Philips VR140/02 User manual

Service Manual
Service
Service
Service
Video Cassette Recorder
Contents
Chapter
Cabinet Disassembly Instructions
Schematic Diagrams and CBA's
Exploded Views
Mechanical and Electrical Parts Lists
Sec. 1:
Standard Maintenance
Mechanism Alignment Procedures
Disassembly / Assembly of Mechanism
Deck Exploded View
Sec. 2:
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
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
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.
VR140/02
VR140/07
VR140/39
VR140/58
VR840/07
VR840/16
VR840/39
VR840/58

1-5-3 HE270IB
1 2 3
4 5 6
7 8 9
P
0
P
P
STILL
STOP
MENU
REW FWD
PLAYSTATUS/EXIT CLEAR
VCR TV
REC STANDBY/ON
PROGVOL
MUTE SYSTEM
FWDPLAYREWSTOP/EJECTRECORDPROGRAMMESTANDBY/ON
Buttons for VCR feature only
To operate the VCR with the remote control.
To delete last entry/Clear programmed
recording (TIMER).
To record the TV channel selected at this
moment or press repeatedly to start a One-Touch
Recording. To stop the tape (still picture).
To select the programme
number. During normal playback, press to adjust the
tracking.
To call up main menu of VCR.
To play a tape, select an item in the menu
of VCR. To stop the tape, select an item in the
menu of VCR
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.
FWD -
STOP -
PLAY -
MENU
SYSTEM
PROG P–
PROG P+
STILL
REC
CLEAR
VCR
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
To call up additional TV functions.
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.
Press to select channels at VCR or Philips TV.
To mute the TV’s sound. Press again to
restore the volume. To adjust the TV’s volume.
VOL –
VOL +
MUTE
0..9
STATUS/EXIT
STANDBY/ON
TV
REW -
Press before pressing a VCR-feature key.
You can use this remote control to operate some functions of
Philips TVs. Press before pressing a TV-feature key.
TV
VCR
RF OUT
TV
AERIAL
VR140/39
VR140/02, VR140/07, VR140/58
RF OUT
AV1 (TV)
AERIAL
AV2 (DECODER)
Doesn’t
To change the video (colour) system.
work in these
[ VR140/ (02, 07)]
[ VR140/ (39, 58) ] models.
OPERATING CONTROLS AND FUNCTIONS
[ VR140/ (02,07,39,58) ]

1-5-4 HE270IB
F
ront of the device
To switch off or on, interrupt a function.
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
e
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.
STOP/EJECT
PLAY
REW
FWD
RECORD
PROGRAMME-PROGRAMME+
STANDBY/ON
FWDPLAYREWSTOP/EJECTRECORDPROGRAMMESTANDBY/ON
RF OUT
TV
AERIAL
B
ack of the set
To connect the TV set (programme number).
To connect the aerial cable.
To connect the TV set.
RF OUT
AERIAL
TV
To connect a satellite receiver, decoder, video recorder, etc.
To connect the TV set (programme number).
AV1 (TV)
A
V
R140/39
V
R140/39
V
R140/02, VR140/07, VR140/58
V
R140/02, VR140/07, VR140/58
V2 (DECODER)
RF OUT
AV1 (TV)
AERIAL
AV2 (DECODER)

