Funai VIP-5000HC MK12 Service Manual
SERVICE MANUAL
Sec. 1: Main Section
● Specifications
● Preparation for Servicing
● Adjustment Procedures
● Schematic Diagrams
Sec. 2: Deck Mechanism Section
● Standard Maintenance
● Alignment for Mechanism
● Disassembly/Assembly of Mechanism
● Alignment Procedures of Mechanism
Sec. 3: Exploded views
and Parts List Section
● Exploded views
● Parts List
● CBA’ s
VIDEO CASSETTE RECORDER
VIP-5000HC MK12
PLAY
F.FWD
REW
STOP/EJECT
/
AUTO
STANDBY
STANDBY ON
AUTO
REPEAT
SYSTEM SELECT
REPEAT
VIP-5000LR MK12
STANDBY
STANDBY ON
AUTO
REPEAT
RECORD
SYSTEM SELECT
REW
STOP/EJECT
RECORD
PLAY
/
F.FWD
AUTO
REPEAT
PAL
H7700CVR
MAIN SECTION
VIDEO CASSETTE RECORDER
VIP-5000HC MK12/VIP-5000LR MK12
Sec. 1: Main Section
● Specifications
● Preparation for Servicing
● Adjustment Procedures
● Schematic Diagrams
● CBA’ s
TABLE OF CONTENTS
Specifications..................................................................................................................................................... 1-1-1
Important Safety Precautions............................................................................................................................. 1-2-1
Standard Notes for Servicing............................................................................................................................. 1-3-1
Preparation for Servicing ................................................................................................................................... 1-4-1
Cabinet Disassembly Instructions...................................................................................................................... 1-5-1
Electrical Adjustment Instructions...................................................................................................................... 1-6-1
Block Diagrams.................................................................................................................................................. 1-7-1
Mechanical Trouble Indicator............................................................................................................................ 1-7-9
Schematic Diagrams / CBA’ s and Test Points .................................................................................................. 1-8-1
Waveforms......................................................................................................................................................... 1-9-1
Wiring Diagram .................................................................................................................................................. 1-10-1
System Control Timing Charts ............................................................................................................................1-11-1
IC Pin Function .................................................................................................................................................. 1-12-1
Lead Identifications............................................................................................................................................ 1-13-1
H7700CVR
SPECIFICATIONS
Description Unit Minimum Nominal Maximum Remark
1. Video
1-1. Video Output (PB) Vp-p 0.8 1.0 1.2 FL6A
1-2. Video Output (R/P) Vp-p 0.8 1.0 1.2
1-3. Video S/N Y (R/P) dB 40 45 HPF:100Hz
INPUT:50% WHITE LPF:5MHz
SC TRAP ON
1-4. Video Color S/N AM (R/P) dB 35 41 HPF:100Hz
1-5. Video Color S/N PM (R/P) dB 30 36 LPF:500KHz
INPUT:100% COLOR SC TRAP ON
1-6. Resolution (PB) Line 230 240 FL6M
2. Servo
2-1. Jitter Low µsec 0.07 0.12 FL6N
2-2. Wow & Flutter % 0.3 0.6 E-30, CCIR, WTD
3. Normal Audio
3-1. Output (PB) dBV -10 -6 -2 FL6A
3-2. Output (R/P) dBV -10 -6 -1.5
3-3. S/N (R/P) dB 36 40
3-4. Distortion (R/P) % 1.5 4.0 INPUT:-10dBV
3-5. Freq. resp (R/P) at 200Hz dB -6 -3
(-20dB ref. 1kHz) at 8kHz dB -6 -3
Note: Nominal specs represent the design specs. All units should be able to approximate these – some will exceed
and some may drop slightly below these specs. Limit specs represent the absolute worst condition that still might be
considered acceptable; In no case should a unit fail to meet limit specs.
1-1-1 H85G0SP
IMPORTANT SAFETY PRECAUTIONS
Product Safety Notice
Some electrical and mechanical parts have special
safety-related characteristics which are often not evident from visual inspection, nor can the protection they
give necessarily be obtained by replacing them with
components rated for higher voltage, wattage, etc. Parts
that have special safety characteristics are identified by
a ! on schematics and in parts lists. Use of a substitute replacement that does not have the same safety
characteristics as the recommended replacement part
might create shock, fire, and/or other hazards. The
Product’s Safety is under review continuously and new
instructions are issued whenever appropriate. Prior to
shipment from the factory, our products are carefully
inspected to confirm with the recognized product safety
and electrical codes of the countries in which they are
to be sold. However, in order to maintain such compliance, it is equally important to implement the following
precautions when a set is being serviced.
