Sony STRVX-700 Service manual

STR-VX700
SERVICE MANUAL
This set is the tuner and amplifier section in MHC-VX700AV.
SPECIFICATIONS
The following measured at AC 120, 220, 240V 50/60 Hz DIN power output (Rated) (FRONT)
120 + 120W (6 at 1kHz DIN)
Continuous RMS power output (Reference)
FRONT SPEAKER: 150 + 150W (6 at 1kHz, 10% THD) CENTER SPEAKER: 60W (8 at 1kHz, 10% THD) REAR SPEAKER: 40 + 40W (8 at 1kHz, 10% THD)
Inputs MD/VIDEO 1 IN (phono jacks): voltage
450/250mV, impedance 47k AV INPUT AUDIO (phono jacks): voltage 250mV, impedance 47k MIX MIC 1/2 (phone jack): sensitivity 1mV, impedance 10k
Output MD/VIDEO 1 OUT (phono jacks): voltage
450/250mV, impedance 1k PHONES (stereo phone jack): accepts headphones of 8 or more. FRONT SPEAKER: accepts impedance of 6 to 16 CENTER SPEAKER: accepts impedance of 8 to 16 REAR SPEAKER: accepts impedance of 8 to 16 SUPER WOOFER: Voltage 1V, impedance 1k
Tuning range Thai models: 531 – 1,602kHz (with the AM tuning
Other models: MW: 531 – 1,602kHz (with the MW tuning
Intermediate frequency 450kHz Antenna AM loop antenna External antenna terminal
General
Power requirements Thai models: 220V AC, 50/60Hz Other models: 120V, 220V or 230 – 240V AC, 50/60Hz
Power consumption 340W Dimensions (w/h/d) Approx. 288 × 205 × 375mm Mass Approx. 8.7kg
Design and specifications are subject to change without notice.
E Model
interval set at 9kHz) 530 – 1,710kHz (with the AM tuning interval set at 10kHz)
interval set at 9kHz) 530 – 1,710kHz (with the MW tuning interval set at 10kHz) SW: 5.95 – 17.90MHz (with the SW tuning interval set at 5kHz)
Adjustable with voltage selector
Tuner section
FM stereo, FM/AM superheterodyne tuner
FM tuner section
Tuning range 87.5 – 108.0MHz Antenna terminals 75 unbalanced Intermediate frequency 10.7MHz
MICROFILM
FM STEREO/FM-AM RECEIVER
TABLE OF CONTENTS
1. GENERAL ·········································································· 3
2. DISASSEMBLY
2-1. Sliding Panel Assembly ······················································5 2-2. Level Slider ········································································ 5
3. SERVICE MODE······························································ 6
4. DIAGRAMS
4-1. Circuit Boards Location ····················································· 9 4-2. Block Diagrams
• Main Section ·································································· 10
• Power Section ································································ 11 4-3. Printed Wiring Board Main Section ································ 13 4-4. Schematic Diagram Main (1/2) Section ·························· 14 4-5. Schematic Diagram Main (2/2) Section ·························· 15 4-6. Schematic Diagram Power Amp Section ························ 16 4-7. Printed Wiring Board Power Amp Section······················ 17 4-8. Schematic Diagram Display Section ······························· 18 4-9. Printed Wiring Board Display Section ···························· 19 4-10. Schematic Diagram Sliding Panel Section ······················ 20 4-11. Printed Wiring Board Sliding Panel Section ··················· 21 4-12. Schematic Diagram Surround Amp Section···················· 22 4-13. Printed Wiring Board Surround Amp Section················· 23 4-14. Printed Wiring Board Trans Section································ 24 4-15. Schematic Diagram Trans Section ·································· 25 4-16. Schematic Diagram AV/Mic Section······························· 26 4-17. Printed Wiring Board AV/Mic Section ···························· 27 4-18. IC Block Diagrams ··························································· 28 4-19. IC Pin Function ································································ 31
5. EXPLODED VIEWS
5-1. Case and Sliding Panel Section ········································ 34 5-2. Front Panel Section ·························································· 35 5-3. Slide Mechanism Section ················································· 36 5-4. Circuit Boards and Back Panel Section···························· 37
6. ELECTRICAL PARTS LIST········································· 38
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY MARK ! OR DO TTED LINE WITH MARK ! 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 PUBLISHED BY SONY.
