Philips VR140, VR840 Service Manual

Video Cassette Recorder

VR140/02

VR840/07

Service
Service

Service

VR140/07
VR140/39
VR140/58

VR840/16
VR840/39
VR840/58

Service Manual

Contents

Chapter

Cabinet Disassembly Instructions

Sec. 1:

Schematic Diagrams and CBA's
Exploded Views
Mechanical and Electrical Parts Lists

Survey of versions:

/02 PAL B/G
/07 PAL I, Ireland
/16 PAL B/G, Spain
/39 SECAM L,L' & PAL B/G, I
/58 PAL/SECAM B/G, D/K

Standard Maintenance

Sec. 2:

Mechanism Alignment Procedures
Disassembly / Assembly of Mechanism
Deck Exploded View

For technical data reference is made to the Service Manual of VR540/02/07/16
3103 785 22160. The present manual states only the differences.

Safety regulations require that the set be restored to its original
condition and that parts which are identical with those specified
be used.

Published by BK 2003 Video Service Department Printed in Japan c Copyright reserved Subject to modification GB 3103 785 22180

OPERATING CONTROLS AND FUNCTIONS

[ VR140/ (02,07,39,58) ]

REC STANDBY/ON

1 2 3

4 5 6

7 8 9

VCR TV

0

PLAYSTATUS/EXIT CLEAR

REW FWD

MENU

STOP

P

P

PROGVOL

STILL

MUTE SYSTEM

P

VR140/02, VR140/07, VR140/58

VR140/39

Buttons for VCR feature only

VCR

To operate the VCR with the remote control.

CLEAR

To delete last entry/Clear programmed

recording (TIMER).

REC

moment or press repeatedly to start a One-Touch
Recording.

STILL

PROG P

number. During normal playback, press to adjust the
tracking.

SYSTEM

[ VR140/ (02, 07)]
Doesn’t

[ VR140/ (39, 58) ]
To change the video (colour) system.

MENU

PLAY

of VCR.

STOP

menu of VCR

To record the TV channel selected at this

To stop the tape (still picture).

+

PROG P–

work in these

To select the programme

models.

To call up main menu of VCR.

To play a tape, select an item in the menu

-

To stop the tape, select an item in the

-

FWDPLAYREWSTOP/EJECTRECORDPROGRAMMESTANDBY/ON

TV

AERIAL
RF OUT

AV1 (TV)

AERIAL

RF OUT

FWD

AV2 (DECODER)

When tape playback is stopped, press to

-

fast forward the tape at high speed. During playback,
press to fast forward the tape while the picture stay on
the screen. To store or confirm entry in the menu.

REW

When tape playback is stoped, press to

-

rewind the tape at high speed. During playback, press to
rewind the tape while the picture stay on the screen.To
return the cursor in the menu.

Buttons with TV feature

TV

To call up additional TV functions.

STANDBY/ON

off, interrupt menu function.

STATUS/EXIT

screen status display. To exit on-screen menus. Or, to
access or remove a status display or menu of Philips
TV .

0..9

Press to select channels at VCR or Philips TV.

MUTE

To mute the TV’s sound. Press again to

restore the volume.

+

VOL

To switch VCR or Philips TV on or

To access or remove the VCR’s on-

–

VOL

To adjust the TV’s volume.

Press before pressing a VCR-feature key.

VCR

You can use this remote control to operate some functions of
Philips TVs. Press before pressing a TV-feature key.

TV

1-5-3 HE270IB

F

ront of the device

e

B

V

V

V

V

FWDPLAYREWSTOP/EJECTRECORDPROGRAMMESTANDBY/ON

STANDBY/ON

RECORD

FWD

REW

PLAY

STOP/EJECT

To switch off or on, interrupt a function.

PROGRAMME-PROGRAMME+

To select the programme number. During normal playback, press to adjust the tracking.

To record the TV channel selected at this moments.

When tape playback is stopped, press to fast forward the tape at high speed. During playback, press to fast forward the tap
while the picture stay on the screen.

When tape playback is stopped, press to rewind the tape at high speed. During playback, press to rewind the tape while the
picture stay on the screen.

To play a tape.

To stop the tape and eject the cassette.

ack of the set

R140/02, VR140/07, VR140/58

TV

AERIAL
RF OUT

R140/39

AV2 (DECODER)

AV1 (TV)

AERIAL

RF OUT

AERIAL
RF OUT

To connect the aerial cable.
To connect the TV set.

R140/02, VR140/07, VR140/58

TV

To connect the TV set (programme number).

R140/39

A

V2 (DECODER)

AV1 (TV)

To connect a satellite receiver, decoder, video recorder, etc.

To connect the TV set (programme number).

1-5-4 HE270IB

T

h

[ VR840/ (07, 16, 39, 58) ]

he remote control

REC STANDBY/ON

1 2 3

4 5 6

7 8 9

VCR TV

0

PLAYSTATUS/EXIT CLEAR

REW FWD

MENU

STOP

P

P

PROGVOL

STILL

P

INDEXMUTE SLOW SYSTEM

TURBO

SMART

SV / V+

PICTURE

AUDIO

TIMER

Buttons for VCR feature only

VCR

To operate the VCR with the remote control.

CLEAR

recording (TIMER).

moment or press repeatedly to start a One-Touch
Recording.

number. During normal or slow motion playback, press
to adjust the tracking.

INDEX

previous or next recording on the cassette.

AUDIO

To delete last entry/Clear programmed

REC

STILL

To record the TV channel selected at this

To stop the tape and slow a still picture.

+

PROG P–PROG P

To select the programme

In combination with / :to search for

SLOW

To view the picture in slow motion.
To change stereo sound and 2nd language.

SYSTEM

[ VR840/ (07, 16)]
Doesn’t

work in these

models.
[ VR840/ (39, 58) ]
To change the video (colour) system.

SMART PICTURE

TURBO TIMER

To select a smart picture mode.

To programme a recording with the

function TURBO TIMER.

+

SV/V

To make a TIMER programming with

SHOWVIEW system.

To call up main menu of VCR.

MENU

PLAY

To play a tape, select an item in the menu

-

of VCR.

ST

OP

To stop the tape, select an item in the

-

menu of VCR

FWD

When tape playback is stopped, press to fast forward the tape at hig

-

speed. During playback, press to fast forward the tape while the picture stay on the
screen. To store or confirm entry in the menu.

REW

When tape playback is stoped, press to rewind the tape at high

-

speed. During playback, press to rewind the tape while the picture stay on the
screen.To return the cursor in the menu.

Buttons with TV feature

TV

To call up additional TV functions.

STANDBY/ON

STATUS/EXIT

To switch VCR or Philips TV on or off, interrupt menu function.

