Sony HVA-G1 User manual

SERVICE MANUAL
MICROFILM
AC py
OWER ADAPTOR ee
-S
<>)
SPECIFICATIONS
Power requirements 220 V AC, 50 Hz
Power cosumption 15W
Output voltage Camera output 6.8 V, 800 mA,
RFU DC output 5 V, 50 mA
Camera input/output connector
AEP Model
12-pin, conforms to 8 mm video specifications
Video output jack Phono jack x 1: 1 Vp-p, 75 ohms unbalanced sync negative
Audio output jack Phono jack x 3 (stereo and monaural): —6 dBs (at — 15 dBs input)
at output impedance less than 1 kilohm
Dimensions Approx. 80 x 58 x 147 mm (31/4 x 23/8 x 57 in.) (w/h/d)
Weight Approx. 650 g (1 Ib 7 oz)
Design and specifications are subject to change without notice.
AC POWER ADAPTOR
SONY.

SAFETY CHECK-OUT
After correcting the original service problem, perform the following
safety checks before releasing the set to the customer:
1. Check the area of your repair for unsoldered or
poorly-soldered connections. Check the entire
board surface for solder splashes and bridges.
2. Check the interboard wiring to ensure that no
wires are “pinched” or contact high-wattage
resistors.
3. Look for unauthorized replacement parts, par-
ticularly transistors, that were installed during a
previous repair. Point them out to the customer
and recommend their replacement.
4. Look for parts which, though functioning, show
obvious signs of deterioration. Point them out
to the customer and recommend their replace-
ment.
5. Check the line cord for cracks and abrasion.
Recommend the replacement of any such line
cord to the customer.
6. Check the B+ voltage to see it is at the values
specified.
7. Check the antenna terminals, metal trim,
“metallized” knobs, screws, and all other
exposed metal parts for AC leakage. Check
leakage as described below.
To Exposed Metal
Parts on Set
AC
0.15 pF voltmeter
[| (0.75 V)
= Earth Ground
Fig. A. Using an AC voltmeter to check AC leakage.
LEAKAGE TEST
The AC leakage from any exposed metal part to
earth ground and from all exposed metal parts to any.
exposed metal part having a return to chassis, must
not exceed 0.5mA (500 microampers). Leakage
current can be measured by any one of three
methods.
1. A commercial leakage tester, such as the
Simpson 229 or RCA WT-540A. Follow the
manufacturers’ instructions to use these instru-
ments.
2. A battery-operated AC milliammeter. The Data
Precision 245 digital multimeter is suitable for
this job.
3. Measuring the voltage drop across a resistor by
means of a VOM or battery-operated AC volt-
meter. The “limit” indication is 0.75V, so
analog meters must have an accurate low-
voltage scale. The Simpson 250 and Sanwa
SH-63Trd are examples of a passive VOM that
is suitable. Nearly all battery operated digital
multimeters that have a 2V AC range are
suitable. (See Fig. A)
SAFETY-RELATED COMPONENT WARNINGI!
COMPONENTS IDENTIFIED BY MARK A OR DOTTED
LINE WITH MARK A ON THE SCHEMATIC DIAGRAMS
AND IN THE PARTS LIST ARE CRITICAL TO SAFE
OPERATION. REPLACE THESE COMPONENTS WITH
SONY PARTS WHOSE PART NUMBERS APPEAR AS
SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUB-
LISHED BY SONY.
To prevent fire or shock hazard, do not expose the unit to rain or moisture.
Dangerously high voltages are present inside the unit. Do not open the cabinet. Refer servising to
qualified personnel only.
The HVA-G1 AC power adaptor can be used as follows:
e To supply power to the CCD-G1E video camera
¢ To connect the CCD-G1E video camera to the VTR without the camera connector (12-pin)
Notes on Use
e This AC power adaptor operates on 220 V AC.
e Unplug the unit from the mains outlet when not in use. To disconnect the cord, pull it out by the plug.
Never pull the cord itself.
° Do not operate the unit with a damaged cord or if it has been dropped or damaged.
¢ Do not disassemble the unit.
¢ Do not apply mechanical shock or drop the unit.
¢ Be careful since the unit gets hot during operation.
e Do not place the unti in locations where it is;
—Extremely hot or cold
—Dusty or dirty
—Very humid

SECTION 1
GENERAL
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-HVA-G1 .
SECTION 2
DISASSEMBLY
2-1. UPPER CASE REMOVAL
Remove two screws on the both side of upper
case, and remove the upper case.
upper case
front side
A screw-hol
2-2. UPFER CASE REASSEMBLY
The side of upper case that the distance A
between screw-hole and the edge of upper case
is longer than other side should be front side.