Precautions during Servicing
A.Parts identified by the ! symbol are critical for
safety. Replace only with part number specified.
B.In addition to safety, other parts and assemblies are
specified for conformance with regulations applying
to spurious radiation. These must also be replaced
only with specified replacements.
Examples: RF converters, RF cables, noise blocking capacitors, and noise blocking filters, etc.
C.Use specified internal wiring. Note especially:
1) Wires covered with PVC tubing
2) Double insulated wires
3) High voltage leads
D.Use specified insulating materials for hazardous live
parts. Note especially:
1) Insulation tape
2) PVC tubing
3) Spacers
4) Insulators for transistors
E.When replacing AC primary side components
(transformers, power cord, etc.), wrap ends of wires
securely about the terminals before soldering.
F. Observe that the wires do not contact heat produc-
ing parts (heatsinks, oxide metal film resistors, fusible resistors, etc.).
G.Check that replaced wires do not contact sharp
edges or pointed parts.
H.When a power cord has been replaced, check that
5 - 6 kg of force in any direction will not loosen it.
I.Also check areas surrounding repaired locations.
J.Use care that foreign objects (screws, solder drop-
lets, etc.) do not remain inside the set.
K.Crimp type wire connector
The power transformer uses crimp type connectors
which connect the power cord and the primary side
of the transformer. When replacing the transformer,
follow these steps carefully and precisely to prevent
shock hazards.
Replacement procedure
1)Remove the old connector by cutting the wires at a
point close to the connector.
Important: Do not re-use a connector. (Discard it.)
2)Strip about 15 mm of the insulation from the ends of
the wires. If the wires are stranded, twist the strands
to avoid frayed conductors.
3)Align the lengths of the wires to be connected. Insert
the wires fully into the connector.
4)Use a crimping tool to crimp the metal sleeve at its
center. Be sure to crimp fully to the complete closure
of the tool.
L.When connecting or disconnecting the internal con-
nectors, first, disconnect the AC plug from the AC
outlet.
1-2-1 H85G0SFP
Safety Check after Servicing
Examine the area surrounding the repaired location for
damage or deterioration. Observe that screws, parts,
and wires have been returned to their original positions.
Afterwards, do the following tests and confirm the specified values to verify compliance with safety standards.
1. Clearance Distance
When replacing primary circuit components, confirm
specified clearance distance (d) and (d’) between soldered terminals, and between terminals and surrounding metallic parts. (See Fig. 1)
Table 1 : Ratings for selected area
AC Line Voltage Clearance Distance (d) (d’)
110 to 240 V
≥ 3mm(d)
≥ 6 mm(d’)
Chassis or Secondary Conductor
Primary Circuit Terminals
dd'
Note: This table is unofficial and for reference only.
Be sure to confirm the precise values.
2. Leakage Current Test
Confirm the specified (or lower) leakage current between B (earth ground, power cord plug prongs) and
externally exposed accessible parts (RF terminals, antenna terminals, video and audio input and output terminals, microphone jacks, earphone jacks, etc.) is lower
than or equal to the specified value in the table below.
Measuring Method (Power ON) :
Insert load Z between B (earth ground, power cord plug
prongs) and exposed accessible parts. Use an AC
voltmeter to measure across the terminals of load Z.
See Fig. 2 and the following table.
Table 2 : Leakage current ratings for selected areas
AC Line Voltage Load Z Leakage Current (i)
110 to 240 V
2kΩ RES.
Connected in
parallel
50kΩ RES.
Connected in
parallel
i≤0.7mA AC Peak
i≤2mA DC
i≤0.7mA AC Peak
i≤2mA DC
Exposed Accessible Part
Z
One side of
B
Power Cord Plug Prongs
One side of power cord plug
prongs (B) to:
RF or
Antenna terminals
A/V Input, Output
AC Voltmeter
(High Impedance)
Fig. 1
Fig. 2
Note: This table is unofficial and for reference only. Be sure to confirm the precise values.
1-2-2 H85G0SFP
STANDARD NOTES FOR SERVICING
Circuit Board Indications
a.The output pin of the 3 pin Regulator ICs is indicated
as shown.
Top View
Out
b.For other ICs, pin 1 and every fifth pin are indicated
as shown.
Input
In
Bottom View
5
Pin 1
10
c.The 1st pin of every male connector is indicated as
shown.