1-5-5 HE270IB
T
he remote control
1 2 3
4 5 6
7 8 9
P
0
P
P
STILL
STOP
MENU
REW FWD
PLAYSTATUS/EXIT CLEAR
VCR TV
REC STANDBY/ON
PROGVOL
INDEXMUTE SLOW SYSTEM
TURBO
TIMER SV/ V+ SMART PICTURE AUDIO
Buttons for VCR feature only
To operate the VCR with the remote control.
To delete last entry/Clear programmed
recording (TIMER).
To record the TV channel selected at this
moment or press repeatedly to start a One-Touch
Recording. To stop the tape and slow a still picture.
To select the programme
number. During normal or slow motion playback, press
to adjust the tracking.
In combination with / :to search for
previous or next recording on the cassette.
To view the picture in slow motion.
To change stereo sound and 2nd language.
To select a smart picture mode.
To programme a recording with the
function TURBO TIMER.
To make a TIMER programming with
SHOWVIEW system.
To call up main menu of VCR.
To play a tape, select an item in the menu
of VCR. To stop the tape, select an item in the
menu of VCR
STOP -
PLAY -
MENU
SV/V+
TURBO TIMER
SMART PICTURE
SYSTEM
AUDIO
SLOW
INDEX
PROG P–PROG P+
STILL
REC
CLEAR
VCR
When tape playback is stopped, press to fast forward the tape at hig
h
speed. During playback, press to fast forward the tape while the picture stay on the
screen. To store or confirm entry in the menu.
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
To call up additional TV functions.
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.
Press to select channels at VCR or Philips TV.
To mute the TV’s sound. Press again to restore the volume.
To adjust the TV’s volume.
VOL –
VOL +
MUTE
0..9
STATUS/EXIT
STANDBY/ON
TV
REW -
FWD -
Press before pressing a VCR-feature key.
You can use this remote control to operate some functions of
Philips TVs. Press before pressing a TV-feature key.
TV
VCR
Doesn’t
To change the video (colour) system.
work in these
[ VR840/ (07, 16)]
[ VR840/ (39, 58) ] models.
[ VR840/ (07, 16, 39, 58) ]

1-5-6 HE270IB
Front of the device
B
ack of the set
FWDPLAYREW
STOP/EJECT
RECORD
PROGRAMME
A/V FRONT CONNECTORS
STANDBY/ON
PWR. REC
RF OUT
AV 2 (DECODER) AV 1 (TV)
AERIAL
AUDIO
OUTPUT
L
R
To switch off or on, interrupt a function.
To select the programme number. During
normal or slow motion 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 tape while the picture stay on the screen
.
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.
To play a tape.
To stop the tape and eject the cassette.
To stop the tape and slow a still picture.
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.
AV FRONT CONNECTORS
STILL
STOP/EJECT
PLAY
REW
FWD
RECORD
PROGRAMME-PROGRAMME+
STANDBY/ON
To connect a HIFI-set.
To connect a satellite receiver, decoder, video recorder,etc.
To connect the TV set.
To connect the aerial cable.
To connect the TV set.
RF OUT
AERIAL
AV1(TV)
AV2(DECODER)
AUDIO OUTPUT L R

1-6-3 HE270SNA
SIGNAL NAME ABBREVIATIONS
[ VR140/ (02, 07, 39, 58), VR840/ (07, 16, 39, 58) ]
Signal Name Function
4.43MHz 4.43MHz Clock
8POUT-1 SCART 1 8Pin Output Control
Signal
8POUT-2 Control SCART 1 8Pin Level by
using 8POUT-1 and 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 Audio Mute Control Signal
(Mute = “H”)
A-OUT Audio Signal Output
A-PB/REC Normal Audio Play Back/Record
Signal
AE-H Audio Erase Head
AFC Automatic Frequency Control
Signal
AGC Tuner IF Signal Output
AL+12/+20.5V Always +12V/+20.5V with AC Plug
Connected
AL+12V Always +12V with AC Plug
Connected
AL+5V Always +5V with AC Plug
Connected
AL+9V Always +9V with AC Plug
Connected
AL-5V Always -5V with AC Plug
Connected
AMPC CTL AMP Connected Terminal
AMPVcc AMPVcc
AMPVREF
OUT V-Ref for CTL AMP
AMPVREFIN V-Ref for CTL AMP
AUDIO-SW-1 Audio IN/OUT Control Signal
AUDIO-SW-2 Audio IN/OUT Control Signal
AVcc A/D Converter Power Input/ Standard
Voltage Input
C-CONT Capstan Motor
Control Signal
C-F/R Capstan Motor FWD/REV Control
Signal (FWD=”L”/REV=”H”)
C-FG Capstan Motor Rotation Detection
Pulse
C-POW-SW Capstan Power Switching Signal
C-POWER-
SW Capstan Power Switching Signal
C-ROTA Color Phase Rotary Changeover
SIgnal
C-SYNC Composite Synchronized Pulse
CLKSEL Clock Select (GND)
COLOR-IN SECAM or MESECAM Chroma Video Input Signal at Super
Impose
CTL (+) Playback/Record Control
Signal (+)
CTL (-) Playback/Record Control
Signal (-)
CTLAMPout To Monitor for CTL AMP Output
D-CONT Drum Motor Control Signal
D-PFG Drum Motor Phase/Frequency
Generator
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 LED Clock Driver IC Chip Select
Signal
END-S Tape End Position Detect Signal
EASY-LINK Easy Link Data Output
FE-H GND Ground for Full Erase Head
FF/REW-L CTL Frequency Characteristics
Switching Signal (FF/REW=”L”)
FSC-IN
[4.43MHz]
4.43MHz Clock Input
FTV-IN Comparator Input of Video Signal
for Follow TV
H-A-COMP Head Amp Comparator Signal
H-A-SW Video Head Amp Switching Pulse
Hi-Fi-A (L) Hi-Fi Audio Head (L)
Signal Name Function