2
Front Panel
SECTION 1
GENERAL
123 45 6 7
ef
ed
es ea e;
wl
wk
wj
wh
1 MOVIE button 2 MUSIC button 3 GAME button 4 PLACE button 5 P FILE button 6 EFFECT ON/OFF button 7 OPEN/CLOSE button 8 TUNER BAND button 9 STEREO/MONO button q; MEMORY button qa KARAOKE PON/MIX button qs MIC LEVEL/ECHO VOL dial qd MIX MIC1 jack qf GROOVE button qg VOLUME dial qh M + button qj ENTER/NEXT button qk MULTI JOG STATION dial
ws
qgqj qhwg
qf
ej ehqkqlwawdwf w;
ql m – button w; NON-STOP button wa EDIT button ws FLASH button wd PLAY MODE button wf REPEAT button wg PHONES jack wh LOOP button wj CLOCK/TIMER SET button wk TIMER SELECT button wl FUNCTION button e; PROLOGIC button ea DSP button es DBFB button ed DISPLAY/DEMO button ef I/1 (POWER) button eg MIX MIC2 jack eh KEY CONTROL (#) ej KEY CONTROL (2)
8
9
q;
qa
qs
eg
qd
3
Rear Panel
7
1
6
2
53
4
1 SYSTEM CONTROL jack 2 ANTENNA terminal 3 CENTER SPEAKER terminal 4 REAR SPEAKER terminal 5 MONITOR OUT jack 6 FRONT SPEAKER terminal 7 MD/VIDEO 1 jack
4
SECTION 2
DISASSEMBLY
Note: Follow the disassembly procedure in the numerical order given.
2-1. SLIDING PANEL ASSEMBLY
4
Flat type cable (19 core)
Slide mechanism
1
Push the OPEN/CLOSE button to
open the Sliding panel assembly.
5
Sliding panel assembly
2-2. LEVEL SLIDER
(Perform this DISASSEMBLY after the front panel is removed.)
1
Screw (BVTP2.6 × 8)
3
Top bracket
4
Four screws
(BVTP2.6 × 8)
5
Holder (L) assembly
B
A
2
Screw
(BVTP2.6 × 8)
2
Screw (BVTP 3 × 8)
3
Holder level
8
Remove the Level slider direction of arrow.
7
Holder (R) assembly
A
NOTE FOR INSTALLATION :
Attach in the reverse order, but make sure the rollers (A, B) of the holder (L) assembly and holder (R) assembly fit into the grooves of the level slider.
B
6
Four screws (BVTP2.6 × 8)
5
SECTION 3
SER VICE MODE
Connections and Operations When Used Alone
Normally, use the unit connected to the HTC-VX500 as follows. Basically, when servicing the unit, connect the unit as follows.
UNIT
SYSTEM CONTROL 17P
AC IN
Even when not connected to the HTC-VX500, the unit can operate alone as it mounts a power supply (some functions will however not be available).
MC Cold Reset
• The cold reset clears all data including preset data stored in the RAM to initial conditions. Execute this mode when returning the set to the
customer.
Procedure:
1. Press three buttons EDIT , ENTER/NEXT , and DISPLAY/DEMO simultaneously.
2. The fluorescent indicator tube becomes blink instantaneously, and the set is reset.
CD Delivery Mode (This mode can be used only when the HTC-VX500 is connected.)
• This mode moves the pick-up to the position durable to vibration. Use this mode when returning the set to the customer after repair.