Pin 1
Instructions for Connectors
1.When you connect or disconnect the FFC (Flexible
Foil Connector) cable, be sure to first disconnect the
AC cord.
2.FFC (Flexible Foil Connector) cable should be inserted parallel into the connector, not at an angle.
How to Remove / Install Flat Pack-IC
1. Removal
With Hot-Air Flat Pack-IC Desoldering Machine:
(1)Prepare the hot-air flat pack-IC desoldering ma-
chine, then apply hot air to the Flat Pack-IC (about
5 to 6 seconds). (Fig. S-1-1)
Fig. S-1-1
(2)Remove the flat pack-IC with tweezers while apply-
ing the hot air.
(3)Bottom of the flat pack-IC is fixed with glue to the
CBA; when removing entire flat pack-IC, first apply
soldering iron to center of the flat pack-IC and heat
up. Then remove (glue will be melted). (Fig. S-1-6)
(4)Release the flat pack-IC from the CBA using tweez-
ers. (Fig. S-1-6)
Caution:
1.Do not supply hot air to the chip parts around the flat
pack-IC for over 6 seconds because damage to the
chip parts may occur. Put masking tape around the
flat pack-IC to protect other parts from damage.
(Fig. S-1-2)
2.The flat pack-IC on the CBA is affixed with glue, so
be careful not to break or damage the foil of each
pin or the solder lands under the IC when removing
it.
FFC Cable
Connector
CBA
* Be careful to avoid a short circuit.
Hot-air
Flat Pack-IC
Desoldering
CBA
Masking
Tape
Tweezers
1-3-1 NOTE_1
Machine
Flat Pack-IC
Fig. S-1-2
With Soldering Iron:
(1)Using desoldering braid, remove the solder from all
pins of the flat pack-IC. When you use solder flux
which is applied to all pins of the flat pack-IC, you
can remove it easily. (Fig. S-1-3)
(4)Bottom of the flat pack-IC is fixed with glue to the
CBA; when removing entire flat pack-IC, first apply
soldering iron to center of the flat pack-IC and heat
up. Then remove (glue will be melted). (Fig. S-1-6)
(5)Release the flat pack-IC from the CBA using tweez-
ers. (Fig. S-1-6)
Flat Pack-IC
Desoldering Braid
Soldering Iron
Fig. S-1-3
(2)Lift each lead of the flat pack-IC upward one by one,
using a sharp pin or wire to which solder will not
adhere (iron wire). When heating the pins, use a fine
tip soldering iron or a hot air desoldering machine.
(Fig. S-1-4)
Sharp
Pin
Note:
When using a soldering iron, care must be taken to
ensure that the flat pack-IC is not being held by glue.
When the flat pack-IC is removed from the CBA,
handle it gently because it may be damaged if force
is applied.
Hot Air Blower
or
Iron Wire
Soldering Iron
To Solid
Mounting Point
Fig. S-1-5
Fine Tip
Fig. S-1-4
Soldering Iron
(3)Bottom of the flat pack-IC is fixed with glue to the
CBA; when removing entire flat pack-IC, first apply
soldering iron to center of the flat pack-IC and heat
up. Then remove (glue will be melted). (Fig. S-1-6)
(4)Release the flat pack-IC from the CBA using tweez-
ers. (Fig. S-1-6)
With Iron Wire:
(1)Using desoldering braid, remove the solder from all
pins of the flat pack-IC. When you use solder flux
which is applied to all pins of the flat pack-IC, you
can remove it easily. (Fig. S-1-3)
(2) Affix the wire to a workbench or solid mounting point,
as shown in Fig. S-1-5.
(3)While heating the pins using a fine tip soldering iron
or hot air blower, pull up the wire as the solder melts
so as to lift the IC leads from the CBA contact pads
as shown in Fig. S-1-5.
CBA
Tweezers
Fine Tip
Soldeing Iron
Flat Pack-IC
Fig. S-1-6
1-3-2 NOTE_1
2. Installation
(1)Using desoldering braid, remove the solder from the
foil of each pin of the flat pack-IC on the CBA so you
can install a replacement flat pack-IC more easily.
(2)The " ● " mark on the flat pack-IC indicates pin 1.
(See Fig. S-1-7.) Be sure this mark matches the 1
on the PCB when positioning for installation. Then
pre- solder the four corners of the flat pack-IC. (See
Fig. S-1-8.)
(3)Solder all pins of the flat pack-IC. Be sure that none
of the pins have solder bridges.
Example :
Pin 1 of the Flat Pack-IC
is indicated by a " ● " mark.