(distance B shorter should be rear side)

SECTION 3
3-1.
FRAME
SCHEMATIC
DIAGRAM
DIAGRAMS
AV=-7 BOARD
+12V
=
RV1
CA=-29 BOARD
VIDEO OUT
:
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MIX AMP ©)! AUDIO OUT
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OVER VOLTAGE
OVER CURRENT
PROTECTION
BOARD
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DC
RV20I |VOLTAGE
+ 6.8V
RE
SP-10 BOARD
HVA-G1

HVA-G1
3-2. PRINTED WIIRNG BOARDS AND SCHEMATIC DIAGRAMS
LD * 2 1 (LED) CA -29 (CAMERA INPUT) SP “ I 0 (POWER, AUDIO OUTPUT) (VIDEO/AUDIO AMP AND OUTPUT)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
—CA-29 BOARD: Ref. No. 2000 series, except for Ref. No. 1000 series —
A
CA=-29 BOARD
LD-21 BOARD
B fra
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@ ©— : indicates a lead wire mounted on the component side. 3-3. Semiconductor Lead Layouts
| © @— : indicates a lead wire mounted on the printed side. NJM2904D NJM78L12A 28C2412K ERB43-08 ERB81-004 PG5531KX S1VB40 11ES2
: soldering side. 28C2757-T32 RD9.1FB2
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1
2
3
4
5
6
id
8
9
10
11
12
13
14 15
—CA-29
BOARD:
Ref.
No.
2000
series,
except
for
Ref.
No.
1000
series
—
A
:
7
=
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REG
@
Caution
when
replacing
chip
parts.
e
4Erd-
:
nonflammable
resistor.
New
parts
must
be
attached
after
removal
of
chip.
‘
a
:
panel
designation.
Note:
The
component
identified
by
mark
A
or
dotted
|
Be
careful
not
to
heat
the
minus
side
of
tantalum
capa-
:
:
line
with
mark
A
are
critical
for
safety.
citor,
because
it
is
damaged
by
the
heat.
e
[
_]
:
adjustment
for
repair.
Replace
only
with
part
number
specified.
@
All
resistors
are
in
ohms,
1/10Wunless
otherwise
noted.
@
Readings
are
taken
with
a
color-bar
signa!
input.
kQ:
10002,
MQ:
1000k2.
@
Readings
are
taken
with
a
digital
multimeter
(DC1OMQ).
When
indicating
parts
by
refer-
© All
capacitors
are
in
uF
unless
otherwise
noted.
pF:
muF.
@
Voltage
variations
may be
noted
due
to
normal
produc-
ence
number,
please
include
the
5OV
or
less
are
not
indicated
except
for
electrolytics
and
tion
tolerances.
board
name.
tantalums.
J
e All
variable
and
adjustable
resistors
have
characteristic
curve B, unless otherwise noted.
— a —10—

No.
1
2
3
4
5
6
T
NOTE:
The mechanical parts with no reference
number in the exploded views are not
supplied.
The construction parts of an assembled
part are indicated with a_ collation
number in the remark column.
SECTION 4
EXPLODED VIEW
Items marked “+” are not stocked since
they are seldom required for routine
service. Some delay should be antici-
pated when ordering these items.
-XX, -X mean standardized parts, so
they may have some differences from
the original one.
The components identified by
rk A or dotted line with mark
A are critical for safety.
eplace only with part number
specified.
Part No.
Description
*2-399-273-01 CASE, UPPER
LD-21 BOARD
*2-392-799-01
2-431-686-01
*A-6768-173-A
*A-6768-172-A
A. 1-551-908-31
BUSHING, CORD
BUTTON
SP-10 BOARD
AV-7 BOARD,
(CR-58),
SW
COMPLETE
CORD, POWER EULO PLUG
Remark No. Part No.
8 4-804-160-21
9 X-2399-204-1
i *2-184-102-01
12 2-184-104-01
Description
Remark
SCREW, SELF-TAPPING,
CASE ASSY, LOWER
CA-29 BOARD
LABEL, MODEL NUMBER
STOPPER
+B 3x6
NOTE:
The components
identified by
or dotted line with mark
rk
A are Critical for safety.
eplace only with part number
specified.