To access or remove the VCR’s on-screen status display. To exit

on-screen menus. Or, to access or remove a status display or menu of Philips TV.

0..9

Press to select channels at VCR or Philips TV.

MUTE

To mute the TV’

+

VOL

Press before pressing a VCR-feature key.

VOL

VCR

s sound. Press again to restore the volume.

–

To adjust the TV’s volume.

You can use this remote control to operate some functions of
Philips TVs. Press before pressing a TV-feature key.

TV

1-5-5 HE270IB

Front of the device

B

.

STANDBY/ON

A/V FRONT CONNECTORS

STANDBY/ON

PROGRAMME

PWR. REC

RECORD

To switch off or on, interrupt a function.

PROGRAMME-PROGRAMME+

To select the programme number. During

FWDPLAYREW

STOP/EJECT

normal or slow motion playback, press to adjust the tracking.

RECORD

To record the TV channel selected at this moments.

FWD

When tape playback is stopped, press to fast forward the tape at high speed.
During playback, press to fast forward the tape while the picture stay on the screen

REW

When tape playback is stoped, press to rewind the tape at hight speed. During
playback, press to rewind the tape while the picture stay on the screen.

PLAY

STOP/EJECT

STILL

To play a tape.

To stop the tape and eject the cassette.

o stop the tape and slow a still picture.

T

AV FRONT CONNECTORS

White and red socket Audio input socket left/right:

To connect a camera recorder or
video recorder
Yellow socket Video input socket: To connect a camera recorder or video recorder.

ack of the set

AV 2 (DECODER) AV 1 (TV)

AUDIO

OUTPUT

AERIAL

RF OU T

L

R

AUDIO OUTPUT L

AV2(DECODER)

AV1(TV)
AERIAL
RF OUT

To connect the TV set.
To connect the aerial cable.
To connect the TV set.

To connect a HIFI-set.

R

To connect a satellite receiver

, decoder, video recorder,etc.

1-5-6 HE270IB

SIGNAL NAME ABBREVIATIONS

[ VR140/ (02, 07, 39, 58), VR840/ (07, 16, 39, 58) ]

Signal Name Function

Signal Name Function

4.43MHz 4.43MHz Clock
8POUT-1

8POUT-2
A-COM Audio Head Common

A-IN 1, 2 Audio Signal Input 1, 2
A-MODE Hi-Fi Tape Detection Signal

A-MUTE-H
A-OUT Audio Signal Output

SCART 1 8Pin Output Control
Signal

Control SCART 1 8Pin Level by
using 8POUT-1 and 8POUT-2

Audio Mute Control Signal
(Mute = “H”)

C-FG

C-POW-SW Capstan Power Switching Signal
C-POWER-

SW
C-ROTA
C-SYNC Composite Synchronized Pulse

CLKSEL Clock Select (GND)

COLOR-IN

Capstan Motor
Rotation Detection
Pulse

Capstan Power Switching Signal
Color Phase Rotary Changeover

SIgnal

SECAM or MESECAM Chroma
Video Input Signal at Super

Impose
A-PB/REC
AE-H Audio Erase Head
AFC
AGC Tuner IF Signal Output
AL+12/+20.5V

AL+12V

AL+5V

AL+9V

AL-5V
AMPC CTL AMP Connected Terminal

AMPVcc AMPVcc
AMPVREF

OUT
AMPVREF
AUDIO-SW-1

AUDIO-SW-2

AVcc

C-CONT

C-F/R

Normal Audio Play Back/Record
Signal

Automatic Frequency Control
Signal

Always +12V/+20.5V with AC Plug
Connected

Always +12V with AC Plug
Connected

Always +5V with AC Plug
Connected

Always +9V with AC Plug
Connected

Always -5V with AC Plug
Connected

V-Ref for CTL AMP

IN V-Ref for CTL AMP

Audio IN/OUT Control Signal
Audio IN/OUT Control Signal

A/D Converter Power Input/
Standard
Voltage Input

Capstan Motor
Control Signal

Capstan Motor FWD/REV Control
Signal (FWD=”L”/REV=”H”)

CTL (+)

CTL (-)
CTLAMPout To Monitor for CTL AMP Output

D-CONT Drum Motor Control Signal
D-PFG
D-PG Drum Motor Phase Generator

D-REC-H Delayed Record Signal
D-V- SYNC Dummy V-sync Output
DAVN-L VPS/PDC Data Receive = “L”
DRV-CLK LED Clock Driver IC Control Clock
DRV-DATA LED Clock Driver IC Control Data

DRV-STB
END-S Tape End Position Detect Signal

EASY-LINK Easy Link Data Output

FE-H GND Ground for Full Erase Head
FF/REW-L
FSC-IN

[4.43MHz ]
FTV-IN
H-A-COMP Head Amp Comparator Signal

H-A-SW Video Head Amp Switching Pulse
Hi-Fi-A (L) Hi-Fi Audio Head (L)

Playback/Record Control
Signal (+)

Playback/Record Control
Signal (-)

Drum Motor Phase/Frequency
Generator

LED Clock Driver IC Chip Select
Signal

CTL Frequency Characteristics
Switching Signal (FF/REW=”L”)

4.43MHz Clock Input
Comparator Input of Video Signal

for Follow TV

1-6-3 HE270SNA

Signal Name Function

Hi-Fi-A (R) Hi-Fi Audio Head (R)

Signal Name Function

REMOCON-IN Remote Control Sensor
Hi-Fi-COM Hi-Fi Audio Head Common
HiFi-H-SW HiFi Audio Head Switching Pulse
HLF LPF Connected Terminal (Slicer)

2

C BUS- SCL I2C BUS Control Clock

I

2

I

C BUS- SDA I2C BUS Control Data
JK1-8P-OUT SCART 8Pin Output Signal
KEY-1 Key Scan Input Signal 1
KEY-2 Key Scan Input Signal 2

LD-SW

Deck Mode Position Detector
Signal

LINE MUTE Audio Mute Control Signal

LINK-IN Easy Link Data Input
LINK-OUT Easy Link Data Output

LM-FWD/REV Loading Motor Control Signal
LP LP
MOD-A Modulator Audio Output Signal
N-A-PB Normal Audio Playback
N-A-REC Normal Audio Recording

IN Clock Input for letter size

OSC

OUT Clock Output for letter size

OSC
OSD-V-IN OSD Video Signal Input
OSD-V-OUT OSD Video Signal Output
OSDVss OSDVss

P-DOWN-L

Power Voltage Down Detector

Signal
P-OFF-H Power Off at High
P-ON+15V +15V at Power-On Signal
P-ON+32V +32V at Power-On Signal
P-ON+5V +5V at Power-On Signa l
P-ON-H Power On Signal at High
P80/C P80/C Terminal