Procedure:
1. Press 1/1 button to turn the set ON.
2. Press LOOP button and 1/1 button simultaneously.
3. A message “LOCK” is displayed on the fluorescent indicator tube, and the CD delivery mode is set.
MC Hot Reset
• This mode resets the set with the preset data kept stored in the memory . The hot reset mode functions same as if the po wer cord is plugged
in and out.
Procedure:
1. Press three buttons REPEAT , ENTER/NEXT , and DISPLAY/DEMO simultaneously.
2. The fluorescent indicator tube becomes blink instantaneously, and the set is reset.
HTC-VX500
Sled Servo Mode (This mode can be used only when the HTC-VX500 is connected.)
• This mode can run the CD sled motor freely. Use this mode, for instance, when cleaning the pick-up.
Procedure:
1. Select the function “CD”.
2. Press three buttons FLASH , ENTER/NEXT , and KARAOKE PON/MIX simultaneously.
3. The Sled Servo mode is selected, if “CD” is blinking on the fluorescent indicator tube.
4. With the CD in stop status, press M + button move the pick-up to outside track, or – m button to inside track.
5. To exit from this mode, perform as follows:
1) Move the pick-up to the most inside track.
2) Press three buttons in the same manner as step 2.
Note:
• Always move the pick-up to most inside track when exiting from this mode. Otherwise, a disc will not be unloaded.
• Do not run the sled motor excessively, otherwise the gear can be chipped.
Change-over of FUNCTION Name
• The FUNCTION name of external input terminal can be changed over to VIDEO 1 or MD. With the FUNCTION selected to “MD”, about
5dB mute is applied to the input gain.
Procedure:
1. Press 1/1 button to turn the set OFF.
2. Press 1/1 button together with FUNCTION button, and the power is turned on, the display of fluorescent indicator tube changes to
“MD” or “VIDEO 1” instantaneously, and thus the FUNCTION is changed over.
Change-over of AM Tuner Step between 9kHz and 10kHz
• A step of AM channels can be changed over between 9kHz and 10kHz.
Procedure:
1. Press 1/1 button to turn the set ON.
2. Select the function “TUNER”, and press TUNER/BAND button to select the BAND “MW”.
3. Press 1/1 button to turn the set OFF.
4. Press ENTER/NEXT and 1/u buttons simultaneously, and the display of fluorescent indicator tube changes to “MW step 10” or
“MW step 9”, and thus the channel step is changed over.
6
LED and Fluorescent Indicator Tube All Lit, Key Check Mode (Do not connect the HTC-VX500.)
Procedure:
1. Press 1/1 button to turn the set ON.
2. Press the OPEN/CLOSE button to open the sliding panel.
3. Press three buttons DELAY , ENTER/NEXT , and DISPLAY/DEMO simultaneously.
4. LEDs and fluorescent indicator tube are all turned on. Each time the MO VIE b utton is pressed, the f luorescent indicator tube lights up as follows: lights up completely n lights up partially 1 n lights up partially 2 n lights up completely.
5. Press GAME button, and the key check mode is activated.
6. In the key check mode, the fluorescent indicator tube displays “K @@ V0 J0”. Each time a button is pressed, “K”value decreases. However, once a button is pressed, it is no longer taken into account. (@@ means the total of buttons) “J” Value increases like 1, 2, 3 ... if rotating JOG knob in “+” direction, or it decreases like 0, 9, 8 ... if rotating in “-” direction. “V” Value increases like 1, 2, 3 ... if rotating VOLUME knob in “+” direction, or it decreases like 0, 9, 8 ... if rotating in “-” direction.
7. Pressing all buttons lights up the fluorescent indicator tube completely.
8. To exit from this mode, press three buttons EDIT , ENTER/NEXT and DISPLAY/DEMO simultaneously. (COLD RESET)
9. To exit from this mode, press three buttons in the same manner as step 1, or disconnect the power cord.
CD, TAPE Deck Aging Mode (This mode can be used only when the HTC-VX500 is connected.)
This mode can be used for checking the operations of the CD player and tape deck.
