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SERVICE MANUAL
P O W E R
AMPLIFIER
C-800/1200
http://www.inter-m.com
MADE IN KOREA
NO: 9007979650
ELECTRICAL ADJUSTMENT PROCEDURE
IDLE CURRENT
A. Setting Set the master volume minimum. B. Connection
TP1
R146 R246 R149 R249
TP2
VOLT METER
SVR101 AMP B D
SVR201
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.
CONTENTS
Electrical Adjustment Procedure Specifications Electrical Parts List Top and Bottom View of P.C. Board Wiring Diagram Block Diagram Schematic Diagram Exploded View of Cabinet & Chassis / Mechanical Parts List Ass'y Drawing 1 2 3, 4 5, 6 7 8 9, 10, 11, 12 13, 14 15, 16
1
SPECIFICATIONS
C-800
Power Output Level f=1kHz, THD+N5% (Typical) STEREO RL=8 RL=4 BRIDGED RL=8 One Channel Driven f=1kHz THD+N5% RL=8 Frequency Response RL=8, P.=1W Power Bandwidth Half Power, THD+N0.1% STEREO RL=8 Total Harmonic Distortion (THD+N) f=20Hz~20kHz, Half Power STEREO RL=8 RL=4 BRIDGED RL=8 Channel Separation Half Power RL=8, f=1kHz, ATT. max. Input 600 shunt Residual Noise (DIN Audio Filter) Signal-to-Noise Ratio DIN Audio, Input 600 Shunt Damping Factor RL=8, f=1kHz Slew Rate 8 Full Swing STEREO BRIDGED Sensitivity (ATT max.) Rated Power into 4 1kHz Voltage Gain (ATT max.) 4 1kHz Input Impedance (ATT max.) Indicators 250W+250W 400W+400W 800W
ELECTRICAL PARTS LIST
C-1200
350W+350W 600W+600W 1200W
Ref No. Part No. Description Value Ref No.
R140 R143 R169 R172 R175 R178 R240 R243 R269 R272 R275 R278 R138 - R139 R141 - R142 R238 - R239 R241 - R242 R120 - 121 R220 - 221 R122 - 123 R126 - 129 R222 - 223 R226 - 229 R130 - 131 R230 - 231 R134 R137 R168 R173 R174 R179 R234 R237 R268 R273 R274 R279 R132 - R133 R135 - R136 R232 - R233 R235 - R236 R114 - 115 R214 - 215 C353 C313 - C314 C313 - C314 C316 C109 C209 C108 C208 C102 C202 C105 C205 AN106 AN601 CN101 CN201 CN102 AN1 F352 RY101 RY201 Q104 Q111 Q204 Q211 Q102 - 103 Q202 - 203 Q105 - 106 Q110 Q126 Q205 - 206 Q352 Q210 R151 R156 R251 R256 R150 R250 VR101 VR201 C358 C106 - 107 C114 C206 C207 C359 C101 C201 C115 - 116 C354 - 357 C103 - 104 C112 - 113 C203 - 204 C212 - 213 C110 - 111 C210 - 211
Part No.
