Parts List#

Key components commonly needed for repairs. For the complete parts list, refer to the service manual pages 13-25.

Semiconductors - Power Supply#

Switching FETs#

RefPart NumberDescriptionQty
Q903-Q90648E39087S01FET, 2SK36624

Gate Drivers#

RefPart NumberDescriptionQty
Q901, Q90248E39095S01TR, 2SB1132(Q)-T1002

Rectifier Diodes#

RefPart NumberDescriptionQty
D801, D80848E39098S01DIO, 11EFS2-TB52
D80248E39085S01DIO, FCH10A151
D80348E39086S01DIO, FRH10A151

Voltage Regulators#

RefPart NumberDescriptionQty
Q80148E38139S01TR, 2SC3421(Y)1
Q80248E38138S01TR, 2SA1358(Y)1

PWM Controller#

RefPart NumberDescriptionQty
IC92051E38256S01IC, uPC494GS-E1-A1

Transformer#

RefPart NumberDescriptionQty
T90125E39082S01TRANS, DC/DC(5:8:1)1

Semiconductors - Output Stage (Per Channel)#

Output Transistors#

RefPart NumberDescriptionNotes
Q161/Q261/Q361/Q46148E39083S01TR, 2SC5100(Y)NPN output
Q162/Q262/Q362/Q46248E39084S01TR, 2SA1908(Y)PNP output

Driver Transistors#

RefPart NumberDescriptionNotes
Q159/Q259/Q359/Q45948E39097S01TR, 2SC2235(Y)NPN driver
Q160/Q260/Q360/Q46048E39080S01TR, 2SA965(Y)PNP driver

Pre-Driver/Voltage Amp#

RefPart NumberDescription
Q151/Q251/Q351/Q45148E38241S01TR, 2SC3326(A)-TE85L
Q152/Q252/Q352/Q45248E38245S01TR, 2SC4207(Y)-TE85L
Q153-Q154, etc.48E38236S01TR, 2SC2412K(R)-T146
Q155/Q255/Q355/Q45548E38283S01TR, 2SA988F-T-A
Q156/Q256/Q356/Q45648E38282S01TR, 2SC1841F-T-A
Q158/Q258/Q358/Q45848E38243S01TR, 2SC2713(GR)-TE85L

Semiconductors - Preamp#

Op-Amps#

RefPart NumberDescriptionQty
IC501-IC51851E38257S01IC, NJM4565M-TE118

Protection Circuit#

Thermistors#

RefPart NumberDescriptionQty
TH920-TH92448E39071S01THERMISTOR, 100K5

Control Transistors#

RefPart NumberDescription
Q92048E39080S01TR, 2SA965(Y)
Q921, Q922, Q927, Q93048E38250S01TR, DTC114EKA-T146
Q923, Q92648E38247S01TR, DTA114EKA-T146
Q92448E38251S01TR, DTC144EKA-T146
Q92548E38237S01TR, 2SA1037AK(R)-T146

Passive Components#

Fuses#

RefPart NumberDescriptionQty
F901, F90265E39088S01FUSE, AUTO 15A2

Connectors#

RefPart NumberDescription
CN50109E39020S01CONN, 8P
CN55129E39039S01TERMINAL, 8P-SPEAKER
CN92129E39038S01TERMINAL, 3P-POWER
CN92209E39019S01CONN, PH2P
PJ50128E39040S01JACK, (RCA)6P

Switches#

RefPart NumberDescription
SW50140E39029S01SW, SLIDE 2-2
SW502, SW50340E39030S01SW, SLIDE 2-3

Potentiometers#

RefPart NumberDescription
VR501, VR50218E39024S01VOL, 9T(5488)10KC×2
VR503, VR50418E39025S01VOL, 9T(5489)50KE×4

Common Repair Kits#

Based on typical failures, consider stocking:

DC/DC Converter Kit#

  • Q903-Q906: 2SK3662 × 4
  • Q901, Q902: 2SB1132 × 2
  • D801, D808: 11EFS2 × 2
  • D802: FCH10A15 × 1
  • D803: FRH10A15 × 1

Output Stage Kit (Per Channel)#

  • Q161: 2SC5100 × 1
  • Q162: 2SA1908 × 1
  • Q159: 2SC2235 × 1
  • Q160: 2SA965 × 1