RESET System Reset Signal (Reset=”L”)
RESET +5V +5V at System Reset Signal
RF-SW Video Head Switching Pulse
RGB-

THROUGH

SCART 2 RGB Through Control

Signal
S-REEL Supply Reel Rotation Signal
SC2-IN Input Signal from Pin 8 of SCART2
SECAM-C-IN SECAM Chroma Signal Input
SECAM-FM-

OUT

SECAM FM Signal Output
SECAM-H SECAM Mode at High

SIF Intermediate Frequency
ST-S

Tape Start Position Detector

Signal
T-REEL Take Up Reel Rotation Signal
TIMER+5V +5V at Timer

TRICK-H

Special Playback = “H” in SECAM

Mode
TU-AUDIO Tuner Audio Input Signal
TU-VIDEO Tuner Video Input Signal

TUN-SW1

V-ENV

Tuner System Control Signal
Output

Video Envelope Comparator

Signal
V-IN Video Signal Input
V- OUT Video Signal Output
Vcc Vcc
VIDEO Video Signal
Vss Vss(GND)
X-IN Main Clock Input
X-OUT Main Clock Input
XC-IN Sub Clock
XC-OUT Sub Clock

PB-H-OUT Playback Signal Output at High

Video Head Switching Pulse

PG-DELAY

Signal Adjusted
Voltage

POW-SAF

P-ON Power Detection Input
Signal

Recording Safety SW Detect (With

REC-SAF-SW

Record tab="L"/With out Record
tab="H")

1-6-4 HE270SNA

CABINET DISASSEMBLY INSTRUCTIONS

)

[ VR140/ (02,07,39,58) ]

1. Disassembly Flowchart

This flowchart indicates the disassem bly 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] VCR Chassis Unit

[4] Jack CBA

[5] Deck Assembly

[6] Main CBA

[7] Cylinder Shield

2. Disassembly Method

REMOVAL

ID/

LOC.

No.

[1] Top Case 1 7(S-1) -

PART

REMOVE/*UNHOOK/

Fig.

UNLOCK/RELEASE/

No.

UNPLUG/DESOLDER

Note

(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,

unlocked, 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.”

Reference Notes

CAUTION: Locking Tabs (L-1) and (L-2) are fragile.
Be careful not to break them.

1. Remove five Screws (S-2), two Screws (S-3) and
Screw (S-4). Then, slowly lift the VCR Chassis Unit
(Deck Assembly, Jack CBA and Main CBA) up.

2. When reassembling, solder wire jumpers as shown
in Fig. 5.

3. Before installing the Deck Assembly, be sure to
place the pin of LD-SW on Main CBA as sho wn in
Fig. 6. 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. 6.

(S-1)

(S-1)

Front

[2]

Assembly
VCR

[3]

Chassis
Unit

[4] Jack CBA 4 Desolder, (S-5) -

Deck

[5]

Assembly

[6] Main CBA 5 ---------- -

Cylinder

[7]

Shield

↓

(1)

↓

(2)

2 *3(L-1),*4(L-2) -

3 5(S-2), 2(S-3), (S-4), 1

5,6 2(S-6), Desolder 2,3

52(S-7) -

↓

(3)

↓

(4)

[1] T op Case

(S-1

↓

(5)

Fig. 1

1-7-4 HE270DC

(L-2)

(S-5)

[4] Jack CBA

Desolder

(L-2)

[2] Front
Assembly

(S-2)

[3]VCR
Chassis Unit

(L-1)

(S-2)

(S-3)

(S-2)

(S-4)

(S-3)

Fig. 2

(S-2)

[7] Cylinder Shield

FE Head

[5] Deck Assembly

Fig. 4

Cylinder Assembly

(S-7)

AC Head
Assembly

[6] Main CBA

(S-6)

(S-6)

Fig. 3

TOP VIEW

From

From
FE Head

Lead with
blue stripe

Lead connections of Deck Assembly and Main CBA

Cylinder
Assembly

Lead with
blue stripe

Desolder
from bottom

From
AC Head
Assembly

From
Capstan Motor
Assembly

Lead with
blue stripe

Printing
side

Fig. 5

1-7-5 HE270DC

Pin

[6] Main CBA

[5] Deck Assembly

SW507
LD-SW

Cam Gear

Shaft

LD-SW

Hole

Hole

Pin

[6] Main CBA

Fig. 6

1-7-6 HE270DC

[ VR840/ (07, 16, 39, 58) ]

1. Disassembly Flowchart

This flowchart indicates the disassem bly 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] VCR Chassis Unit

[4] Jack CBA

[5] Deck Assembly

[6] Main CBA

[8] Rear Panel

[7] Cylinder Shield

2. Disassembly Method

REMOVAL

ID/

LOC.

No.

PART

REMOVE/*UNHOOK/

Fig.

UNLOCK/RELEASE/

No.

UNPLUG/DESOLDER

Note

(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,

unlocked, 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.”

Reference Notes

CAUTION: Locking Tabs (L-1) and (L-2) are fragile.
Be careful not to break them.

1. Remove five Screws (S-2), five Screws (S-3) and
Screw (S-4). Then, slowly lift the VCR Chassis Unit
(Deck Assembly, Jack CBA and Main CBA) up.

2. When reassembling, solder wire jumpers as shown
in Fig. 5.

3. Before installing the Deck Assembly, be sure to
place the pin of LD-SW on Main CBA as sho wn in
Fig. 6. 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. 6.

[1] Top Case 1 7(S-1) -

Front

[2]

Assembly
VCR

[3]

Chassis
Unit

[4] Jack CBA 4 Desolder, (S-5) -

Deck

[5]

Assembly

[6] Main CBA 5 (L-3) -

Cylinder

[7]

Shield
Rear

[8]

Panel

↓

(1)

↓

(2)

2 *3(L-1),*4(L-2) -

3 5(S-2), 5(S-3), (S-4) 1

5,6 2(S-6), Desolder 2,3

52(S-7) -

5 ---------- -

↓

(3)

↓

(4)

↓

(5)

(S-1)

(S-1)

[1] T op Case

(S-1)

Fig. 1

1-7-7 HE490DC

(L-2)

(S-5)

[4] Jack CBA

Desolder

[2] Front
Assembly

(S-3)

(S-2)

(L-1)

(S-3)

(L-2)

Fig. 4

Fig. 2

(S-2)

(S-2)

(S-4)

(S-3)

(S-2)

(S-3)

[3]VCR
Chassis Unit

(S-3)

Fig. 3

1-7-8 HE490DC

ly

[7] Cylinder Shield
FE Head

[8] Rear Panel

Cylinder Assembly

(S-7)

AC Head
Assembly

Pin

SW507
LD-SW

(L-3)

From
FE Head

Lead with
blue stripe

From
Cylinder
Assembly

Lead with
blue stripe

(S-6)

