Kenwood DP-1100 B Service Manual page 128

• P - 1 1 0 0 B II
®
Microprocessor for error setting
operates.
Kicked to the T O C
position.
T O C is read.
The pickup is kicked to the beginn­
ing of the first program.
Pause at the beginning of the first program
Is indication normal?
Press the PLAY button.
Is sound heard? Is it free from abnormal sound?
Is there sound skipping?
Is the time indication advanced?
( Press the P A U S E button.
I
Is the sound muted?
Is the time indication stopped at a certain reading?
r
( Press the PLAY button.
3 2
4. TROUBLESHOOTING
(A, B, C , INH)
(IC12)
(CLV bit sync)
• The EFM waveform distorts,
resumes. Upon completion of the ope­
ration, fluorescent indication p D A T A - j
flashes.
(PUFB)
(P.U. feed motor circuit)
(Kick circuit)
• After backward kick is applied, the for­
ward kick is performed, (for brakes)
Q data, memory R/W, QDRD, QDRE,
Signal processing, main micropro­
cessor
(kick circuit)
The fluorescent display shows:
T r a c k N o .
T i m e
r- D A T A — ]
I
01 01
00 : 00
I
(Display circuit)
~)
(Signal processing, DAC)
(Tracking servo, dropout control)
(Display circuit, main microprocessor)
3
(Signal processing, D A C , IC19)
(Kick circuit)
)
The EFM waveform is distorted, then resumes normally.
then
The fluorescent display pDATA-j flashes (SVC setting is complete).
The pickup moves frontwards.
The signal appears at QDRD, Q data, memory R/W.
(Reading to T O C is complete.)
The pickup moves backwards. (The RFG waveform will be
as shown.)
(The pickup is set to the position of the beginning of the first
program.)
Pause at the beginning of the first program
i
i _ r u i _ r