Rotel RB-981, Technical Manual

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SYMBOL PARTS NO. DESCRIPTION SYMBOL PARTS NO. DESCRIPTION
Parts List Adjustment
Instruments : DC milli–voltmeter
Notes : Prior to Bias Adjustment, run about 5minutes with rated output(8ohms) and
warm up Power Transistor and Heat Sink. Set input off.
Step
Coupling
Plus Lead
TP1–1
TP2–1
TP1–2
TP2–2
X–1240–01 PCB
X–1240–01 PCB
VR601
VR602
1
2
Minus Lead
Location Adjust Adjust for
DC milli–voltmeter reads 5mV
E
C
B
B
C
E
E
E
C
C
B
B
2SA1376
2SC3478
2SA1209
2SC2911
2SA1016K
2SC2362K 2SA1667
2SC4381 2SD1953 2SA1492
2SC3856
C601,602 041 50BGF4R7M
C603,604 044 TFKP2–100V681H
C605,606 044 LFSC160V221H
C607,608 041 25BGF100M
C609,610 044 LFSCl60V331H
C611,612 041 50BGF10M
C613–616 044 LFSC160V561H
C617,618 044 LFSC160V471H
C623,624 044 MKT18–100V104K
C802 041 GS25V101–B
C803 041 GS63V221–D
C804 041 GS63V220–B
C901–908 043 LTC500V103
C909–912 041
ALC20S1023XX
D601–608 034 LT1N4148–86
D609–612 034 LT1N4003–TB
D80l 034 LT1N4148–86
D802 034 TRD6. 2JST1
D803–806 034 LT1N4003–TB
D807,808 034 LT1N4148–86
D901,902 034 LBR84
F601–604 036 5ST5
PJ1 066 L4TR–2487#8
PJ2 066 L4TR–2487#7
Q601–606 033 LT2SC2362KAA–FG
Q607–612 033 LT2SA1016KAA–FG
Q613,614 033 L2SA1209–ST
Q615,616 033 L2SC2911–ST
Q619,620 033 T2SC3478T–LKU
Q621,622 033 T2SA1376T–LKU
Q801–803 033 LT2SC2362KAA–FG
R601,602 054 LEE10–102
R603,604 054 LEE10–333
R605,606 054 LEE10–471
R607–610 054 LTMK201K5FECZ
R611,612 054 LTMK2220RFECZ
R613,614 054 LTMF1/4–5600F
R615–618 054 LTMK201K5FECZ
R619,620 054 LTMK2220RFECZ
R621,622 054 LTMK2047KFECZ
R623,624 054 LTMK2100RFECZ
R625,626 054 LTMF1/4–6801F
R627,628 054 LTMF1/4–3901F
R629,630 054 LTMK2100RFECZ
R631,632 054 LTMK2001KFECZ
R633,634 054 LTMK2047RFECZ
R635–646 054 NIR2–0. 22JF
R647,648 054 2WS10JF
R651,652 054 LTMK2018KFECZ
R653,654 054 LTMF3300
R655–658 054 LTMK2220RFECZ
CAP, ELEC. 50V4. 7UF
CAP, FILM 100V680PF
CAP, STYROL 160V220PF
CAP, ELEC. 25V100UF
CAP, STYROL 160V330PF
CAP, ELEC. 50V10UF
CAP, STYROL 160V560PF
CAP, STYROL 160V470PF
CAP, FILM 100V0. 1UF
CAP, ELEC. 25V100UF
CAP, ELEC. 63V220UF
CAP, ELEC. 63V22UF
CAP, CERA. 500V0. 01UF
CAP. ELEC. 63V10000UF
DIODE
DIODE
DIODE
ZENER DIODE
DIODE
DIODE
POWER DIODE
MINI FUSE 250V5A
1P PIN JACK(WHT)
1P PIN JACK(RED)
TRANSISTOR
TRANSISTOR
TRANSISTOR
TRANSISTOR
TRANSISTOR
TRANSISTOR
TRANSISTOR
R, METAL 1K
R, METAL 33K
R, METAL 470R
R, METAL 1% l. 5K
R, METAL l% 220R
R, MRS25 560R
R, METAL l% l. 5K
R, METAL 1% 220R
R. METAL l% 47K
R, METAL 1% 100R
R, MRS25 6. 8K
R, MRS25 3. 9K
R, METAL l% 100R
R, METAL l% 1K
R, METAL l% 47R
R, METAL 2W 0.22R
R, METAL 2W 10R
R, METAL l% 18K
R, METAL 330R
R, METAL 1% 220R
X–1240–01 PCB ASSEMBLY
R661 054 LTMK2018KFECZ
R801
054 1WS2. 7KJF
R802 053 CR14–101J–A
R803 053 CR14–104J–A
R804 053 CR14–224J–A
R805 053 CR14–104J–A
R806 053 CR14–333J–A
R807 053 CR14–104J–A
R808 053 CR14–272J–A
R809, 810 054 1WS6. 8KJF
R811, 812 053 CR14–104J–A
R813, 814 053 CR14–183J–A
R815, 816 053 CR14–392J–A
R817, 818 053 CR14–273J–A
R819 054
1WS6. 8KJF
RY801 063 EG2–24NU
S601–603 068 TD–03SG
SP1 067 C–4493A00
TH601, 602 034 TD5C350D
VR601, 602 051 LVM6CKPV1S2.2K
019 TO–126
069 C–3417A
C001 044 DE7150F472M
S00l 061 LC–4176A02
Q617, 618 032 2SD1953
Q623, 624 033 2SC4381–OY
Q625, 626 033 2SA1667–OY
Q627–632 033 2SC3856 –OPY
Q635 –640 033 2SA1492–OPY
019 TO–220
019 TO–3P
017 RM4–08B00
011 TFP–801A
012 L4TQF–15
014 C–4550A13
014 L4TR–2797#3
014 RM4–07A00
015 RP–334
019 L4TSH–19#2
019 4TR–2823#2
022 T–1052W04
072 L4TR–670#5
072 LC–3763
072 C–4572A0l
072 C–4573A01
081 LTZ–183
081 RM4–11B00
R, METAL 1% 18K
R, METAL 1W 2.7K
R, CARBON 100R
R, CARBON 100K
R, CARBON 220K
R, CARBON 100K
R. CARBON 33K
R. CARBON 100K
R, CARBON 2.7K
R, METAL 1W 6.8K
R, CARBON 100K
R, CARBON 18K
R, CARBON 3.9K
R, CARBON 27K
R, METAL 1W 6.8K
RELAY
3P CONNECTOR WAFER
SPEAKER TERMINAL
THERMISTER
SEMI–FIXED RESISTOR
INSULATION SHEET
FUSE CLIP
SPARK KILLER
POWER SWITCH
TRANSISTOR
TRANSISTOR
TRANSISTOR
POWER TRANSISTOR
POWER TRANSISTOR
INSULATION SHEET(S)
INSULATION SHEET(L)
HEAT SINKER BOARD
FRONT PANEL ASSY
POWER BUTTON 14X14
UPPER COVER
ORNAMENT SIDE BOARD
BOTTOM BOARD
REAR CHASSlS
PLASTIC FOOT 50F
PLASTIC FOOT 24F
POWER TRANSFORMER
AC CORD for STD
AC CORD for AUSTRALIA
AC CORD for UK
AC CORD for CEE
STYROL SIDE MOULDING
INSIDE CARTON
X–1240–02 PCB ASSEMBLY
HEAT SINKER ASSEMBLY
OTHERS
4 3