Read Sony ICF-CD823L Service Manual online
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TABLE OF CONTENTS
1. GENERAL
········································································ 4
2. DISASSEMBLY
2-1. CABINET, LOWER ······················································ 5
2-2. MAIN BOARD ····························································· 6
2-3. PANEL (FRONT) SUB ASSY ······································ 6
2-4. OPTICAL PICK-UP BOLCK (KSM-213CDM) ·········· 7
2-5. TRANSFORMER BOARD ··········································· 7
2-2. MAIN BOARD ····························································· 6
2-3. PANEL (FRONT) SUB ASSY ······································ 6
2-4. OPTICAL PICK-UP BOLCK (KSM-213CDM) ·········· 7
2-5. TRANSFORMER BOARD ··········································· 7
3. TEST MODE ·······························································
8
4. ELECTRICAL ADJUSTMENTS ························
10
5. DIAGRAMS
5-1. BLOCK DIAGRAM ··················································· 11
5-2. CIRCUIT BOARDS LOCATION ······························· 13
5-3. SCHEMATIC DIAGRAM
5-2. CIRCUIT BOARDS LOCATION ······························· 13
5-3. SCHEMATIC DIAGRAM
– MAIN SECTION (1/2) – ·········································· 14
5-4. SCHEMATIC DIAGRAM
– MAIN SECTION (2/2) – ·········································· 17
5-5. PRINTED WIRING BOARD
– MAIN SECTION – ·················································· 20
5-6. PRINTED WIRING BOARD
– PANEL SECTION – ················································· 23
5-7. IC PIN FUNCTION DESCRIPTION ························· 25
5-8. IC BLOCK DIAGRAMS ············································ 26
5-8. IC BLOCK DIAGRAMS ············································ 26
6. EXPLODED VIEWS
6-1. LOWER CABINET SECTION ··································· 29
6-2. UPPER CABINET SECTION ···································· 30
6-3. OPTICAL PICK-UP SECTION
6-2. UPPER CABINET SECTION ···································· 30
6-3. OPTICAL PICK-UP SECTION
(KSM-213CDM) ························································· 31
7. ELECTRICAL PARTS LIST ·································
32
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY MARK
! OR DOTTED
LINE WITH MARK
! ON THE SCHEMATIC DIAGRAMS
AND IN THE PARTS LIST ARE CRITICAL TO SAFE
OPERATION. REPLACE THESE COMPONENTS WITH
SONY PARTS WHOSE PART NUMBERS APPEAR AS
SHOWN IN THIS MANUAL OR IN SUPPLEMENTS
PUBLISHED BY SONY.
OPERATION. REPLACE THESE COMPONENTS WITH
SONY PARTS WHOSE PART NUMBERS APPEAR AS
SHOWN IN THIS MANUAL OR IN SUPPLEMENTS
PUBLISHED BY SONY.
Note on chip component replacement
• Never reuse a disconnected chip component.
• Notice that the minus side of a tantalum capacitor may be dam-
• Never reuse a disconnected chip component.
• Notice that the minus side of a tantalum capacitor may be dam-
aged by heat.
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