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+100V
+100V
R214 1N4935
D207
100 D221
+15V
FR602 C230 R280
C217 R279 1K 100N/160V C229 33K 1/2W
C201 R212 R213 R230 R231 R232 R233 200pF/160V
47uF/160V p
10uF/50V 1K 100 p 51 51 51 51 R278 51
C202
47N C228 D220
R277 390pF/100V
-15V D 1N4935
-15V Q214 51
G
C216 2N5401
R208 470pF/300V S R275
C203 Q210 Q211 Q212 Q213 R276 V+ SW
10K D? 270K
10uF/50V IRFP250 IRFP250 IRFP250 IRFP250 10K
C204 15V p D218
47N Q201 Q202 D219 FR602
-15V
2N5551 JE350 1N4935 +65V
Q209 +65V
R215 2SC4793 D217
C207 4.7 1/2W R274 FR602
Q217 Q218 Q219 Q220
R204 1N Q215 Q216 18K
1K R229 2SC5200 2SC5200 2SC5200 2SC5200 2SC5200 R272
2SC5200 27K 1/2W
2K2 D216
C209 D206 p ZD207 FR602
D201
ZD201 ZD202 1N 1N4148 9.1V 1/2W
1N4148
C215 R234 R235 R236 R237 D208
R205 R228 R238 R239 C225
10N 300V 10 10 10 10 1N4004
3.9K 1.5K 10 10 0.001uF C227
7V5 7V5 Q208
-15V R271 100N/100V
R216 BC550 R227 4.7K p
1K 3K
R203 IC201A D205 ZD205
4 1N4004
1K MC34081 6.8V D215
Q203 R273
2 C226 1N5404
6 JE802 ZD204 30K
LD_P1 100uF/16V
LD_P1
3 6.8V R241 R242 R243 R244 R245 R246
5W 0.22 5W 0.22 5W 0.22 5W 0.22 5W 0.22 5W 0.22 Q221
R217 JE340
7 1K p R240
+15V R209 C210 R226 100 1/2W C218 R270
C206 68K 10uF/50V 30K 0.0056uF 15K
33pF
SP_OUT
R225
R202 PIII2000
30K R247
USE 75K RES. p
R202 SVR201 p 100 1/2W
100K 220 D209
ZD203 R269 1N4935
6.8V R248 R249 R250 R251 R252 R253 33K 1/2W
5W 0.22 5W 0.22 5W 0.22 5W 0.22 5W 0.22 5W 0.22
R201 ZD206
4K99 1% OP_O1 D204
OP_O1 1N4004 5.6V 1/2W
Q207 R268 C220
P_IN1 R207 R210 BC560 100pF
P_IN1 R224 33K D214
10 68K
C205 1N5404
R206 2.2K
10uF/25V NP R254 R255 R256 R257 R258
3.9K R223 R259
10 10 10 10 10 C219 Q233
10 2N5401
1.8K 100uF/16V C221
D202 C214 R267 100pF D213
10N 300V 10K FR602
1N4148
OP_OUT1 R222
OP_OUT1 Q205 Q227 R266
2K2 Q222 Q223 Q224 Q225 Q226 2SA1943 C222
Q204 330 3pF D212
2SA1943 2SA1943 2SA1943 2SA1943 2SA1943
2N5401 JE340 FR602
C231 0.1uF R218 Q206 -65V
R211 -65V
4.7 1/2W 2SA1837 Q228 Q229 Q230 Q231
10K IRFP250 IRFP250 IRFP250 IRFP250 D210 1N4935 D211
R281 10 2W D203
1N4148 D FR602
+15V C213 G
p +15V D222
470pF/300V
FR602 S R264
R219 R220 C224
51
1K 100 R262 D? 100N/100V
R260 R261 R263 p
51 15V R265
51 51 51 Q232
10K
R221 2N5401
100
-100V
-100V
C223
C212 100N/160V
47uF/160V
p
p
PIII2000: D212/D217
Q210/Q216/Q218
CN9A CN9B Q223/Q225/Q228
+100V CN7A PIII 2000: +100V
9 9 CN7B
-100V P_IN2 R223 USE 3K -100V No Use
8 1 8
PGND AGND R225 USE 24K PGND P_IN1
7 2 7 1
+60V OP_OUT R226 USE 24K +60V AGND
6 3 6 2
-60V AGND R270 USE 6.8K -60V OP_OUT
5 4 5 3
PGND +15V R228 USE 2.2K PGND AGND
4 5 4 4
VAC -15V VAC +15V
3 6 3 5
V+ V+ -15V
2 2 6
SP_R HEADER 6 SP_L
1 1
HEADER 6
HEADER 9 HEADER 9 PHONIC CORPORATION
Title
PIII POWER AMP.
AMP_R SAME AS AMP_L Size Document Number REV
B PIII_AMP.SCH A
Date: November 1, 2001 Sheet 4 of 5