When indicating parts by refer-
ence number, please include the
board name.
co0o1
c002
c003
c004
c005
c006
C007
c008
c009
C010
co11
c012
C013
c014
C015
C016
C017
c018
co21
c022
c023
CNOO1
CNOO2
CNOO3
1c001
JWOO1
JW002
JWO003
JWO04
JWOO5
Qoo1
Qoo2
Q003
Qo004
Q005
ROO1
R002
*A-6768-172-A
*2-399-272-01
Description
AV-7 BOARD, COMPLETE
KRKKKKKEKKKEKEKKKKKEKER
CASE, SHIELD
CAPACITOR
1-124-234-00 ELECT 22MF
1-124-234-00 ELECT 22MF
1-126-157-11 ELECT 10MF
1-126-157-11 ELECT 10MF
1-126-157-11 ELECT 10MF
1-126-157-11 ELECT 10MF
1-126-157-11 ELECT 10MF
1-126-157-11 ELECT 10MF
1-124-234-00 ELECT 22MF
1-124-589-11 ELECT 47MF
1-124-234-00 ELECT 22MF
1-124-234-00 ELECT 22MF
1-124-473-11 ELECT 1000MF
1-163-009-11 CERAMIC CHIP 0.001MF
1-163-009-11 CERAMIC CHIP 0.001MF
1-163-009-11 CERAMIC CHIP 0.001MF
1-124-791-11 ELECT 1MF
1-124-791-11 ELECT 1MF
1-163-015-11 CERAMIC CHIP 0.0033MF
1-163-015-11 CERAMIC CHIP 0.0033MF
1-163-097-00 CERAMIC CHIP 15PF
CONNECTOR
1-537-005-11 JACK BOARD
Ic
8-759-700-42 IC NJM2904D
JUMPER RESISTOR
1-249-997-11 CARBON MELF 0 5%
1-249-997-11 CARBON MELF 0 5%
1-249-997-11 CARBON MELF 0 5%
1-249-997-11 CARBON MELF 0 5%
1-249-997-11 CARBON MELF 0 5%
TRANSISTOR
8-729-175-71 TRANSISTOR 28¢2757-132
8-729-175-71 TRANSISTOR 28C2757-132
8-729-271-32 SRANSISTOR 2SC1622A
8-729-271-32 TRANSISTOR 2SC1622A
8-729-271-32
TRANSISTOR
2SC1622A
RESISTOR
1-216-085-00 METAL GLAZE 33K 5%
1-216-093-00 METAL GLAZE 68K 5%
SECTION 5
ELECTRICAL PARTS LIST
@ -XX, -X mean standardized parts, so
they may have some difference frome
the original one.
@ SEMICONDUCTORS
In each case, U: yz, for example:
UA....: wA...., UPA....: #PA....,
UPB....: wPB...., UPC....: #PC....,
UPD....: #PD....
@ CAPACITORS
MF: #F, PF: uu
@ COILS
MMH: mH, UH: “#H
Description Remark
METAL GLAZE 82 5% 1/10W
METAL GLAZE 180 5% 1/10W
METAL GLAZE 47K 5% 1/10W
METAL GLAZE 15K 5% 1/10W
METAL GLAZE 2.2K 5% 1/10W
METAL GLAZE 470 5% 1/10W
METAL GLAZE 1K 5% 1/10W
METAL GLAZE 2.2K 5% 1/10W
METAL GLAZE 680 5% 1/8W
METAL GLAZE 75 5% 1/8W
METAL GLAZE 68K 5% 1/10W
METAL GLAZE 68K 5% 1/10W
METAL GLAZE 100K 5% 1/10W
METAL GLAZE 100K 5% 1/10W
METAL GLAZE 120K 5% 1/10W
METAL GLAZE 120K 5% 1/10W
METAL GLAZE 100K 52% 1/10W
METAL GLAZE 100K 5% 1/10W
METAL GLAZE 1K 5% 1/10W
METAL GLAZE 3.3K 5% 1/10W
METAL GLAZE 1K 5% 1/10W
METAL GLAZE 3.3K 5% 1/10W
METAL GLAZE -330 5% 1/10W
METAL GLAZE 330 5% 1/8W
METAL GLAZE 1K 5% 1/10W
METAL GLAZE 1K 5% 1/10W
METAL GLAZE 3.3K 5% 1/10W
METAL GLAZE 680 5% 1/10W
METAL GLAZE 3.3K 5% 1/10W
METAL GLAZE 680 5% 1/8W
METAL GLAZE 680 5% 1/8W
METAL GLAZE 10K 5% 1/10W
METAL GLAZE 10K 5% 1/10W
METAL GLAZE 10K 5% 1/10W
METAL GLAZE 10K 5% 1/10W
METAL GLAZE 180K 5% 1/10W
METAL GLAZE 180K 5% 1/10W
METAL GLAZE 75 5% 1/10W
METAL GLAZE 1.2K 5% 1/10W
METAL GLAZE 47K 5% 1/10W
METAL GLAZE 47K 5% 1/10W
VARIABLE RESISTOR
1-228-989-00 RES, ADJ, CARBON 470
HK IK KI KIKI III IK II KK KK KKK IK KICK IK IK IK IKK IK KR KEK RAK EKER EK EK
*A-6768-173-A SP-10 BOARD, COMPLETE
KKK KKEKKKREKEKEREKREKK
JACK
Due to standardization, replacements in
the parts list may be different from the
parts specified in the diagrams or the
components used on the set.
