Crest CC5500 · amplifier

Main board

144 components · 36 parts identified · 5 photos. Tap a marked part to see what it is.

328 traced nets on this board are available to technicians. See plans

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Parts on this board

DesignatorPart (number or value)DescriptionPackage
C204-cha turn on inactive state timing capacitor
C207-dc detect
C208-chb power on acl light turn off delay timing capacitor
C21310uf 35v 121010uf
C404-chb turn on inactive state timing capacitor
D10916CTQ100Scha negative
D11016CTQ100Scha positive
D187, D387-driving current limiting condition
D209, D409-driving clip condition
D30916CTQ100Schb negative
D31016CTQ100Schb positive
D390, D3914148 MINIMELF
D393, D394MURS160
IC100, IC300MMPQ6700
IC101LM393cha ocp and clip
IC101, IC301LM393
IC102, IC302NJM5534M
IC103LM317+18v. adj out in.
IC103, IC203LM317T
IC105LM311Mcha positive
IC106LM311Mcha negative
IC200AS358Mcha temp and amp ocp
IC201AS358Mcha temp light and fan
IC300MMPQ6700Contains 2 npn and 2 pnp. Both NPNs and PNPs in parallel as pre-pre-drivers.
IC301LM393chb ocp and clip
IC303LM337-18v. adj in out.
IC305LM311Mchb positive
IC306LM311Mchb negative
IC400AS358Mchb temp and amp ocp
IC401AS358Mchb temp light and fan
IC505, IC506LM35D
J9-chb feedback jumper. Install jumper to test when the transformer high voltage is not connected. Signal light stays on if this is not removed and high voltage connected.
J14-cha feedback jumper. Install jumper to test when the transformer high voltage is not connected. Signal light stays on if this is not removed and high voltage connected.
J100-cha
J300-chb
Q100, Q3002SC4695unique high vebo 25vcp
Q102-cha vbe multiplier
Q131HGTG30N60C3Dcha positive
Q132HGTG30N60C3Dcha negative
Q302MMBT5401chb vbe multiplier
Q3042SC4793npn bce pre-driverto220f
Q3052SA1837pnp bce pre-driverto220f
Q309MMBT5551current sense
Q310MMBT5401current sense
Q331HGTG30N60C3Dchb positive
Q332HGTG30N60C3Dchb negative
R11210k ohm 1206control_a pull down 10k
R125CA-51007R55%
R165, R365-2.2k
R172511 ohm 12065101206
R217-cha turn on inactive state timing resistor
R31210k ohm 1206control_b pull down 10k
R325CA-51007R55%vishay dale ca-5100 series 4.32x25.4mm
R3491k ohm 1206
R3542.21k ohm 1206
R3551.21k ohm 12061.21k
R356, R35749.9 ohm 120649.9
R358, R3592.2k ohm 20102.2k
R372, R373, R376, R377511 ohm 1206511
R417-chb turn on inactive state timing resistor
R501221 ohm 1206221
TR200, TR400MAC97Ato92
VR100, VR200500 ohm variable carbon
-volume pots and display lights, active temo signal acl
-cha negative driver
-cha positive driver
-surge relay
-cha power on acl light turn off delay timing capacitor
0.33 ohm 5w axial 4.32x25.4mmObsolete vishay dale ca-5100 series ca-5100r335%. Substitute MRA-05R3300FE12 0.33
2SA1943chb positive driver
2SC5200chb negative driver
511 ohm 1206
MF-SM0751.1A, 30V surface-mount polymeric positive temperature coefficient (PPTC) resettable fuse. polyswitch
MF-SM075polyswitch
MMBT5401cha vbe multiplier
NJM13700M
NJM13700MIout = Vin x Gm where Gm is the transconductance(gain) and is directly proportional to the amp bias current.
PCB TRACE

Marked, not identified yet: C24, C105, C113, C193, C194, C305, C313, C393, C394, C407, D4, D9, D10, IC102, IC302, IC502, J2, Q104, Q105, Q201, Q209, Q304, Q305, Q401, Q409, R1, R2, R106, R107, R149, R167, R238, R270, R306, R307, R361, R383, R438, R500, Z200, Z305, Z306, Z400