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-rw-r--r--src/mame/drivers/pokerout.cpp21
1 files changed, 12 insertions, 9 deletions
diff --git a/src/mame/drivers/pokerout.cpp b/src/mame/drivers/pokerout.cpp
index 62987ef60e0..40cc538a880 100644
--- a/src/mame/drivers/pokerout.cpp
+++ b/src/mame/drivers/pokerout.cpp
@@ -17,6 +17,7 @@
1x AY-3-8910.
1x TI TMS9129NL (Video Display Processor).
1x Altera EP310-DC (EPLD).
+ 1x TBA820 (2 Watt Audio Amplifier).
2x 27128 EPROMS.
@@ -32,12 +33,13 @@
The following components made me suspect that there is some sort of
TX-RX circuitry to connect with an external device for unknown purposes.
+ Maybe a kind of device to trigger remote credits...
- 1x TBA820 ; 2 Watt Audio Amplifier.
1x HEF4528BP ; Dual Monostable Multivibrator 3/15V.
1x MM53200N ; Encoder/Decoder. Digital Code Transmitter-Receiver System.
1x L200C ; 2.8 -> 36V. Voltage Regulator.
1x SN94501N ; Unknown... No Data.
+ 1x BC237B ; NPN transistor.
PCB layer:
@@ -47,18 +49,18 @@
| .----------. |
| |DM74LS139N| |
| '----------' .-------------. .---------. .---------. .---------. .----------. .----------. |
- | | Z8430AB1 | |SN74LS32N| |SN74LS00N| | 74LS02? | |SN74LS74AN| | 74LS0?? | |
+ | | Z8430AB1 | |SN74LS32N| |SN74LS00N| | 74LS02 | |SN74LS74AN| | 74LS08 | |
| | Z80ACTC | '---------' '---------' '---------' '----------' '----------' |
| .----------. '-------------' |
| |SN74LS74AN| |
| '----------' .----. |
| |DIP | .----'
| .---------. .-------------------. .---------------------. |SWIT| |
- | | ??? | | Z8400AB1 | | AY-3-8910 | |CHES| |
+ | | 74LS175 | | Z8400AB1 | | AY-3-8910 | |CHES| |
| '---------' | Z80ACPU | | PSG | | #1 | '----.
| '-------------------' '---------------------' '----' .------------. ====|
| .---------. | T74LS244B1 | 2 ====|
- | | ??? | '------------' x ====|
+ | | 74LS273 | '------------' x ====|
| '---------' 2 ====|
| 2 ====|
| .---------. ====|
@@ -86,11 +88,11 @@
| '----------' |
| |
| |
- | .---------. .-------. |
+ | .---------. .--|||--. |
| .---------. | TBA820 | | L200C | |
- | |HEF4528BP| '---------' .--+-------+--. |
- | '---------' | HEATSINK | |
- | '-------------' |
+ | |HEF4528BP| .------. '---------' .--+-------+--. |
+ | '---------' |BC237B| | HEATSINK | |
+ | '-|||--' '-------------' |
| 5981-A |
'----------------------------------------------------------------------------------------------------------'
@@ -176,7 +178,8 @@
TODO:
- Trace/analysis of inputs out of test mode, but used by the code
- (Port 90h D0-D3).
+ (Port 90h D0-D3)
+ - Identify the writes to ports 80h, 90h & A0h.
*******************************************************************************/