• When problems occur;
Aging stops, and the stopped state is displayed on the fluorescent indicator tube.
• When no problems;
Aging continues.
Preparations:
• Set the CD on the DISC1 tray.
• Insert a commercially available tape for recording (tapes which contents can be erased, etc.) in decks A and B.
Setting the aging mode:
Press the PLAY MODE button, ENTER/NEXT button, and STEREO/MONO button together. When the aging mode is set, the CD roulette mark blinks. To exit the mode, press the 1/1 button and turn OFF the power.
Sequence:
The aging mode is executed in the following sequence. If the function is set to “CD” when the aging mode is set, aging is performed starting from the CD player. When set to “TAPE A” or “TAPE B”, aging is started from deck A. If the function is set to others, aging will not be started until the function is switched to CD or TAPE.
Aging of CD player (12 minutes)
Aging of deck A
Aging of deck B
12 minutes
Display of status:
• The aging status is displayed on the fluorescent indicator tube.
• Normally, the CD player displays the remaining aging time. But if operations ended abnormally, it displays the cause.
• During the aging of the tape deck, the operations performed will be displayed. If operations ended abnormally, this will be di splayed at the
fluorescent display tube.
CD Player
• During normal operations:
Display of fluorescent indicator tube
**1-@@
**: Displays “CD” and the remaining aging time (minutes) alternately. The remaining aging time is counted down from 12.
@@: Track number being accessed.
7
• When operations end abnormally:
Display of fluorescent display tube
Display
NO DISC ERR FOCUS1 ERR FOCUS2 ERR GFS ERR FBIAS ERR SENSOR ERR TABLE ERR TRAY ERR
Tape Deck
Display of Operations
T APE A AG-1 T APE A AG-2 T APE A AG-3 T APE A AG-4 T APE A AG-5 TAPE B AG-1 TAPE B AG-2 TAPE B AG-3 TAPE B AG-4 TAPE B AG-5
Main Cause
DISC 1 is NO DISC from the beginning Focus is not imposed properly The focus deviated several times after the disc rotated normally GFS ERROR Error during focus bias adjustment DISC 1 was found to be NO DISC by the disc sensor The table did not rotate normally The tray containing the BD did not operate normally
Operation
T APE A REW T APE A FWD
T APE A FF
T APE A REV T APE A REW TAPE B REW TAPE B FWD
TAPE B FF
TAPE B REV TAPE B REW
Shutoff 2 minute playback 20 seconds or shutoff 2 minutes playback Shutoff Shutoff 2 minute playback 20 seconds or shutoff 2 minute playback Shutoff
Timing of Ending
Operations during aging
• Operations are performed in the following sequence during aging.
<CD player>
1. The CD tray rotates and disc 1 is selected.
2. Chucking is performed.
3. TOC is read.
4. Track 1 played back for 2 seconds.
5. The last track is played back for 2 seconds.
6. 1 to 5 is repeated.
7. After 12 minutes of aging, aging is switched to the tape deck.
<T ape Deck>
1. The tape in deck A is rewound to the head.
2. The FWD side is played back for 2 minutes.
3. The tape is fast forwarded (FF) for 20 seconds. The following procedure is performed when the tape end is reached before the 20 seconds.
4. The REV side is played back for 2 minutes.
5. The tape is rewound to the head (REW).
6. The tape in deck B is rewound to the head.
7. The FWD side is played back for 2 minutes.
8. The tape is fast forwarded (FF) for 20 seconds. The following procedure is performed when the tape end is reached before the 20 seconds.
9. The REV side is played back for 2 minutes.
10. The tape is rewound to the head (REW).
11. Aging is switched to the CD player.
8
SECTION 4
MIC / ECHO board
POWER AMP board
SURR AMP board
SURR SPK board
PRIMARY board
ENCAPSULATED COMPONENT (AM/FM TUNER)
SECONDARY board
HEADPHONE board
CONNECTOR board
LOADING PANEL board
DIAGRAMS
PANEL Aging Mode
This mode is used for opening and closing the sliding panel continuously.
