20
15” TFT TV Service Manual
Signal
Pin
Type
Function
DOB4
109
I/O
SR5
DOB5
108
I/O
SR5
DOB6
100
I/O
SR5
DOB7
99
I/O
SR5
WR
195 I/O D5 Write Enable. Low indicates a write to external RAM or other devices.
RD
196 I/O D5 Read Enable. Low indicates a read to external RAM or other devices.
ROMOE
197
OS ROM Output Enable. Low output indicates a read from external ROM.
ROMWE
198
OS ROM Write Enable. Low indicates a write to external ROM.
CS0
199 I/O D5 Miscellaneous Chip Select 0. Low selects external devices.
CS1
200 I/O D5
Miscellaneous Chip Select 1. When EXTRAMEN=0, low selects external devices.
Chip select for external RAM. When EXTRAMEN=1, low selects external RAM.
(RAMCS)
NMI
194
ID 5 Non-Maskable Interrupt. A high input triggers a non-maskable interrupt to the on-chip
microprocessor.
A1
193
I/O
D5
A2
192
I/O
D5
A3
191
I/O
D5
A4
190
I/O
D5
A5
189
I/O
D5
A6
188
I/O
D5
A7
183
I/O
D5
A8
182
I/O
D5
A9
181
I/O
D5
A10
180
I/O
D5
A11
179
I/O
D5
A12
178
I/O
D5
A13
177
I/O
D5
A14
176
I/O
D5
Microprocessor address bus output bits (19:1).
Содержание 15LD2200
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Страница 52: ...50 15 TFT TV Service Manual 7 2 Keypad Schematics 17TKXX ...
Страница 53: ...51 15 TFT TV Service Manual 7 3 IR LED Board Schematics 17LDXX ...
Страница 54: ...52 15 TFT TV Service Manual 7 4 Remote Controller Schematics 11UK10 2 ...
Страница 55: ...QTY DESCRIPTION NO ...
Страница 57: ...THE UPDATED PARTS LIST FOR THIS MODEL IS AVAILABLE ON ESTA ...