3079101275
Description
RES ERD-2FCVG 101T 1/4W R
Value
FR 100
AMP B'D (4005185301)
Q107 Q207 Q109 Q209 Q115 Q215 Q121 Q123 Q125 Q221 Q223 Q225 Q117 Q119 Q217 Q219 Q108 Q114 Q214 Q351 Q120 Q122 Q124 Q220 Q116 Q118 Q216 Q218 Q222 Q224 D7 D112 D113 D212 D213 BD351 D114 D101 - D109 D201 - D209 D110 - D111 D210 - D211 IC101 PO101 PO201 PO103 PO203 PO302 L101 L201 R118 - R119 R218 - R219 R113 R213 R106 R206 R356 R155 R158 R162 R255 R258 R355 R105 R205 R116 R216 R154 R254 R107 R207 R152 R153 R163 R164 R166 R167 R252 R253 R190 R290 R101 R201 R117 R217 R102 R202 R100 R104 R108 R200 R204 R208 R110 - 111 R112 R124 R125 R210 R211 R212 R224 R225 R103 R203 R103 R203 R161 R165 R146 R149 R170 - 171 R176 - 177 R246 R249 R270 - 271 R276 - 277 R144 - R145 R147 - R148 R244 - R255 R247 - R248 2008005999 2008405999 2028107984 2028117994 TR PNP 2SA 1546 NEC TR NPN 2SC 4001 NEC TR PNP 2SA 1306A(Y),KTA1659A(Y) TR PNP 2SA 1492 W/ACC 2SA1546 2SC4001 KTA 1659A 2SA 1492
250W 350W 0dB+0.5, 1.5dB: f=15~55kHz 10Hz~40kHz
2028117994 2028117994 2028407990 2028407990 2028427998 2028427998 2028427998
TR PNP 2SA 1492 W/ACC(C-1200 ONLY) 2SA 1492 TR PNP 2SA 1492 W/ACC(C-1200 ONLY) 2SA 1492 TR NPN 2SC 3298A(Y),KTC4370A(Y) 2SC 4370 TR NPN 2SC 3298A(Y),KTC4370A(Y) TR 2SC 3856 W/ACC TR 2SC 3856 W/ACC TR 2SC 3856 W/ACC(C-1200 ONLY) KTC 4370 2SC 3856 2SC 3856 2SC 3856
3079101275 3079101275 3079101275 3079101275 3089100275 3089221275
RES ERD-2FCVG 101T 1/4W R(C-1200 ONLY) RES ERD-2FCVG 101T 1/4W R(C-1200 ONLY) RES ERD-2FCVG 101T 1/4W R(C-1200 ONLY) RES ERD-2FCVG 101T 1/4W R(C-1200 ONLY) RES NFR 10 1/4W J R PHILKO RES NFR 220 1/4W J R PHILKO
FR 100 FR 100 FR 100 FR 100 FR 10 FR 220
3089332275 3089479275
RES NFR 3.3K 1/4W J R PHILKO RES NFR 4.7 1/4W J R PHILKO
FR 3.3K FR 4.7
0.1% 0.1% 0.1% 75dB 60dB: ATT min. 95dB 100 ±40V/µs 0±2dBm 33±2dB 35±2dB 20k (Balance/Unbalance) Power (Red) Protection (Mute) x 2 (Red) Clip x 2 (Orange) Signal x 4 (Green) Power SW ON/OFF muting Heatsink Temp 100°C (212°F) RL < 2 50°C (122°F)60°C (140°F) Low-Speed Variable Hi-Speed (Front) Power SW: Push up On/Push down Off (Rear) Attenuator: Level Mode SW: Bridged/STEREO Low Cut SW, High Cut SW AC 110V240V, 50/60Hz 550W 810W 13.8kg 18.4kg 482(W) 132(H) 369(D) mm Input / Output: Barrier Strip
2058100103 2058100110 2058100987 2058100996 2058304100 2058322100 2118050410 2438007994 2438009992 2438007995 2648099940 3002220953 3009100973 3009102973 3009104973
