BOSS PH 1R SERVICE NOTES

Page 2

[DH-1R DEC. 26,1980

, ADJUSTMENT and CHECKING
ET5213-510A (7521351001)

(pcb 2291031300)

©©©©©©©©©©© 6)

USE EXACT 9V SUPPLY

V @ TRIG,
© © © © © © n 3 = 3 ° 931%
:3 K I! K E OSCILLOSCOPE GENERATOR
- DIRDIIEB; @b O .0 Time base
a -CID- R-z-e cx zoom
0 a who
0 \J Yu :3
E F! F. a USTMENT
3 * "- 1.BIAS ADJ
N t: g RJLQ
Q §>aR-)@;) - RJI u,
9&1 ---O Rs lg) ~.-
0 0' n7 Test Signal
3 @ :10 Vfl-j 956 mu, sine VZOdBm
" GD q ® 3 an: m
D 0V
D1 Rom : [SJ :2 1% F. 3 a
5 - _ w
'3 3, Test slgnal can be shifted to w1thln the range
'- ° 900-llOOHz to meet the specification.
o-«__o £9 Adjust V34 for A:A' or C:C'. Bzmore than 0.15ms.
RAE m , 3 8 Turn DEPTH few. The same spec for 850-l150Hz.
G . . m _
I J) R g ii6) m3

2. WAVEFORM CHECKING

Q
(E
GJLL
a;
GR!
<[

U , , 9 9 new,

, , , 200Hz.square,BDmVpp NORMAL

N . ME '

® CE: 9 , ~ Scope Tune Base
lms

R53 R
5-39 4:9 m
, to , -e --°-o -°e

a:
°-°' O
-Q 1- R22 9: Roman ©-

0 an , EFFECT
*9:. H Id ICC) W I

Waveform Changing Time: approx. 165,

enigma!

ZSKZOAGRS for 02-05 are a set of factory selected ones; graded based on Pinch-Off, and dotted in
a color of the standard Code- Whey-replacing, use _the one of the sam_e_ color or the closest.

RES
VRJ IUKB
ma R16 i
IDK IOK
m
10K 1, I: .+ 5 OUTPUT
7 H cu V
'IIC3 cm . I I
cs 01 . mu: 25°
or _ .o|y_ m
, o-me -
(:3 Max 0L 330K 35
WK (3%}
RIS R14
330K 330K

NORMAL
Rn /
of 6 EFFECT
m n I
S/N 0300-
___ - I (a
5 ® _ : 1c 1-3: uPC45580 Q 1: 250732TM-GR D 1: RDllEB3
g : Q 2-5: 2SK30A-GR selected
< 1c 4: TLOZZCP Q 5: ZSK30A-Y D 2,5: mama;
HOSHIDEN 8' 230 -P D 4-6: 152
EEC-0003 HEc-o317-1-1 Q7 945 473