Sony SLV-662HF Operating Instructions (SLV-662HF / 679HF / 679HF PX VCR), Service Manual

Page: 3 / 72

— 3 —
TABLE OF CONTENTS
SERVICE NOTE
1. ERROR CODE INDICATION ··········································· 4
1. GENERAL
Index to parts and controls ························································ 1-1
Step 1 Unpacking ······································································ 1-2
Step 2 Setting up the remote commander ·································· 1-2
Step 3 Hookups ········································································· 1-3
Selecting a language ·································································· 1-7
Setting the clock ········································································ 1-7
Presetting channels ···································································· 1-9
Setting up the VCR Plus+ system ············································ 1-11
Playing a tape ·········································································· 1-12
Recording TV programs ·························································· 1-13
Recording TV programs using the VCR Plus+ system ··········· 1-13
Setting the timer manually ······················································ 1-14
Playing/searching at various speeds ········································ 1-15
Setting the recording duration time ········································· 1-15
Checking/changing/canceling timer settings ··························· 1-16
Recording stereo and bilingual programs ································ 1-16
Adjusting the picture ······························································· 1-17
Changing menu options ··························································· 1-17
Editing with another VCR ······················································· 1-17
General setup information ······················································· 1-18
Troubleshooting ······································································· 1-18
2. DISASSEMBLY
2-1. UPPER CASE, PANEL BLOCK ASSEMBLY ·················· 1
2-2. DS-84 BOARD ··································································· 1
2-3. REAR PANEL ···································································· 2
2-4. MA-341 BOARD ······························································· 2
2-5. MECHANISM DECK ························································ 3
2-6. INTERNAL VIEWS ··························································· 4
2-7. CIRCUIT BOARDS LOCATION ······································ 5
3. BLOCK DIAGRAMS
3-1. OVERALL BLOCK DIAGRAM ···································· 3-1
3-2. VIDEO BLOCK DIAGRAM ·········································· 3-3
3-3. SERVO/SYSTEM CONTROL BLOCK DIAGRAM ····· 3-5
3-4. AUDIO/TUNER BLOCK DIAGRAM ··························· 3-7
3-5. POWER BLOCK DIAGRAM ········································· 3-9
4. PRINTED WIRING BOARDS AND
SCHEMATIC DIAGRAMS
4-1. FRAME SCHEMATIC DIAGRAM ································ 4-3
4-2. PRINTED WIRING BOARDS AND SCHEMATIC
DIAGRAMS ···································································· 4-5
• MA-341(1/7) (VIDEO)
SCHEMATIC DIAGRAMS ······················· 4-5
• MA-341(2/7) (AUDIO)
SCHEMATIC DIAGRAMS ······················· 4-7
• MA-341(3/7) (SERVO/SYSTEM CONTROL)
SCHEMATIC DIAGRAMS ······················· 4-9
• MA-341(4/7) (AUDIO PROCESS)
SCHEMATIC DIAGRAMS ····················· 4-11
• MA-341(5/7) (TUNER)
SCHEMATIC DIAGRAMS ····················· 4-13
• MA-341(6/7) (MODE CONTROL)
SCHEMATIC DIAGRAMS ····················· 4-15
• MA-341(7/7) (POWER SUPPLY)
SCHEMATIC DIAGRAMS ····················· 4-17
• MA-341 (VIDEO, AUDIO, SERVO/SYSTEM
CONTROL, TUNER, POWER SUPPLY)
PRINTED WIRING BOARD ·················· 4-19
• DS-84 (TAPE OPARATION)
SCHEMATIC DIAGRAMS ····················· 4-22
• DS-84 (TAPE OPERATION)
PRINTED WIRING BOARD ·················· 4-22
5. INTERFACE, IC PIN FUNCTION
DESCRIPTION
5-1. SYSTEM CONTROL –
MECHANISM BLOCK INTERFACE
(MA-341 BOARD IC160) ··············································· 5-1
5-2. SYSTEM CONTROL –
SERVO PERIPHERAL CIRCUIT INTERFACE
(MA-341 BOARD IC160) ··············································· 5-1
5-3. SYSTEM CONTROL –
SYSTEM CONTROL PERIPHERAL
CIRCUIT INTERFACE (MA-341 BOARD IC160) ······· 5-2
5-4. SYSTEM CONTROL AND RF MODULATOR –
INPUT SELECTION BLOCK INTERFACE
(MA341 BOARD IC160) ················································ 5-2
5-5. SYSTEM CONTROL – VIDEO/RP BLOCK INTERFACE
(MA-341 BOARD IC160) ··············································· 5-2
5-6. SYSTEM CONTROL – AUDIO BLOCK INTERFACE
(MA-341 BOARD IC160) ··············································· 5-2
5-7. SERVO/SYSTEM CONTROL MICROPROCESSOR
PIN FUNCTIONS (MA-341 BOARD IC160) ················ 5-3
6. ADJUSTMENTS
6-1 MECHANICAL ADJUSTMENTS ································· 6-1
6-2. ELECTRICAL ADJUSTMENTS ··································· 6-1
1. PREPARATION BEFORE ADJUSTMENT ··················· 6-1
1-1. Equipment Required ························································ 6-1
1-2. Equipment Connection ···················································· 6-1
1-3. Set-up of Adjustment ······················································· 6-1
1-4. Alignment Tape ······························································· 6-1
1-5. Input/Output Levels and Impedance ······························· 6-2
1-6. Adjustment Sequence ······················································ 6-2
2. POWER SUPPLY CHECK ············································· 6-2
2-1. Output Voltage Check (MA-341 Board) ························· 6-2
3. SERVO SYSTEM CHECK ············································· 6-3
3-1. RF Switching Position Adjustment (MA-341 Board) ····· 6-3
4. AUDIO SYSTEM ADJUSTMENT ································· 6-3
4-1. Hi-Fi Audio System Adjustment (Hi-Fi model only) ······ 6-3
4-2. HiFi Switching Position Adjustment (MA-341 Board) ··· 6-4
4-3. Normal Audio System Adjustment ·································· 6-4
4-3-1. ACE Head Adjustment ···················································· 6-4
4-3-2. E-E Output Level Check ················································· 6-4
4-3-3. Frequency Response Check ············································· 6-4
5.
ADJUSTING PARTS LOCATION DIAGRAM ············· 6-6
7. REPAIR PARTS LIST
7-1. EXPLODED VIEWS ······················································ 7-1
7-1-1. FRONT PANEL AND UPPER CASE SECTION ·········· 7-1
7-1-2. CHASSIS SECTION ······················································· 7-2
7-1-3. MECHANISM DECK SECTION-1 ······························· 7-3
7-1-4. MECHANISM DECK SECTION-2 ······························· 7-4
7-1-5. MECHANISM DECK SECTION-3 ······························· 7-5
7-2.
ELECTRICAL PARTS LIST ·········································· 7-6