Sony STR-W555 Service Manual
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Sony STR-W555 Service Manual

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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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Summary of Contents for Sony STR-W555

  • Page 1: Service Manual

    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 –...
  • Page 2 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 –...
  • Page 3 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 –...
  • Page 4 STR-W555 5-8. SCHEMATIC DIAGRAM – MAIN (1/2) SECTION – • See page 54 for IC Block Diagrams. (Page 35) (Page 23, 32) (Page 41) (Page 33) (Page 33) (Page 34) (Page 34) – 31 – – 32 –...
  • Page 5 STR-W555 5-9. SCHEMATIC DIAGRAM – MAIN (2/2) SECTION – • See page 29 for Printed Wiring Board. • See page 54 for IC Block Diagrams. (Page 31) (Page 31) (Page 32) (Page 32) (Page 37) (Page 46) (Page 38) (Page 51)

  • Page 6: Schematic Diagram - Av/Mic Section

    5-10. SCHEMATIC DIAGRAM – AV/MIC SECTION – • See page 54 for IC Block Diagrams. (Page 33) (Page 41) (Page 32) (Page 38) – 35 –...
  • Page 7 STR-W555 5-12. SCHEMATIC DIAGRAM – POWER AMP SECTION – (Page 34) (Page 34) (Page 34) (Page 35) – 37 – – 38 –...
  • Page 8 STR-W555 5-12. SCHEMATIC DIAGRAM – DISPLAY SECTION – • See page 54 for IC Block Diagrams. (Page 35) (Page 46) (Page 32) (Page 45) – 41 – – 42 –...
  • Page 9 STR-W555 5-16. SCHEMATIC DIAGRAM – SLIDING PANEL SECTION – • See page 54 for IC Block Diagrams. (Page 33) (Page 42) (Page 41) (Page 33) – 45 – – 46 –...

  • Page 10: Schematic Diagram - Trans Section

    STR-W555 5-19. SCHEMATIC DIAGRAM – TRANS SECTION – (Page 33) – 51 –...

  • Page 11: Ic Block Diagrams

    5-20. IC BLOCK DIAGRAMS • Tuner section IC21 LC72130 PHASE DETECTOR CHARGE PUMP UNLOCK POWER DETECTOR RESET REFERENCE SWALLOW COUNTER DIVIDER 1/16, 1/17 4BITS 12BITS PROGRAMMABLE DRIVER UNIVERSAL DATA SHIFT REGISTER LATCH COUNTER 3 4 5 6 IC41 LA1838 17 16 DECODER RF.
  • Page 12 IC1701 IR3R42 19 18 14 13 PHASE COMPARATOR PHASE PHASE COMPARATOR 2 TRIGGER WAVEFORM SEP. REGULATOR SAMPLE GATE & HOLD MUTE BUFFER IC1702 MC14053BCP IC1751 NJM4558D A OUT B.COM B OUT OPEN – A IN– A.COM + – A IN+ B IN–...
  • Page 13 • 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/...
  • Page 14 • Display section IC505 MC14053BCP B.COM OPEN A.COM C.COM OPEN OPEN IC506 BA3833F RESET 18 RESET 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...

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