1-6-4 HE270SNA
Hi-Fi-A (R) Hi-Fi Audio Head (R)
Hi-Fi-COM Hi-Fi Audio Head Common
HiFi-H-SW HiFi Audio Head Switching Pulse
HLF LPF Connected Terminal (Slicer)
I2C BUS- SCL I2C BUS Control Clock
I2C 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
OSCIN Clock Input for letter size
OSCOUT Clock Output for letter size
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 Signal
P-ON-H Power On Signal at High
P80/C P80/C Terminal
PB-H-OUT Playback Signal Output at High
PG-DELAY Video Head Switching Pulse Signal Adjusted
Voltage
POW-SAF P-ON Power Detection Input
Signal
REC-SAF-SW Recording Safety SW Detect (With Record tab="L"/With out Record
tab="H")
Signal Name Function
REMOCON-IN Remote Control Sensor
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 Tuner System Control Signal
Output
V-ENV 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
Signal Name Function

1-7-4 HE270DC
CABINET DISASSEMBLY INSTRUCTIONS
[ VR140/ (02,07,39,58) ]
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.
2. Disassembly Method
(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 shown in
Fig. 6. Then, install the Deck Assembly while align-
ing 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.
ID/
LOC.
No. PART
REMOVAL
Fig.
No.
REMOVE/*UNHOOK/
UNLOCK/RELEASE/
UNPLUG/DESOLDER Note
[1] Top Case 1 7(S-1) -
[2] Front
Assembly 2 *3(L-1),*4(L-2) -
[3] VCR Chassis
Unit 3 5(S-2), 2(S-3), (S-4), 1
[4] Jack CBA 4 Desolder, (S-5) -
[5] Deck
Assembly 5,6 2(S-6), Desolder 2,3
[6] Main CBA 5 ---------- -
[7] Cylinder
Shield 52(S-7) -
↓
(1) ↓ (2) ↓ (3) ↓ (4) ↓ (5)
[5] Deck Assembly
[4] Jack CBA
[1] Top Case
[2] Front Assembly
[3] VCR Chassis Unit
[6] Main CBA
[7] Cylinder Shield
(S-1)
(S-1)
(S-1
)
[1] Top Case
Fig. 1

1-7-5 HE270DC
(L-2)
(L-1)
[2] Front
Assembly
(L-2)
Fig. 2
(S-2)
(S-2)
(S-4)
(S-2)
(S-2)
(S-3)
(S-3)
[3]VCR
Chassis Unit
Fig. 3
(S-5)
[4] Jack CBA
Desolder
Fig. 4
[6] Main CBA
(S-6)
(S-6)
(S-7)
[5] Deck Assembly
FE Head Cylinder Assembly
AC Head
Assembly
TOP VIEW
From
FE Head
From
Cylinder
Assembly From
AC Head
Assembly
Lead with
blue stripe
Lead with
blue stripe
Desolder
from bottom
Lead with
blue stripe
From
Capstan Motor
Assembly
Lead connections of Deck Assembly and Main CBA
Printing
side
[7] Cylinder Shield
Fig. 5

1-7-6 HE270DC
LD-SW Pin
Hole
Hole
Shaft
Cam Gear
[6] Main CBA
[5] Deck Assembly
[6] Main CBA
SW507
LD-SW
Pin
Fig. 6