Fig. S-1-7
Instructions for Handling
Semiconductors
Electrostatic breakdown of the semiconductors may
occur due to a potential difference caused by electrostatic charge during unpacking or repair work.
1. Ground for Human Body
Be sure to wear a grounding band (1MΩ) that is properly
grounded to remove any static electricity that may be
charged on the body.
2. Ground for Workbench
Be sure to place a conductive sheet or copper plate with
proper grounding (1MΩ) on the workbench or other
surface, where the semiconductors are to be placed.
Because the static electricity charge on clothing will not
escape through the body grounding band, be careful to
avoid contacting semiconductors with your clothing.
< Incorrect >
CBA
Presolder
Flat Pack-IC
CBA
< Correct >
Grounding Band
Fig. S-1-8
1MΩ
CBA
1MΩ
Conductive Sheet or
Copper Plate
1-3-3 NOTE_1
PREPARATION FOR SERVICING
How to Enter the Service Mode
About Optical Sensors
Caution:
An optical sensor system is used for the Tape Start and
End Sensors on this equipment. Carefully read and
follow the instructions below. Otherwise the unit may
operate erratically.
What to do for preparation
Insert a tape into the Deck Mechanism Assembly and
press the PLAY button. The tape will be loaded into the
Deck Mechanism Assembly. Make sure the power is
on, connect TP507 (SENSOR INHIBITION) to GND.
This will stop the function of Tape Start Sensor, Tape
End Sensor and Reel Sensors. (If these TPs are con-
nected before plugging in the unit, the function of the
sensors will stay valid.) See Fig. 1.
Note: Because the Tape End Sensors are inactive, do
not run a tape all the way to the start or the end of the
tape to avoid tape damage.
CN504
CN501
Q504
(REC-SAFETY SW)
CN251
SW506
[ VIP-5000LR MK12 only ]
CN502
Q503
CN503
TP507
S-INH
Fig. 1
1-4-1 H85G0PFS
CABINET DISASSEMBLY INSTRUCTIONS
1. Disassembly Flowchart
This flowchart indicates the
disassembly steps to gain
access to item(s) to be serviced. When reassembling,
follow the steps in reverse
order. Bend, route, and
dress the cables as they
were originally.
[1] Top Case
[2] Front Assembly
[3] Deck Assembly
[4] REC Arm Assembly
[ VIP-5000LR MK12 only ]
[5] Main CBA
[6] Function CBA
Disassembly Method
REMOVAL
ID/
LOC.
No.
[1] Top Case 1 3(S-1) -
[2]
[3]
[4]
[5] Main CBA 4 *(L-3), *2(L-4) -
[6]
↓
➀
PART
Front
Assembly
Deck
Assembly
REC Arm
Assembly
[ VIP5000LR
MK12 ]
Function
CBA
↓
➁
REMOVE/
Fig.
*UNHOOK/UNLOCK/
No.
RELEASE/UNPLUG/
DESOLDER
2 *3(L-1), *4(L-2)
3 6(S-2), Spacer
*(CN251,
CN501 [ VIP-
5000LR MK12 ],
CN502, CN503,
CN504)
3 ----------
4 Desolder
↓
➂
↓
➃
Note
-
1, 2
-
3
↓
➄
Reference Notes
CAUTION: Locking Tabs (L-1) and (L-2) are fragile. Be
careful not to break them.
1. Remove six Screws (S-2) and the spacer. Then
slowly lift the Deck Assembly up. Lifting Deck Assembly disconnects five Connectors (CN251
CN501 [ VIP-5000LR MK12 ], CN502, CN503,
CN504). (Fig. 3)
2. Before installing the Deck Assembly, be sure to
place the pin of LD-SW on Main CBA as shown in
Fig. 5. Then, install the Deck Assembly while aligning the hole of Cam Gear with the pin of LD-SW, the
shaft of Cam Gear with the hole of LD-SW as shown
in Fig. 5.
3. After removing the Main CBA, desolder from bottom
of the Main CBA as shown in Fig. 4 to remove the
Function CBA.
(S-1)
[1]Top Case
1 : Identification (location) No. of parts in the figures
2 : Name of the part
3 : Figure Number for reference
4 : Identification of parts to be removed, unhooked, un-
locked, released, unplugged, unclamped, or
desoldered.
P=Spring, L=Locking Tab, S=Screw,
CN=Connector
*=Unhook, Unlock, Release, Unplug, or Desolder
e.g. 2(S-2) = two Screws (S-2),
2(L-2) = two Locking Tabs (L-2)
5 :Refer to "Reference Notes."
