Hitachi VT-F550E MKII(NA)(VPS) Video cassette recorder
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Model:
VT-F550E MKII(NA)(VPS)
Date:
1997
Category:
Group:
Description:
Manual type:
Service Manual
Pages:
90
Size:
8.91 Mbytes (9347500 Bytes)
Language:
english
Revision:
Manual ID:
4710E
Date:
1997 05 01
Quality:
Scanned document, all readable.
Upload date:
2017 04 16
MD5:
12609b570fef82c73bc8e08cd2d577c9
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2783
Information
CHAPTER 1
GENERALCONTENTS
INFORMATION
SPECIFICATIONS ...
COMPARISON OF FEATURES ...
COMPARISON OF MAIN CONTROL IC s ... TIPS FOR
SERVICING ... TROUBLE
DISPLAY FUNCTION ... How to
Remove the Cassette when a
Malfunction Has Occurred in the M echanism ...
SERVICE MANUAL ABBREVIATION L IS T ...
LEADLESS (CHIP) COMPONENT IDENTIFICATION..Instructions on
Use and Description of New Functions
. 1-1
.
1-2
. 1-4
. 1-5
.1-5
. 1-6
1-7
, 1-9
.
1-12
CHAPTER 2
DISASSEMBLY
- VT- F55XE/F640E/F645E/F650E -
1.Before Starting
Disassembly ...
2.Disassembly M
ethod ...
Parts Hierarchy
Chart ...
Disassembly Procedure Diagrams ...
2-1 .Top cover, front panel, rear panel, RJK board
and US-FL m echanism ...
2-2.Cassette door and
buttons ...
2-3.SHU or LED
board ... 2-4.
Front frame and LCD board ...
2-5.US mechanism/MAS board assembly
and N&A
board ...
2-6.Separation of MAS board from US mechanism
... 2-7.Procedure to remove only the US m echanism ... -
VT-F660E -
1. Before Starting
Disassembly ... 2.Disassembly
M
ethod ... Parts
Hierarchy
Chart ... Disassembly
Procedure Diagrams ...
2-1 .Top cover, front panel, rear panel, bottom cover,
RJK board and US-FL m echanism
... 2-2.Cassette door and
buttons ...
2-3.Front frame, LCJ and F S T
... 2-4. N&A b o a rd
... 2-5.US
mechanism/MAS board assem
bly ... 2-6.Separation of MAS board from US
mechanism ...
2-7.Procedure to remove only the US m echanism ... 2-
Cautions When Reinstalling the US M echanism ... 2-
CHAPTER 3
ELECTRIC CICUIT ADJUSTMENT AND
TROUBLE DISPLAY
Service
Position ...
3-1
-VT-F55XE/F640E/F645E/F650E-
1.Servicing position during electrical adjustm
ent ... 3-1
2.Servicing positions when repairing and
checking
circuits ... 3-1
3. Be careful of electric sh o
cks ... 3-1
Service
Position ...
3-2
- VT-F660E -
1.Servicing position during electrical adjustm
ent ... 3-2
2.Servicing positions when repairing and
checking
circuits ... 3-2
3. Be careful of electric sh o
cks ... 3-2
Electrical Circuit A djustm
ent ... 3-3
1.Test equipment/jigs necessary for adjustment ... 3-3
2.Cautions on adjustm
ent ... 3-3
3.Tips.for adjustm
ent ... 3-3
4.Connections of test equipm
ent ... 3-3
Test Points and Adjustment p o in ts
... 3-4
5.Servo Circuit
Adjustments ... 3-5
5-1 .Switching point adjustm
ent ... 3-5
5-2.X-value adjustm
ent ... 3-5
5-3.Vertical jitter adjustm
ent ... 3-6
5-4.Forward slow tracking preset adjustm ent ... 3-6
5-5.Reverse slow tracking preset adjustm ent ... 3-6
6.Audio Circuit
Adjustment ... 3-7
6-1..Hi-Fi audio playback level c h e c k
... 3-7
6-2.E-E audio level c h e c k
... 3-7
List of Data in EEPROM and Initial
Settings ... 3-8
List of Hidden
Commands ... 3-8
1.Mode setting commands during adjustm ent ... 3-8
2.EEPROM initialization com m
ands ... 3-8
Initial settings of
IC903(EEPROM) ... 3-9
Caution When Replacing IC9()3(EEPROM) ... 3-9
TROUBLE DISPLAY
FUNCTION ... 3-10
Troubleshooting According to Malfunction Display ... 3-11
CHAPTER 4
EXPLODED VIEWS
]
1.CABINET SE
:CTION ... 4-1
2.US-MECHAhJISM (TOP VIEW) SECTION ... 4-3
3.US-MECHAr> JISM (BOTTOM VIEW) SECTION ... 4-4
4.US-FL MECh HANISM
SECTION ... 4-5
CHAPTER 5
REPLACEMENT PARTS LIST
]
1.MECHANISN/I PARTS
LIST ... 5-1
2.ELECTRICA L PARTS L IS T
... 5-2
CHAPTER 6
SCHEMATIC, CIRCUIT BOARD AND BLOCK
DIAGRAMS AND MICROPROCESSOR PIN
FUNCTION TABLES
INTERNAL WIRING DIAG RAM
... 6-1
CONNECTION DIAGRAM
... 6-2
CIRCUIT
SCHEMATIC B0ARD
DIAGRAM
DIAGRAM
LCD DISPLAY (LCD)
[FOR F55XE/F64XE/F650E] ...
6-4 / 6-39
SHUTTLE SWITCH (SHU)
[FOR
F55XE/F650E] ...
6-5 / 6-38
LCJ/JACK (LCJ) [FOR F660E]
... 6-6 / 6-40
FRONT SHUTTLE (FST) [FOR F660E] ... 6-7 / 6-41
CYLINDER
MOTOR ... 6
-8 / -
CAPSTAN
MOTOR ...
6 -8 / -
MECHANISM SENSOR (M AS) ...
6-9 / 6-28
LED (LED) [FOR F645E]
... 6-10 / 6-39
MAIN CONTROL (MAS)
... 6-10 / 6-28
JACK (M
AS) ... 6
-1 2/6 -28
SWITCHING REGULATOR(MAS) ... 6 -1 6/6 -28
PRE AMP/FM A U D IO (M A S
) ... 6-18 / 6-28
Y/CHROMA, LINEAR AUDIO (M A S ) ... 6-20
/ 6-28
A2 (N&A) [FOR V P S
] ... 6-23 / 6-36
NICAM & A2 (N&A) [EXCPET FOR V P S ] ... 6-24 / 6-36
REAR JACK
(RJK) ...
6-26 / 6-36
WAVEFORMS
SERVO
WAVEFORMS ...
6-9
Y/CHROMA W
AVEFORMS ... 6-22
BLOCK DIAGRAMS
MAIN
CONTROL ...
6-42
SERVO ...
6-44
VID E O
...
6-46
AUDIO
...
6-48
POWER ...
6-50
MICROPROCESSOR PIN FUNCTION TABLES ... 6-52