Rotel RDA-975 Service manual

Quality Uncompromised

Technical

Manual

Table of Contents

Specification......................................

Parts List...........................................2~6

PCB Assembly..................................7~9

Schematic Diagram ..........................10~13

®

DOLBY DECODER

RDA-975

THE ROTEL CO., LTD.

SHINSEN-BLD. 4F 10-10 SHINSEN-CHO, SHIBUYA-KU,
TOKYO 150-0045, JAPAN

Serial. NO.

Beginning

Y-351A-0107/W

Parts List (1/5)

2

SYMBOL PART NO. DESCRIPTION SPECIFICATION

651B2U56B21P AC CORD SPT-2 #18AWG
85A556****** ACRY A-556
85A491****** ACRYLIC,LIGHT GUIDER A-491 ROUND
85A499****** ACRYLIC,LIGHT GUIDER A-499
75L63300177* AL PLATE L-633
93AU1*******
97D161****** ALUMINUM FOIL D-161
78C233701015 BOTTOM PLATE C-2337

TRANSFORMER 78C206000587 BRACKET,U-TYPE C-2060

78233801027* BREAKET,LEFT C-2338
78C233601014 BREAKET,RIGHT C-2336

98BSB4F1K*** BUSHING SB4F-1
POWER SWITCH 594722ERKCBW CAPACITOR,VDE 472/250V
TRANSFORMER TO B2882 J2 66HD686***** CONNECTOR ED-686 3P
TRANSFORMER TO B2882 J1 66HD463***** CONNECTOR ED-463 2P
TV3 92S064***** COPPER POST 12MM S-064

85A560****** FILM A-560

85A544****** FILTER A-544

81A4TSH19*** FOOT CUSHION 4TSH-19#2 50Φ

78C230501013 FRONT PLATE C-2305
B2882 F1-F3 2652000222*2 FUSE 19195 2A/250V T 5x20
SIZE 493x390x127 91IRDA975*** INSIDE CARTON G00065

60B2880***** P.C.B. B2880

60B2881***** P.C.B. B2881 KEY

60B2882***** P.C.B. B2882 POWER

60B2403A**** P.C.B. B2403B Z38500
KEY 85A480****** LIGHT BOX A-480
80MM 85A561****** ORNAMENT END CAP A-561 4TR-2797#2
SIZE 503x406x320 91CRDA975*** OUTER CARTON G00066

SCCR*P1809B* PLASTIC SCREW 1/8x9

80TQF15***** POWER PUSH KNOB 4TQF-15

20PSDLB1007U POWER SWITCH SDDLB1007U TV3

80KB383***** PUSH KNOB 2P KB-383

80KB382***** PUSH KNOB 3P KB-382

85A4TTL15*** PUSH SW CONNECTOR 4TTL-2(A-365)

97DS072***** PUSH SW SPRING TR-1988A(S-072)

85A358****** PVC,UPPER A-358(4TR-2418)

78C230601017 REAR PLATE C-2306
B2881x8.B2882x4.B2880x3 SCCR*T3006Y* SCREW CRTS 3x6

SCCR*T3006B* SCREW CRTS 3x6 B
FOOT CUSHION SCCR*T3008B* SCREW CRTS 3x8 B

SCCR*T3006B* SCREW CRTS 3x6 B
TV3.B2880x3.B2403Ax4 SCCR*M3006Y* SCREW CRMS 3x6 Y
TRANSFORMER SCCRWM4008B* SCREW CRWMS 4x8 B

SCCB*R3008B* SCREW CRTS 3x8 B

SCCF*T3008W* SCREW FLAT CRTS 3x8 W

78C233101018 SI-STEEL SHIELD C-2331

94D175****** SPONGE,EVA D-175 11x11x25
REAR PLATE STICKER EL-008
INSIDE CARTON STICKER EL-009

9903RDA975** STYROFOAM TZ-165-1-1

E53018M212** TRANSFORMER E53018M212**
POWER 990130ULB*** TUBE,SLEEVE 30Φ BLACK

78C230701016 UPPER COVER C-2307

85A506****** WASHER,LED A-506

85A418****** WASHER,RCA A-418

ALL PLATIC WIRE CONNECTOR

WASHER,PUSH SW 4TQF-13

S-1

Parts List (2/5)

3

SYMBOL PART NO. DESCRIPTION SPECIFICATION

ACCESSORIES

68DB25****** DB25 CABLE WGC-1

99ORDA975*** OWER'S MANULAN RDA-975

9905RDA975** WARRANTY STATEMENT

PCB B 2 8 8 0

C9 491021HREFDT CAPACITOR CERAMIC 102/50V F/Z
C34.35.36.37.38.39.40.97.101 491031HRZFDT CAPACITOR CERAMIC 103/50V F/Z
C11.12.13.102.103.104.128-133 490471HRKSDT CAPACITOR CERAMIC 47P/50V SL/K
C24.25.26 491011HRKSDT CAPACITOR CERAMIC 100P/50V SL/K
C14.56.57.61.62.66.67.71.72.76.77.81.82.105.