DIODE KBPC-2504(SB256)LUG TYPE DIODE PS2010 PYUNG CHANG DIODE BRIDGE (KPBP) 152 DIODE RECTIFIER LT1N4006(4007) DIODE IN4148 DIODE 1SS145 ROHM IC TA7317P TOSHIBA POSISTOR PTH 59F04 BE471TS POSISTOR P42 T70330 B04200MM POSISTOR PTH 9M04 BH 471TS 2F COIL INDUCTOR 1.2UM RES CF 22K 1/5W F N RES CF 10 1/5W J N RES CF 1K 1/5W J N RES CF 100K 1/5W J N
PBU2504 PS 2010 KPBP 152 1N 4006 1N 4148 ISS 142 TA7317P 500 330
3089479275 3089479275 3089479275 3089479275 3089820275 3408210261 3419010345 3419510398 3619474153 3678050177 3678220177 3688471118 3698152198 4355755113 4355757008 4428595003 4428595004 4428599003 5508412234 5528007700 2008206104-T 2008206106-T 2008606108-T
RES NFR 4.7 1/4W J R PHILKO(C-1200 ONLY) RES NFR 4.7 1/4W J R PHILKO(C-1200 ONLY) RES NFR 4.7 1/4W J R PHILKO(C-1200 ONLY) RES NFR 4.7 1/4W J R PHILKO(C-1200 ONLY) RES NFR 82 1/4W J R PHILKO CAP RSG 1000UF 35V SNAP 16 P CAP HC 10000UF 80V CAP AF HM 10000UF 100V 40P LUG(C-1200 ONLY) CAP POLY TM 0.47UF 250V CAP M1 DM1 C 050D5 CAP M1 DM 5C 220J5 CAP MO SR22C 471JA CAP NPP POLY 152J 2J CON ASS Y 4P (360MM TUBE) CON ASS Y 2P LW5267/LWB0640/2.5MM-03P LW5267/LWB0640/2.5MM-04P WAFER YW025-03 FUSE TS 20MM 1A/250V U/C/S RELAY AZ971 - 1A DC24U TR PNP KTA 1268BL TR PNP KTA2400G KEC TR NPN KTC2240BL (KTC 3200BL)
FR 4.7 FR 4.7 FR 4.7 FR 4.7 FR 82 1000/35 10000/80 10000/100 474/250V 050D5 220J5 471JA 0.0015M 4P 2P
1.2uH 22K 1% 10 1K 100K
Protection PC Limiter Fan Circuit Controls
3009122973 3009123973 3009182973 3009184973 3009221973 3009223973
RES CF 1.2K 1/5W J N RES CF 12K 1/5W J N RES CF 1.8K 1/5W J N RES CF 180K 1/5W J N RES CF 220 1/5W J N RES CF 22K 1/5W J N
1.2K 12K 1.8K 180K 220 22K
YW025-03P T1AL/250V CR323 A 1268 KTA 2400G C3200
3009224973 3009271973 3009471973 3009473973 3009561973
RES CF 220K 1/5W J N RES CF 270 1/5W J N RES CF 470 1/5W J N RES CF 47K 1/5W J N RES CF 560 1/5W J N
220K 270 470 47K 560
2008606108-T 3039100575-T 3039479575-T 3248347110-T 3409210071-T 3409210141-T
TR NPN KTC2240BL (KTC 3200BL) RES MO 10 2W JR RES MO 4.7 2W J RADIAL RES SEMI 470 N6S25T1N CAP AF RSG 10UF 50V 5 P CAP AF RSG 100UF 25V 6 P
2SC 3200 10 2W 4.7 2W IDLE 470B 10/50 100/25
3009683973
RES CF 68K 1/5W J N
68K
Power Source Power Consumption Weight Dimensions Connectors
3009911973 3009751973 3009822973 3049478783
RES CF 910 1/5W RES CF 750 1/5W(C-1200 ONLY) RES CF 8.2K 1/5W J N RES CE 0.47 5W J T HAN NAE
910 750 8.2K 0.47 5W
0dB=0.775 Vrms, Half Power=1/2 Power Output Level (Rated Power) * Using reactive 2 speakers at high power levels may cause overheating, excessive power consumption, and shutdowns. Please note that below 2 the PC limiter will work. Before using 2 speakers in a real application, test the system completely.
