Impact Loudspeakers C-1200, C-800 Service manual
http://www.inter-m.com
MADE IN KOREA
NO: 9007979650
SERVICE
MANUAL
P O W E R
AMPLIFIER
C-800/1200
1
Electrical Adjustment Procedure 1
Specifications
2
Electrical Parts List
3, 4
Top and Bottom View of P.C. Board
5, 6
Wiring Diagram 7
Block Diagram 8
Schematic Diagram 9, 10, 11, 12
Exploded View of Cabinet & Chassis / Mechanical Parts List
13, 14
Ass’y Drawing
15, 16
CONTENTS
IDLE CURRENT
A. Setting
Set the master volume minimum.
B. Connection
C. Adjustment
– Adjust SVR101, SVR201 so that the current through the R146, R149, R246, R249 become 10
milliampere.
– When that voltage across the Positive “TP” to Negative “TP” becomes 10 millivolt, the current
becomes 21 milliampere.
ELECTRICAL ADJUSTMENT PROCEDURE
TP1 TP2
R146
R246 R249
R149
SVR101 SVR201
AMP B D
VOLT METER
C-800 C-1200
Power Output Level
f=1kHz, THD+N≤5% (Typical)
STEREO RL=8Ω 250W+250W 350W+350W
RL=4Ω 400W+400W 600W+600W
BRIDGED RL=8Ω 800W 1200W
One Channel Driven
f=1kHz THD+N≤5% RL=8Ω 250W 350W
Frequency Response RL=8Ω, P.=1W 0dB+0.5, –1.5dB: f=15~55kHz
Power Bandwidth Half Power, THD+N≤0.1% 10Hz~40kHz
STEREO RL=8Ω
Total Harmonic Distortion (THD+N)
f=20Hz~20kHz, Half Power
STEREO RL=8Ω≤0.1%
RL=4Ω≤0.1%
BRIDGED RL=8Ω≤0.1%
Channel Separation Half Power RL=8Ω,
≥ 75dB
f=1kHz, ATT. max. Input 600Ω shunt
Residual Noise (DIN Audio Filter) ≤ –60dB: ATT min.
Signal-to-Noise Ratio DIN Audio,
≥95dB
Input 600Ω Shunt
Damping Factor RL=8Ω, f=1kHz ≥100
Slew Rate 8Ω Full Swing STEREO
±40V/µs
BRIDGED
Sensitivity (ATT max.)
Rated Power into 4Ω 1kHz
0±2dBm
Voltage Gain (ATT max.) 4Ω 1kHz 33±2dB 35±2dB
Input Impedance (ATT max.) ≥ 20kΩ (Balance/Unbalance)
Indicators Power (Red)
Protection (Mute) x 2 (Red)
Clip x 2 (Orange)
Signal x 4 (Green)
Protection Power SW ON/OFF muting
Heatsink Temp ≥ 100˚C (212˚F)
PC Limiter RL < 2Ω
Fan Circuit –50˚C (122˚F)–60˚C (140˚F)–
Low-Speed – Variable – Hi-Speed
Controls (Front) Power SW: Push up On/Push down Off
(Rear) Attenuator: Level
Mode SW: Bridged/STEREO
Low Cut SW, High Cut SW
Power Source AC 110V–240V, 50/60Hz
Power Consumption 550W 810W
Weight 13.8kg 18.4kg
Dimensions 482(W)
132(H) 369(D) mm
Connectors Input / Output: Barrier Strip
2 3
SPECIFICATIONS ELECTRICAL PARTS LIST
R140 R143 3079101275 RES ERD-2FCVG 101T 1/4W R FR 100
R169 R172
R175 R178
R240 R243
R269 R272
R275 R278
R138 - R139 3079101275
RES ERD-2FCVG 101T 1/4W R(C-1200 ONLY)
FR 100
R141 - R142 3079101275
RES ERD-2FCVG 101T 1/4W R(C-1200 ONLY)
FR 100
R238 - R239 3079101275
RES ERD-2FCVG 101T 1/4W R(C-1200 ONLY)
FR 100
R241 - R242 3079101275
RES ERD-2FCVG 101T 1/4W R(C-1200 ONLY)
FR 100
R120 - 121 3089100275 RES NFR 10 1/4W J R PHILKO FR 10
R220 - 221
R122 - 123 3089221275 RES NFR 220 1/4W J R PHILKO FR 220
R126 - 129