Setting the aging mode :
With the set at standby condition, press FLASH button, ENTER/NEXT button and STEREO/MONO button together. The aging will start and sliding panel will follow aging sequence as described below.
• When problems occur ; Aging stops and “AGING ERROR” is displayed on the fluorescent indicator tube.
• When no problems; Aging is carried out repeatedly. After 65000 times, “AGING STOP” is displayed and aging stops.
Aging Sequence
Stops for one second in the opened state
Panel open Panel close
n
Counts up
n n
Stops for one second in the closed state
Each time the DISPLAY/DEMO button is pressed, the display switches as follows.
Aging @@@@@ (No. of agings carried out) OP Max @.@@ (Maximum time taken for OPEN:In seconds) OP Min @.@@ (Minimum time taken for OPEN:In seconds)
4-1. CIRCUIT BOARDS LOCATION
CL Max @.@@ (Maximum time taken for CLOSE:In seconds) CL Min @.@@ (Minimum time taken for CLOSE:In seconds)
MOTOR board
FRONT AV board
PANEL board
DETECTOR board
MAIN board
99
STR-VX700
4-2. BLOCK DIAGRAMS MAIN SECTION
1
SYSTEM
CONTROL
HTC-VX500
AV INPUT
(VIDEO 2)
VIDEO 1
FM/AM TUNER
TUNER UNIT IS
SUPPLIED AS
THE ASSEMBLED
BLOCK
B
POWER
SECTION
16
CN101
TO
J6301
J101
MD/
2 7
9
5
6 14 16 17 13
VIDEO
AUDIO L
IN L
OUT L
COM DIN
COM DATA
ST CE
COM CLK
MUTE
STEREO
TUNED
POWER ON/OFF
PRO-LOG RLY
AC1 AC2
VF1 VF2
ST L
R-CH(CD R)
R-CH(PB R)
R-CH(REC R)
IIC DATA IIC CLK
AC1 AC2
FL601
FLUORESCENT
INDICATOR
TUBE
DISPLAY CONTROL
12
I
1
64
I
61 59
I
33 31
I
23
G0
G15
S0
S35
IC601
RESET
DATA
CLK
VIDEO
EQ
IC111(1/2)
TU
69
CD
68
V2
67
TC
66
MD/V1
65
R-CH
AV SWITCH
Q6301
16 15 14
CS
13
KEY
MATRIX
MULTI JOG
STATION
S653
VOLUME
S652
SLIDING SENSOR
IC504,Q513
REMOTE SENSOR
IC503
SELECT
SWITCH
15
4
22
SPEANA CONT SPEANA0
26
SPEANA1
27
AV IN
41
I2C DATA
55
I2C CLK
56
92
DATA OUT
90
DATA IN LAT
89 93
CLK ST MUTE
86
STREO
87 88
TUNED POWER ON/OFF
94
PRO-LOG RLY
4
35
FL DATA
36
FL CLK
37
FL LAT
38
FL RESET
28
KEY0
I
I
31
KEY3
JOG A
20
21
JOG B
VOL A
18 19
VOL B
SENSOR IN
42
SIRCSN
43
X501
5MHz
SPEANA
SELECTOR
IC505
Y
Z
9 10
X2 X1
10 11
R-CH
1
Y1
2
Y2
3
Z1
5
Z2
MASTER CONTROL
XT2 XT1
2
25
VACS
IC501
13 14
EQ
AMP
SPEANA
BPF FILTER
17 f1 16
f2 15 f3 14 f4 13 f
PRO-LOG LAT2 PRO-LOG LAT1
PRO-LOG CLK
PRO-LOG DATA
PANEL OPEN
PANEL CLOSE
X502
32kHz
IC506
LINE
GEQ DATA
GEQ CLK GEQ LAT
DBFB B2 DBFB B1
TA MUTE
LED
RESET
ACCUT
42 41
4
59
60 57 58
DOLBY PRO-LOGIC
IC300
L IN
IN
99 98
100
96 97 95
50
54 57
70 72 73
15
32
82 83
84 85
61
R-CH
4
ENABLE2
49 50 54 51 5352
1
1 2 3
5 6
7
I .