RESISTORS
All resistors are in ohms
METAL: Metal-film resistor
METAL OXIDE: Metal Oxide-film resistor
F : nonflammable
Items marked “%*x” are not stocked
since they are seldom required for
routine service. Some delay should be
anticipated when ordering these items.
Remark | Ref.No Part No.
ROO3) = =1-216-023-00
ROO4 = 1-216-031-00
ROOS 1-216-089-00
ROO6 = =1-216-077-00
ROO7 #1-216-057-00
ROO8 1-216-041-00
20% 16V ROO9 = 1-216-049-00
20% 16V RO1O = 1-216-057-00
20% 16V RO11 1-216-194-00
20% 16V RO12 = 1-216-171-00
20% 16V . ;
R013. =: 1-216-093-00
20% 16V RO14 =: 1-216 -093-00
20% 16V RO15 1-216-097-00
20% 16V R016 =1-216-097-00
20% 16V R017 =1-216-099-00
20% 16V
RO18 1-216-099-00
20% 16V RO19 =. 1-216-097-00
20% 16V RO20 = 1-216-097-00
20% 10V RO21 1-216-049-00
10% 50V RO22 1-216-061-00
10% 50V
R023. =1-216-049-00
10% 50V RO24 1-216-061-00
20% 50V R025 1-216-037-00
20% 50V RO26 1-216-186-00
10% 50V RO27 = 1-216-049-00
10% 50V
RO28 1-216-049-00
5% 50V RO29 = 1-216-061-00
RO30 = ©1-216-045-00
RO31 1-216-061-00
RO32 1-216-194-00
R033. =: 1-216-194-00
RO34 §=©1-216-073-00
RO35 = =1-216-073-00
RO36 =: 1-216 -073-00
R037 =1-216-073-00
RO38 1-216-103-00
RO39 = 1-216 -103-00
R040 =1-216-022-00
1/8W R041 1-216-051-00
1/8W R042 = 1-216-089-00
1/8W
1/8W R043 =: 1-216-089-00
1/8W
RVOOL
1/10W J201
1/10W
1-565-841-11 JACK, PIN 2P

Ref.No Part No.
Description
CAPACITOR
C101 A.1-136-937-11 FILM 0.22MF
C102 A.1-164-246-11 CERAMIC 0.0022MF
C103 A.1-164-246-11 CERAMIC 0.0022MF
C104 A.1-128-067-11 ELECT 22MF
C105 A.1-136-752-11 FILM 0.01MF
C201 1-124-943-11 ELECT 39MF
C202 = =1-126-613-51 ELECT 10MF
C203 A.1-124-559-51 ELECT 1000MF
C204 A.1-124-559-51 ELECT 1000MF
C205 = 1-124-791-11 ELECT 1MF
DIODE
D101 8-719-510-06 DIODE S1WB60
D102 ©8-719-980-47 DIODE PC101
D201 8-719-907-40 DIODE ERB43-08
D202 8-719-981-00 DIODE ERB81-004
D204 8-719-200-82 DIODE 11ES2
D205 8-719-200-82 DIODE 11ES2
D206 8-719-114-87 DIODE RD18USB2
D207 8-719-107-87 DIODE 03P2M
FUSE
F101 A.1-576-114-11 FUSE
Ic
IC1014.8-759-995-07 IC MA1040
1C201A\.8-759-982-26
1¢202 8-759-908-15
IC TA78LO12AP
IC TL431CLP
COIL
L101 A.1-424-362-11
L201 A.1-413-372-11
FILTER, LINE
COIL, REGULATOR
RESISTOR
R101 A\.1-215-904-11
R102 A\.1-205-964-11
R103 A\.1-214-844-00
R104 f\.1-214-844-00
R105 A\.1-249-417-11
R106 = 1-260-040-11
R201 1-249-407-11
R202 = 1-249-423-11
R203 1-249-419-11
R204 =: 1-247-745-11
R206 1-260-040-11
R207 = 1-260-040-11
METAL OXIDE
WIREWOUND
METAL
METAL
CARBON
CARBON
CARBON
CARBON
CARBON
CARBON
CARBON
CARBON
100K
5.6
150
150
1K
470K
150
3.3K
1.5K
330
470
470
1%
1%
5%
5%
5%
5%
5%
5%
5%
5%
20%
20%
20%
20%
20%
20%
20%
20%
20%
ew
2w
1/2W
1/2W
1/4W
1/2W
1/4W
1/4W
1/4W
1/2W
1/4W
1/4W
Remark
250V
400V
400V
400V
630V
25V
50V
10V
10V
50V
|
ISP-10|
[LD-21]
[CA-29
Ref.No Part No. Remark
VARIABLE RESISTOR
RV201 1-224-247-XX RES, ADJ, METAL GLAZE 100
TRANSFORMER
T101 A.1-450-048-11 TRANSFORMER, CONVERTER
HICK
KK
KIKI
KK
KEK
KIRK
KKK
KKK
KKK
KIKI
KIKI
KIKI
KK IK
IKI
IKI
KIKI
II
III
I.
