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STR-W555 SERVICE MANUAL AEP Model UK Model E Model Australian Model Chinese Model Tourist Model STR-W555 is the tuner and amplifier section in MHC-W555. Photo : E model SPECIFICATIONS FM STEREO/FM-AM RECEIVER MICROFILM – 1 –...
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STR-W555 5-3. SCHEMATIC DIAGRAM – TUNER SECTION – (AEP, UK model) • See page 22 for Waveforms. • See page 52 for IC Block Diagrams. (Page 32) – 23 – – 24 –...
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STR-W555 5-6. SCHEMATIC DIAGRAM – TUNER SECTION – (East European, CIS model) • See page 14 for Waveforms. • See page 53 for IC Block Diagrams. (Page 32) – 27 – – 28 –...
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IC1701 IR3R42 19 18 14 13 PHASE COMPARATOR PHASE PHASE COMPARATOR 2 TRIGGER WAVEFORM SEP. REGULATOR SAMPLE GATE MUTE & HOLD BUFFER IC1702 MC14053BCP IC1751 NJM4558D A OUT B.COM B OUT OPEN – A IN– A.COM + – A IN+ B IN–...
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• Main (1/2) section IC401 M65850P IC402 MC14053BCP B.COM OPEN A.COM OSCILLATOR LPF2 C.COM 1/2 VCC OPEN CLOCK AUTO MAIN 20KBIT RESET RESET CONTROL SRAM OPEN LPF1 • Main (2/2) section IC851 uPC1237HA IC112 MC14052BCP OVER LOAD DET MUTE 2XCOM OFFSET DET XCOM LATCH/...
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• Display section IC505 MC14053BCP B.COM OPEN A.COM C.COM OPEN OPEN IC506 BA3833F RESET RESET 18 RESET REFFERENCE PREF 17 f01 CURRENT LINE 16 f02 LINE 15 f03 BIAS 13 f Bias 12 VCC 11 NC 10 NC • Panel/Motor section IC891 LB1641 T.S.D O.C.P...