TOP VIEW

From
AC Head
Assembly

[5] Deck Assemb

[6] Main CBA

(S-6)

From
Capstan Motor
Assembly

Lead with
blue stripe

Printing
side

[6] Main CBA

[5] Deck Assembly

Shaft

Hole

LD-SW

Cam Gear

Hole

Pin

[6] Main CBA

Fig. 6

Desolder
from bottom

Lead connections of Deck Assembly and Main CBA

Fig. 5

1-7-9 HE490DC

[ VR140/ (02, 07, 39, 58), VR840/ (07, 16, 39, 58) ]

Servo/System Control Block Diagram

Comparison Chart of
Models & Marks

Model Mark

VR140/02
VR140/07
VR140/39
VR140/58 Q
VR840/07 R
VR840/16
VR840/39
VR840/58

Q504

ST-S

SENSOR CBA

Q505

END-S

SENSOR CBA

(DECK ASSEMBLY)

CONTROL
HEAD

AC HEAD ASSEMBLY

CYLINDER ASSEMBLY CAPSTAN MOTOR

PG
SENSOR

DRUM
MOTOR

M

LOADING
MOTOR

N
O
P

S
T
U

CL287

CL504

5 5CTL(+)
6 6CTL(-)

EASY

-LINK

M

" " = SMD

MAIN CBA

R,S,T,U

FROM
VIDEO
BLOCK

JK101

10

CAPSTAN
MOTOR

TP506

END-S

TU-VIDEO

V-IN1

JACK CBA

M

BLOCK DIAGRAMS

NOTE FOR 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.)

AL+5V

SW507
LD-SW

AL+5V

Q503

T-REEL

P-ON+5V

CL101 CL151

PS503

S-REEL

IC771

(COMPARATOR)

9
8

11
10

12 P-ON+15V
11
10 GND

9
8
7
6
5
4
3
2
1

D502
S-LED

TIMER+5V

R,S,T,U

14

13

AL+5V
VR501
SW-POINT

CL502

AL+12V(2)

D-PFG
D-CONT
LM-FWD/REV
GND
C-CONT
C-F/R
C-FG
P-ON+5V
AL+12V/+20.5V

FROM/TO
POWER
SUPPLY
BLOCK

R,S,T,U

RESET

Q501

P-ON+5V

Q771,
Q772

AND

AL+5V

P-ON+15V
AL+12V

P-ON+5V
AL+12V/+20.5V

C-POW-SW
P-ON-H
P-DOWN-L

P-OFF-H

TEST POINT INFORMATION

TP501

CTL

Q502

4
5

AL+5V

: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.

2

R,S,T,U

Q621
DRIVE5 5EASY-LINK

SW506
REC-

SAFETY

IC501

(SERVO/SYSTEM CONTROL)

97

CTL AMP OUT

KEY- 1

FF/REW-L84

LD-SW9

95

CTL(+)
CTL(-)

94
10

ST-S

4

END-S
T-REEL

80

S-REEL79

RESET

34

FTV-IN

64

LINK-OUT63

LINK-IN85

PG-DELAY

2

31

REC­SAF-SW

D-PG

90

D-CONT77
LM-

81

FWD/REV

C-CONT

76

C-F/R

78

C-FG

87

C-POW-SW

66

P-ON-H

67

P-DOWN-L

86

P-OFF-H

73

R,S,T,U

KEY- 2

DRV-DATA

DRV-STB
DRV-CLK

REMOCON-IN

P

AUDIO-SW-1
AUDIO-SW-2

A-MUTE-H

R,S,T,U

Hi-Fi-H-SW

A-MODE

LINE-MUTE

IIC-BUS SDA

IIC-BUS SCL

D-REC-H

RF-SW

C-ROTA

D-V SYNC

DAVN-L
H-A-SW

H-A-COMP

V-ENV

C-SYNC

TRICK-H

SECAM-H

P,T

68
69
70

14

29
30

83

19
32
28

72
71

33
18
15

13

20
16

17

58

65

61

7

8

6

KEY
SWITCH

IC561

(LED DISPLAY)

DRV-DATA

28

DRV-STB

2

DRV-CLK

1

RS501

REMOTE
SENSOR

TP507

SENS-INH

KEY
SWITCH

G1
G2
G3
G4

S1
S2

S7
S8
S9

S10

23
22
21
20

13
14
16
17

FP562

LED DISPLAY

7
8

TU701(TUNER UNIT)

SDA

3

SDA

12

SCL

5

SCL

11

IC503 (MEMORY)

SDA

5

SCL

6

AUDIO-SW-1
AUDIO-SW-2

IIC-BUS SDA

IIC-BUS SCL

A-MUTE-H

IIC-BUS SDA

IIC-BUS SCL

Hi-Fi-H-SW

A-MODE

LINE-MUTE

IIC-BUS SDA

IIC-BUS SCL

D-REC-H

RF-SW

C-ROTA

D-V SYNC

DAVN-L
H-A-SW

H-A-COMP

V-ENV

C-SYNC

TRICK-H

SECAM-H

TO
AUDIO BLOCK

FROM/TO
Hi-Fi AUDIO
BLOCK

FROM/TO
VIDEO BLOCK

1-9-11 1-9-12 HE270BLS

Video Block Diagram

NOTE FOR WIRE CONNECTORS:

1. PREFIX SYMBOL "CN" MEANS CONNECTOR.
(CAN DISCONNECT AND RECONNECT.)

" " = SMD

MAIN CBA

2. PREFIX SYMBOL "CL" MEANS WIRE-SOLDER
HOLES OF THE PCB.
(WIRE IS SOLDERED DIRECTLY.)

Q351

BUFFER

IC501 (OSD)

OSD

52

CHARACTER
MIX

IC301

(Y/C SIGNAL PROCESS)

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.

FROM
SERVO/SYSTEM
CONTROL BLOCK

50

COLOR

-IN

55

P,Q,T,U

65

DAVN-L

IIC-BUS SDA

IIC-BUS SCL

Comparison Chart of
Models & Marks

Model Mark

VR140/02

REC-VIDEO SIGNAL PB-VIDEO SIGNAL MODE: SP/REC

VR140/07
VR140/39

IC640 (VPS)

DAVN-L

14

6

IIC-BUS SDA

7

IIC-BUS SCL

VPS-V

16

R,S,T,U

69684643

7978

VR140/58 Q
VR840/07 R
VR840/16
VR840/39
VR840/58

N
O
P

S
T
U

V-OUT1

V-IN1

V-OUT2

V-IN2

SERVO/SYSTEM
CONTROL BLOCK

JACK CBA

JK101

Q101

JK102

BUFFER

Q102

BUFFER

19
20

19
20

V-IN1TO
TU-VIDEO

TU701(TUNER UNIT)

VIDEO-IN

VIDEO-OUT

JK756
V-IN-F

R,S,T,U

CL101

1

V-OUT1

V-IN1

3 3

CL102

1

V-OUT2

V-IN2 3

3

6

24

CL151

1

CL152

1

P,R,S,T,U

WF3

J23

V-OUT

48
50
52
54
56

61
63

TUNER

PB/EE

TUNER

IN1

PB/EE

MUTE

IN1

IN2

FRT

IN2

FRT

MUTE

BYPASS

CHARA.
INS.