1-7-7 HE490DC
[ VR840/ (07, 16, 39, 58) ]
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.
2. Disassembly Method
(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 shown in
Fig. 6. Then, install the Deck Assembly while align-
ing 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.
ID/
LOC.
No. PART
REMOVAL
Fig.
No.
REMOVE/*UNHOOK/
UNLOCK/RELEASE/
UNPLUG/DESOLDER Note
[1] Top Case 1 7(S-1) -
[2] Front
Assembly 2 *3(L-1),*4(L-2) -
[3] VCR Chassis
Unit 3 5(S-2), 5(S-3), (S-4) 1
[4] Jack CBA 4 Desolder, (S-5) -
[5] Deck
Assembly 5,6 2(S-6), Desolder 2,3
[6] Main CBA 5 (L-3) -
[7] Cylinder
Shield 52(S-7) -
[8] Rear
Panel 5 ---------- -
↓
(1) ↓ (2) ↓ (3) ↓ (4) ↓ (5)
[5] Deck Assembly
[4] Jack CBA
[1] Top Case
[2] Front Assembly
[3] VCR Chassis Unit
[6] Main CBA [7] Cylinder Shield
[8] Rear Panel
[1] Top Case
(S-1)
(S-1)
(S-1)
Fig. 1

1-7-8 HE490DC
(L-2)
(L-1)
[2] Front
Assembly (L-2)
Fig. 2
(S-2) (S-2)
(S-4)
(S-2)
(S-2)
(S-3)
(S-3)
[3]VCR
Chassis Unit
(S-3)
(S-3)
(S-3)
Fig. 3
(S-5)
[4] Jack CBA
Desolder
Fig. 4

1-7-9 HE490DC
[6] Main CBA
(S-6)
(S-6)
(S-7)
[5] Deck Assemb
ly
FE Head
Cylinder Assembly
AC Head
Assembly
TOP VIEW
From
FE Head
From
Cylinder
Assembly From
AC Head
Assembly
Lead with
blue stripe
Lead with
blue stripe
Desolder
from bottom
Lead with
blue stripe
From
Capstan Motor
Assembly
Lead connections of Deck Assembly and Main CBA
Printing
side
[7] Cylinder Shield
[8] Rear Panel
(L-3)
Fig. 5
LD-SW Pin
Hole
Hole
Shaft
Cam Gear
[6] Main CBA
[5] Deck Assembly
[6] Main CBA
SW507
LD-SW
Pin
Fig. 6

