SLV-LX80S - Sony VCR Service Manual (repair manual). Page 3

1.

ERROR CODE INDICATION ........................................... 5

Getting Started ........................................................................... 1-1

Step 2 : Setting up the remote commander ............................. 1-1
Step 3 : Hookups ..................................................................... 1-2
Selecting a language ............................................................... 1-4
Setting the clock ...................................................................... 1-4
Presetting channels .................................................................. 1-6

Basic Operations ........................................................................ 1-7

Playing a tape .......................................................................... 1-7
Recording TV programs .......................................................... 1-8
Recording TV programs using the Dial Timer ........................ 1-9
Recording TV programs using the timer ............................... 1-10

Additional Operations ............................................................. 1-11

Playing/searching at various speeds ...................................... 1-11
Setting the recording duration time ....................................... 1-11
Synchronized Recording ....................................................... 1-12
Checking/changing/canceling timer settings ........................ 1-12
Recording stereo and bilingual programs ............................. 1-13
Searching for the beginning of a timer recorded program .... 1-13
Searching using the index function ....................................... 1-13
Searching using the Time Search function ............................ 1-14
Skip-searching automatically (Quick View) ......................... 1-14
Searching for a selected point on the tape ............................ 1-14
Adjusting the picture ............................................................. 1-15
Changing menu options ........................................................ 1-15
Editing with another VCR ..................................................... 1-16

Additional Information ............................................................ 1-16

General setup information ..................................................... 1-16
Index to parts and controls .................................................... 1-17

2-1.

CASE, FRONT PANEL BLOCK ASSEMBLY .............. 2-1

2-2.

DM-98 BOARD, DI-81 BOARD, FJ-28 BOARD .......... 2-1

2-3.

REAR PANEL ................................................................. 2-2

2-4.

MA-397 BOARD ............................................................ 2-2

2-5.

MECHANISM DECK ..................................................... 2-3

2-6.

INTERNAL VIEWS ........................................................ 2-4

2-7.

CIRCUIT BOARDS LOCATION ................................... 2-5

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.

TUNER BLOCK DIAGRAM ......................................... 3-7

3-5.

AUDIO BLOCK DIAGRAM .......................................... 3-9

3-6.

POWER BLOCK DIAGRAM ....................................... 3-11

4-1.

FRAME SCHEMATIC DIAGRAM ................................ 4-3

4-2.

PRINTED WIRING BOARDS AND SCHEMATIC
DIAGRAMS .................................................................... 4-5
• MA-397 (VIDEO, AUDIO, SERVO/SYSTEM

CONTROL, TUNER, POWER)

PRINTED WIRING BOARD .......................... 4-5

• MA-397 (1/7)(REC/PB HEAD AMP)

SCHEMATIC DIAGRAM ............................... 4-7

• MA-397 (2/7)(Y/C, AUDIO PROCESS)

SCHEMATIC DIAGRAM ............................... 4-9

• MA-397 (3/7)(SERVO/SYSTEM CONTROL)

SCHEMATIC DIAGRAM ............................. 4-11

• MA-397 (4/7)(AUDIO PROCESS)

SCHEMATIC DIAGRAM ............................. 4-13

• MA-397 (5/7)(TUNER)

SCHEMATIC DIAGRAM ............................. 4-15

• MA-397 (6/7)(DISPLAY CONTROL)

SCHEMATIC DIAGRAM ............................. 4-17

• MA-397 (7/7)(POWER SUPPLY)

SCHEMATIC DIAGRAM ............................. 4-19

• FJ-28 (LINE-2 IN)

PRINTED WIRING BOARD AND
SCHEMATIC DIAGRAM ............................. 4-31

• DM-98 (FUNCTION)

PRINTED WIRING BOARD AND
SCHEMATIC DIAGRAM ............................. 4-35

• DI-81 (DIAL TIMER)

PRINTED WIRING BOARD AND
SCHEMATIC DIAGRAM ............................. 4-38

5-1.

SYSTEM CONTROL — MECHANISM BLOCK
INTERFACE (MA-397 BOARD IC160) ........................ 5-1

5-2.

SYSTEM CONTROL — SERVO PERIPHERAL
CIRCUIT INTERFACE (MA-397 BOARD IC160) ....... 5-1

5-3.

SYSTEM CONTROL — SYSTEM CONTROL
PERIPHERAL CIRCUIT INTERFACE
(MA-397 BOARD IC160) ............................................... 5-2

5-4.

SYSTEM CONTROL AND RF MODULATOR
— INPUT SELECTION BLOCK INTERFACE
(MA-397 BOARD IC160) ............................................... 5-2

5-5.

SYSTEM CONTROL — VIDEO/RP BLOCK
INTERFACE (MA-397 BOARD IC160) ........................ 5-2

5-6.

SYSTEM CONTROL — AUDIO BLOCK INTERFACE
(MA-397 BOARD IC160) ............................................... 5-2

5-7.

SERVO/SYSTEM CONTROL MICROPROCESSOR
PIN FUNCTIONS (MA-397 BOARD IC160) ................ 5-3

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. Set-up of Adjustment ....................................................... 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-397  Board) ........................ 6-2
2-3.

SERVO SYSTEM CHECK ............................................. 6-3

2-3-1. RF Switching Position Adjustment (MA-397 Board) ..... 6-3
2-4.

AUDIO SYSTEM ADJUSTMENT ................................. 6-3

2-4-1. Hi-Fi Audio System Adjustment (Hi-Fi model only) ...... 6-3
2-4-2. HiFi Switching Position Adjustment (MA-397 Board) ... 6-4
2-4-3. Normal Audio System Adjustment .................................. 6-4
2-4-4. Audio Level and Distortion Check .................................. 6-4
2-4-5. Audio Noise Check ......................................................... 6-4
2-4-6. ACE Head Adjustment .................................................... 6-4
2-4-7. E-E Output Level Check ................................................. 6-4
2-4-8. Frequency Response Check ............................................. 6-4
2-5.

ADJUSTING PARTS LOCATION DIAGRAM ............. 6-6

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