Sherwood RX-772 Manuel d'utilisateur

RX-772STEREO RECEIVER- SPECIFICATION - TROUBLESHOOTING- BLOCK DIAGRAM - MECHANICAL PARTS LIST- WIRING DIAGRAM - EXPLODED VIEW- LEVEL DIAGRAM - ELECTRI

2. Block Diagram

3. Pin FunctionNo. Pin Name Pin Symbol I/O Pin Description1 P120/INTP0/EXLVI PROTECTION I Input for protection2 P43 ST/BY_RLY O Output for standby re

1. Electrical specification. Local OSC Frequency cover range Standard supply voltage FM Antenna input Impedance AM Loop Antenna 2. Electrical Charact

Ref No.Power On Failure A) AC-Cord check. 1. FLT does not light up. B) Power Trans (Main/ST-BY) check. 2. ST-BY LED does not light up. C) Fuse's

Ref No.AMP Sound Dead. A) Signal Mute TR's inferior. Q 352( L, R), Q318(L, R) 1. "LEFT" Channel dead. B) Connector disconnection &

★ MECHANICAL PARTS LIST (RX-772) ♣ Parts without Parts No. are not supplied.No. DESCRIPTION Q'TY PARTS No. VER.PACKAGEINSTRUCTION MANUAL 1 5

No. DESCRIPTION Q'TY PARTS No. VER.15 CHASSIS, MAIN 1 3200210276010S16 FOOT ASS'Y, Titan Stamp 4 4008210221000SZ G-T/K-TFOOT ASS'Y, Gol

EXPLODED VIEWModel : RX-772PCB2(FRONT)PCB3(INPUT)PCB1(MAIN)

★ ELECTRICAL PARTS LIST (RX-772) ♣ Parts without Parts NO are not supplied. REF No. Q'TY PARTS No. VER.PCB1 ASSEMBLY P.C.BOARD MAIN 7025HK06

REF No. Q'TY PARTS No. VER.DESCRIPTION C325L/R CERAMIC HIK DISC 100 pF 50V K 2 D004101277050S C326L/R CERAMIC HIK DISC 100 pF 50V K 2 D00410127

Measuring methods are based on IHF and IEC standard 268-3Measurements conditions, unless otherwise noted : Output resistive load = (8) ohms / Both

REF No. Q'TY PARTS No. VER.DESCRIPTION D135/D136 1SS133T, SWITCHING 2 K000013300520S D201-D203 1SS133T, SWITCHING 3 K000013300520S D301L/R 1SS1

REF No. Q'TY PARTS No. VER.DESCRIPTION Q316L/R KTC2875B(MB), NPN 2 J5222875B0010S Q317L/R KTA1268BL, PNP 2 J5001268B0050S Q318L/R KTC2875B(MB),

REF No. Q'TY PARTS No. VER.DESCRIPTION R254 CARBON FILM 10 ohm 1/5W J 1 C00001006P520S R255 CHIP THICK 22 kohm 1/16W J 1 C20002236M160S R256-R2

REF No. Q'TY PARTS No. VER.DESCRIPTION R348L/R CHIP THICK 47 kohm 1/16W J 2 C20004736M160S R349L/R CARBON FILM 22 ohm 1/5W J 2 C00002206P520S R

REF No. Q'TY PARTS No. VER.DESCRIPTION F501 FUSE CLIP 1 G645000050010S F501B FUSE CLIP 1 G645000050010S FPC101 CN.FPC 1.25MM (21P) 1 L131112100

REF No. Q'TY PARTS No. VER.DESCRIPTION JK105 TER,RCA 2PIN 1 G601207AEG11YS JK301 TER,BOARD SCREW 8P 1 G614081T3600AS JK601 TER,RCA 4PIN 1 G6024

REF No. Q'TY PARTS No. VER.DESCRIPTION C404 CERAMIC CHIP HIK 0.1 uF 50V Z 1 D011104597160S C405 CERAMIC CHIP HIK 0.01 uF 50V K 1 D011103777160S

REF No. Q'TY PARTS No. VER.DESCRIPTION SW501 SW,PUSH 1 G000122006060S PCB3 ASSEMBLY P.C.BOARD INPUT 7025HK0606022 G PCB3 ASSEMBLY P.C.BOARD INP

REF No. Q'TY PARTS No. VER.DESCRIPTION Q401L/R KTC2875B(MB), NPN 2 J5222875B0010S R101L/R CHIP THICK 470 ohm 1/16W J 2 C20004716M160S R102L/R C

P31TxDVSSFLMD0P32RxDRESETVDDEXCLKSCHEMATIC DIAGRAMS(1)PCB1(MAIN)Model : RX-772PCB1-1(H/P G Only)

DESCRIPTION INPUT FREQ. REMARK UNIT NOMINAL L/R LIMIT L/R TONE CONTROL 100Hz dB ±10±1 ±10±310kHz dB ±10±1 ±10±3IDLE CURRENT NO INPUT LATER 10 MINUTE (

SCHEMATIC DIAGRAMS(2)PCB2(FRONT)Model : RX-772PCB1-2(MIC K-Only)PCB3(INPUT)

SCHEMATIC DIAGRAMS(3)TUNER ASS'Y( RDS Only)Model : RX-772

Model : RX-772SCHEMATIC DIAGRAMS(4)TUNER ASS'Y(K Only)

Measuring methods in confirmity with IEC standard 315Measurements condition FM : Radio frequency = 98.0MHz(RDS), 98.1MHz(K) Audio frequency = 1kHz

● AM SECTIONMeasuring methods in confirmity with IEC standard 315Measurements condition AM - MW : Radio frequency = 1000/999kHz, Audio frequency = 40

BLOCK DIAGRAMModel : RX-772

Model : RX-772WIRING DIAGRAMPOWER TRANSPCB1(MAIN)PCB2(FRONT)PCB1-2MIC K-OnlyPCB1-1H/P G-OnlyPCB2-1POWER S/WPCB3(INPUT)PCB1-3OUTLET G-Only

LEVEL DIAGRAMModel : RX-772

UPD78F0536GK : IC2011. Pin Description64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 491 482 473 464 455 446 437 428 419 4010 3911 3812 3713 3614 3515 3