Sony ST-SP55 Instrukcja serwisowa - Strona 2
Przeglądaj online lub pobierz pdf Instrukcja serwisowa dla System stereo Sony ST-SP55. Sony ST-SP55 16 stron. Micro hi-fi component system
Drukuj stronę
- 1. 1 Service Note
- 2. 2 General
- 3. 3 Diagrams
- 3. Circuit Boards Location
- 3. Block Diagram
- 3. Schematic Diagram - Main Section
- 3. Printed Wiring Board - Main Section
- 3. Schematic Diagram - Panel Section
- 3. Printed Wiring Board - Panel Section
- 3. IC Pin Functions
- 3. IC Block Diagram
- 3. Table of Contents
- 3. Case and Front Panel
- 4. 4 Exploded View
- 5. 5 Electrical Parts List
www.freeservicemanuals.info
THIS NOTE IS COMMON FOR PRINTED WIRING
BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed
in each block.)
For schematic diagrams.
Note:
• All capacitors are in µF unless otherwise noted. pF: µµF
50 WV or less are not indicated except for electrolytics
and tantalums.
• All resistors are in Ω and
1
/
4
specified.
•
: internal component.
f
• C : panel designation.
Note:
The components identified by mark 0 or
dotted line with mark 0 are critical for
safety.
Replace only with part number specified.
• U : B+ Line.
• V : B– Line.
• H : adjustment for repair.
• no mark : FM
∗
: Can not be measured.
• Voltages are taken with a VOM (Input impedance 10 MΩ).
Voltage variations may be noted due to normal produc-
tion tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal produc-
tion tolerances.
• Circled numbers refer to waveforms.
• Signal path.
F
: FM
J
: CD
d
: TAPE
G
: REC (TAPE/MD)
j
: MD
• Abbreviation
MY
: Malaysia model.
SP
: Singapore model.
HK
: Hong Kong model.
KR
: Korea model.
AED : North European model.
For printed wiring boards.
Note:
• X : parts extracted from the component side.
• Y : parts extracted from the conductor side.
•
: Through hole.
a
• b : Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
• Indication of transistor
C
Q
These are omitted
B
E
B
C
E
These are omitted
4
SECTION 3
DIAGRAMS
W or less unless otherwise
05/28/2012
• WAVEFORMS
– MAIN BOARD –
1
IC701 qa XCOUT
2.7Vp-p
30.5µsec
2
IC701 qd XOUT
4.6Vp-p
100nsec
3-1. CIRCUIT BOARDS LOCATION
tuner unit (FM/AM)
LED board
PANEL board
World of Free Manuals
PIN JACK board
MAIN board