3049478783 3049478783 3049478783 3049478783
RES CE 0.47 5W J T HAN NAE(C-1200 ONLY) RES CE 0.47 5W J T HAN NAE(C-1200 ONLY) RES CE 0.47 5W J T HAN NAE(C-1200 ONLY) RES CE 0.47 5W J T HAN NAE(C-1200 ONLY)
0.47 5W 0.47 5W 0.47 5W 0.47 5W
3409247041-T 3409247131-T 3509472530-T 3609104122-T 3609104122-T 3609104122-T 3609104122-T 3609222120-T 3609222120-T
CAP AF RSG 47UF 25V 5 P CAP AF RSG 470UF 16V CAP CE F 0.0047UF 50V Z CAP MA 0.1UF 100V J SMALL CAP MA 0.1UF 100V J SMALL CAP MA 0.1UF 100V J SMALL CAP MA 0.1UF 100V J SMALL CAP MA 0.0022UF 100V J CAP MA 0.0022UF 100V J
47/25 470/16 0.0047/50 0.1M/100 0.1M/100 0.1M/100 0.1M/100 0.0022M 0.0022M
* Specifications and design subject to change without notice for improvements.
2
3
TOP AND BOTTOM VIEW OF P.C. BOARD
Ref No. Part No. Description Value Ref No.
Q502 Q504 Q506 Q508 R501 - 502 R507 - 508 R513 - 518 R523 - 526 R531 - 532 R503 R505 R509 R511 R519 R521 R527 R529 R504 R510 R520 R528 R506 R512 R522 R530
Part No.
2008206105-T 3009152973
Description
TR PNP KAT 1268 RES CF 1.5K 1/5W J N
Value
A1268 1.5K
POWER B'D (4005183750)
C301 C302 C305 C306 C303 - 304 C307 - 308 C309 - 310 C311 - 314 CN301 D301 - 304 F301 - 302 IC301 IC302 3509104530-T 3409210071-T 3408247171 3409222171-T 3509103450-T 4428595003 2058100996 4458999110 2168640988 2168640987 CAP CE F 0.1UF 50V Z CAP AF RSG 10UF 50V 5P CAP RSA 470UF 50V SNAP 13P CAP AF RSG 220UF 50V SG 10P CAP CE 0.01UF 500V Z LW5267/LWB0640/2.5MM-03P DIODE RECTIFIER LT1N4006(4007) FUSE CLIP 5*20 IC 7815 SAMSUNG IC 7915 SAMSUNG 0.1/50 10/50 470/50 220/50 0.01 3P 1N4006 630mA 7815 7915
3009223973
RES CF 22K 1/5W J N
22K
3009221973 3009203973
RES CF 220 1/5W J N RES CF 20K 1/5W J N
220 20K
INPUT B'D (4005183700)
AN401 AN402 AN403 C401 - 402 C418 - 419 C403 - 404 C409 - 410 C416 C405 - 406 C420 - 421 C407 - 408 C422 - 423 C411 C426 C412 C427 C413 - 414 C417 C424 - 425 C429 - C431 C415 D401 - 404 IC401 - 405 R401 - 404 R420 - 423 R405 R408 R411 R415 R419 R424 R427 R430 R434 R406 R409 R425 R428 R407 R410 R426 R429 R412 - 413 R431 - 432 R414 R433 R416 - 418 R435 - 436 SW401 SW403 SW402 SW404 SW405 VR401 - 402 4355761590 4355761425 4355754804 3529560311-A 3409247033-T CON ASS Y 2P CON ASS Y INPUT 2P(3P) CON ASS Y 2P-3P CAP CE SL 56PF 50V J AXIAL CAP CE SE 47UF 16V 3*5 2P 3P 2P 56P 47/16
SW B'D (4005183730)