I .
.
D504
5 6
LED
ON/OFF
SWITCH
Q502-512
Q531-540
RESET
SWITCH
Q501
IC891
MOTOR DRIVER
PANEL
OPEN/CLOSE
S892
2
10
CLK DATA
ENABLE
PANEL
LED
L OUT
S OP OUT C OP OUT
RESET
IC502
M
OSC2
OSC1
24
33 31
47
46
X301
8MHz
76
MIC AMP
IC6001(2/2)
D507
M891
PANEL
MOTOR
+5.6V
VOLUME
IC111(2/2)
MICON
INTERFACE
33
32 34
123
RV6001(2/2)
ECHO VOL
36
57
40
R-CH
38
39
AMP
IC361
5 3
8 1
LPF 2 OUT LPF 1 IN
7 1
MUTE
SWITCH
Q121
ECHO PROCESSOR
IC6002
IC113(2/2)
MUTE
Q361,371
AMP
DBFB
SELECTOR
IC112
MUTE
Q183
SW
Q132
RV6001(1/2)
MIC LEVEL
L-CH
S/W
MUTE
DET
D131
MIC AMP IC6001(1/2) 1
L+R
S OUT C OUT
TA MUTE
3
• R CH: Same as L ch
• SIGNAL PATH : FM : AUDIO(AV INPUT) : MD/VIDEO : PB : VIDEO(AV INPUT) : REC : CD
C
POWER SECTION
J6001
MIX
MIC 1
J6002
MIX
MIC 2
1010
POWER SECTION
VIDEO
RY781
STR-VX700
J781
VIDEO OUT
C
MAIN
SECTION
S/W
C OUT
S OUT
L+R
L-CH
TA MUTE
POWER AMP
IC4001(1/2)
POWER AMP
IC4001(2/2)
MUTE Q181
1
18
POWER AMP
IC901
20
8
MUTE
SWITCH
Q901
10
OVER LOAD
13
OVER LOAD
15
OVER LOAD
DET
Q4002
DET
Q4052
DET
Q952
R-CH
R-CH
RY741
RY751
R-CH
D761
D751
D746
R-CH
SUPER WOOFER
TB201
CENTER
SPEAKER
L
REAR
SPEAKER
R
TB751
FRONT
L
SPEAKER
PHONES
J755
B
MAIN
SECTION
16
MUTE
POWER ON/OFF
PRO-LOG RLY
AC1 AC2
VF1 VF2
D852,853
POWER ON
MUTE
Q852
OVER LOAD
SWITCH
Q851
RELAY DRIVE
Q741
1 4
2
PROTECTOR
PROTECTOR
IC851
VCC ON
MUTE
7
SWITCH
Q853
ST+10V
UNREG
+12V
+7V
+5.6V
D813
+5V
M901
M
6
FAN
MOTOR
SURR +B
SURR -B
-7V
+B
-B
VG
ST+10V
3 1
REG
IC804
+7V REG
3
IC801
+5.6V REG
3
IC803
FAN MOTOR
REG
Q731,732
-7V REG
3
IC802
VG REG
Q801
1
1
2
RECT
D810,811
T901
POWER
TRANSFORMER
+
RECT
D805-808
AC IN
+
RECT D801
VOLTAGE
SELECTOR
S871
EA,HK,MY,SP MODEL
• R CH : Same as L ch
• SIGNAL PATH
: FM
: VIDEO (AV INPUT)
• Abbreviation
+ –
RECT
D802, 803
RECT D809
AC1 AC2
VF1 VF2
EA : Saudi Arabia model HK : Hong Kong model MY : Malaysia model SP : Singapore model
1111
THIS NOTE IS COMMON FOR PRINTED WIRING
d
BOARDS AND SCHEMATIC DIAGRAMS. (In addition to this, the necessary note is printed in each block.)