AGC VXO

58 59

FBC

AGC

PR

Y. DELAY

1/2

LUMINANCE
SIGNAL
PROCESS

CCD 1H DELAY

CHROMINANCE
SIGNAL
PROCESS

Y/C
MIX

4.433619MHz

SERIAL

DECORDER

X301

R

P

Y

REC FM

+

C

R P R P

252928 44

TP301

C-PB

WF2

AGC

R,S,T,U

PB-H OUT

21

SP

SP

HEAD
AMP

EP

EP
HEAD
AMP

D-REC-H

C-ROTA/RF-SW

D-V-SYNC

H-A-SW

H-A-COMP

V-ENV

C-SYNC

96
95
93
94

90
89
88
87

80

70
62

71
83

84
67

(DECK ASSEMBLY)

CL253

V(R)-1

V-COM

V(L)-1

V(L)-2

V-COM

V(R)-2

R,S,T,U

WF1

TP502

RF-SW

D-V-SYNC

H-A-COMP

IC370 (PAL/SECAM DECTECTOR)

28

1
29
17
14
18

2
16

1
2
3
4
5
6

D-REC-H

RF-SW

C-ROTA

H-A-SW

V-ENV

C-SYNC

TRICK-H

SECAM-H

PAL/SECAM
DETECTOR

FROM/TO SERVO/SYSTEM
CONTROL BLOCK

CYLINDER ASSEMBLY

VIDEO (R)-1
HEAD

VIDEO (L)-1
HEAD

VIDEO (L)-2
HEAD

VIDEO (R)-2
HEAD

P,T

1-9-13 1-9-14 HE270BLV

Audio Block Diagram ( N, O, P, Q )

" " = SMD

JACK CBA

JK101

A-IN1(R)
A-IN1(L)
A-OUT1(R)
A-OUT1(L)

A-IN2(R)
A-IN2(L)
A-OUT2(R)
A-OUT2(L)

P

2
6
1
3

JK102

2
6
1
3

Comparison Chart of
Models & Marks

Model Mark

VR140/02
VR140/07
VR140/39
VR140/58 Q
VR840/07 R
VR840/16
VR840/39
VR840/58

N

O

P

S
T
U

NOTE FOR 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.)

TU701(TUNER UNIT)

CL101

CL102

8
6

8
6

A-IN1
A-OUT1

A-IN2
A-OUT2

CL151

8
6

CL152

8
6

TEST POINT INFORMATION

TU-AUDIO

J982

: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.

AUDIO

2

21

J972

IC301 (AUDIO SIGNAL PROCESS)

TUNER

13

IN1

15

IN2

17

PB-ON
5
6

N,O,Q

EQ
AMP

PB-AUDIO SIGNAL REC-AUDIO SIGNAL Mode : SP/REC

MAIN CBA

N,O,Q

J981

P

Q151

BUFFER

Q152

BUFFER

INV

98

IC151 (SWITCHING)

3

13

R

ATT

P

PB/EE
PB/EE
PB/EE
IN2

TUNER
PB/EE
IN1
IN1

SW

CTL

ALC

DET

ALC

1
5
2
4

12
14
15
11

10

9

LINE
AMP

AUDIO-SW-1
AUDIO-SW-2

MUTE

TO SERVO/SYSTEM
CONTROL BLOCK

12

11

(DECK ASSEMBLY)

ACE HEAD ASSEMBLY

AUDIO
HEAD

AUDIO
ERASE
HEAD

FE HEAD

FULL
ERASE
HEAD

CL287
A-PB/REC 4
A-COM 3
AE-H 1
AE-H/FE-H 2

SP/LP-ON

CL504
4 A-PB/REC
3 A-COM
1 AE-H
2 AE-H/FE-H

CL501
2 FE-H
1 FE-H-GND

Q401

Q402

BIAS
OSC

Q405
(PB=ON)

+5V

Q406

Q403

1
2

(SWITCHING)

+5V

AUTO
BIAS

7

REC-ON

3

100

REC
AMP

AUDIO HD-SW
CONTROL

16

SERIAL

DECODER

68 69

71

A-MUTE-H
IIC-BUS SDA
IIC-BUS SCL

TO SERVO/SYSTEM
CONTROL BLOCK

1-9-15 1-9-16 HE270BLA

Audio Block Diagram ( R, S, T, U )

NOTE FOR WIRE CONNECTORS:

1. PREFIX SYMBOL "CN" MEANS CONNECTOR.
(CAN DISCONNECT AND RECONNECT.)

" " = SMD

2. PREFIX SYMBOL "CL" MEANS WIRE-SOLDER
HOLES OF THE PCB.
(WIRE IS SOLDERED DIRECTLY.)

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.

MAIN CBA

PB-AUDIO SIGNAL REC-AUDIO SIGNAL Mode : SP/REC

Comparison Chart of
Models & Marks

Model Mark

VR140/02
VR140/07
VR140/39
VR140/58 Q
VR840/07 R
VR840/16
VR840/39
VR840/58

N
O
P

S
T
U

TO Hi-Fi
AUDIO BLOCK

(DECK ASSEMBLY)

ACE HEAD ASSEMBLY

AUDIO
HEAD

AUDIO
ERASE
HEAD

N-A-PB
N-A-REC

CL287
A-PB/REC 4
A-COM 3
AE-H 1
AE-H/FE-H 2

CL504
4 A-PB/REC
3 A-COM
1 AE-H
2 AE-H/FE-H

Q401

Q402

BIAS
OSC

+5V

Q406

IC301

(AUDIO SIGNAL PROCESS) 1513 17

IN1

R

P

REC
AMP

5
6

1
2

PB-ON

EQ
AMP

SP/LP-ON

AUTO
BIAS

TUNER IN2

INV

98

7

3

100

ATT

ALC

DET

ALC

LINE
AMP

REC-ON

MUTE

12

11

FULL
ERASE
HEAD

FE HEAD

SERIAL

DECODER

68 69

71

A-MUTE-H
IIC-BUS SDA
IIC-BUS SCL

TO SERVO/SYSTEM
CONTROL BLOCK

CL501
2 FE-H
1 FE-H-GND

Q403 (SWITCHING)

Q405
(PB=ON)

AUDIO HD-SW
CONTROL

16

+5V

1-9-17 1-9-18 HE490BLA

Hi-Fi Audio Block Diagram ( R, S, T, U )

" " = SMD

NOTE FOR 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.)

