Marantz SR4000 Service Manual - Page 64
Monoboard Supply, Sr4000
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11-10 1251 A1 1252 A1 1253 I1 1254 L1 1255 F1 1257 L9 1258 E4 1265 G9 2251 B3 2253 B5 2254 C4 2256 C7 2259 D8 2260 B8 2262 C8 2264 C8 2266 I3 2268 J4 2269 J5 2270 I5 2271 I6 2272 K4 2273 K5 2274 K6 2275 K4 2276 L5 2277 L6 2278 M3 2281 H5 2282 H7 2283 F4 2290 H5 2295 H6 3254 J5 3256 M4 3257 L3 3258 M3 3265 E4 3266 F7 3268 E5 3269 E5 3270 F7 3271 F7 3291 G4 3292 H7 3293 H6 3294 H6 3295 I7 4253 D4 6251 B3 6252 B5 6253 B6 6257 I3 6258 I3 6259 I4 6260 H6 6261 J3 6262 J3 6263 J4 6265 J6 6267 L6 6268 K2 6274 D2 6275 D2 6276 E6 6280 F6 6281 F6 7253 M3 7257 E5 7258 E6 7908 H6 7910 G6 9251 B2 9252 C2 9260 E4 1 2 3 4 5 6 7 8 9 MONOBOARD SUPPLY SR4000 A 1251 1252 1 1 9251 +VL 2 2 2260 B 3 3 2251 100n 6251 D5SBA20 6252 D3SBA20 2253 47n 6253 D5SBA20 4700µ A +VH A 2254 2256 2264 4 4 100n 47n 4700µ A C 9252 -VH 5 5 2262 4700µ To 1073/1074 Mains trafo 6275 6274 D 1N4003GP 1N4003GP 4253 A -VL 2259 4700µ A 1258 T1A6 3265 7257 7258 BC327-25 BC327-25 -30 47E 22k 47E 47E E F 1255 1 f1 9260 3268 3k3 3269 3k3 2283 220µ -30V CIRCUIT S 6276 BZX79/ C5V6 6280 BZX79/C10 6281 BZX79/C22 S 3266 S 3270 3271 10 A B C D E To Left & Right & Center Amplifier F 2 f2 amp 3 G prot 4 S To 1072 Mains trafo H 1253 1 3291 10E +24 7910 BD242BFP 2281 100n REF REF 2290 10µ 10k 3293 3294 10k 2295 10n 7908 6260 BC857B L7812GP REF 1 3 15k 15k -12 3292 2282 470n REF 3295 +12 I 6257 2266 6258 6259 2270 2271 1N4003GP 100n 100n 2 470n 2 4x 1N4003GP REF REF REF 6261 2268 2269 1N4003GP 6262 6263 100n 2200µ 3 J To 1071 Mains trafo 0E33 3254 6265 L7805 S 1 3 +5 2272 K 6800µ 6268 1254 1N4003GP 0E33 3257 S 2275 1000µ 3 +V L +5D +5D 3258 3256 2273 100n REF 2 REF 2274 470n REF 6267 L7805 1 3 +5D 2276 100n REF 2 REF 2277 470n REF 180k 10k 2 MFD M POWER DOWN 4 2278 1µ 7253 BC847B CIRCUIT S S S 1 Relay N To 0051 Mains part Monoboard Supply FR960 - FR970 3104 217 05970 / 05990 Only FR960 1 2 3 4 5 6 7 8 amp prot G 1265 +VL 1 +VL 2 3 H 4 5 A -VL 6 -VL To 1902 I Surround amplifier J REF A S DIG K 1257 8 f1 7 L f2 -30 6 -30 5 DIG +5D 4 +5D M +5 3 +5 2 amp pd 1 amp stdby To 1426 Front Part N LEU0157 9921 9 10
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