Fig. 1
1-5-1 H85G0DC
(L-2)
(L-2)
(S-2)
[4]REC Arm
Assembly
(L-1)
CN501
Spacer
[2]Front Assembly
Fig. 2
(S-2)
[3]Deck
Assembly
CN504
CN502
Desolder from
bottom
(L-4)
[5]Main C.B.A.
[6]Function C.B.A.
(L-4)
(L-3)
Fig. 4
Pin
[ VIP-5000LR MK12 ]
CN251
CN503
Fig. 3
[5]Main C.B.A.
[4]Deck Assembly
Shaft
Hole
LD-SW
SW507
LD-SW
Cam Gear
Hole
Pin
[5]Main C.B.A.
Fig. 5
1-5-2 H85G0DC
ELECTRICAL ADJUSTMENT INSTRUCTIONS
General Note: "CBA" is an abbreviation for "Circuit
Board Assembly".
Notes:
1.Electrical adjustments are required after replacing
circuit components and certain mechanical parts. It
is important to do these adjustments only after all
repairs and replacements have been completed.
Also, do not attempt these adjustments unless the
proper equipment is available.
2.To perform these alignment / confirmation procedures, make sure that the tracking control is set in
the center position: Press either channel "▼" or "▲"
button first, then the " PLAY " button (VCR’s Front
Panel only).
Test Equipment Required
1.Oscilloscope: Dual-trace with 10:1 probe, V-Range:
0.001~50V/Div., F-Frange: AC~DC-20MHz
2.Alignment Tape ( FL6A )
1. Head Switching Position
Adjustment
Purpose: To determine the Head Switching point dur-
ing playback.
Symptom of Misadjustment: May cause Head
Switching noise or vertical jitter in the picture.
Test Point Adj. Point Mode Input
TP751(V-OUT)
TP502(RF-SW)
GND
Tape
FL6A Oscilloscope
Connections of Measurement Equipment
Main CBA
VR501 (SW-P)
Measurement
Equipment
TP751
GND
PLAY
(SP)
6.5H±1H
(412.7±60µs)
Oscilloscope
CH1 CH2
----
Spec.
TP502
Figure 1
EXT. Synchronize Trigger Point
CH1
6.5H
CH2
Switching Pulse
Reference Note:
TP502, TP751, VR501 : Main CBA
• Play back the test tape and adjust VR501 so that the
V-sync front edge of the CH1 video output waveform is at the 6.5H(412.7µs) delayed position from
the rising edge of the CH2 head switching pulse
waveform.
Trig. (+)
V-Sync
0.5H1.0H
1-6-1 H8740EA
Servo/System Control Block Diagram BLOCK DIAGRAMS
Comparison Chart of
Models & Marks
13
12
AL+5V
D555
S-LED
RS501
REMOTE
SENSOR
+
14
-
SW507
LD-SW
14
20
18
9
AL+5V
P-ON+5V
Model Mark
VIP-5000HC MK12
VIP-5000LR MK12
(DECK ASSEMBLY)
AC HEAD ASSEMBLY
CONTROL
HEAD
