7-1
7. TROUBLESHOOTING
No Power Detected
(stand by LED OFF)
F1SS01 is normal?
D1SS11, D1SF02
SHORT and OPEN
are normal?
Check feedback IC1SS2
Change short circuited or
opened parts
Change fuse
Check 2'st Voltage and D1SS12
Replace SCS11A
NO
NO
Is there voltage at
Collector of
SCS11A
NO
YES
YES
YES
Operation of
SCS11A is
normal?
NO
YES
Key Operation or
Remote Control Error
Is the measurement of
power with in normal value?
is the SMPS to Main connector
properly connected?
End repairs
Check power and front connector
Check the circuity around the clock
Check the circuity around
IC601 reset
Check the soldering around the
IC601
Change IC701
NO
NO
Key operatious such
as STOP,PLAY,OPEN
are normal?
Check the circuity around the swith.
check the condition of commmunication
with Main Micom
(IC601-11; SCLK, 12; TXD, 13; RXD,
52; RRQ, 66; SRQ)
NO
YES
YES
Check the circuity
around IC601 reset?
Check the soldering
around IC601 good?
NO
YES
XT602 8MHz
oscillation is normal?
NO
YES
YES
STOP,PLAY,OPEN
Key operatious are
normal?
YES
SLV-D940P AZ/D940P EA/D940P ME
Summary of Contents for SLV-D940P AZ
Page 67: ...3 Block Diagram 3 2 3 1 SLV D940P AZ D940P EA D940P ME ...
Page 68: ...MEMO 3 4E ...
Page 70: ...4 3 4 4 4 1 VCR Main COMPONENT SIDE ...
Page 71: ...4 6 4 5 CONDUCTOR SIDE ...
Page 72: ...4 7 4 8 4 2 DVD Main COMPONENT SIDE ...
Page 73: ...4 10 4 9 CONDUCTOR SIDE ...
Page 74: ...4 12E 4 11 4 4 FUNCTION 4 3 Dial ...
Page 76: ...5 4 5 3 5 1 S M P S ...
Page 77: ...5 6 5 5 5 2 Power Drive ...
Page 78: ...5 8 5 7 5 3 OSD VPS PDS ...
Page 79: ...5 10 5 9 5 4 A2 NICAM ...
Page 80: ...5 12 5 11 5 5 A V ...
Page 81: ...5 14 5 13 5 6 Hi Fi ...
Page 82: ...5 16 5 15 5 7 TM ...
Page 83: ...5 18 5 17 5 8 I O ...
Page 84: ...5 20 5 19 5 9 SYSCON ...
Page 85: ...5 22 5 21 5 10 Logic Function ...
Page 86: ...5 24 5 23 5 11 DVD A V ...
Page 87: ...5 26 5 25 5 12 DVD decoder Servo ...
Page 88: ...MEMO 5 28E ...
Page 116: ...7 18E MEMO ...