 O LED driver output
17 TEST I Connected ground
18 to 22 LED11 to LED15 O LED driver output
23 LED16 O LED driver output (Not used)
24 VOL-A I Rotary encoder (S701) pulse input
25 LED17 O LED driver output
26 JOG-A I Rotaly encoder (S711) pulse input
27 CLOCK I Serial clock input from main controller
28 DATA I Serial data input from main controller
29 LED SELECT O LED select signal output
30 VDD – Power supply (+5V)
31 VSS – Ground
32 MODEL I Version select signal input
33 to 37 KEY1 to KEY5 I Key input
38 EWS STANDBY I Not used
39 SIRCS I Remote commander signal input
40 VOL-B I Rotary encoder (S701) pulse input
41 JOG-B I Rotary encoder (S711) pulse input
42 SPEANA-1 I Spectrum analyzer input
43 SPEANA-2 I Spectrum analyzer input
44 SPEANA-3 I Spectrum analyzer input
45 SPEANA-4 I Spectrum analyzer input
46 L + R I Spectrum analyzer (high frequency) input
47 EWS SIGNAL/LED18 O Not used
48 VASS – Ground
49 VAREF I Analog reference voltage input
50 VDD – Power supply (+5V)
51 to 56 GR1 to GR16 O FL gride signal output
67 to 100 SEG1 to SEG34 O FL segment signal output
X’tall (8MHz)
FL : Fluorescent indicator tube