CYLINDER ASSEMBLY
DRUM
MOTOR
PG
SENSOR
LOADING MOTOR ASSEMBLY
LOADING
MOTOR
M
M
MAIN CBA
A
B
IC503
CN287
5 8CTL(+)
6 9CTL(-)
CN504
CN502
1D-W
2D-V
3D-U
4D-COM
5PG-IN
CN504
1LD-M(-)
2LD-M(+)
10
9
25
24
22
21
16
15
17
(1/3)
+
8
-
TP501
IC506
(DRUM /LOADING MOTOR DRIVE)
DRUM
MOTOR
DRIVE
+
-
4
DRIVE
2
LOADING
MOTOR
CONTROL
TP506
END-S
CTL
IC501
(SERVO/SYSTEM CONTROL)
REMOCON
1
REC-CTL(+)
19
REC-CTL(-)
20
PB-CTL
54
LD-SW74
D-CONT56
D-FG
52
D-PG
53
LM-
59
FWD/REV
ST-S
75
END-S
68
T-REEL
49
AUTO REPEAT-IND
AUTO REPEAT-IND
B
KEY-1
KEY-2
B
B
REC-IND 88
REC-IND 91
REC-SAF-SW 25
A-MUTE-H
D-REC-H
72
73
92
94
60
62
KEY
SWITCH
P-ON+9V/+12V
AL+5V
SW506
REC-SAFETY
TP507
S-INH
AL+5V
2 2KEY-2
FUNCTION CBA
CN651CN505
KEY SWITCH
D599 POWER
D595 STAND-BY
D598 AUTO REPEAT
D597 REG TIMER
IC505
(MEMORY)
6
SCL
5
SDA
MD701
2
SCL
SDA
1
A-MUTE-H
D-REC-H
I2C BUS SCL-1
I2C BUS SDA-1
TO AUDIO
BLOCK
CAPSTAN MOTOR
CAPSTAN
MOTOR
M
FG-GND
Q504 Q506
END-S
T-REEL
AL+5V
VR501
SW-POINT
C-F/R
66
51
C-FG
C-CONT
55
PG-DELAY
71
I2C BUS SCL-1
I2C BUS SDA-1
V-ENV
C-ROTA
RF-SW
RESET
P-ON-L
10
70
15
17
34
61
I2C BUS SCL-1
9
I2C BUS SDA-1
V-ENV
C-ROTA
RF-SW
RESET
P-ON-L
TO VIDEO
BLOCK
TO POWER
SUPPLY
BLOCK
CN503
1C-F/R
2P-ON+5V
3AL+12V
4C-FG
5NU
6C-DRIVE
7
8CM-GND
Q503
ST-S
P-ON+5V
AL+12V
1-7-1 1-7-2 H85G0BLS
Video Block Diagram
REC-VIDEO SIGNAL PB-VIDEO SIGNAL MODE: SP/REC
TP751
JK751
V-OUT
MD701
V-OUT
WF1
Q310
AMP
Q305
BUFFER
Q311
BUFFER
IC301
(Y/C PROCESS)
B
X302
X301
4.43MHz
3.58MHz
29 67 66 49
AMP
63 64
VXO
VXO
43
45
Q307
CCD 1H
DELAY
BUFFER
46 41
MAIN CBA
CLAMP
Q304
BUFFER
CLAMP
21 24 2320
I2C BUS SDA-1
I2C BUS SCL-1
SERIAL
DECORDER
Comparison Chart of
Models & Marks
VIP-5000HC MK12
VIP-5000LR MK12
TO
SERVO/SYSTEM
CONTROL BLOCK
Model Mark
A
B
VIDEO
B
JK752
V-IN
IC501
SECAM-CHARA-H
OSD-CHARA-OUT
OSD-BB-OUT
3
Q309
38
32 31
2
C-SYNC C-SYNC
21
31
30
BUFFER
33
28
26
25
27
D-V SYNCD-V SYNC
Q308
CLAMP
EE
AGC
CHARA
INS.
B/B
R P
BPF
D.E.
R/P
FBC
R P
R
1/2
NOISE
CANCELMDE EMPA
Y/C
MIX
PIC-CTL
ANR
C-COMB COMB
Y-LPF
P
P
R
72715759 54 52 51 61
KIL
AMP
DOC YNR Y/C COMB
MAPBPF
KILL
B.D.
CCD
LPF
R P
ACC
4.43MHz
B-UP
AMP
DETAIL
ENH
W/D
CLIP
CONV
629KHz
BPF
MAIN
CONV
SUB
R P
FM
MOD
R
P
V/I
CONV
FM-EQ
C-LPF
REC
SUB
LPF
REC FM
AGC
FM
DEMOD.
