Read Sony CFD-V77S (serv.man2) Service Manual online
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SECTION 1
ADJUSTMENT
Notes on Check
1.
Perform the traverse check in the CD test mode.
After check, be sure to exit the test mode.
After check, be sure to exit the test mode.
2.
Perform check in the order given.
3.
Use the disc (YEDS-18, Parts No. 3-702-101-01) only when
so indicated.
so indicated.
Before Check
Put the set into test mode and perform the following checks.
Repair if there are any problems.
Repair if there are any problems.
• Sled Motor Check
Press > , . keys and confirm that the Optical pick-up moves
smoothly from the innermost to outermost circumference and back
smoothly and with no catching or abnormal noises.
(Cancellation of BTL mute)
> : Optical pick-up moves to the outer circumference.
. : Optical pick-up moves to the inner circumference.
Press > , . keys and confirm that the Optical pick-up moves
smoothly from the innermost to outermost circumference and back
smoothly and with no catching or abnormal noises.
(Cancellation of BTL mute)
> : Optical pick-up moves to the outer circumference.
. : Optical pick-up moves to the inner circumference.
•
Focus Search Check
1.
Press the CD u key. (Focus search operation is performed
continuously.)
continuously.)
2.
Look at the Optical pick-up objective lens and confirm that it
moves up and down smoothly, with no catching or abnormal
noises.
moves up and down smoothly, with no catching or abnormal
noises.
3.
Press x button.
Confirm that focus search operation stops. If it does not, press
x button again longer.
Confirm that focus search operation stops. If it does not, press
x button again longer.
How to Enter the Set into Test Mode
1.
Set the function switch to power off.
2.
Set the function switch to CD while MODE key and > key
pressing.
The set is into CD test mode (
pressing.
The set is into CD test mode (
88 is displayed).
3.
Turn the power off to release test mode.
How to Exit the Test Mode
Turn the POWER OFF.
CD SECTION
(Page 14,15) : Changed portion
1. ADJUSTMENT
································································· 2
2. DIAGRAMS
2-1. Block Diagram ································································ 4
2-2. Printed Wiring Board ······················································ 7
2-3. Schematic Diagram Audio Section ··························· 11
2-4. Schematic Diagram CD Section ······························· 15
2-5. Schematic Diagram Tuner Section ··························· 19
2-6. IC Pin Function Description ········································· 21
2-7. IC Block Diagrams ······················································· 24
2-2. Printed Wiring Board ······················································ 7
2-3. Schematic Diagram Audio Section ··························· 11
2-4. Schematic Diagram CD Section ······························· 15
2-5. Schematic Diagram Tuner Section ··························· 19
2-6. IC Pin Function Description ········································· 21
2-7. IC Block Diagrams ······················································· 24
3. EXPLODED VIEWS
······················································ 26
4. ELECTRICAL PARTS LIST
······································· 28
(Page 1) :Changed portion
CAUTION
Use of controls or adjustments or performance of procedures
other than those specified herein may result in hazardous radiation
exposure.
other than those specified herein may result in hazardous radiation
exposure.
Model Name Using Similar Mechanism
CFD-V17
CD
CD Mechanism Type
KSM-880DAA
Section
Optical Pick-up Name
———
Tape deck
Model Name Using Similar Mechanism
CFD-V17
Section
Tape Transport Mechanism Type
MF-V10-117
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