ROADSTAR TLV-1085 Schematic
SERVICE MODE LIST
This unit provided with the following SERVICE MODES so you can repair, examine and adjust easily.
To enter SERVICE MODE, unplug AC cord till lost actual clock time. Then press and hold Vol (-) button of main unit and
remocon key for more than 2 seconds.
The both pressing of set key and remote control key will not be possible if clock has been set. To reset clock, either unplug
AC cord and allow at least 30 minutes before Power On or alternatively, discharge backup capacitor.
Set key Remocon key
VOL. (-) MIN
VOL. (-) MIN
VOL. (-) MIN
VOL. (-) MIN 4
VOL. (-) MIN
VOL. (-) MIN
1
2
3
5
6
Operations
Initialization of the factory.
NOTE: Do not use this for the normal servicing.
Horizontal position adjustment of OSD.
NOTE: Also can be adjusted by using the Adjustment MENU.
Refer to the "ELECTRICAL ADJUSTMENT" (OSD HORIZONTAL).
Adjust the PG SHIFTER automatically.
Refer to the "ELECTRICAL ADJUSTMENT" (PG SHIFTER).
Adjust the PG SHIFTER manually.
Refer to the "ELECTRICAL ADJUSTMENT" (PG SHIFTER).
Adjusting of the Tracking to the center position.
NOTE: Also can be adjusted by pressing the ATR button for more than 2 seconds
during PLAY.
POWER ON total hours and PLAY/REC total hours are displayed on the screen.
Refer to the "PREVENTIVE CHECKS AND SERVICE INTERVALS" (CONFIRMATION
OF USING HOURS).
Can be checked of the INITIAL DATA of MEMORY IC.
Refer to the "NOTE FOR THE REPLACING OF MEMORY IC".
VOL. (-) MIN 7
VOL. (-) MIN 8
VOL. (-) MIN 9
Method Operations
Press the ATR button on the
remote control for more than
2 seconds during PLAY.
Make the short circuit between
the test point of SERVICE and
the GND.
Releasing of PROTECTION PASSWORD.
Writing of EEPROM initial data.
NOTE: Do not use this for the normal servicing.
Display of the Adjustment MENU on the screen.
Refer to the "ELECTRICAL ADJUSTMENT" (On-Screen Display Adjustment).
Adjusting of the Tracking to the center position.
Refer to the "MECHANICAL ADJUSTMENT" (GUIDE ROLLER) and "ELECTRICAL
ADJUSTMENT" (PG SHIFTER).
The EOT/BOT/Reel sensor do not work at this moment.
Refer to the "PREPARATION FOR SERVICING"
C2-1
SP351
SPEAKER
J351
HEAD PHONE
SYNCT' TEXT
Y/C_VIDEO
Y/C_AUDIO
Y/C/AUDIO/
HEAD AMP/
21PIN/IN/OUT
TU_AUDIO
TU_VIDEO
MICON/
OPERATION
J503
DC JACK
AC IN F501
Q513
5V SW.
TV_POWER_H
Q510
DC FEED
BACK
1
1
2
2
Q507
FEED BACK
Q506
5V SW.
TUNER_AGC
2
3
1
SW.
VR502
1
2
7
Q605
BUFFER
TU601
1
4
5
Q501
DC POWER
SW.
11.3V REG. OPE AMP IC
IC504 FA7610CP
1
L501
3
4
1
2
IC506
TLP621(D4-GR-LF2)
FEED BACK
11
6
4
D503, D504, D535, D536
RECTIFIER
IC501 STR-G6651
POWER REG. IC
1
3
SOUND AMP IC
IC351 AN7511
8
6
Q601
AMP
Q509, Q512
REG DRIVER
5 4
Q608
BUFFER
SAW FILTER
CF601
154
Q505
VR501
2
5
1
L608
5
7
2
6
4
SW.
T501
10
TV BLOCK DIAGRAM
CHROMA/IF IC
IC601
LA76812
44
CLMP
PLL
P2C
RELAY
SW.
VIDEO
SW
SW
DELAY
PEAKING
CORING
PPC1
ACC
DEMO
CONTRAST
BRIGHT
LINE
42
CLMP
51
DC
VOL
BUS
SW
BPF
VIDEO
AMP
IF AGC
F501
SPLL
VIF
PMP
LIM
DET
FM
BPF
VIDEO
DET
Q503, Q518
PROTECTOR
RY503
Q511
DC POWER
Q514
PROTECTOR/
AC, DC SW.
1
2
54
52
46
11
12
4
RF AGC
1
3
6
5
49
48
T502
4
3
2
11
38
VCO
TINT
SYNC
SEP
BLACK
STRETCH
BLACK
STRETCH
X601
4.433619MHz
HDR
VCO
1/256
HDR
C/D
PFC1
COLOR
CLAMP
RGB
MATRIX
Q471, Q472
SW.
