Block Diagrams; Overall Block Diagram - Sony DVP-NS72HP Service Manual

BLOCK DIAGRAMS

3-1. OVERALL BLOCK DIAGRAM

SWITCHING REGULATOR
SRV2020WW
(DVP-NS78H: EXCEPT CND/NS78HP)
SRV2019UC
(DVP-NS72HP/NS77H: US/
NS77HP: MX/NS78H: CND)
!
TRANSFORMER
O/I POWER
• Abbreviation
BR : Brazilian Model
CND : Canadian Model
E : Latin America Model
KR : Korea Model
MX : Mexican Model
RUS : Russian Model
SP : Singapore Model
TH : Thailand Model
Notes:
Special keys have been written in
IC103 (HDCP & CPRM keys) and
therefore the IC103 cannot be replaced.
If this IC is faulty, replace the board entirely.
SECTION 3
VFD DRIVER
Vkk
CIRCUIT
EVER 3.3V
IC407
3.3V
REGULATOR IC
EVER +5V
!
EVER-10V
EVER+5V
SW+8V
SW+5V
SW+3.3V
EVER+11V
P-CONT
IC104
SDRAM
3-1
ND401 IC406
VFD IR RECEIVER
D401
LED
INDICATOR
KEY
FUNCTION
IC404
IF
MICON
IC408
RESET IC
Q402
MUTE DRIVER
CEC
IC304
IC102
IC103
VIDEO
BUFFER
FLASH
EEPROM
MEMORY
(DVP-NS78H: AEP,UK,RUS)
IC305
VIDEO
BUFFER
SERIAL BUS
MICROPROCESSOR
IC108
IC101
TMDS
RESET IC
DDC
RF AMP
CN102 IC406
HDMI out
Optical out
(DVP-NS72HP/NS77H: US/
NS77HP: MX/
NS78H: CND,SP,KR,TH/
NS78HP: E,BR)
DVP-NS72HP/NS77H/NS77HP/NS78H/NS78HP
(DVP-NS72HP/NS77H: US/NS77HP: MX/
NS78H: CND,SP,KR,TH/NS78HP: E,BR)
J301
AUDIO/VIDEO
OUTPUT
(DVP-NS78H: AEP,UK,RUS)
CN301 J302
AUDIO/VIDEO AUDIO/VIDEO
OUTPUT OUTPUT
IC401
AUDIO AMP
IC201
FOCUS
TRACKING COIL
DRIVE
SPINDLE/SLED
/LOADING
MOTOR DRIVE
D402
MUTE DRIVER
J301 J401
Coaxial out Coaxial out
(DVP-NS72HP/NS77H: US/ (DVP-NS78H: AEP,UK,RUS)
NS77HP: MX/
NS78H: CND,SP,KR,TH/
NS78HP: E,BR)
3-2
BASE UNIT
(DEVICE, OPTICAL
KHM-313CAA/C2RP)
INLIMIT
SENSOR
DVD/CD
PDIC
FOCUS
COIL
TRACKING
COIL
SPINDLE
M
MOTOR
M
SLED MOTOR
LOADING
M
MOTOR
CHUCK/TRAY
DETECT
The components identified by
mark or dotted line with mark
are critical for safety.
Replace only with part number
specified.