120.122.124.126.135.138-145
C114.115.116.117.118.119 401001H0511T CAPACITOR ELEC 10U/50V
C10.58.59.60.63-65.68-70.73-75.78-80.83-85 404701E0511T CAPACITOR ELEC 47U/25V
C121.123.125.127 401011E6311T CAPACITOR ELEC 100U/25V
C23 481001H0511T CAPACITOR ELEC 10U/50V NP
C1.2.3.4.5.6.8.52.53.54.55.96.100.134.137 484701E0811T CAPACITOR ELEC 47U/25V NP
C42.44.46.48.50.136 501021HRJENT CAPACITOR MYLAR 102J/50V
C27.28.29.30.31.86.87.88.89.98.99 501041HRJENT CAPACITOR MYLAR 104J/50V
C32 502241HRJEMT CAPACITOR MYLAR 224J/50V MIN
C33 503331HRJENT CAPACITOR MYLAR 333J/50V
C7 508231HRJENT CAPACITOR MYLAR 823J/50V
C41.43.45.47.49.51 503321HRJENT CAPACITOR MYLAR 332J/50V
C90.91.92.93.94.95 531722AWORKF CAPACITOR PP-D 172/50V
F1.2.3.4.5.6.EMIF1.2.3.4.5.6 21FILTER102* CERAMIC FILTER 102

D1.2.3.4.7 131N4007**** DIODE 1N4007
D5 131N4148**** DIODE 1N4148
Y1 73B3C2T7P5P8 FERRITE BEAD 3.5x7.5x0.8
U19.20.21.22.25.26 11NJU201AD*D IC NJU201AD
U6.18 11NE5532AN*D IC NE5532AN
U24 11NJM353D**D IC NJM353
U11.12.13 11OPA2604APD IC OPA2604AP
U2.3.4.5.7.8.9.10.14.23.42 11AD712***** IC AD712JN
U15.16.17 11PCM1710U*S IC SMT PCM1710U

J13 68HSP246V634 RCA JACK HSP-246V6-34 6P
R135 300220C4TJ2T RESISTOR CARBON 1/4W T 220
R4.13.20.25.30.46.68.70.74 3002K2C4TJ2T RESISTOR CARBON 1/4W T 2K2
R11.45.49.82 3002K7C4TJ2T RESISTOR CARBON 1/4W T 2K7
R6.36.57.58.59.60.61 3004K7C4TJ2T RESISTOR CARBON 1/4W T 4K7
R99.107.118 3005K6C4TJ2T RESISTOR CARBON 1/4W T 5K6
R65.85.87.89.91.93.95.134 3006K8C4TJ2T RESISTOR CARBON 1/4W T 6K8
R7.8.9.10.98.108 30010KC4TJ2T RESISTOR CARBON 1/4W T 10K
R42.50.51.55.72.100 30012KC4TJ2T RESISTOR CARBON 1/4W T 12K
R48.78.79.80.81 30015KC4TJ2T RESISTOR CARBON 1/4W T 15K
R37.38.39.40 30018KC4TJ2T RESISTOR CARBON 1/4W T 18K
R41.43.52.56.71 30022KC4TJ2T RESISTOR CARBON 1/4W T 22K
R53.54.62.63.64.73.75.76.77.83.115 30047KC4TJ2T RESISTOR CARBON 1/4W T 47K

R5.12.21.26.31.35.44.67.69.97.106.109-114.117

R116 30330KC4TJ2T RESISTOR CARBON 1/4W T 330K
R86.88.90.92.94.96 39033001MJ** RESISTOR M.O.F 1W 330
R1.2.15.16.17.18.22.23.28.29.32.33 324K02C4TF2T RESISTOR METAL 1/4W T 4K02
R3.14.19.24.34.47 325K36C4TF2T RESISTOR METAL 1/4W T 5K36
R27.101.102.103.104.105 326K04C4TF2T RESISTOR METAL 1/4W T 6K04
SW2.SW4 NO MONO NO 20S04P022BY* SLIDE SWITCH SS004-P022BY-PF8
SW1.SW3 NO OFF NO 20S04P223BS* SLIDE SWITCH SS004-P223BS-PF8