FBP
PFC2
PHASE
SHIFTER
HDR
OUT
VER
VER
RANP
C/D
VER
SEP
OSD
SW
OSD
FIX GAIN
AFT
Q603, Q604
L508
DEGAUSS COIL
Q402
DEGAUSS
DRIVER
Q401
DEGAUSS SW
V. OUTPUT IC
IC401 LA78040
13
ABL
21
19
DRIVE/
CUT-OFF
26
17
16
15
CLAMP
14
H. OUT SW
THERMAL
PROTECTION
5
28
27
23
20
10
-
+
1
V.POSI ADJ
Q609, Q610
SD SW
J1002
3
2
1
PUMP
UP
2
VR402
3
Q405
H. DRIVE
Q804
RED AMP
Q805
GREEN AMP
Q806
BLUE AMP
3
2
1
FB401
3
7
9
6
J1001
Q406
H. OUTPUT
HV
F
S
Q602
V. REF
J801
F
8
7
9
3
B_OUT
G_OUT
R_OUT
AFT_M
VD
HD
TEXT_Y
TEXT_Y
TEXT_B
TEXT_G
TEXT_R
P. CON + 5V
EXT_H
FRONT_AUDIO
FRONT_VIDEO
DY
V801
CRT
MICON/
OPERATION
T' TEXT
Y/C/AUDIO/
HEAD AMP/
21PIN/IN/OUT
E-1
AC+B ADJ
DC+B ADJ
E-2
Y/C/AUDIO/HEAD AMP/21PIN/IN/OUT BLOCK DIAGRAM
OPERATION
HEAD AUDIO
CONTROL
FE HEAD
MICON/
OPERATION
CP4001
2
SP-CH2 (L)
3
CYL.
MICON/
SP COM
4
SP-CH1 (R)
VCR_A_MUTE
V.REC_ST_H
CP4005
1
AE HEAD (+)
2
AE HEAD (-)
3
CTL-
4
CTL+
5
AUDIO REC
AUDIO PB6
CP4004
FE HEAD (HOT)
1
FE HEAD (GND)
2
TU_AUDIO_MUTE_H
T' TEXT
2FSC_A
SCL
SDA
H.SW
ENV.DET
CTL+
CTL-
EXT_IN_L
VV-H
21_Y
21_B
21_G
21_R
Y/C_VIDEO
Q4010
Q4002
OSC
Q4001
NORMAL A.
REC ST SW
BUFFER
Q4003
V.REC
ST SW
1
3
D4511
D4510
Q4510, Q4511
Y SW
L4005
Y/C/AUDIO/
CCD/HEAD AMP IC
IC4001
HA118217F
Q4004,Q4005
PB SW
6
5
4
Q4507
PERI SW
Q4512
TUNER SW
86
87
88
89
62
63
81
84
99
2
4
Q4505
MUTE SW
79
2MLPF
H.
A
M
P
REC
MUTE
SERIAL CONT
INTERFACE
ENV
DET
PRE
AMP
REC
EQ
Q4509
AMP
X4001
4.433619MHz
54
6dB AMP
C SQUELCH
R
P
RP
P
Y APA
D.E
N.C
YNP
CLAMP
23
CCD
LPF
CLPF
MAIN
+
CONV2
R
P
BPF
R
G EQ
D LIM
DEMO
SLPF
MAIN
DE-EMPH
58
ACC
TRAP
LPF
+
8
7
73
P
R
CTL TRAP
629
TRAP
7M LPF
1M HPF
LINE
MUTE
LINE
AMP
11
16
15
11
fh HPF
P
R
MIX
LEVELADJ
B.E
C.K
20
19
75
P
DELAY
FM AGC
LAG LEAD
LPF
FM MOD
F0/DEV ADJ
S-DET
L4001
J4501
69
R
60
VCA
CLPF
+
P.EQ S DL
15.6KHz
TRAP
Q4501, Q4502
BUFFER
R
MAIN
CONV1
P
FBC
ALC
MAIN EMPH
CARRIER
OFFSET
W.C/DC
Q4007
RP
SQPB
SQPB
AMP
78
P
R
HPF
HPF
P
R
87
VCA
REC
MUTE
9
216
3
55
C.K
N-->P
B.D
P
YLPF
R
18
52
6dB AMP
CLEAR
SYNC
SQUELCH
FBC
VIDEO ALC
VIDEO
AGC
CLAMP
21
P
R
SYNC.
SEP
24
C CCD
CLOCK
DEIVER
Y CCD
ATT
ATT
ATT
LPF
19
46
35
44
42
39
28
30
50
31
26
Q4006
BUFFER
V.SYNC
TU_AUDIO
TU_VIDEO
Y/C_VIDEO
Y/C_AUDIO
FRONT_VIDEO
FRONT_AUDIO
EXT_H
MICON/
OPERATION
TV
E-3
E-4
MICON/OPERATION BLOCK DIAGRAM
POWER
CAPSTAN
DD UNIT
MICRO
MOTOR
AT+5.6V
AT+12V
VCR_POWER_H
CP1004
4 CTL
5 VCO
6
FG
7
CAP/M/F/R
CP1005
1 CYL PG
3 CYL FG
5
CYL DRIVE
P. CON+5V
D1003
SW1001
23
4
1
4
1
3
2
14
2
3
1
234
3
1
4
2
32.768KHz
Q1021
Q1020
MS_SEN A
Q1009
MS_SEN B
Q1003
Q1002
SENSOR SW
REEL
SENS.