Waveforms DISPLAY Section
1
For schematic diagrams.
Note:
• All capacitors are in µF unless otherwise noted. pF: µµF 50 WV or less are not indicated except for electrolytics and tantalums.
• All resistors are in and 1/ specified.
f
2 : nonflammable resistor.
1 : fusible resistor.
C : panel designation.
U : B+ Line.
V : B– Line.
H : adjustment for repair.
• Voltages and waveforms are dc with respect to ground
• Voltages are taken with a VOM (Input impedance 10 MΩ).
• Waveforms are taken with a oscilloscope.
• Circled numbers refer to waveforms.
• Signal path.
• Abbreviation
: internal component.
The components identified by mark ! or dotted line with mark ! are critical for safety. Replace only with part number specified.
under no-signal (detuned) conditions. Voltage variations may be noted due to normal produc-
tion tolerances. Voltage variations may be noted due to normal produc-
tion tolerances.
F : FM f : AM L : AUDIO (AV INPUT) g : MD/VIDEO i : VIDEO (AV INPUT) E : PB (DECK A) G : REC (DECK B) J : CD
HK : Hong Kong model SP : Singapore model MY : Malaysia model TH : Thai model EA : Saudi Arabia model
4
W or less unless otherwise
For printed wiring boards.
Note:
X : parts extracted from the component side.
Y : parts extracted from the conductor side.
x : parts mounted on the conductor side.
a
b : Pattern from the side which enables seeing.
: Through hole.
f
: internal component.
• Indication of transistor
C
Q
These are omitte
EB
C
EB
These are omitted
5.5Vp-p
5MHz
IC501 0 X2
2
5Vp-p
32.768kHz
IC501 qd XT2
1212
STR-VX700
4-3. PRINTED WIRING BOARD MAIN SECTION
• Semiconductor
Location
Ref. No. Location
D101 B-11 D102 B-11 D131 E-9 D742 F-8 D743 F-10 D746 F-11 D751 F-11 D752 E-10 D761 E-12 D781 G-10 D801 E-4 D802 F-5 D803 E-4 D804 C-2 D805 F-4 D806 F-4 D807 F-4 D808 F-4 D810 E-4 D811 E-4 D812 C-2 D813 B-2 D851 F-8 D852 G-8 D853 G-8
• Refer to page 9 for Circuit Boards Location.
IC111 C-10 IC112 E-10 IC113 E-9 IC300 A-7 IC361 A-5 IC801 B-2 IC802 C-3 IC803 B-2 IC804 D-4 IC851 G-9
Q121 B-2 Q132 D-10 Q182 E-11 Q183 E-8 Q361 B-4 Q371 A-4 Q731 F-11 Q732 G-10 Q741 F-9 Q801 C-2 Q851 G-9 Q852 H-8 Q853 H-8 Q854 G-7 Q855 G-6
1313
STR-VX700
4-4. SCHEMATIC DIAGRAM MAIN (1/2) SECTION
• Refer to page 13 for Printed Wiring Board..
• Refer to page 28 to 29 for IC Block Diagrams.
22
26
TO HTC-VX500
18
560k
560k
2.7k
2.7k
151515
560k
560k
15
1414
STR-VX700
VG REG
14
14
14
14
16
22
16
16
20
26
25
1000 35V
71V
71V
2SC2958
1.2k
20
1.5
1.5
1.5
1.5
1.5 k
0.8
0.1
Q854 2SA124ES
Q855 2SC2958L
R857 22k
0
Q854, 855
RELAY SWITCH
4-5. SCHEMATIC DIAGRAM MAIN (2/2) SECTION
• Refer to page 13 for Printed Wiring Board.
• Refer to page 29 for IC Block Diagrams.
The components identified by mark ! or dotted line with mark ! are critical for safety. Replace only with part number specified.
1515
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