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.

REC-AUDIO SIGNALPB-AUDIO SIGNAL Mode : SP/REC

JACK CBA

A-IN1(R)
A-IN1(L)
A-OUT1(R)
A-OUT1(L)

A-IN2(R)
A-IN2(L)
A-OUT2(R)
A-OUT2(L)

JK101

2
6
1
3

JK102

2
6
1
3

CL101

12

CL102

11

Comparison Chart of
Models & Marks

Model Mark

VR140/02
VR140/07
VR140/39
VR140/58 Q
VR840/07 R
VR840/16
VR840/39
VR840/58

JK758
A-IN(R)-F

JK757
A-IN(L)-F

N

O

P

S
T
U

TO AUDIO BLOCK

A-IN1(R)
A-IN1(L) 8

8
6

A-OUT1(R)
A-OUT1(L) 12

9

A-IN2(R)
A-IN2(L) 8

8
6

A-OUT2(R)
A-OUT2(L) 11

CL151

1010

6

CL152

9

6

N-A-REC
N-A-PB

67
65

52
56
54
50
60

2
6

10

8
4

78
80

(Hi-Fi AUDIO SIGNAL PROCESS)

IC451

SW

SW

ALC

R-CH
INSEL

ALC

62

70

61 71

L-CH
INSEL

+

48

14

ALC

ALC

47

15

MAIN CBA

CN701 CN1

4

TU-AUDIO(R)
TU-AUDIO(L)

5

R-CH
PNR

L-CH
PNR

4
5

P

R

LIM DEV

LIM DEV

R

P

AFV CBA

IF SIGNAL
PROCESS

OUTPUT
SELECT

SW
NOISE

SW
NOISE

CN1

2

SIF
TU-AUDIO 1

1

T

COMP

NOISE
DET

VCO

HOLD
PULSE

LPF

MIX V/I

LPF

VCO

DO
DET

COMP

CN701

2

MUTE-ON

VCO MUTE

MUTE-ON

R-CH
BPF

L-CH
BPF

ENV
DET

LIM

34 33

LOGIC

R

L

MUTE

73
74

72

76
77
75

37
38

21
53

39

24

26

27

CL509

2

A-OUT1(L)

1

A-OUT1(R)

IIC-BUS SDA
IIC-BUS SCL

Q451

CL253

Hi-Fi-A(R) 9
Hi-Fi-COM 8
Hi-Fi-A(L) 7

SUB JACK CBA

R,S,U

A-MODE

LINE-MUTE

Hi-Fi-H-SW

JK751

A-OUT
(L)

A-OUT
(R)

TU701

22

SIF OUT
AUDIO OUT

21

T

2

AUDIO IN

FROM/TO SYSTEM
CONTROL BLOCK

CYLINDER
ASSEMBLY

Hi-Fi
AUDIO
(R) HEAD

Hi-Fi
AUDIO
(L) HEAD

1-9-19 1-9-20

HE490BLH

Power Supply Block Diagram

Comparison Chart of
Models & Marks

Model Mark

VR140/02
VR140/07
VR140/39
VR140/58 Q
VR840/07 R
VR840/16
VR840/39
VR840/58

N

O

P

S
T
U

AC001

NOTE :
The voltage for parts in hot circuit is measured using
hot GND as a common terminal.

HOT CIRCUIT. BE CAREFUL.

F001
T1.6A L 250V

L003

LINE
FILTER

D001 - D004

BRIDGE
RECTIFIER

CAUTION

FOR CONTINUED PROTECTION AGAINST FIRE HAZARD,
REPLACE ONLY WITH THE SAME TYPE T1.6AL/250V FUSE.

T001

Q051

2

4

Q001

12

Q052

13

14

Q058

15

Q057

R,S,T,U

R,S,T,U

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

P-ON+15V
P-ON+32V
P-ON-H

Q053

Q055

Q054

AL+12V/+20.5V
AL+9V
AL+12V
C-POW-SW
AL+5V
TIMER+5V
P-ON+5V
AL-5V
P-DOWN-L
P-OFF-H

R,S,T,U

P

Q003

HOT

Q002

7

6

IC001

ERROR
VOLTAGE DET

4

Q004
(SHUNT REGULATOR)

1

23

REG

16

11

17

18

Q059

P

P

Q056

COLD

1-9-21 1-9-22

HE270BLP

[ VR140/ (02, 17, 39, 58), VR840/ (07, 16, 39, 58) ]

Main 1/8 Schematic Diagram Parts Location Guide

Ref No. P os ition Ref N o. P os i tion Ref No. P ositi on

CAPACITORS
C501 B-1 CL502 F-4 R526 A-2
C502 B-1 CL504 A-3 R527 A-2
C506 C-1 R528 B-1
C508 E-2 D501 E-4 R529 A-1
C510 E-2 D502 A-1 R530 E-1
C511 E-2 D552 E-3 R531 E-1
C512 E-2 D553 E-2 R533 D-1
C513 E-2 D621 D-4 R551 E-3
C514 E-2 R552 E-3
C515 E-2 IC501 C-3 R555 C-1
C516 E-2 IC503 A-4 R556 C-1
C517 E-4 R557 C-1
C518 E-4 L501 A-1 R558 C-1
C519 B-4 L851 D-3 R604 C-4
C520 A-3 R609 D-1
C521 A-2 Q501 E-2 R610 D-1
C522 A-2 Q502 A-2 R617 D-1
C523 A-2 Q503 D -1 R618 D-1
C524 A-2 Q551 E-3 R619 D-1
C526 A-2 Q552 D -3 R621 C-4
C527 B-2 Q621 D -4 R622 D-4
C528 A-2 R623 D-4
C529 A-2 R501 B-1 R611 C-1
C530 B-2 R502 B-2 R624 D-4
C531 B-1 R503 C-2 R625 D-4
C532 A-3 R504 B-1 R851 D-3
C533 A-3 R505 B-1 R852 D-3
C535 E-1 R506 C-1 R853 D-4
C563E-4R508D-2
C564 A-2 R509 D-1 SW506 D-1
C621D-4R510C-4
C622 D-4 R 511 E-2 VR501 B-1
C851 E-3 R513 E-2
C852 E-3 R514 E-2 X501 D-2
C853 D-3 R 516 D-2 X502 D-2
C854E-3R517D-3
C855 D-3 R 518 F-3 PS503 E-1
C856 D-4 R 520 E-4 RS501 B-2
C858 D-4 R 521 E-4
C859 D-4 R 522 E-4 TP501 A-2
C862 D-3 R 523 B-4 TP502 C-1

