Sony HCD-V919AV User manual
MICROFILM
SERVICE MANUAL
MINI Hi-Fi COMPONENT SYSTEM
E Model
Chinese Model
SPECIFICATIONS
HCD-V919AV
This stereo system is equipped with the Dolby B-
type noise reduction system and Dolby Pro Logic
Surround decoder*.
* Manufactured under license from Dolby Labora-
tories Licensing Corporation.
DOLBY, the double-D symbol aand“PRO LOGIC”
aretrademarksofDolbyLaboratoriesLicensingCor-
poration.
HCD-V919AV is the Amplifier, Video CD
player, Tape Deck and Tuner section in
MHC-V919AV.
Model Name Using Similar Mechanism HCD-V717
CD Mechanism Type CDM38L-5BD24AL
Base Unit Name BU-5BD24AL
Optical Pick-up Name KSS-213D/Q-NP
Model Name Using Similar Mechanism HCD-V717
Tape Transport Mechanism Type TCM-230AWR1/
230PWR1
CD
Section
Tape
Deck
Section
– Continued on next page –
HCD-V919AV
– 39 – – 40 –
• Voltages and waveforms are dc with respect to ground in
CD play mode.
no mark : CD stop
( ) : CD play
7-9. SCHEMATIC DIAGRAM – BD Section – • See page 86 forWaveforms. •See page 90 and 91 for IC Block Diagrams.
The components identified by mark !or dotted
line with mark !are critical for safety.
Replaceonly with partnumberspecified.
(Page 43)
HCD-V919AV
– 43 – – 44 –
7-11. SCHEMATIC DIAGRAM – VIDEO Section (1/2) – •See page 91 for IC Block Diagram.
(Page 39)
(Page 45)
(Page 62)
• Voltages and waveforms are dc with respect to ground in
VIDEO CD play mode.
no mark : VIDEO CD play
*Note
When replacing IC502, refer to “IC502 of
VIDEOboard” in “ServicingNotes”(page4).
HCD-V919AV
– 45 – – 46 –
7-12. SCHEMATIC DIAGRAM – VIDEO Section (2/2) – • See page 86 to 88 forWaveforms. •See page 91 for IC Block Diagram.
(Page 43)
HCD-V919AV
– 49 – – 50 –
7-14. SCHEMATIC DIAGRAM – CD MOTOR Section – • See page 92 for IC Block Diagrams.
(Page 62)
(Page 62)
MAIN BOARD
CN104
MAIN BOARD
CN103
F
HCD-V919AV
7-16. SCHEMATIC DIAGRAM –TAPE DECK Section – • See page 92 for IC Block Diagram.
– 53 – – 54 –
The components identified by mark !or dotted
line with mark !are critical for safety.
Replaceonly with partnumberspecified.
(Page 60)
MAIN BOARD
CN106
HCD-V919AV
7-17. PRINTED WIRING BOARD – LEAF SW Section – • See page 35 for Circuit Boards Location.
7-18. SCHEMATIC DIAGRAM – LEAF SW Section –
(Page 57)
MAIN BOARD
CN107
(Page 60)
MAIN BOARD
CN107
– 55 – – 56 –
HCD-V919AV
– 59 – – 60 –
7-20. SCHEMATIC DIAGRAM – MAIN Section (1/4) –
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
no mark : FM
(Page56)
(Page54)
(Page63) (Page 63) (Page 65)
(Page61)
(Page61)
(Page61)
(Page65)
(Page65)
HCD-V919AV
7-21. SCHEMATIC DIAGRAM – MAIN Section (2/4) – • See page 88 forWaveforms.
– 61 – – 62 –
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
no mark : FM
( ) : CD PLAY
∗: Impossible to measure
(Page60)
(Page60)
(Page60)
(Page65) (Page 65) (Page66) (Page 64) (Page 66)
(Page50)
(Page50)
(Page43)
HCD-V919AV
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
no mark : FM
7-22. SCHEMATIC DIAGRAM – MAIN Section (3/4) – • See page 93 for IC Block Diagrams.
– 63 – – 64 –
(Page59) (Page 59)
(Page65)
(Page65)
(Page65)
(Page62)
(Page85)
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