PB FM
AGC
DOUBLE
LIMIT
PB
FM-EQ
NL
EMPHA
17
Q302, Q303
PEAKING
AMP
19
R
18
P
(DECK ASSEMBLY)
CYLINDER ASSEMBLY
VIDEO (L) HEAD
VIDEO (R) HEAD
1
2
3
CN251
V(L)
V-COM
V(R)
91
90
89
88
C-ROTA
10
93
11
L
R
ENV DET
TP502
RF-SW
C-ROTA
V-ENV
RF-SW
TO
SERVO/SYSTEM
CONTROL BLOCK
WF2
74
TP301
C-PB
WF5
1-7-3 1-7-4 H85G0BLV
Audio Block Diagram
MD701
PB-AUDIO SIGNAL REC-AUDIO SIGNAL Mode : SP/REC
MAIN CBA
Comparison Chart of
Models & Marks
Model Mark
VIP-5000HC MK12
VIP-5000LR MK12
A
B
JK751
A-OUT
B
JK752
A-IN
(DECK ASSEMBLY)
ACE HEAD ASSEMBLY
AUDIO
5
TP752
A-OUT
A
IC301
(AUDIO PROCESS) 76
PB-ON
4
3
EQ
AMP
SP/LP-ON
1
2
100
ALC
R
LINE
AMP
P
MUTE
ALC
DET
96
B
97
B
AUDIO
HEAD
AUDIO
ERASE
HEAD
FULL
ERASE
HEAD
FE HEAD
CN287
A-PB/REC 4
A-COM 3
AE-H 1
AE-H/FE-H 2
CN504
7 A-PB/REC
6 A-COM
4 AE-H
5 FE-H
CN501
1 FE-H
2 FE-H-GND
Q402
BIAS
OSC
P-ON+5V
Q404 (PB=ON)
Q403
Q405
(PB=ON)
Q401
SWITCHING
D-REC-OFF
P-ON+5V
99
AUTO
BIAS
6
7
B
REC
AMP
B
1030
SERIAL
DECODER
23 24
I2C BUS SDA-1
I2C BUS SCL-1
98
A-MUTE-H
D-REC-H
TO SERVO/SYSTEM
CONTROL BLOCK
1-7-5 1-7-6 H85G0BLA
Power Supply Block Diagram
NOTE :
The voltage for parts in hot circuit is measured using
hot GND as a common terminal.
HOT CIRCUIT. BE CAREFUL.
CAUTION
FOR CONTINUED PROTECTION AGAINST FIRE HAZARD,
REPLACE ONLY WITH THE SAME TYPE T1.6AL/250V FUSE.
CAUTION !
Fixed voltage (or Auto voltage selectable ) power supply circuit is used in this unit.
If Main Fuse (F001) is blown, check to see that all components in the power supply
circuit are not defective before you connect the AC plug to the AC power supply.
Otherwise it may cause some components in the power supply circuit to fail.
MAIN CBA
Comparison Chart of
Models & Marks
Model Mark
VIP-5000HC MK12
VIP-5000LR MK12
A
B
AC001
F001
T1.6AL/250V
L003
LINE
FILTER
D001 - D004
BRIDGE
RECTIFIER
Q002
Q001
T001
2
4
7
12
13
14
Q061
15
J924
A
16
Q054
B
11
17
AL+44V
AL+12V
P-ON-L
P-ON+12V
AL+5V
TIMER+5V
P-ON+5V
RESET
HOT
Q003
6
IC001
ERROR
VOLTAGE DET
4
3
Q004
(SHUNT REGULATOR)
18
Q056
1
2
COLD
REG
H85G0BLP1-7-7 1-7-8
MECHANICAL TROUBLE INDICATOR
Note:
The following symbols will appear on the indicator panel to indicate mechanical trouble.
Indicator Mode
at 0.4Hz interval When power safety is not functioning properly.
at 0.8Hz interval When capstan/reel mechanism is not functioning properly.
AUTO REPEAT
at 1.6Hz interval When tape loading mechanism is not functioning properly.
at 3.2Hz interval When cassette loading mechanism is not functioning properly.
at 6.4Hz interval When the drum is not functioning properly.
1-7-9 H85G0FIS
SCHEMATIC DIAGRAMS / CBA’S AND TEST POINTS
Standard Notes
WARNING
Many electrical and mechanical parts in this chassis
have special characteristics. These characteristics
often pass unnoticed and the protection afforded by
them cannot necessarily be obtained by using replacement components rated for higher voltage, wattage, etc.
Replacement parts that have these special safety characteristics are identified in this manual and its supplements; electrical components having such features are
identified by the mark " !" in the schematic diagram
and the parts list. Before replacing any of these components, read the parts list in this manual carefully. The
use of substitute replacement parts that do not have the
same safety characteristics as specified in the parts list
may create shock, fire, or other hazards.
Capacitor Temperature Markings
Mark
(B) ±10% 20°C -25~+85°C
Capacity
change rate
Standard
temperature
Temperature
range
Note:
1.Do not use the part number shown on these drawings for ordering. The correct part number is shown
in the parts list, and may be slightly different or
amended since these drawings were prepared.
2.
All resistance values are indicated in ohms (K=10
6
M=10
).
3.Resistor wattages are 1/4W or 1/6W unless otherwise specified.
4.All capacitance values are indicated in µF
−6
(P=10
5.All voltages are DC voltages unless otherwise specified.
6.Electrical parts such as capacitors, connectors, diodes, IC’s, transistors, resistors, switches, and
fuses are identified by four digits. The first two digits
are not shown for each component. In each block
of the diagram, there is a note such as shown below
to indicate these abbreviated two digits.