M
M
LOADING
MOTOR
CYLINDER ASSEMBLY CAPSTAN MOTOR
JACK CBA
DRUM
MOTOR
PG
SENSOR
CL287
5 5CTL(+)
6 6CTL(-)
CL504
MAIN CBA
KEY- 2
C-CONT
C-FG
D-PG
ST-S
T-REEL
C-F/R
KEY- 1
REMOCON-IN
CTL(+)
RESET
FTV-IN
PG-DELAY
CTL(-)
D-V SYNC
D-REC-H
DAVN-L
RF-SW
H-A-SW
C-ROTA
END-S
IC561
(FIP DRIVER)
14
90
87
94
95
CTL AMP OUT
FF/REW-L84
97
76
10
4
80
34
78
2
15
13
18
33
20
16
31
8
7
RS501
REMOTE
SENSOR
81
D-CONT77
Servo/System Control Block Diagram
BLOCK DIAGRAMS
T-REEL
TU-VIDEO
FROM
VIDEO
BLOCK V-IN1
Q771,
Q772
Q501
Q562
Q563
Q564
Q565
DRV-DATA
DRV-STB
DRV-CLK
FP561
FIP
RESET
Q503
Q621
S-REEL79
SW-POINT
AL+5V
AL+5V
VR501
TIMER+5V
AND
S-REEL
PS503
IIC-BUS SDA
IIC-BUS SDA
IIC-BUS SCL
A-MUTE-H
IIC-BUS SDA
IIC-BUS SCL
Hi-Fi-H-SW
A-MODE
A-MUTE-H
Hi-Fi-H-SW
A-MODE
H-A-COMP
17
V-ENV
6
P-ON-H
C-POW-SW
P-ON-H
C-POW-SW
P-DOWN-L
P-OFF-H
67
66
86 P-DOWN-L
73 P-OFF-H
C-SYNC
58
TRICK-H
65
61 SECAM-H
SW506
FROM/TO
VIDEO BLOCK
FROM/TO
Hi-Fi AUDIO
BLOCK
TO
AUDIO BLOCK
1-9-11 1-9-12 HE270BLS
SDA
SDA
SCL
SCL
TU701(TUNER UNIT)
IC503 (MEMORY)
72
32
19
83
IIC-BUS SCL
D-V SYNC
D-REC-H
DAVN-L
RF-SW
H-A-SW
C-ROTA
IIC-BUS SDA
H-A-COMP
V-ENV
C-SYNC
TRICK-H
SECAM-H
IIC-BUS SCL 71
3
5
SDA
SCL
12
11
CAS-LED
TIMER-LED
REC-LED
G1
G2
G3
G4
G5
G6
S1
S2
S7
S8
S9
S10
26
25
24
POWER-LED 23
D565 REC
D564 TIMER
D563 CAS
D562 POWER
D561 STAND-BY
+5V
LD-SW9
AL+12V/+20.5V
P-ON+15V
AL+5V
AL+5V
SW507
AL+12V
P-ON+5V
LD-SW
AL+5V
D502
S-LED
FROM/TO
POWER
SUPPLY
BLOCK
LINE-MUTE
KEY
SWITCH
KEY
SWITCH
TP507
SENS-INH
M
CAPSTAN
MOTOR
" " = 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.
23
22
21
2
22
1
20
13
14
16
17
19
18
7
8
IC561
(LED DISPLAY)
IC501
(SERVO/SYSTEM CONTROL)
IC771
(COMPARATOR)
DRV-DATA
DRV-STB
DRV-CLK
DRV-DATA
DRV-STB
DRV-CLK
FP562
LED DISPLAY
G1
G2
G3
G4
S1
S2
S7
S8
S9
S10
23
22
21
28
2
1
68
69
70
20
13
14
16
17
7
8
AUDIO-SW-1 29
AUDIO-SW-2 30
LINE-MUTE 28
AUDIO-SW-1
AUDIO-SW-2
5
6
914
13
8
11
10
264
LINK-OUT63
LINK-IN85
4
5
DRIVE5 5EASY-LINK
JK101 CL101 CL151
EASY
-LINK 10
CL502
12 P-ON+15V
11 AL+12V(2)
10 GND
9D-PFG
8D-CONT
7
LM-FWD/REV
6GND
5C-CONT
4C-F/R
3C-FG
2P-ON+5V
1
AL+12V/+20.5V
SENSOR CBA
SENSOR CBA
END-S
ST-S
Q504
Q505
REC-
SAFETY
LM-
FWD/REV
REC-
SAF-SW
P-ON+5V
P-ON+5V
TP506
END-S
Comparison Chart of
Models & Marks
Model Mark
VR140/02
VR140/07
VR140/39
N
O
P
VR140/58 Q
VR840/07 R
VR840/16
VR840/39
VR840/58
S
T
U
CONTROL
HEAD
AC HEAD ASSEMBLY
(DECK ASSEMBLY)
R,S,T,U
P,T
R,S,T,U
R,S,T,U
P
R,S,T,U
R,S,T,U
R,S,T,U
Q502
TP501
CTL
[ VR140/ (02, 07, 39, 58), VR840/ (07, 16, 39, 58) ]