C601 C602 CN601 D601 D604 D602 F601 PO601 - 602 Q601 R603 RY601 3409210171-T 3409210141-T 4428595003 2058100996 2058502240 5568224533 2438200515 2028406113 3009822973 5528009993 CAP AF RSG 100UF 50V 8P CAP AF RSG 100UF 25V 6P LW5267/LWB0640/2.5MM-03P DIODE RECTIFIER LT1N4006(4007) DIODE ZENER UZ-24BM(23.1,25.5) CIRCUIT BREAKER W28-XQ1A-10A THERMISTOR POWER NTC 5D-15 TR NPN KTD 2058Y(D880Y) RES CF 8.2K 1/5W J N RELAY VH-24H O.E.G/TAKAMISAWA 100/50 100/25 3P 1N4006 UZ 24BM CIRCUIT BREAKER TH5D-15 D2058 8.2K HR-CR6
3609104122-T 3609473120-T 3609153120-T 3609333120-T 3539103521-A
CAP MA0.1UF 100V J SMALL CAP MA 0.047UF 100V CAP MA 0.015UF 100V J CAP MA 0.033UF 100V J CAP CE YF 10000PF 25V Z AXIAL
0.1(M) 0.047(M) 0.015(M) 0.033(M) 0.01
POWER TRANSFORMER & CIRCUIT BREAKER
PT1 PT1 PT1 PT1 PT1 PT1 PT1 PT1 F1 F1 F1 F1 2828062300 2828062310 2828062320 2828062330 2828062200 2828062210 2828062220 2828062230 5568224833 5568223733 5568224433 5568224533 TRANS POWER C-800 TRANS POWER C-800 TRANS POWER C-800 TRANS POWER C-800 TRANS POWER C-1200 TRANS POWER C-1200 TRANS POWER C-1200 TRANS POWER C-1200 CIRCUIT BREAKER 1.5A C-800 CIRCUIT BREAKER 8A C-800 CIRCUIT BREAKER 20A C-1200 CIRCUIT BREAKER 10A C-1200 120V(E) 220V(C) 230V(B) 240V(D) 120V(E) 220V(C) 230V(B) 240V(D) 120V(E) 220-240V(C,B,D) 120V(E) 220-240V(C,B,D)
3529220311-A 2058304100 2118010590 3002150953 3009180973
CAP CE SL 22PF 50V J AXIAL DIODE 1N4148M IC NJM4558D JRC RES CF 15K 1/5W F N RES CF 18 1/5W J N
22P 1N4148 4558D 15K 1% 18
3002270953 3002560953 3009101973 3001100953 3003470953 4618999910 4618999910 4625995610 3228083020
RES CF 27K 1/5W F N RES CF 56K 1/5W F N RES CF 100 1/5W J N RES CF 100K 1/5W F N RES CF 4.7K 1/5W F N SW SS65010-0203-9H-FN SW SS65010-0203-9H-FN SW SSSU022NB011 (9MM) -LG VR RK0971110A0113B(ROA33)
27K 1% 56K 1% 100 100K 1% 4.7K 1% Low cut High cut Bridge mono 10KB
LED B'D (4005183720)
AN504 AN501 AN502 AN503 C501 - 504 D501 - 502 LD501 LD502 LD506 LD504 LD503 LD505 LD507 LD508 Q501 Q503 Q505 Q507 4355754618 4355754715 4355755017 4355761814 3409222871-T 2058304100 2300052105 2300050105 2300050105 2300050105 2300050105 2300052105 2008606104-T 2P CON ASS Y 2P RED (390M TUBE) CON ASS Y 2P-WHITE(300MM TUBE) 2P 2P CON ASS Y 4P (360MM TUBE) 4P CON ASS Y 3P(4P) 3P CAP AF RSG 0.22UF 50V 5P 0.22/50 DIODE 1N4148M 1N4148 LED LTL-307G-041A LITEON SIGNAL 1 ED LTL-307E-041A LITEON CLIP ED LTL-307E-041A LITEON ED LTL-307E-041A LITEON ED LTL-307E-041A LITEON LED LTL-307G-041A LITEON TRNPN KTC 3198Y PRO BRIDGED POWER SIGNAL 2 C3198Y
4
5
WIRING DIAGRAM
6
7
BLOCK DIAGRAM
8
SCHEHATIC DIAGRAM
9
10
11
12