CONNECTORS

CL501 A-2 R525 B-3

CONNECTORS RESISTORS

DIODES

ICS

COILS

TRANSISTORS

RESISTORS

R524 B-4

SWITCHES

VARIABLE RESISTORS

CRYSTAL OSCILLATO RS

MISCELLANEOUS

TEST PO I NTS

1-10-31

Main 1/8 Schematic Diagram

Compari s on Char t of
Model s a nd Marks

MODEL MARK

VR140/02 N
VR140/07 O
VR140/39 P
VR140/58 Q
VR840/07 R
VR840/16 S
VR840/39 T
VR840/58 U

IC501 KEY VOLTAGE CHART

KEY 1 (7 PIN) KEY 2 (8 PIN) KEY 2 (8 PIN)

(N,O,P,Q) (R,S,T,U)

0.00 ~ 0.51V POWER STOP/EJECT STOP/EJECT

0.51 ~ 0.92V CH DOWN REW REW

0.92 ~ 1.27V CH UP PLAY PLAY

1.27 ~ 1.61V ------------------- FF FF

1.61 ~ 1.98V ------------------- ------------------- P A USE

1.98 ~ 2.39V REC/OTR ------------------- -------------------

2.39 ~ 2.90V ------------------- ------------------- -------------------

2.90 ~ 3.60V S-INH ------------------- -------------------

3.60 ~ 4.30V ------------------- ------------------- -------------------

4.30 ~ 5.00V KE Y OF F K EY OFF K E Y OFF

“ “ = SMD

MODE: SP/REC

THE SAME VOLTAGE FOR
BOTH PLAY & REC MODES.

2

1

5.0

3

5.0

~

(2.5)

INDICA TES THA T THE VOLTAGE
IS NOT CONSISTENT HERE.

PLAY MODE
REC MODE

1-10-32

1-10-33

HE270SCM1

Main 2/8 & Sensor & SW1 & SW2 Schematic Diagram

Compari s on Char t of
Model s a nd Marks

MODEL MARK

VR140/02 N
VR140/07 O
VR140/39 P
VR140/58 Q
VR840/07 R
VR840/16 S
VR840/39 T
VR840/58 U

“ “ = SMD

MODE: SP/REC

THE SAME VOLTAGE FOR
BOTH PLA Y & REC MODES .

2

1

5.0

3

5.0

~

(2.5)
INDICA TES THA T THE VOLTAGE
IS NOT CONSISTENT HERE.

PLAY MODE
REC MODE

1-10-34

1-10-35

HE270SCM2

MAIN 2/8 Schematic Diagram Parts Location Guide

Ref No. Position Ref No. P os ition

CAPACITORS RESISTORS
C538 K-4 R535 J-3
C540 J-3 R536 J-3
C561 J-3 R537 J-3
C562 G-3 R538 K-3
C701 H-2 R539 K-3
C702 I-2 R540 K-4
C703 I-2 R541 K-4
C704 H-2 R542 J-2
C706 H-1 R543 J-2
C707 H-1 R544 K-2
C708 G-1 R545 K-2
C709 I-1 R546 K-2
C710 H-1 R547 J-2
C712 H-1 R548 K-2
C715 I-1 R549 K-2
C716 G-1 R566 J-4
C717 G-1 R701 G-2

CONNECTORS
CL508 K-2 R703 G-1
CL510 K-2 R704 G-1

CN701 K-1 R706 G-1

DIODES

D701 G-2 SW501 J-2

ICS

IC561 J-4 SW503 K-2

COILS
L561 G-3 SW507 J-3
L562 G-3 SW509 J-2
L701 I-2 SW510 K-2
L702 I-1 SW511 K-2
L703 H-2 SW512 K-2
L704 G-1

TRANSISTORS
Q504 L-4 TU701 H-2
Q505 L-4

RESISTORS

R534 J-3 TP507 K-2

R702 G-1

SWITCHES

SW502 J-2

SW505 K-2

MISCELLANEOUS

FP562 H-4

TEST PO I NTS

TP506 K-4

1-10-36

MAIN 3/8 Schematic Diagram Parts Location Guide

Ref No. P os ition Ref N o. Position Ref No. P os ition Ref No. Position

CAPACITORS CAPACITORS RESISTORS
C251 N-3 C 352 M-4 Q402 M-1 R403 N-2
C252N-3C401N-2Q403N-1R404M-2
C253 N-3 C 402 N-1 Q405 M-1 R407 M-1
C254 N-3 C403 M-2 Q406 N-1 R408 N-2
C302P-1C404M-1Q771R-1R409N-2
C303P-1C411O-1Q772R-1R411N-2
C304 P-2 C412 O-2 R412 O-2
C305P-1C414O-1R251N-3R413O-2
C307P-1C415O-1R252N-3R414O-1
C308P-1C416O-2R301P-1R415O-1
C309P-1C417O-1R302P-1R416O-1
C310Q-2C418O-1R303Q-2R417O-1
C311Q-2C419O-1R304Q-2R418N-1
C312Q-2C421O-2R305Q-2R421O-1
C313Q-2C422O-1R307P-4R422O-1
C314Q-3C423O-1R308P-4R423O-1
C315Q-3C424O-2R309P-4R424O-1
C316Q-3C425O-1R310O-4R425O-1
C317 Q-3 C426 P-1 R311 O-4 R426 O-1
C318Q-3C427O-1R312N-4R427P-1
C319Q-3C428O-1R313N-4R428P-1
C320 Q-3 C429 P-1 R314 N-4 R429 O-1
C321 Q-3 C430 P-1 R315 O-4 R430 O-1
C322 Q-3 C431 P-1 R316 O-4 R431 P-1
C323Q-3C771Q-2R317O-4R771Q-1
C324Q-3C772R-1R318O-4R772Q-1
C325Q-4C773R-2R319N-4R773Q-1
C326Q-4C774R-2R320O-4R774Q-1
C327P-4C775Q-2R321Q-4R775Q-1
C328Q-4C776Q-2R322Q-4R776R-1
C329P-4C777Q-2R323Q-3R777R-1
C330P-4C778Q-2R324N-3R778Q-2
C332 P-4 R325 Q-3 R779 Q-2
C333 P-4 CL253 M-3 R326 Q-3 R780 R-2
C334 P-4 R330 Q-3 R781 Q-2
C335P-4D301N-4R331Q-2R782R-2
C336 O-4 R332 P-4 R783 Q-2
C337 O-4 IC301 N-2 R333 Q-4 R784 Q-2
C338 O-4 IC771 Q-1 R334 Q-3 R785 Q-2
C339 O-4 R351 N-4 R786 Q-2
C340 O-4 L251 N-3 R352 N-4 R787 Q-1
C341 O-4 L301 O-4 R355 N-4
C342 O-4 L402 M-2 R357 M-4 X301 P-2
C343 O-4 L403 N-1 R358 N-4
C345 Q-3 R360 M-4 TP301 P-2
C346 P-4 Q351 N-4 R361 N-3
C347 O-4 Q352 N-3 R401 N-2
C351 N-4 Q401 N-2 R402 N-2

CONNECTORS

DIODES

ICS

COILS

TRANSISTORS

TRANSISTORS

RESISTORS

CRYSTAL OSCILLATO RS

TEST PO I NTS

1-10-37

Main 3/8 Schematic Diagram

Compari s on Char t of
Model s a nd Marks

MODEL MARK

VR140/02 N
VR140/07 O
VR140/39 P
VR140/58 Q
VR840/07 R
VR840/16 S
VR840/39 T
VR840/58 U

“ “ = SMD

MODE: SP/REC

THE SAME VOLTAGE FOR
BOTH PLA Y & REC MODES .