LD-21 BOARD
KKKKKKKKKEKK
DIODE
D301 8-719-955-32 DIODE PG5531KX
RESISTOR
R301 1-249-413-11 CARBON 470 5% 1/4W
IKI
K
KIKI
KK
IK
KKK
ERIK
KIKI
KIK
IKK
IKK
IKK
III
II
IK
III
KIKI
II
III
CA-29 BOARD
KRKKKEKEKRKK
1-562-952-11 CONNECTOR 12P
HK
K
IKK
KKK RIK
IKK
IRI
IK
IK IK
KKK
IK
KIKI
IKI
III
III
IKK
IK
IKI
KEI
RII
MISCELLANEOUS
KKKKKKKKKKKER
A\.1-551-908-31 CORD, POWER, EULO PLUG
S101 A. - - - SWITCH, PUSH (AC POWER) (1 KEY)
III IKK IKKE KKK IK KIKI KK II KIKI IKK IK IK IK KK KIKI RII KK III II IIR II III
ACCESSORIES AND PACKING MATERIALS
KKKKKKKK EKER KK IKKE KKK KKKKEKKKRKKK
Part No. Description Remark
X-2399-204-1 CASE ASSY, LOWER
*2-399-273-01
*2-399-276=02
2-399-278-01
3-786-065-11
CASE, UPPER
INDIVIDUAL CARTON
PLATE, PROTECTION
MANUAL, INSTRUCTION
HK IK IK RIK IKK RIKER IRR IKK IKI KIKI KKK IKI IKI II KIKI RIK
HARDWARE LIST
KKKKKKKKKKEKK
SCREW
4-804-160-21 SCREW, SELF-TAPPING, +B 3X6
7-621-255-40 SCREW +P 2X6
7-621-773-95 SCREW +P 2.6X6
7-628-254-10 SCREW +PS 2.6X6
7-682-547-04 SCREW +P 3X6
IKK IKI RIK KKK KIKI KIKI KK IKK KIKI KKK IKK IKK IK III IKI III KIKI IIIA
When indicating parts by refer-
ence number, please include the
board name.
line with mark are critical for safety.
Note: The th mark A ‘re ert by mark A or dotted
Replace only with part number specified.

HVA-G1 |
SECTION 6
ELECTRICAL ADJUSTMENTS
5-1. DC VOLTAGE ADJUSTMENT (SP-10 board) AV-7 BOARD (COMPONENT SIDE)
Measuring point | D204(anodey) sd
Measuring instrument
Adjustment element
Specification
CNO003
VIDEO!
OUT
(Adjustment Method)
1. Adjust to 6.8V with RV201.
i449 OOOAODA
SP-10 BOARD (COMPONENT SIDE)
Figure 3
Figure 1
5-2. OUTPUT LEVEL ADJUSTMENT (AV-7 board)
pattern genarator
(CN1 pin @)
Measuring point
Measuring instrument
Adjustment element
Signal
Specification
(Adjustment Method}
1. VIDEO IN CNI1 pin @ for the video input colour-bar
signal,
2. VIDEO OUT CN383 should be terminated with a 75Q
load.
Adjust output level to 1 Vp-p with RV1.
Figure 2
English
:
20A0639-1
Sony
Corporation
Printed
in
Japan
9-972-648-21
Personal
Video
Group
,
©1990.1
14
Published
by
A/V
Engineering
Service
Dept.