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VHR-630
VHR-650
BLOCK DIAGRAMS, CIRCUIT DIAGRAMS &
PRINTED WIRING BOARDS
TABLE OF CONTENTS
Page
1. OVERALL
WIRING,
MECHANISM
CONNECTION,
& BLOCK DIAGRAMS
OVERALL WIRING ....................... .............. ......................................................................................................1
MECHANISM
Connection
.............................................................................................................................3
VIDEO CIRCUIT (VHR-630) .....................................................................................! ........................................4
VIDEO CIRCUIT (VHR-650) ...................... ....................................................................................................... 7
SYSTEM CONTROL
& SERVO CIRCUIT ....................................................................................................... 10
AUDIO CIRCUIT ................................................................................................................................................ 13
,.,
2. CIRCUIT
DIAGRAMS
& PRINTED
WIRING
BOARDS
(P. W. B,)
CP-I P.W.B. .................................................................................................................................... ............ ......14
CP-1 BOARD (PW-A)
POWER SUPPLY ........................................................................................................l6
PW-1 BOARD
POWER SUPPLY .....................................................................................................................l8
PW-1 P.W.B. ........... . . ........................................................................................................................................l8
CP-I BOARD (AD-A) AUDIO ...........................................................................................................................I9
CP-1 BOARD (TN-A)
TUNER IF Connection
............................................................................................2O
CP-I BOARD (VD-A)
VIDEO ...........................................................................................................................22
VIDEO CIRCUIT WAVEFORMS
......................................................................................................................24
VP-1 BOARD
VIDEO PRE-AMP .......................................................................................................................25
VP-1 P.W.B. ........... ..........................................................................................................................................26
CP-I BOARD (SY-A)
SYSTEM CONTROL .....................................................................................................28
IC301 SYSTEM CONTROL,
TIMER, & TUNING CONTROL MPU PIN FUNCTIONS
TABLE ........................30
CP-1 BOARD (SV-A)
SERVO .........................................................................................................................3 I
SERVO CIRCUIT WAVEFORMS
(VHR-630) ...................................................................................................33
TM-1 BOARD
OPERATION
KEY & DISPLAY ................................................................................................34
TM-1 P.W. B . .....................................................................................................................................................34
A71OI DISPIAY
(FLD) GRID/ANODE
ASSIGNMENT
DRAWING & TABLE ..................................................36
SERVO CIRCUIT WAVEFORMS
(VHR-650) ...................................................................................................37
0
PP2N/A3,PP4N/AZ
65N
REFERENCE
No. SM531537
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