38
3. Sequence Testing
User Sequences
0 For remote use only − this sequence can only be accessed by a remote computer
1-10 User sequences, initially set to be the same as sequences 11-20. These sequences can be edited by the
user or overwritten by copying other sequences over them (either individually, or as a whole bank).
Lindos Default Sequences
11 "GENERAL/TAPE TEST" TRCINZ General purpose test sequence
12 "LINES/LINKS TEST" TOCENZ Test for communications lines and links
13 "CASSETTE/CARTRIDGE" TPCINWZ Cassette and cartridge test with W&F
14 "SPEAKER/GENERAL" TUD Loudspeaker frequency response and distortion
15 "20-20kHz FAST SWEEP" TX<
16 "LINDOS SELF TEST" /0%10,0 LA100 Self Test − see section 10.6 of manual
"XLR SOCKETS ONLY/0dB"TUCDN±6
17 "FM TEST""ONE CHAN MTD FOR THD"VRA:19,0GNY FM transmitter test. Dist. measured on mono tone
18 "GERMAN SEQ" T+6U-14C+6D+6NZ-4 German line-up levels
19 "PPM TEST" A test for Peak Programme Meters
"100ms PPM6 +8dB"!5000,100,8,0,5000 Should read PPM 6
"10ms PPM5.5 +6dB"!5000,10,8,0,5000 Should read PPM 5½
"5ms PPM5 +4dB"!5000,5,8,0,5000 Should read PPM 5
"1.5ms PPM3.75 -1dB"!5000,1.5,8,0,5000 Should read PPM 3¾
"0.5ms PPM1.75 -9dB"!10000,0.5,8,0,5000 Should read PPM 1¾
"TONES PPM7-1"!1000,4000,12,,,8,,,4,,,0,,,-4,,,-8,,,-12 Levels PPM 7 to PPM 1
20 "5S SWEEP (REPEAT)" TU<
Tape Test Sequences
21 "FULL TAPE TEST" TRCINWZ As sequence 11, but with W&F
22 "MULTI-SWEEP" *3 TU0U-10U-20 Frequency response at 0dB, -10dB and -20dB
23 "CASSETTE/CARTRIDGE" TPCINWZ General cassette/cartridge test
24 "W+F ONLY" TW W&F test (including gain, speed and phase)
25 "20-20kHz FAST SWEEP" TX< Fast repeating sweep
26 "NOISE+DIST" TIN Simple noise and distortion test
Mono Loudspeaker Test Sequences
31 "SLOW SWEEP-10 DIST":3,1TS-10F0 Slow frequency sweep at -10dB, distortion at 0dB
32 "SLOW SWEEP 0 DIST":3,1TS0F0 Slow frequency sweep at 0dB, distortion at 0dB
33
34 "SWEEP+DIST":3,1TUD Sweep at 0dB, distortion at +8dB
35 "SWEEP+DIST ON R" Connect LA100 as in fig. 3.16 (Manual, page 51)
"SPEAKER ON R CHANNEL":3,2TUD L channel carries FSK, measurements made on R
Filter Test Sequences
41 "RIAA INVERSE" "WEIGHTED SWEEP -40dB" Inverse weighted frequency sweep at -40dB for
:3,1 =6 TU-40 RIAA disc equalisation filter. Result should be flat.
42 "CCIR468 INVERSE" "WEIGHTED SWEEP -40dB" Inverse weighted frequency sweep at -40dB for
:3,1 =7 TU-40 CCIR noise filter. Result should be flat.
To test the LA102, press:
and then run sequence 42
Meter Tests (Tone Bursts)
51 "FLUTTER METER 1%" This should produce a 1% W&F reading on a
!3125,600,0,3188,,,3188,0< flutter meter.
52 "CCIR468-4 WTD METER" CCIR486 noise meter test.
"6300Hz -40dB REF" !6300,5000,-52.2 6.3kHz, -40dB reference (set meter to read -40dB)
"100Hz -40±1dB" !100,4000,-20.2 Response test, meter should read -40dB±1dB
" 1kHz -40±0.2dB" !1000,4000,-40 Response test, meter should read -40dB±0.2dB
" 8kHz -40±0.4dB" !8000,4000,-51.4 Response test, meter should read -40dB±0.4dB
"10kHz -40±0.8dB" !10000,4000,-48.1 Response test, meter should read -40dB±0.8dB
"16kHz -40±1.6dB" !16000,4000,-28.3 Response test, meter should read -40dB±1.6dB
53 "A WTD METER" ‘A’ weighted meter test.
"1000Hz -40dB REF" !1000,4000,-40 1kHz, -40dB reference (set meter to read -40dB)
" 100Hz -40±0.5dB" !100,4000,-20.9 Response test, meter should read -40±0.5dB
"2500Hz -40±0.5dB" !2500,4000,-41.3 Response test, meter should read -40±0.5dB
" 10kHz -40±0.5dB"!10000,4000,-37.5 Response test, meter should read -40±0.5dB
Table 3.1 Sequence Definitions
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