2

1

5.0

3

5.0

~

(2.5)

INDICA TES THA T THE VOL TAGE
IS NOT CONSISTENT HERE.

PLAY MODE
REC MODE

1-10-38

1-10-39

HE270SCM3

Main 4/8 & Jack & Sub Jack Schematic Diagram

Comparison Chart of
Models and Marks

MODEL MARK

VR140/02 N
VR140/07 O
VR140/39 P
VR140/58 Q
VR840/07 R
VR840/16 S
VR840/39 T
VR840/58 U

“ “ = SMD

MODE: SP/REC

THE SAME VOLTAGE FOR
BOTH PLA Y & REC MODES .

2

1

5.0

3

5.0

~

(2.5)
INDICA TES THA T THE VOL TAGE
IS NOT CONSISTENT HERE.

PLAY MODE
REC MODE

1-10-40

1-10-41

HE270SCM4

MAIN 4/8 Schematic Diagram Parts Location Guide

Ref No . P os ition Ref No. P osi t ion Ref No. Pos i t ion

CAPACITORS
C151S-3D153U-3R153T-2
C152 U-2 D154 U-3 R154 T-3
C153 T-3 D155 U-2 R155 T-3
C154 T-2 D156 U-1 R158 U-2
C155 T-3 D157 U-3 R756 S-1
C156 T-2 R757 S-1
C157 T-3 IC151 T-3 R758 T-1
C158 U-3 R759 T-1
C159T-2Q151T-3
C756 T-1 Q152 U-2 JK756 T-1
C757 T-1 Q153 U-2 JK757 T-1

CONNECTORS
CL151 U -3 R 15 1 T-3
CL152 U -2 R152 T-3 J23 S-3

DIODES

ICS

TRANSISTORS

RESISTORS

RESISTORS

MISCELLANEOUS

JK758 T-1

TEST POINTS

JACK & SUB JACK Schematic Diagram Parts Location Guide

Ref No . P os ition Ref No. P osi t ion

CAPACITORS
C101 W-4 Q102 V-1
C102 W-4
C103W-3R101W-4
C104W-3R102W-4
C105W-3R103W-4
C107W-2R104W-3
C108W-2R105W-3
C109 V-2 R106 W-3
C110W-2R108W-3
C111 V-2 R109 W-2
C112W-2R110W-2
C113W-2R111W-2
C115 V-4 R112 W-2
C116 W-3 R113 V-2
C117W-1R114W-2
C751 U-1 R115 W-2
C752 U-1 R116 W-2

CONNECTORS
CL101 V-3 R118 W-1
CL102 V-2 R119 W-1
CL509 T-1 R 12 0 V-4

DIODES
D101 W-2 R125 V-1
D102 W-1 R126 V-1
D103W-1R127W-1
D104 W-1 R128 V-3
D105 W-2 R751 U-1
D106 W-3 R752 U-1

COILS MISCELLANEOUS
L101 X-2 JK101 X-4
L102 X-1 JK102 X-2

TRANSISTORS

Q101 W-3

TRANSISTORS

RESISTORS

R117 W-2

R123 V-3

JK751 U-1

1-10-42

MAIN 5/8 Schematic Diagram Parts Location Guide

Ref No. P os ition Ref N o. P os i tion Ref No. P ositi on

CAPACITORS
C002 Y-3 D021 Z-1 R008 Y-2
C003 Y-2 D023 AA-1 R009 Z-1
C004 Z-3 D051 BB-3 R011 Y-1
C005 Z-3 D052 CC-3 R012 Y-1
C006 Z-2 D053 BB-2 R013 Z-1
C007 Z-2 D055 CC-3 R014 Y-1
C008 Z-1 D056 AA-2 R015 Z-1
C010 Y-1 D057 BB-2 R016 Z-1
C011 Y-1 D058 CC-2 R017 AA-3
C012 AA-3 R018 AA-3
C014 AA-3 IC001 Z-1 R021 AA-1
C017 AA-2 R022 AA-1
C018 AA-2 J902 AA-1 R023 AA-1
C020 AA-2 L001 Y-3 R024 AA-1
C021 AA-2 L002 Y-3 R025 AA-1
C022 AA-2 L003 Y-3 R026 AA-2
C025 AA-1 L009 AA-2 R027 Z-1
C026 BB-2 L010 AA-2 R028 Z-3
C053 BB-2 L012 BB-2 R029 AA-1
C056 BB-1 R054 BB-2
C057 BB-1 Q001 Z-2 R058 CC-2
C060 BB-2 Q002 Z-2 R059 BB-2
C061 CC-2 Q003 Z-1 R060 BB-1

DIODES
D001 Z-3 Q051 BB-3 R062 BB-2
D002 Z-3 Q052 BB-3 R063 CC-2
D003 Z-3 Q053 BB-2 R064 CC-2
D004 Z-3 Q054 C C-2 R065 BB-2
D005 Z-2 Q055 BB-2 R066 BB-3
D006 Z-2 Q056 BB-1 R067 BB-3
D007 Z-1 Q057 BB-3 R068 BB-3

D008 Z-1 Q058 C C-3 R069 CC-2
D009 Z-1 Q059 C C-1 R070 CC-2
D011 AA-3 R071 CC-3
D012 AA-3 R001 Y-2 R072 CC-1
D013 AA-2 R002 Z-3 R073 BB-2
D014 AA-2 R003 Z-3
D015 AA-2 R004 Z-3 AC001 Y-3
D016 AA-2 R005 Z-2 F001 Y-3
D018 Z-2 R006 Z-2 SA001 Y-3
D019 AA-1 R007 Z-2 T001 Z-3

DIODES RESISTORS

ICS

COILS

TRANSISTORS

Q004 AA-1 R061 BB-1

RESISTORS

MISCELLANEOUS

1-10-43