BOSS PH 2 SERVICE NOTES
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Page 2
ADJ USTMENT AND CHECKING
1. Feed the test signal to INPUT of the PH-2. NOTE: The indicator fails to light when the DC is
2. Connect the scope to OUTPUT of the PH-2. below 6V.
3. Push Pedal once if the LED is unlit (EFFECT OFF). The amplitudes in the table are taken with
accurate 9V source and will vary as the vol-
tage fluctuates.
CHECK INPUT SET CONTROLS WAVEFORM 81 REMARK
FILTER m 50mV/div;0.5ms/div.
m M mo m [min l"T_l
YE -
gm (9 ® 0 G e - MW
m p-p ' ' ' ' ' ' BoardforT=1ms.
NOTE: DEPTH remains slightly effective even at FCCW
position; the waves will jitter.
LFO an
O m
m can! Ill
The waveform will vary
* between the extremes
shown in photos, re-
spectively.
m Sweep rate should be
m m0 a 1"?! 14s with RATE at
" FCCW and 100ms at
® ® ® 0 Few.
RESONANCE m
0 fl
MODEI 65 5 . '
°8" m
MODEI] m m 1!
RESONANCE m
0 non:
nun not" a 1.!
MODEl] ' Q © 0 ®