Williams Sound Defender 16P-3001-103 R-T 用户手册

CMOS RAM DIAGNOSTICS – TEST 3 
 
From RAM Diagnostics depress ADVANCE in AUTO-UP. 
 

RESULT 

CRT 

INDICATION 

LED INDICATION 

FAULTY AREA 

PASS 

CMOS RAM TEST 

PASSED 

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3

rd

 LED blinks 

twice. 

- 

FAIL 

CMOS RAM 

FAILURE 

 

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3

rd

 LED lights.

 

CMOS RAM 1E memory 
protect gates 4J, 6H, or 
address decoder 4K, 5P. 

 

CMOS 

INTERLOCK 

FAILURE 

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3

rd

 LED lights.

 

Coin door interlock, 
Memory protect gates 5B, 
6H,4J, OR CMOS RAM 1E 

 
 
COLOUR RAM TEST – TEST 4 

 
From CMOS RAM test depress ADVANCE in AUTO-UP. 
 

FAULT 

COLOUR 

SEQUENCES 

RAM 2C 

RAM 1C 

1 LIGHT RED 
2 RED 
3 DARK RED 

Band of red 
intensity variance 
or washout 

Band of magenta 

4 LIGHT GREEN 
5 GREEN 
6 DARK GREEN 

Band of yellow 

Band of cyan 

7 LIGHT BLUE 
8 BLUE 
9 DARK BLUE 

Band of magenta 

Band of blue 
intensity variance 
or washout 

4 LIGHT GREEN 

Band of green 

Band of dark  green 
or washout 

5 GREEN 

Band of light green 

Band of faint 
green, Band of 
darker green 

6 DARK GREEN 

 

Band of washout 

CRT SEQUENCES THROUGH 8 
COLOURS, 2 SECONDS EACH 

 
 
 
 
 
 
 
 
 
 
VERTICAL BAND INDICATES 
COLOUR RAM FAULT. 
 

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4

TH

 LED REMAINS LIT 

DURING TEST 

Note that a blank sequence or two sequences with same 
shade indicate 2C or 1C RAM or color analogue circuit 
faulty. 

 

Tests 5 and 7 provide sequential subtests. To stop automatic cycling set switch to 
MANUAL/DOWN. Depress ADVANCE in MANUAL-DOWN to step through subtests. 

 
 
SOUND TEST – TEST 5 
 
From Color RAM test, depress ADVANCE in AUTO-UP. 
 
Test sequences sounds 1 through 31, skipping 19, 27, and 28.  
 

Missing 

     Check 

1 

2P4/10P3 Pin 3 

2 

2P4/lOP3 Pin 2 

4 

2P4/10P3 Pin 5 

8 

2P4/10P3 Pin 4 

16 

2P4/10P3 Pin 7 

All 

Perform Sound Board Diagnostics