Table of Contents
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1.
ERROR CODE INDICATION ··········································· 4
1.
Index to parts and controls ························································ 1-1
Step 1 Unpacking ······································································ 1-2
Step 2 Setting up the remote commander ·································· 1-3
Step 3 Hookups ········································································· 1-3
Selecting a language ·································································· 1-7
Setting the clock ········································································ 1-8
Presetting channels ···································································· 1-9
Playing a tape ·········································································· 1-11
Recording TV programs ·························································· 1-12
Recording TV programs using the timer ································· 1-12
Playing/searching at various speeds ········································ 1-13
Searching for a selected point on the tape ······························· 1-14
Skip-searching automatically ·················································· 1-15
Recording TV programs using the dial timer ·························· 1-15
Setting the recording duration time ········································· 1-16
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 ······················································· 1-18
General setup information ······················································· 1-18
Troubleshooting ······································································· 1-19
2.
2-1. UPPER CASE, PANEL BLOCK ASSEMBLY ··············· 2-1
2-2. DS-84, DI-70, JK-168 BOARDS ···································· 2-1
2-3. REAR PANEL ································································· 2-2
2-4. MA-341 BOARD ···························································· 2-2
2-5. MECHANISM DECK ····················································· 2-3
2-6. INTERNAL VIEWS ························································ 2-4
2-7. CIRCUIT BOARDS LOCATION ··································· 2-5
3.
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.
4-1. FRAME SCHEMATIC DIAGRAM ································ 4-3
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/SYSCON)
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 (VUDEO, AUDIO, SERVO/SYSTEM
CONTROL, TUNER, POWER SUPPLY)
PRINTED WIRING BOARD ············ 4-19
TABLE OF CONTENTS
• DI-70 (DIAL TIMER SWITCH)
• DI-70 (DIAL TIMER SWITCH)
• DS-84 (TAPE OPERATION)
• DS-84 (TAPE OPERATION)
• JK-168 (LINE IN) PRINTED WIRING BOARD ····· 4-25
• JK-168 (LINE IN) SCHEMATIC DIAGRAMS ········ 4-25
• AR-20 (ARC) PRINTED WIRING BOARD ············ 4-27
• AR-20 (ARC) SCHEMATIC DIAGRAMS ··············· 4-28
5.
INTERFACE (MA-341 BOARD IC160) ························ 5-1
CIRCUIT INTERFACE (MA-341 BOARD IC160) ······· 5-2
(MA-341 BOARD IC160) ··············································· 5-3
(MA-341 BOARD IC160) ··············································· 5-3
FACE (MA-341 BOARD IC160) ···································· 5-3
(MA-341 BOARD IC160) ··············································· 5-3
FUNCTIONS (MA-341 BOARD IC160) ······················· 5-4
6.
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
4.
AUDIO SYSTEM ADJUSTMENT ································· 6-3
(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.
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
- 3 -
PRINTED WIRING BOARD ············ 4-22
SCHEMATIC DIAGRAMS ·············· 4-22
PRINTED WIRING BOARD ············ 4-23
SCHEMATIC DIAGRAMS ·············· 4-23
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