R222 - 223
R226 - 229
R130 - 131 3089332275 RES NFR 3.3K 1/4W J R PHILKO FR 3.3K
R230 - 231
R134 R137 3089479275 RES NFR 4.7 1/4W J R PHILKO FR 4.7
R168 R173
R174 R179
R234 R237
R268 R273
R274 R279
R132 - R133 3089479275
RES NFR 4.7 1/4W J R PHILKO(C-1200 ONLY)
FR 4.7
R135 - R136 3089479275
RES NFR 4.7 1/4W J R PHILKO(C-1200 ONLY)
FR 4.7
R232 - R233 3089479275
RES NFR 4.7 1/4W J R PHILKO(C-1200 ONLY)
FR 4.7
R235 - R236 3089479275
RES NFR 4.7 1/4W J R PHILKO(C-1200 ONLY)
FR 4.7
R114 - 115 3089820275 RES NFR 82 1/4W J R PHILKO FR 82
R214 - 215
C353 3408210261 CAP RSG 1000UF 35V SNAP 16 P 1000/35
C313 - C314 3419010345 CAP HC 10000UF 80V 10000/80
C313 - C314 3419510398
CAP AF HM 10000UF 100V 40P LUG(C-1200 ONLY)
10000/100
C316 3619474153 CAP POLY TM 0.47UF 250V 474/250V
C109 C209 3678050177 CAP M1 DM1 C 050D5 050D5
C108 C208 3678220177 CAP M1 DM 5C 220J5 220J5
C102 C202 3688471118 CAP MO SR22C 471JA 471JA
C105 C205 3698152198 CAP NPP POLY 152J 2J 0.0015M
AN106 4355755113 CON ASS
Y 4P (360MM TUBE) 4P
AN601 4355757008 CON ASS
Y 2P 2P
CN101 4428595003 LW5267/LWB0640/2.5MM-03P
CN201
CN102 4428595004 LW5267/LWB0640/2.5MM-04P
AN1 4428599003 WAFER YW025-03 YW025-03P
F352 5508412234 FUSE TS 20MM 1A/250V U/C/S T1AL/250V
RY101 5528007700 RELAY AZ971 - 1A DC24U CR323
RY201
Q104 Q111 2008206104-T TR PNP KTA 1268BL A 1268
Q204 Q211
Q102 - 103 2008206106-T TR PNP KTA2400G KEC KTA 2400G
Q202 - 203
Q105 - 106 2008606108-T TR NPN KTC2240BL (KTC 3200BL) C3200
Q110 Q126
Q205 - 206
Q352
Q210 2008606108-T TR NPN KTC2240BL (KTC 3200BL) 2SC 3200
R151 R156 3039100575-T RES MO 10 2W JR 10 2W
R251 R256
R150 R250 3039479575-T RES MO 4.7 2W J RADIAL 4.7 2W
VR101 3248347110-T RES SEMI 470 N6S25T1N IDLE 470B
VR201
C358 3409210071-T CAP AF RSG 10UF 50V 5 P 10/50
C106 - 107 3409210141-T CAP AF RSG 100UF 25V 6 P 100/25
C114 C206
C207 C359
C101 C201 3409247041-T CAP AF RSG 47UF 25V 5 P 47/25
C115 - 116 3409247131-T CAP AF RSG 470UF 16V 470/16
C354 - 357 3509472530-T CAP CE F 0.0047UF 50V Z 0.0047/50
C103 - 104 3609104122-T CAP MA 0.1UF 100V J SMALL 0.1M/100
C112 - 113 3609104122-T CAP MA 0.1UF 100V J SMALL 0.1M/100
C203 - 204 3609104122-T CAP MA 0.1UF 100V J SMALL 0.1M/100
C212 - 213 3609104122-T CAP MA 0.1UF 100V J SMALL 0.1M/100
C110 - 111 3609222120-T CAP MA 0.0022UF 100V J 0.0022M
C210 - 211 3609222120-T CAP MA 0.0022UF 100V J 0.0022M
Ref No. Part No. ValueDescriptionRef No. Part No. ValueDescription
Q107 Q207 2008005999 TR PNP 2SA 1546 NEC 2SA1546
Q109 Q209 2008405999 TR NPN 2SC 4001 NEC 2SC4001
Q115 Q215 2028107984 TR PNP 2SA 1306A(Y),KTA1659A(Y) KTA 1659A
Q121 Q123 2028117994 TR PNP 2SA 1492 W/ACC 2SA 1492
Q125 Q221
Q223 Q225
Q117 Q119 2028117994 TR PNP 2SA 1492 W/ACC(C-1200 ONLY) 2SA 1492
Q217 Q219 2028117994 TR PNP 2SA 1492 W/ACC(C-1200 ONLY) 2SA 1492
