LG HCD MD1EX Service Manual
HCD-MD1EX
SERVICE MANUAL
HCD-MD1EX is the Amplifier, CD play er ,
Mini disc Deck and Tuner section in
CMT-MD1.
U.S. and foreign patents licensed form Dolby Laboratories
Licensing Corporation.
Section
Section
CD
MD
US Model
Canadian Model
AEP Model
UK Model
E Model
Model Name Using Similar Mechanism HCD-MD333
Base Unit Name BU-22BD19
Optical Pick-up Name KSS-213B/K-N
Model Name Using Similar Mechanism HCD-MD333
Mechanism Name MDM-3J
Optical Pick-up Name KMS-260A/J1N
SPECIFICATIONS
– Continued on next page –
MICROFILM
COMPACT Hi-Fi COMPONENT SYSTEM
7-7. SCHEMATIC DIAGRAM – BD (CD) Section – • See page 77 for Waveforms. • See page 79 for IC Block Diagrams.
HCD-MD1EX
(Page 59)
• Voltages and waveforms are dc with respect to ground
under no-signal conditions.
no mark : STOP
( ) : CD PLAY
The components identified by mark ! or dotted
line with mark ! are critical for safety.
Replace only with part number specified.
: Impossible to measure
∗
– 45 – – 46 –
Les composants identifiés par une marque ! sont
critiques pour la sécurité. Ne les remplacer que
par une piéce portant le numéro spécifié.
7-9. SCHEMATIC DIAGRAM – BD (MD) Section (1/3) – • See page 77 for Waveforms. • See page 82 for IC Block Diagrams.
HCD-MD1EX
(Page 51) (Page 51)
– 49 – – 50 –
• Voltages and waveforms are dc with respect to ground
under no-signal conditions.
no mark : STOP
( ) : MD PLAY
[ ] : MD REC
: Impossible to measure
∗
(Page 52) (Page 52)
The components identified by mark ! or dotted
line with mark ! are critical for safety.
Replace only with part number specified.
Les composants identifiés par une marque ! sont
critiques pour la sécurité. Ne les remplacer que
par une piéce portant le numéro spécifié.
HCD-MD1EX
7-10. SCHEMATIC DIAGRAM – BD (MD) Section (2/3) – • See page 77 for Waveforms. • See page 82 for IC Block Diagrams.
• Voltages and waveforms are dc with respect to ground
under no-signal conditions.
no mark : STOP
( ) : MD PLAY
[ ] : MD REC
: Impossible to measure
∗
(Page 49)
(Page 50)
(Page 50)(Page 49)
(Page
59)
(Page 53)
(Page 53)
(Page 54)
– 51 – – 52 –
7-11. SCHEMATIC DIAGRAM – BD (MD) Section (3/3) – • See page 77 for Waveforms. • See page 82 for IC Block Diagrams.
HCD-MD1EX
(Page 51)
(Page 51)
(Page 52)
(Page 76)
– 53 – – 54 –
• Voltages and waveforms are dc with respect to ground
under no-signal conditions.
no mark : STOP
( ) : MD PLAY
[ ] : MD REC
: Impossible to measure
∗
HCD-MD1EX
7-14. SCHEMATIC DIAGRAM – MAIN Section (1/2) – • See page 78 for Waveforms. • See page 84 for IC Block Diagrams.
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
no mark : FM
: Impossible to measure
∗
(Page 46)
(Page 51)
(Page 61)
(Page 76)
(Page 76)
(Page 61)
– 59 – – 60 –
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