Sharp DM-1500, Руководство по обслуживанию

Страница: 109 / 188

PIN
No.
Pin name Signal name IN/OUT Destination Function
47 SYSAD51 SYSAD51 IN/OUT CPU, 74LVC244 System address data bus
48 V
CC
3.3V IN Power source
49 GND GND IN GND
50 SYSAD52 SYSAD52 IN/OUT CPU, 74LVC244 System address data bus
51 SYSAD53 SYSAD53 IN/OUT CPU, 74LVC244 System address data bus
52 SYSAD54 SYSAD54 IN/OUT CPU System address data bus
53 SYSAD55 SYSAD55 IN/OUT CPU System address data bus
54 SYSAD56 SYSAD56 IN/OUT CPU System address data bus
55 SYSAD57 SYSAD57 IN/OUT CPU System address data bus
56 SYSAD58 SYSAD58 IN/OUT CPU System address data bus
57 SYSAD59 SYSAD59 IN/OUT CPU System address data bus
58 V
CC
3.3V IN Power source
59 GND GND IN GND
60 SYSAD60 SYSAD60 IN/OUT CPU System address data bus
61 SYSAD61 SYSAD61 IN/OUT CPU System address data bus
62 SYSAD62 SYSAD62 IN/OUT CPU System address data bus
63 SYSAD63 SYSAD63 IN/OUT CPU System address data bus
64 V
CC
3.3V IN Power source
65 GND GND IN GND
66 MASTERCLK MASTERCLK IN PLL IC(CY2292) Master clock
67 TESTMODE IN Test pin (3.3V)
68 DC2_TEST IN Test pin (GND)
69 SCAN_TEST IN Test pin (GND)
70 SCAN_EN IN Scan enable (GND)
71 PLL_EN RESET_ IN 74LS244 PLL enable
72 PLL_TEST IN Test pin (GND)
73 GND GND IN GND
74 V
CC
3.3V IN Power source
75 V
CC
3.3V IN Power source
76 CPOUT OUT Charge pump output
77 PLLGND GND IN PLL GND
78 PLLVDD 3.3V IN PLL power
79 VCOIN IN Loop filter input
80 GND GND IN GND
81 SYSCMD8 SYSCMD8 IN/OUT CPU System command data bus
82 SYSCMD7 SYSCMD7 IN/OUT CPU System command data bus
83 SYSCMD6 SYSCMD6 IN/OUT CPU System command data bus
84 SYSCMD5 SYSCMD5 IN/OUT CPU System command data bus
85 SYSCMD4 SYSCMD4 IN/OUT CPU System command data bus
86 SYSCMD3 SYSCMD3 IN/OUT CPU System command data bus
87 SYSCMD2 SYSCMD2 IN/OUT CPU System command data bus
88 SYSCMD1 SYSCMD1 IN/OUT CPU System command data bus
89 V
CC
3.3V IN Power source
90 GND GND IN GND
91 SYSCMD0 SYSCMD0 IN/OUT CPU System command data bus
92 /DACK3 N.C NC
93 /DACK2 N.C NC
DM-1505
11 – 20