CYLINDER ASSEMBLY
V(R)-1
V-COM
V(L)-1
CL253
1
2
3
Video Block Diagram
1-9-13 1-9-14 HE270BLV
(DECK ASSEMBLY)
VIDEO (R)-1
HEAD
SP
HEAD
AMP
EP
HEAD
AMP
REC FM
AGC
FROM/TO SERVO/SYSTEM
CONTROL BLOCK
FROM
SERVO/SYSTEM
CONTROL BLOCK
C-SYNC
TRICK-H
RF-SW
D-REC-H
C-ROTA
D-V-SYNC
H-A-SW
H-A-COMP
V-ENV
SECAM-H
LUMINANCE
SIGNAL
PROCESS
CHROMINANCE
SIGNAL
PROCESS
PB-H OUT
C-SYNC
V-ENV
H-A-COMP
H-A-SW
D-V-SYNC
C-ROTA/RF-SW
VIDEO (L)-1
HEAD
VIDEO (L)-2
HEAD
VIDEO (R)-2
HEAD
V(L)-2
V-COM
V(R)-2
4
5
6
TU701(TUNER UNIT)
IC301
(Y/C SIGNAL PROCESS)
IC501 (OSD)
REC-VIDEO SIGNAL PB-VIDEO SIGNAL MODE: SP/REC
SERIAL
DECORDER
V-OUT1 1
V-IN1
1
3 3
V-OUT2 1
V-IN2 3
1
3
JACK CBA
IC370 (PAL/SECAM DECTECTOR)
PAL/SECAM
DETECTOR
48
50
52
54
56
24
6
50
55
52
19
20
JK101
V-OUT1
V-IN1
19
20
JK102
CL151
CL152
CL101
CL102
V-OUT2
V-IN2
61
63
96
95
93
94
90
89
88
87
CHARA.
INS.
CCD 1H DELAY
SP
BYPASS
MUTE
PB/EE
IN1
TUNER
IN1
TUNER
MUTE
PB/EE
FRT
IN2
FRT
IN2
AGC
PR
R
Y
C
P
R P R P
EP
Y. DELAY
Y/C
MIX
+
21
7978
AGC VXO
OSD
CHARACTER
MIX COLOR
-IN
FBC
1/2
58 59
65
252928 44
17
14
18
2
16
29
1
28
IC640 (VPS)
VPS-V
IIC-BUS SDA
DAVN-L
IIC-BUS SCL
IIC-BUS SDA
IIC-BUS SCL 6
14
7
16
DAVN-L
69684643
" " = 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.
67
84
83
71
62
70
D-REC-H 80
BUFFER
Q101
BUFFER
Q102
J23
V-OUT
WF1
TP301
X301
4.433619MHz C-PB
WF3
VIDEO-OUT
TU-VIDEO
V-IN1TO
SERVO/SYSTEM
CONTROL BLOCK
VIDEO-IN
JK756
V-IN-F
BUFFER
Q351
MAIN CBA
TP502
RF-SW
WF2
Comparison Chart of
Models & Marks
Model Mark
VR140/02
VR140/07
VR140/39
N
O
P
VR140/58 Q
VR840/07 R
VR840/16
VR840/39
VR840/58
S
T
U
R,S,T,U
R,S,T,U
R,S,T,U
R,S,T,U
P,Q,T,U
P,T
P,R,S,T,U

Audio Block Diagram ( N, O, P, Q )
REC
AMP
100 3
AUTO
BIAS
2
1
+5V
J982
TU701(TUNER UNIT)
J981
+5V
Q401
Q406
(SWITCHING)
BIAS
OSC
Q402
Q405
(PB=ON)
Q403
5EQ
AMP 98
7
LINE
AMP
REC-ON
AUDIO HD-SW
CONTROL
MUTE 11
6
PB-ON
SP/LP-ON
P
TUNER
IN2
IN1
R
ALC
DET
SW
CTL
ALC
IC301 (AUDIO SIGNAL PROCESS)
IC151 (SWITCHING)
PB/EE
PB/EE
PB/EE
PB/EE
TUNER
TU-AUDIO
AUDIO
IN2
IN1
IN1
15
13
17
4 A-PB/REC
CL504
3 A-COM
1 AE-H
2 AE-H/FE-H
A-PB/REC 4
A-COM 3
AE-H 1
AE-H/FE-H 2
CL287
AUDIO
HEAD
AUDIO
ERASE
HEAD
ACE HEAD ASSEMBLY
FE HEAD
2 FE-H
1 FE-H-GND
CL501
1-9-15 1-9-16 HE270BLA
MAIN CBA
PB-AUDIO SIGNAL REC-AUDIO SIGNAL Mode : SP/REC
71
A-MUTE-H
AUDIO-SW-1
AUDIO-SW-2
IIC-BUS SCL
IIC-BUS SDA TO SERVO/SYSTEM
CONTROL BLOCK
TO SERVO/SYSTEM
CONTROL BLOCK
FULL
ERASE
HEAD
68 69
SERIAL
DECODER
(DECK ASSEMBLY)
" " = 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.
12
16
INV
ATT
A-IN1
A-OUT1
8
6
JACK CBA
JK101
CL101
A-IN2
A-OUT2
8
6
8
6
8
6
JK102
CL102
CL151
CL152
2
21
1
5
2
4
12
14
15
11
10
9
3
13
BUFFER
Q151
BUFFER
Q152
A-IN1(R)
A-IN1(L)
2
6
1
3
A-OUT1(R)
A-OUT1(L)
A-IN2(R)
A-IN2(L)
2
6
1
3
A-OUT2(R)
A-OUT2(L)
J972
P
N,O,Q
P
N,O,Q
Comparison Chart of
Models & Marks
Model Mark
VR140/02
VR140/07
VR140/39
N
O
P
VR140/58 Q
VR840/07 R
VR840/16
VR840/39
VR840/58
S
T
U