Q1005
REEL SENS.
X1002
X1001
10MHz
VCR POWER
SW
CENT LED
CTL
Q1001
SYSCON/TIMER/SERVO IC
IC1006 OEC0093B
53
TAB SW
MS SEN-A
28
MS SEN-B
27
MS SENS CTL
55
70
REEL T
REEL S
69
76
X1
75
X2
80
OSC2
78 OSC1
51
VCR_POWER_ON-H
CAP FULL
72
9
CFG
CAP FWD-L
71
DPG
103
104
DFG
DRUM PWM
107
52
CENT LED
/RES
TUNER_MUTE
4/2FSC IN
C.SYNC
VCR_MUTE
CTL(+)
CTL(-)
V.REC ST-H
VV-H
TUNER_AGC
VIDEO H.SW
IIC_DATA_0
IIC_CLK_0
VSYNC
AFT S.CURVE
TV_POWER_ON-H
KEY-A
SYSTEM RESET IC
77
3 OUT
IC1002
RE5VS31A
84 EXT_IN-L
91
22
111
89
3
4
90
73
35
105
24 VIDEO_ENV
EEP ROM IC
60
59
61TEXT_RESET
14HSYNC
15
B
101
100G
99R
96YCO
33
50
30
Q1014
TV POWER
5
6
SW
IC1099
S-24C08ADPA-01
1
Q1016
HD SW
Q1006
MAIN POWER
OFF MUST SW.
Q1015
VD SW
AT+5.6V
EXT_IN_L
TU_AUDIO_MUTE_H
2FSC_A
V.SYNC
VCR_A_MUTE
CTL+
CTLV.REC_ST_H
VV-H
H.SW
ENV_DET
SCL
SDA
SDA
SCL
TEXT_RESET
HD
VD
B.OUT
G.OUT
R.OUT
TEXT_Y
TUNER_AGC
AFT_M
TV_POWER_H
Y/C/AUDIO/
HEAD AMP/
21PIN/IN/OUT
T' TEXT
TV
DECK
POWER
MOTOR+12V
CP1006
BOT
2
LDM-
3
4
LDM+
Q1017
LOADING MOTOR DRIVER IC
IC1001 BA6955N
POWER
SAVE
1
2
EOT
CONTROL LOGIC
STD
5
7
POWER
FF/REW-L
KEY-B
4
68
67
LDM RVS
LDM FWD
CTLFB
CTLAMP
CTLSMT
BOT
25
EOT26
REC LED
T-REC LED
95
29
43REMOCON IN
6
7
8
46
45
Q1004
FF/REW SW
OS1001
31
ON/OFF
CH DOWN
D4205
D4203
CH UP
REC/OTR
D4204
VOL. UP
STOP/EJECT PLAY FF/CUE
Q4201
POWER ON
SW
AT + 5V
VOL. DOWN
T-REC_LED
REC_LED
REW/REV
POWER
E-5
E-6
T' TEXT BLOCK DIAGRAM
Y/C/AUDIO/
HEAD AMP/
21PIN/IN/OUT
TV
Y/C_VIDEO
21_B
21_R
21_G
21_Y
TEXT_B
TEXT_R
TEXT_G
TEXT_Y
SYNC
D852
D861
1
1Y
Y-COM
15
2
0Y
X-COM
14 13
4
3
1Z
Z-COM
1X
0X
12 11 10
TRIPLE ANALOG MPXER IC
IC853
TC74HC4053AF
5
0Z
A
C
B
9
Q853
SYNC
BUFFER
Q855
Q852
Q851
Q862
D860
D858
D855
D857
D859
D856
RED
BUFFER
GREEN
BUFFER
BLUE
BUFFER
BLK.
BUFFER
Q863
DECODER IC
IC851 ET106
RED
23
GREEN
22
BLUE
20
19
BLANK
SYNC
2
V.REF
VIDEO
TDATA
TCLK
CSB
P.CON+5V
3
10
11
12
15WIND
DATA SLICER IC
IC852 ET317
TDATA
13
TCLK
12
SYNC
19
WIND
17
SSIG
OSC1
OSC2
Q856
BUFFER
2
3CSIG
X851
13875KHz
5
6
MICON/
OPERATION
E-7
SDA
SCL
TEXT_RESET
18
17
SDA
SCL
RSTB
5
E-8
POWER BLOCK DIAGRAM
CD810
8
6
5
7
3
AT+30V
Q1008, Q1018
P.CON SW.
Q1012, Q1013
P.CON SW.
5V REG. IC
IC1005 KIA7805API
31
Q1007, Q1019
P.CON SW.
Q1010
P.CON SW.
5V REG. IC
IC1004 KIA7805API
31
9V REG. IC
IC1003 KIA7809API
1
3
P.CON+5V_B
P.CON+5V
P.CON+9V
VCR_POWER-H
MOTOR+12V
T-REC_LED
REC_LED
MICON/
OPERATION
E-9 E-10
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