Yamaha P1150 Service Manual Download Page 5 | Manualshive

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Summary of Contents for P1150

Page 1: ... SPECIFICATIONS 1 4 PERFORMANCE GRAPHS 5 6 PANEL LAYOUT 7 8 DISASSEMBLY PROCEDURES 9 10 CHECK AND ADJUSTMENT 10 BLOCK DIAGRAM 11 DIMENSIONS 11 CIRCUIT BOARDS 12 16 EXPLODED VIEW 17 PARTS LIST 18 24 SCHEMATIC DIAGRAM 25 006650 YAMAHA NIPPON GAKKI CO LTD HAMAMATSU JAPAN 1 8r K 845 n Printed in Japan 8 5 4 ...

Page 2: ...e authorization certification recognition of any applicable technical capabilities or establish a principle agent relationship of any form The data provided is believed to be accurate and applicable to the unit s indicated on the cover The research engineering and service departments of Yamaha are continually striving to improve Yamaha products Modifications are therefore inevitable and changes in...

Page 3: ...ors Signal Green LED turns on when signal present at output is at or above 2 volts RMS 20 Hz 20 kHz Clipping Red LED turns on when THD 1 Protection Red LED turns on when protection or muting is on Pilot Red LED turns on when power is on Protection Circuits Muting Output muted 6 seconds 2 sec after power is on DC sense Output shut off if 2V DC sensed at output Thermal Output shut off if heat sink t...

Page 4: ...0 dB T 6 dB octave LPF 12 47 kHz Ti IHF A network Input Impedance 15kohnIS balanced o unbalanced ATT max Sensitivity 4 dBm 1 23 V rms fo nominal output 4 ohm load Voltage Gain 26 0 dB Indicators Signal Clipping Protection Pilot Green LED 20 Hz 20 Red LED tu Red LED tu Red LED tu urmon whensgnal presen rnson when THD 1 x rns on when protection or rns on when power is on t at output is 2 volts RMS P...

Page 5: ...PI 1 50 Pl 250 P21 50 P2250 P2250 ...

Page 6: ...NO BTL THD vs OUTPUT POWER CHARACTERISTICS Model P2250 Load Impedance 4n Mode STEREO Both Channels Driven 5 THD vs FREOUENCY CHARACTERISTICS Model P2150 Load Impedance 4f2 Mode STEREO Both Channels Driven Output Power 75W constant THD vs FREQUENCY CHARACTERISTICS odel P2150 Load Impedance 8n Mode MONO BTL Output Power 150W constant THD vs FREQUENCY CHARACTERISTICS Modet P22S0 Load Impedance 4Ii Mo...

Page 7: ...50 Load Impedance 8n Mode MONO BTL THD vs FREQUENCY CHARACTERISTICS Model P2250 Load Impedance 812 Mode STEREO Both Channels Driven Output Power 85W constant Model P2250 Load Impedance 8n MODE MONO BTL Output Power 250W DAMPING FACTOR CHARACTERISTICS Model P2250 Load Impedance 812 FREQUENCY RESPONSE CHARACTERISTICS odel all models Load Impedance 812 Input Attenuators Max ...

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Page 9: ...P2150 ...

Page 10: ...tor terminals with a resistor of 8J2 100W or so FLOW CHART I Top cover removaT 0Filter removal OUTPUT circuit board check r Idling current adjustment DC offset check 1 Front panel aaembly removal d PA unit removal PAA PAB circuit board removal Cooling Fan removal d Rear panel assembly removal I OUTPUT circuit board removal Shield bracket removal I INPUT circuit board removal TOP COVER REMOVAL GRIL...

Page 11: ...tch on in order for the main amp s operation to become stable 1 Idling current adjustment 2 DC offset check Adjust VR201 and or VR301 so that the voltage Check that the voltage across the SPEAKER terminals across the test points TP203 and TP204 on the PAA cir and is 0 lOmV in a no signal condition cuit board and or TP303 and TP304 on the PAB circuit board is 12mV 0 5mV in a no signal condition FRO...

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Page 13: ...PI 1 50 Pl 250 P21 50 P2250 CIRCUIT BOARDS Parts side INPUT CIRCUIT BOARD 12 ...

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Page 16: ...PI 1 50 Pl 250 P21 50 P2250 ...

Page 17: ...PI 1 50 Pl 250 P21 50 P2250 16 ...

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Page 19: ... AA 83 30 00 n P1250ML J AA 83 30 10 n II U C H AA 83 30 20 1 II II G AA 83 30 60 II P2150Mi J AA 83 30 70 H II II u c AA 83 30 80 II II G AA 83 29 40 II P2250M i J AA 83 29 50 n II II u c AA 83 29 60 n II II G 1 CB 80 86 50 Power Cord Holder a _ K fP 1 12 Ei 34 01 26 Bind Head Tapping Screw 4x12 Bl 1 13 LB 20 29 40 Fuse Holder 15A 250V t a X 4 p 1 J U C LB 20 05 90 n 6 3A 250V II 1 G 14 KB 00 04 ...

Page 20: ... Tapping Screw 4x8 Bl BLB 10 11 60 Receptacle AMP E9LB 1 0 1 1 80 Housing II Ei 34 00 86 Bind Head Tapping Screw 4x8 Bl U C cTI EV 41 30 46 Toothed Lock Washer A4S Bl ft u c BNA 81 42 40 OUTPUT Circuit Board 92350 OUTPUT F PI 150 PI 250 FU J G BNA 81 46 00 H II II II U BNA 81 45 70 II II II II C NA 81 45 30 II II II P2150MX J G HBNA 81 45 90 II II II II U BNA 81 45 60 II II II II C BNA 81 42 60 II...

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Page 22: ...l Film Resistor 3 9k l 1 4W IH ft HU 07 71 20 II 12kn 1 4W II HU 07 71 60 II 16kn 1 4W II HU 07 73 00 II 30kn 1 4W II HU 07 73 90 II 39kn 1 4W II P2150 P2250 HU 07 75 10 II 51 kn 1 4W II HL 31 51 00 Metal Oxide Film Resistor 1000 1W HL 32 71 00 II lOkO 2W II HZ 00 50 80 Wire Wound Resistor 6800 15W fe V h ft P1150 P2150 HZ 00 50 30 II IkO 15W II P1250 P2250 HY 00 19 20 Detent Variable Resistor 20k...

Page 23: ... P2250 1 NA 81 42 10 PAB Circuit Board c 92010 P A B F P2150 NA 81 42 30 II II II P2250 HV 35 34 70 Flame Proof Carbon Resistor 4 70 HV 35 42 20 II 220 II HV 35 44 70 II 470 II HV 35 51 00 II 1000 II HV 35 51 20 II 1200 II HV 35 52 20 II 2200 II HV 35 52 70 II 2700 II HV 35 53 30 II 3300 II HV 35 55 60 1 5600 II HV 35 63 00 II 3kO II HU 57 54 30 Metal Film Resistor 4300 1 4W wi m is tx P1150 P2150...

Page 24: ...PI 1 50 Pl 250 P21 50 P2250 New Parts Sr Wa ...

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Page 26: ...PZ150 P2Z50 P1150 P1Z50 llWFUT A TeNUAToW ...

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Page 28: ...j p eh 4 ...

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Page 31: ...ABBREVIATIONS RE Red SB Sky Blue VI Violet m White YE Yellow iagram subjects to change without notice ...

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