Audio Block Diagram ( R, S, T, U )
REC
AMP
100 3
AUTO
BIAS
2
1
+5V
+5V
Q401
Q406
BIAS
OSC
Q402
N-A-PB
TO Hi-Fi
AUDIO BLOCK N-A-REC
Q405
(PB=ON)
Q403 (SWITCHING)
5EQ
AMP 98
7
LINE
AMP
REC-ON
AUDIO HD-SW
CONTROL
MUTE 11
6
PB-ON
SP/LP-ON
P
TUNER IN2
IN1
R
ALC
DET
ALC
IC301
(AUDIO SIGNAL PROCESS) 1513 17
4 A-PB/REC
CL504
3 A-COM
1 AE-H
2 AE-H/FE-H
A-PB/REC 4
A-COM 3
AE-H 1
AE-H/FE-H 2
CL287
AUDIO
HEAD
AUDIO
ERASE
HEAD
ACE HEAD ASSEMBLY
FE HEAD
2 FE-H
1 FE-H-GND
CL501
1-9-17 1-9-18 HE490BLA
MAIN CBA
PB-AUDIO SIGNAL REC-AUDIO SIGNAL Mode : SP/REC
71
A-MUTE-H
IIC-BUS SCL
IIC-BUS SDA TO SERVO/SYSTEM
CONTROL BLOCK
FULL
ERASE
HEAD
68 69
SERIAL
DECODER
(DECK ASSEMBLY)
" " = 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.
12
16
INV
ATT
Comparison Chart of
Models & Marks
Model Mark
VR140/02
VR140/07
VR140/39
N
O
P
VR140/58 Q
VR840/07 R
VR840/16
VR840/39
VR840/58
S
T
U

