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5-6.
SERVO/SYSTEM CONTROL
MICROPROCESSOR PIN FUNCTION
(MA-306 BOARD IC161) ··············································· 5-3
MICROPROCESSOR PIN FUNCTION
(MA-306 BOARD IC161) ··············································· 5-3
5-7.
TIME/TUNER CONTROL
MICROPROCESSOR PIN FUNCTION
(HI-56 BOARD IC301) ··················································· 5-4
MICROPROCESSOR PIN FUNCTION
(HI-56 BOARD IC301) ··················································· 5-4
5-8.
SR CONTROL LINE SPECIFICATION ························ 5-5
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.
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-306 Board) ························· 6-2
2-3.
2-3.
SERVO SYSTEM CHECK ············································· 6-3
2-3-1. RF Switching Position/
AF Switching Position Adjustments(MA-306 Board) ···· 6-3
2-4.
VIDEO SYSTEM CHECKS AND ADJUSTMENT ······· 6-4
2-4-1. X’tal OSC Check (MA-306 Board) ································· 6-4
2-4-2. SYNC AGC Check (MA-306 Board) ······························ 6-4
2-4-3. White Clip/Dark Clip Check (MA-306 Board) ··············· 6-4
2-4-4. Recording Y Level Check (MA-306 Board) ··················· 6-5
2-4-5. Recording Chroma Level Check(MA-306 Board) ·········· 6-5
2-4-6. Playback Level Check (MA-306 Board) ························· 6-5
2-4-7. VCO Frequency Adjustment (MA-306 Board) ··············· 6-5
2-5.
2-4-2. SYNC AGC Check (MA-306 Board) ······························ 6-4
2-4-3. White Clip/Dark Clip Check (MA-306 Board) ··············· 6-4
2-4-4. Recording Y Level Check (MA-306 Board) ··················· 6-5
2-4-5. Recording Chroma Level Check(MA-306 Board) ·········· 6-5
2-4-6. Playback Level Check (MA-306 Board) ························· 6-5
2-4-7. VCO Frequency Adjustment (MA-306 Board) ··············· 6-5
2-5.
AUDIO SYSTEM ADJUSTMENT ································· 6-5
2-5-1. ACE Head Adjustment ···················································· 6-6
2-5-2. E-E Output Level Check ················································· 6-6
2-5-3. Overall Output Level and Distortion Factor Check ········· 6-6
2-5-4. Overall Noise Level Check ············································· 6-6
2-6.
2-5-2. E-E Output Level Check ················································· 6-6
2-5-3. Overall Output Level and Distortion Factor Check ········· 6-6
2-5-4. Overall Noise Level Check ············································· 6-6
2-6.
ADJUSTING PARTS LOCATION DIAGRAM ············· 6-8
7.
REPAIR PARTS LIST
7-1.
EXPLODED VIEWS ······················································ 7-1
7-1-1. FRONT PANEL ASSEMBLY AND
UPPER CASE SECTION ··············································· 7-1
7-1-2. CHASSIS SECTION ······················································· 7-2
7-1-3. MECHANISM DECK-1 ················································· 7-3
7-1-4. MECHANISM DECK-2 ················································· 7-4
7-1-5. MECHANISM DECK-3 ················································· 7-5
7-2.
7-1-3. MECHANISM DECK-1 ················································· 7-3
7-1-4. MECHANISM DECK-2 ················································· 7-4
7-1-5. MECHANISM DECK-3 ················································· 7-5
7-2.
ELECTRICAL PARTS LIST ·········································· 7-6
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