µF).
3
,
(F) +30 -80% 20°C -25~+85°C
(SR) ±15% 20°C -25~+85°C
(Z) +30 -80% 20°C -10~+70°C
Capacitors and transistors are represented by the following symbols.
CBA Symbols
(Top View) (Bottom View)
+
Electrolytic Capacitor
-
(Bottom View)
Transistor or Digital Transistor
E C B
(Top View)
NPN Transistor
(Top View)
PNP Transistor
Schematic Diagram Symbols
Digital Transistor
E C B
(Top View)
E C B
NPN Digital Transistor
E C B
(Top View)
PNP Digital Transistor
E C B
1-8-1 SCPA1
LIST OF CAUTION, NOTES, AND SYMBOLS USED IN THE SCHEMATIC DIAGRAMS ON THE FOLLOWING
PAGES:
1. CAUTION:
FOR CONTINUED PROTECTION AGAINST FIRE HAZARD, REPLACE ONLY WITH THE SAME TYPE FUSE.
2. CAUTION:
Fixed Voltage (or Auto voltage selectable) power supply circuit is used in this unit.
If Main Fuse (F001) is blown, first check to see that all components in the power supply circuit are not defective
before you connect the AC plug to the AC power supply. Otherwise it may cause some components in the power
supply circuit to fail.
3. Note:
(1)Do not use the part number shown on the drawings for ordering. The correct part number is shown in the parts
list, and may be slightly different or amended since the drawings were prepared.
(2)To maintain original function and reliability of repaired units, use only original replacement parts which are listed
with their part numbers in the parts list section of the service manual.
4. Wire Connectors
(1)Prefix symbol "CN" means "connector" (can disconnect and reconnect).
(2)Prefix symbol "CL" means "wire-solder holes of the PCB" (wire is soldered directly).
5. Note: Mark "•" is a leadless (chip) component.
6. Mode: SP/REC
7. Voltage indications for PLAY and REC modes on the schematics are as shown below:
PLAY mode
REC mode
5.0
The same voltage for
both PLAY & REC modes
231
5.0
(2.5)
Indicates that the voltage
is not consistent here.
8. How to read converged lines
1-D3
3
AREA D3
Distinction Area
Line Number
2
(1 to 3 digits)
Examples:
1
1-D3
1. "1-D3" means that line number "1" goes to area "D3".
2. "1-B1" means that line number "1" goes to area "B1".
ABCD
Unit: Volts
1-B1
AREA B1
9. Test Point Information
: Indicates a test point with a jumper wire across a hole in the PCB.
: Used to indicate a test point with a component lead on foil side.
: Used to indicate a test point with no test pin.
: Used to indicate a test point with a test pin.
1-8-2 SCRK05
Main 1/4 Schematic Diagram
1
Note:
*
When it is necessary to replace one or more of the following Diodes,
all four should be replaced: D595, D597, D598, D599.
Comparison Chart of
Models and Marks
MODEL MARK
VIP-5000HC MK12 A
VIP-5000LR MK12 B
1-8-3 1-8-4 1-8-5 H85G0SCM1
Main 2/4 Schematic Diagram
Comparison Chart of
Models and Marks
MODEL MARK
VIP-5000HC MK12 A
VIP-5000LR MK12 B
1-8-6 1-8-7
1-8-8
H85G0SCM2
Main 3/4 Schematic Diagram
Comparison Chart of
Models and Marks
MODEL MARK
VIP-5000HC MK12 A
VIP-5000LR MK12 B
1-8-9
1-8-10 1-8-11
H85G0SCM3
Main 4/4 Schematic Diagram
Comparison Chart of
Models and Marks
MODEL MARK
VIP-5000HC MK12 A
VIP-5000LR MK12 B
NOTE :
THE VOLTAGE FOR PARTS IN HOT CIRCUIT IS MEASURED USING
HOT GND AS A COMMON TERMINAL.
CAUTION
FOR CONTINUED PROTECTION AGAINST FIRE HAZARD,
REPLACE ONLY WITH THE SAME TYPE FUSE.
CAUTION !
Fixed voltage (or Auto voltage selectable ) power supply circuit is used in this unit.
If Main Fuse (F001) is blown, check to see that all components in the power supply
circuit are not defective before you connect the AC plug to the AC power supply.
Otherwise it may cause some components in the power supply circuit to fail.
1-8-12 1-8-13 1-8-14
H85G0SCM4
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