ENV
DET
LOGIC
R
L
HOLD
PULSE
LIM
OUTPUT
SELECT
Hi-Fi Audio Block Diagram ( R, S, T, U )
HE490BLH
REC-AUDIO SIGNALPB-AUDIO SIGNAL Mode : SP/REC
IIC-BUS SDA
IIC-BUS SCL
A-MODE
LINE-MUTE
MUTE
MUTE-ON
MUTE-ON
Hi-Fi-H-SW
" " = 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.
JK751
A-OUT
(L)
A-OUT
(R)
IF SIGNAL
PROCESS
JK758
A-IN(R)-F
N-A-REC
TO AUDIO BLOCK N-A-PB
JK757
A-IN(L)-F
AFV CBA
TU-AUDIO(R)
4
TU-AUDIO(L) 5
4
5
CN701 CN1
SIF 2
TU-AUDIO 1
2
1
CN701
CN1
AUDIO OUT
TU701
AUDIO IN
SIF OUT
2
21
22
JACK CBA
MAIN CBA
SUB JACK CBA
JK101
A-IN1(R)
A-IN1(L)
2
6
2
6
1
3
1
3
JK102
CL151
CL152
CL101
CL102
A-IN2(R)
A-IN2(L)
A-OUT1(R)
A-OUT1(L)
A-OUT2(R)
A-OUT2(L)
A-IN2(R)
(Hi-Fi AUDIO SIGNAL PROCESS)
9
A-IN2(L) 8
9
8
A-OUT2(R) 6
A-OUT2(L) 11
6
11
A-IN1(L) 8
A-IN1(R) 1010
8
A-OUT1(R) 6
A-OUT1(L) 12
6
12
IC451
1-9-19 1-9-20
Hi-Fi
AUDIO
(R) HEAD
Hi-Fi
AUDIO
(L) HEAD
CYLINDER
ASSEMBLY
Hi-Fi-A(R) 9
Hi-Fi-COM 8
Hi-Fi-A(L) 7
CL253
48
47
14
15
R-CH
INSEL
L-CH
INSEL
ALC
SW
SW
ALC
62
61 71
70
24
26
27
34 33
L-CH
BPF
COMP
SW
NOISE
COMP
SW
NOISE
R-CH
BPF
VCO
LPF
LIM DEV
VCO
LPF
LIM DEV
MIX V/I
NOISE
DET
DO
DET
P
P
R
R
VCO MUTE
73
74
72
76
77
75
37
38
21
53
39
L-CH
PNR
ALC
R-CH
PNR
ALC
67
65
52
56
54
50
60
2
6
10
8
4
78
80
+
Q451
FROM/TO SYSTEM
CONTROL BLOCK
T
R,S,U
T
CL509
A-OUT1(L)
2
A-OUT1(R)
1
Comparison Chart of
Models & Marks
Model Mark
VR140/02
VR140/07
VR140/39
N
O
P
VR140/58 Q
VR840/07 R
VR840/16
VR840/39
VR840/58
S
T
U

2
4
16
6
7
Power Supply Block Diagram
CAUTION
FOR CONTINUED PROTECTION AGAINST FIRE HAZARD,
REPLACE ONLY WITH THE SAME TYPE T1.6AL/250V FUSE.
NOTE :
The voltage for parts in hot circuit is measured using
hot GND as a common terminal.
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.
HE270BLP
1-9-21 1-9-22
COLD
MAIN CBA
HOT CIRCUIT. BE CAREFUL.
HOT
IC001
ERROR
VOLTAGE DET
Q002
Q003
Q001
F001 L003
LINE
FILTER
BRIDGE
RECTIFIER
D001 - D004
1
23
4
Q004
(SHUNT REGULATOR)
REG
AC001
T001
P-ON+32V
P-ON+15V
12
P-ON-H
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
Q051
Q053
Q054
Q056
Q052
Q057
Q058
13
15
14
11
17
18
T1.6A L 250V
Q055
Q059
Comparison Chart of
Models & Marks
Model Mark
VR140/02
VR140/07
VR140/39
N
O
P
VR140/58 Q
VR840/07 R
VR840/16
VR840/39
VR840/58
S
T
U
P
P
P
R,S,T,U
R,S,T,U
R,S,T,U

Main 1/8 Schematic Diagram Parts Location Guide
1-10-31
[ VR140/ (02, 17, 39, 58),VR840/ (07, 16, 39, 58) ]
RefNo. Position RefNo. Position RefNo. Position
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 R511 E-2 VR501 B-1
C851 E-3 R513 E-2
C852 E-3 R514 E-2 X501 D-2
C853 D-3 R516 D-2 X502 D-2
C854E-3R517D-3
C855 D-3 R518 F-3 PS503 E-1
C856 D-4 R520 E-4 RS501 B-2
C858 D-4 R521 E-4
C859 D-4 R522 E-4 TP501 A-2
C862 D-3 R523 B-4 TP502 C-1
R524 B-4
CL501 A-2 R525 B-3
CONNECTORS
SWITCHES
MISCELLANEOUS
TEST POINTS
CAPACITORS
RESISTORS
CONNECTORS RESISTORS
VARIABLE RESISTORS
CRYSTAL OSCILLATORS
DIODES
TRANSISTORS
ICS
COILS