Table Of Contents - Sony SLV-777HF Service Manual

SERVICE NOTE
1. ERROR CODE INDICATION ··········································· 6
2. HOW TO REPLACE A ROTARY UPPER DRUM
(777HF, 778HF MODEL) ·················································· 7
2-1. HOW TO REMOVE A ROTARY UPPER DRUM ············ 7
2-2. HOW TO ATTACH A NEW ROTARY
UPPER DRUM ··································································· 7
1. GENERAL
Getting Started
Unpacking ·············································································· 1-1
Setting up the remote commander ········································· 1-1
Hookups ················································································· 1-1
Selecting a language ······························································ 1-7
Setting the clock ···································································· 1-7
Setting up cable box control ·················································· 1-9
Presetting channels ······························································ 1-10
Setting up VCR Plus+ ·························································· 1-11
Basic Operations
Playing a tape ······································································· 1-12
Recording TV programs ······················································ 1-13
Recording TV programs using VCR Plus+ ························· 1-14
Setting the timer manually ··················································· 1-14
Additional Operations
Playing/searching at various speeds ···································· 1-15
Searching for a selected point on the tape ··························· 1-16
Skip-searching automatically ··············································· 1-16
Recording TV programs using the quick timer ··················· 1-16
Checking/changing/cancelling timer settings ······················ 1-17
Recording stereo and bilingual programs ···························· 1-17
Adjusting the picture ··························································· 1-18
Changing menu options ······················································· 1-18
Editing with another VCR ··················································· 1-18
Additional Information
General setup information ··················································· 1-19
Index to parts and controls ··················································· 1-19
2. DISASSEMBLY
2-1. UPPER CASE,
FRONT PANEL BLOCK ASSEMBLY ·························· 2-1
2-2. FR-138 BOARD, DM-80 BOARD ································· 2-1
2-3. REAR PANEL ································································· 2-1
2-4. POWER BLOCK, MA-327 BOARD (WITH S
MECHANISM DECK) ··················································· 2-2
2-5. S MECHANISM DECK ················································· 2-2
2-6. INTERNAL VIEWS ························································ 2-3
2-7. CIRCUIT BOARDS LOCATION ··································· 2-4
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 BLOCK DIAGRAM ·········································· 3-7
3-5. MODE CONTROL BLOCK DIAGRAM ······················· 3-9
3-6. TUNER BLOCK DIAGRAM ······································· 3-11
3-7. POWER SUPPLY BLOCK DIAGRAM ······················· 3-13
4. PRINTED WIRING BOARDS AND
SCHEMATIC DIAGRAMS
4-1. FRAME SCHEMATIC DIAGRAM ································ 4-1
4-2. PRINTED WIRING BOARDS AND
SCHEMATIC DIAGRAMS ············································ 4-3
• MA-327 (REC/PB AMP, VIDEO, SERVO/SYSTEM
CONTROL, AUDIO, TUNER)
PRINTED WIRING BOARD ························· 4-3
• MA-327 (REC/PB AMP)
SCHEMATIC DIAGRAM ······························ 4-5

TABLE OF CONTENTS

• MA-327 (VIDEO, NORMAL AUDIO)
• MA-327 (SERVO/SYSTEM CONTROL)
• MA-327 (ON SCREEN DISPLAY)
• MA-327 (AFM AUDIO)
• MA-327 (TUNER)
• MA-327 (POWER SUPPLY, AV BUS)
• FR-138 (MODE CONTROL)
• FR-138 (MODE CONTROL)
• DM-80 (OPERATION SWITCHES)
• JK-162 (LINE-2 IN)
• POWER BLOCK SR801 (SWITCHING REGULATOR)
• POWER BLOCK SR709 (SWITCHING REGULATOR)
5. INTERFACE,
IC PIN FUNCTION DESCRIPTION
5-1. SYSTEM CONTROL -
MECHANISM BLOCK INTERFACE
(MA-327 BOARD IC160) ··············································· 5-1
5-2. SYSTEM CONTROL -
SERVO PERIPHERAL CIRCUIT INTERFACE
(MA-327 BOARD IC160) ··············································· 5-1
5-3. SYSTEM CONTROL - SYSTEM CONTROL
PERIPHERAL CIRCUIT INTERFACE
(MA-327 BOARD IC160) ··············································· 5-2
5-4. SYSTEM CONTROL AND RF MODULATOR-
INPUT SELECTION BLOCK INTERFACE
(MA-327 BOARD IC160) ··············································· 5-2
5-5. SYSTEM CONTROL -
VIDEO/RP BLOCK INTERFACE
(MA-327 BOARD IC160) ··············································· 5-2
5-6. SYSTEM CONTROL -
AUDIO BLOCK INTERFACE
(MA-327 BOARD IC160) ··············································· 5-2
5-7. SERVO/SYSTEM CONTROL MICROPROCESSOR
(MA-327 BOARD IC160) ··············································· 5-3
6. ADJUSTMENTS
6-1 MECHANICAL ADJUSTMENTS ································· 6-1
6-2. ELECTRICAL ADJUSTMENTS ··································· 6-1
2-1. PREPARATION BEFORE ADJUSTMENT ··················· 6-1
2-1-1. Equipment Required ························································ 6-1
2-1-2. Equipment Connection ···················································· 6-1
2-1-3. Input Signal Check ·························································· 6-1
2-1-4. Alignment Tape ······························································· 6-1
2-1-5. Input/Output Levels and Impedance ······························· 6-2
2-1-6. Adjustment Sequence ······················································ 6-2
2-2. POWER SUPPLY CHECK ············································· 6-2
2-2-1. Output Voltage Check (MA-327 Board) ························· 6-2
2-3. SERVO SYSTEM CHECK ············································· 6-3
2-3-1. RF Switching Position/
AF Switching Position Adjustments (MA-327 Board) ··· 6-3
- 4 -
SCHEMATIC DIAGRAM ······························ 4-8
SCHEMATIC DIAGRAM ···························· 4-11
SCHEMATIC DIAGRAM ···························· 4-15
SCHEMATIC DIAGRAM ···························· 4-17
SCHEMATIC DIAGRAM ···························· 4-19
SCHEMATIC DIAGRAM ···························· 4-21
PRINTED WIRING BOARD ······················· 4-23
SCHEMATIC DIAGRAM ···························· 4-25
PRINTED WIRING BOARD AND
SCHEMATIC DIAGRAM ···························· 4-27
PRINTED WIRING BOARD AND
SCHEMATIC DIAGRAM ···························· 4-28
PRINTED WIRING BOARD AND
SCHEMATIC DIAGRAM ···························· 4-29
PRINTED WIRING BOARD AND
SCHEMATIC DIAGRAM ···························· 4-31