561041HRZFDT CAPACITOR CERAMIC X7R 104/50V

68DBR25MTKO* DB25 JACK DBR25MTKO MALE

60B2880***** P.C.B B2880

30100KC4TJ2T RESISTOR CARBON 1/4W T 100K

Parts List (3/5)

4

SYMBOL PART NO. DESCRIPTION SPECIFICATION

Q7 122SA970BL*T TRANSISTOR 2SA970BL/GR
Q8.9.10.11 122SC1815BLT TRANSISTOR 2SC1815BL/GR
Q1.2.3.4.5.6 122SC3327**T TRANSISTOR 2SC3327
J11 66W504508R** WAFER 5045-8P
J1.3.4 66W504504R** WAFER 5045-4P
J12 66W504503R** WAFER 5045-3P
J2 66W396302R** WAFER 5045-2P
D6 13Z4P70P5*** ZENER DIODE 4.7V/0.5W
Z1 13Z5P60P5*** ZENER DIODE 5.6V/0.5W

PCB B 2 8 8 1

C27 492021HRZFDT CAPACITOR CERAMIC 202/50V F
C14.15 490301HRKSDT CAPACITOR CERAMIC 30P/50V SL
C29-38.39-43 561041HRZFDT CAPACITOR CERAMIC 104/50V
C26 404701E0511T CAPACITOR ELEC 47U/25V
C17 401011E6311T CAPACITOR ELEC 100U/25V
C16 482201H0811T CAPACITOR ELEC 22U/50V NP
B2881 J6 TO B2880 J2 66HD945***** CONNECTOR ED-945 2P
B2881 J3 TO B2880 J12 66HD757***** CONNECTOR ED-757 3P
B2881 J4 TO B2403A J11 66HDA42***** CONNECTOR ED-A42 4P
B2881 J5 TO B2882 J3 66HD948***** CONNECTOR ED-948 3P
B2881 J2 TO B2403A J1 66HDA43***** CONNECTOR ED-A43 5P
B2881 J1 TO B2403A J7 66HDA41***** CONNECTOR ED-A41 6P
Y1 21CSA1200MTZ CRYSTAL OSC CERAMIC 12MHZ
D25.26 131N4148**** DIODE 1N4148
DIS2 18SDC0311EWA DISPLAY LED DC03-11EWA
DIS1 18SC0312EWA* DISPLAY LED SC03-12EWA
Q8 11M51951BSLB IC M51951B
U11 11F16V8B15PD IC ATF16V8B
U2 1156A11251*D IC AOC 56A1125-1
U18 11BA618****D IC BA618
C3.4.5.6.7.17 11CD74HC573E IC CD74HC573E
U1 1127C256R12D IC M27C256B
U12.13.14.15 11DT5C114E*D IC DT5C114E
U16 11TC74HC02AP IC 74HC02AP
U8.9 1174HC244AED IC 74HC244AP
U10 1193C46****D IC 93C46
D5.6.7.8.9.10.11.24 18L3XAT***** LED L-3XAT
D16.17.18.20.21.22.23.33 18L934IT**** LED L-934IT

1.2.3.4.19.27.28.32 18L3XGT***** LED L-3XGT
D12.13.14.15 18L937EYC*** LED L-937EYC
B2881 P2 TO B2403A B W100726400O* MULTI THREAD 1007#26 400MM
B2881 C26 + TO B2881 Q8.3 W100726210** MULTI THREAD 1007#26 210MM
B2881 D31 + TO B2881 +5V W100726030** MULTI THREAD 1007#26 30MM

60B2881***** P.C.B B2881
R2-16.32.38.39.42 300472C4TJ2T RESISTOR CARBON 1/4W T 470
R20.21.22.23.24.25.26.45 30001KC4TJ2T RESISTOR CARBON 1/4W T 1K
R17.18.19 3004K7C8TJ2T RESISTOR CARBON 1/8W T 4K7
R27.28.29 3005K6C8TJ2T RESISTOR CARBON 1/8W T 5K6
R33.34 30010KC8TJ2T RESISTOR CARBON 1/8W T 10K
R1 30022KC8TJ2T RESISTOR CARBON 1/8W T 22K
R35.36 30022KC8TJ2T RESISTOR CARBON 1/8W T 100K
R37 30001MC8TJ2T RESISTOR CARBON 1/8W T 1M
B2881 Q7(E) TO R40 3002K2C4TJ5B RESISTOR CARBON 1/4W T 2K2

30.31 29C44730807J RESISTOR NETWORKS 47K x 7
U1 10A28PBD**** SCOKET,IC 28P Pith 2.54
U11 10A20PBD**** SOCKET,IC 20P Pith 2.54
SW1-10.SW12.13 20GB3F1050** TACT SWITCH B3F-1050