EXPLODED VIEW OF CABINET & CHASSIS/MECHANICAL PARTS LIST
15
S1
S5
13
10
S3
S5
C-800/1200 EXPLODED VIEW DWG PARTS, LIST
N0 PARTS NAME FRONT PANEL HANDLE 3 SIZE SPONGE FAN SW POWER HANDLE BKT MAIN CHASSIS LED B'D LENS LED LED SPONGE HEAT SINK (UP) HEAT SINK (DOWN) B.K.T HEAT SINK BRACKET PCB DC FAN PCB AMP B'D DIODE BRIDGE POWER TRANS SW B'D POWER B'D OUTPUT B'D INPUT B'D B.K.T V/R CIRCUIT BREAKER AC INLET TOP COVER FOOT PARTS NO 048602966611 048602966612 048603995230 6733996110 4625996611 6503986830 046121676111 046121676115 4005183720 8523997210 6735991010 7502089520 7502089420 6535995010 6505934810 7308998110 7308998010 4005185300 2058100979 2828063010 2828062910 4005183730 4005183750 4005183710 4005183700 6505932710 5568223733 4448997410 046123495021 6735991210 Q'TY 1 1 2 1 1 2 1 1 1 7 3 1 1 2 3 1 1 1 1 1 1 1 1 1 1 4 1 1 1 4 C-800 C-1200 C-800 C-1200 C-800 C-1200 REMARK C-800 C-1200
S3
11
1
12 25
2 3 4 5
14
S3
6
S6
S6
7 8 9 10
22
S4
21
11 12 13
S2
14 15 16 17
S2
6
S9 S6 S7 S9 S8
18
23
19 20 21 22 23
24
18
16
5
20
24
S6
19 1 2
S3
25
17
8 9
26
7
S1 S2
3
S3 S4 S5
26
SCREW BM 3X6B SCREW #2BTC 3X10B SCREW #3BTC 3X6B SCREW BM 4X30B HEX MSPW 3X16Y SCREW #3BTC 4X8BK ASS'Y SCREW PM 4X18B SCREW BM 4X12B SCREW BM 3X6N
8009130063 8109230103 8109330063 8009140303 8099130161 8109340083 8095996930 8159340103 8009130064
6 12 22 4 26 10 1 4 8
S6 S7 S8 S9
S3
4
13
14
ASS'Y DRAWING
6
7
8
9
4
280
C 1200 POWER AMPLIFIER
CHANNEL 1
CHANNEL 2
132
SIGNAL CLIP
PROT
PROT
CLIP SIGNAL
POWER OFF
15
MODEL NO. C-1200
POWER AMPLIFIER
CHANNEL 2
25 30 40
20
15
10 6 3
INPUTS
25 30 40
20
15
CHANNEL 1
10 6 3
5
440
482
POWER
ON
3
2
PUSH TO RESET 10A / 250V
~AC INPUT
S N
CHANNEL 2 CHANNEL 1
BRIDGED MONO OUTPUT
OFF OFF
HIGH CUT
LOW CUT
40Hz
5kHz
10kHz
80Hz
GND GND
-dB
0
BRIDGED STEREO
MODE
-dB
0
GND GND
10
OFF OFF
HIGH CUT LOW CUT
40Hz 80Hz
5kHz
10kHz
11
No. 1 2 3 4
Description
FRONT PANEL HANDLE(3SIZE) SW POWER TOP COVER
Part No
048602966611 048602966612 048603995230 4625996611 046123495010 046121676111 046121676112 046121676113
Q'ty
1 1 2 1 1 1 1 1 1 1 1 1 1 2 2 5 2 1 1 C-800
Remark
C-1200
C-800 (KOREA) C-800 (B,C,R 230V) C-800 (E 120V) C-800 (D 240V) C-1200 (KOREA) C-1200 (B,C,R 230V) C-1200 (E 120V) C-1200 (D 240V)
5
MAIN CHASSIS
046121676114 046121676115 046121676116 046121676117 046121676118
6 7 8 9 10 11
CONTROL KNOB SCREW TERMINAL 6P SW SLIDE SCREW TERMINAL 4P AC INLET CIRCUIT BREAKER
3228009017 4465996206 4618999510 4465996204 4448598810 5568224533
1
16