Q108 Q114 2028407990 TR NPN 2SC 3298A(Y),KTC4370A(Y) 2SC 4370
Q214
Q351 2028407990 TR NPN 2SC 3298A(Y),KTC4370A(Y) KTC 4370
Q120 Q122 2028427998 TR 2SC 3856 W/ACC 2SC 3856
Q124 Q220 2028427998 TR 2SC 3856 W/ACC 2SC 3856
Q116 Q118 2028427998 TR 2SC 3856 W/ACC(C-1200 ONLY) 2SC 3856
Q216 Q218
Q222 Q224
D7 2058100103 DIODE KBPC-2504(SB256)LUG TYPE PBU2504
D112 D113 2058100110 DIODE PS2010 PYUNG CHANG PS 2010
D212 D213
BD351 2058100987 DIODE BRIDGE (KPBP) 152 KPBP 152
D114 2058100996 DIODE RECTIFIER LT1N4006(4007) 1N 4006
D101 - D109 2058304100 DIODE IN4148 1N 4148
D201 - D209
D110 - D111 2058322100 DIODE 1SS145 ROHM ISS 142
D210 - D211
IC101 2118050410 IC TA7317P TOSHIBA TA7317P
PO101 2438007994 POSISTOR PTH 59F04 BE471TS 500
PO201
PO103 2438009992 POSISTOR P42 T70330 B04200MM 330
PO203
PO302 2438007995 POSISTOR PTH 9M04 BH 471TS 2F
L101 L201 2648099940 COIL INDUCTOR 1.2UM 1.2uH
R118 - R119 3002220953 RES CF 22K 1/5W F N 22K 1%
R218 - R219
R113 R213 3009100973 RES CF 10 1/5W J N 10
R106 R206 3009102973 RES CF 1K 1/5W J N 1K
R356
R155 R158 3009104973 RES CF 100K 1/5W J N 100K
R162 R255
R258
R355 3009122973 RES CF 1.2K 1/5W J N 1.2K
R105 R205 3009123973 RES CF 12K 1/5W J N 12K
R116 R216 3009182973 RES CF 1.8K 1/5W J N 1.8K
R154 R254 3009184973 RES CF 180K 1/5W J N 180K
R107 R207 3009221973 RES CF 220 1/5W J N 220
R152 R153 3009223973 RES CF 22K 1/5W J N 22K
R163 R164
R166 R167
R252 R253
R190 R290 3009224973 RES CF 220K 1/5W J N 220K
R101 R201 3009271973 RES CF 270 1/5W J N 270
R117 R217 3009471973 RES CF 470 1/5W J N 470
R102 R202 3009473973 RES CF 47K 1/5W J N 47K
R100 R104 3009561973 RES CF 560 1/5W J N 560
R108 R200
R204 R208
R110 - 111 3009683973 RES CF 68K 1/5W J N 68K
R112 R124
R125 R210
R211 R212
R224 R225
R103 R203 3009911973 RES CF 910 1/5W 910
R103 R203 3009751973 RES CF 750 1/5W(C-1200 ONLY) 750
R161 R165 3009822973 RES CF 8.2K 1/5W J N 8.2K
R146 R149 3049478783 RES CE 0.47 5W J T HAN NAE 0.47 5W
R170 - 171
R176 - 177
R246 R249
R270 - 271
R276 - 277
R144 - R145 3049478783
RES CE 0.47 5W J T HAN NAE(C-1200 ONLY)
0.47 5W
R147 - R148 3049478783
RES CE 0.47 5W J T HAN NAE(C-1200 ONLY)
0.47 5W
R244 - R255 3049478783
RES CE 0.47 5W J T HAN NAE(C-1200 ONLY)
0.47 5W
R247 - R248 3049478783
RES CE 0.47 5W J T HAN NAE(C-1200 ONLY)
0.47 5W
AMP B’D (4005185301)
0dB=0.775 Vrms, Half Power=1/2 Power Output Level (Rated Power)
* Using reactive 2Ω speakers at high power levels may cause overheating, excessive power consumption, and shutdowns.
Please note that below 2Ω the PC limiter will work. Before using 2Ω speakers in a real application, test the system completely.
* Specifications and design subject to change without notice for improvements.
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