SLV-SE85B, SLV-SE85NP, SLV-SE85UX, SLV-SE85VC, SLV-SF90B, SLV-SF90EX, SLV-SF90NP, SLV-SF90UX, SLV-SF90VC, SLV-SF99B, SLV-SF99EN, SLV-SF99NP, SLV-SF99UX, SLV-SF99VC - Sony VCR Service Manual (repair manual). Page 4

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5-3.

SYSTEM CONTROL —
MECHANISM INTERFACE
(MA-359 BOARD IC160) ··············································· 5-2

5-4.

SYSTEM CONTROL —
SYSTEM CONTROL PERIPHERAL CIRCUIT
INTERFACE (MA-359 BOARD IC160) ························ 5-2

5-5.

SYSTEM CONTROL —
AUDIO BLOCK INTERFACE
(MA-359 BOARD IC160) ··············································· 5-2

5-6.

SERVO/SYSTEM CONTROL MICROPROCESSOR
PIN FUNCTIONS (MA-359 BOARD IC160) ················ 5-3

5-7.

TUNER/TIMER MODE CONTROL PIN FUNCTION
(FR-161 BOARD IC180) ················································ 5-4

6-1.

MECHANICAL ADJUSTMENT ··································· 6-1

6-2.

ELECTRICAL ADJUSTMENT ······································ 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. Setup for 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. Power Supply Voltage Check (MA-359 board) ··············· 6-2
2-3.

SYSTEM CONTROL SYSTEM ADJUSTMENT ·········· 6-3

2-3-1. Clock Adjustment (FR-161 board) ·································· 6-3
2-4.

SERVO SYSTEM ADJUSTMENT ································· 6-3

2-4-1. RF Switching Position Adjustment (MA-359 board) ······ 6-3
2-4-2. Hi-Fi Switching Position Adjustment (MA-359 board) ·· 6-3
2-5.

VIDEO SYSTEM CHECK ············································· 6-4

2-5-1. Playback Level Check (MA-359 board) ·························· 6-4
2-5-2. Sync AGC Check (MA-359 board) ································· 6-4
2-5-3. Deviation Check (MA-359 board) ··································· 6-4
2-5-4. DNR Y Level Adjustment (NR-15 board)

(SLV-SF99 model only. (Except B model)) ···················· 6-5

2-5-5. DNR C Level Adjustment (NR-15 board)

(SLV-SF99 model only. (Except B model)) ···················· 6-5

2-6.

AUDIO SYSTEM ADJUSTMENT ································· 6-5

2-6-1. Hi-Fi Audio System Check ·············································· 6-5
1.

E-E Output Level Check ················································· 6-5

2.

Overall Level Characteristics Check ······························· 6-5

2-6-2. Normal Audio System Adjustment ·································· 6-6
1.

ACE Head Adjustment ···················································· 6-6

2.

Frequency Response Check ············································· 6-6

7-1.

EXPLODED VIEWS ······················································ 7-1

7-1-1. FRONT PANEL AND UPPER CASE SECTION ·········· 7-1
7-1-2. CHASSIS SECTION ······················································· 7-3
7-1-3. MECHANISM DECK SECTION-1 ······························· 7-4
7-1-4. MECHANISM DECK SECTION-2 ······························· 7-5
7-1-5. MECHANISM DECK SECTION-3 ······························· 7-6
7-2.

ELECTRICAL PARTS LIST ·········································· 7-7