Kenwood DP-1100 B Service Manual
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Kenwood DP-1100 B Service Manual

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KENWOOD
NOTE: Please replace this service manual with the old DP-1100's manual (B51-1592-00). This manual
has all descriptions for DP-1100 and DP-110011.
TRIO-KENWOOD Corp.
certifies this
equipment conforms to DHHS Regula­
tions No. 21 C F R 1 0 4 0 . 1 0 , Chapter I,
Subchapter J .
DANGER: Laser radiation when open
and interlock defeated.
AVOID DIRECT EXPOSURE TO BEAM.
C O M P A C T D I S C P L A Y E R
DP-1100 B
DP-1100II
Photo is DP-1100B
•Refer to Parts List on page 177.
Photo is DP-110011
'Refer to Parts List on page 1 9 1 ,

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  • Page 1 DP-1100 B DP-1100II KENWOOD C O M P A C T D I S C P L A Y E R NOTE: Please replace this service manual with the old DP-1100's manual (B51-1592-00). This manual has all descriptions for DP-1100 and DP-110011.
  • Page 2 D P - 1 1 0 0 B II MEANING OF ABBREVIATIONS A F C : Disc m o t o r s p e e d c o n t r o l signal o u t p u t f r o m IC8 o n F O K G : Refer t o "...

  • Page 3: Block Diagram

    D P - 1 1 0 0 B II D P - 1 1 0 0 B II I. BLOCK DIAGRAM...
  • Page 4 D P - 1 1 0 0 B II II. FUNDAMENTALS 1 FUNDAMENTALS Q U A N T I Z A T I O N Fig. 1.3 i n d i c a t e s o n e e x a m p l e w h e r e a n a l o g signals r a n g i n g S A M P L I N G f r o m O V t o 1 0 V are c o n v e r t e d t o 1 1 - s t e p v o l t a g e values of A n a n a l o g v o l t a g e is c o n t i n u o u s in respect t o t i m e , a n d has a...
  • Page 5 D P - 1 1 0 0 B II II. FUNDAMENTALS S A M P L I N G T H E O R E M Signal Waveform Measurings at a fixed time ( b) S / H interval (sampling) Converts the measured values to figures (quantization)
  • Page 6 D P - 1 1 0 0 B II II. FUNDAMENTALS Q U A N T I Z I N G N O I S E S Transmitted signal waveform in passing Signal Waveform through a demodulation filter 3-digit figure 9-bit figure (decimal code) (Binary code)
  • Page 7 D P - 1 1 0 0 B II II. FUNDAMENTALS On t h e o t h e r h a n d , s u p p o s i n g t h a t an i n p u t signal is a T h e r e f o r e , the p o w e r ratio is: sinusoidal w a v e w h o s e a m p l i t u d e at the p e a k - t o - p e a k value is V , the signal p o w e r S is:...
  • Page 8 D P - 1 1 0 0 B II II. FUNDAMENTALS 8 bits - 1 4 bits 8 b i t s - 1 4 bits Order Order data bits channel bits data bits channel bits 0 0 0 0 0 0 0 0 0 1 0 0 1 0 0 0 1 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 0 1 0 0 0 1 0 0 1 0 0...
  • Page 9 D P - 1 1 0 0 B II II. FUNDAMENTALS 8 bits — 14 bits 8 bits — 14 bits Order Order Order Order data bits channel bits data bits channel bits 1 9 2 1 1 0 0 0 0 0 0 0 1 0 0 0 1 0 0 1 0 0 0 0 0 1 2 8 1 0 0 0 0 0 0 0...

  • Page 10: S T A R T Frame

    D P - 1 1 0 0 B II II. FUNDAMENTALS F R A M E S Y N C H R O N I Z A T I O N A N D F R A M E S T R U C T U R E R e p r o d u c t i o n signals c a n n o t be r e c o v e r e d RF signals d o n o t Channel bits Margin bits...
  • Page 11 D P - 1 1 0 0 B II II. FUNDAMENTALS C O M P A C T D I S C ( C D ) m o i s t u r e a b s o r p t i o n c a u s i n g b e n d is a big d e f e c t . (Refer T h e r e are m a n y kinds of D A D s y s t e m s : C D , M D a n d t o p r e c a u t i o n s o n h a n d l i n g t h e disc.) A H D .
  • Page 12 D P - 1 1 0 0 B II II. FUNDAMENTALS Program Lead out Lead in "(T.O.C) Fig. 1 . 1 2 Lead In: T O C (table of c o n t e n t s ) — A b s o l u t e t i m e of t h e h e a d i n g of m u s i c is i n c l u d e d .
  • Page 13 D P - 1 1 0 0 B II II. FUNDAMENTALS 1 2 . D o u b l e Refraction 1 1 . T h e rating of d o u b l e refraction is represented by a light path difference ( m m ) .
  • Page 14 0 P - 1 1 0 0 B II II. FUNDAMENTALS Glass Disc Glass Disc Photoresist Photoresist Coating Glass Disc Laser R e c o r d i n g D e v e l o p m e n t Master Disc •...

  • Page 15: Encoding S Y S T E M

    D P - 1 1 0 0 B II II. FUNDAMENTALS Control & Sync. Display Generation Encoding Sample Modulator A D C Filter & Hold Serial Data Output Error Audio input Correction System Sample A D C Filter & Hold X-tal Timing ENCODING S Y S T E M...
  • Page 16 D P - 1 1 0 0 B II II. FUNDAMENTALS 2 CODE ERROR 2 - 3 I N T E R L E A V E Even if r e a d i n g every page of a b o o k slantwise f r o m its u p p e r C A U S E S O F C O D E E R R O R left side t o l o w e r right side, y o u c a n fully recognize t h e c o n ­...
  • Page 17 • P - 1 1 0 0 B II II. FUNDAMENTALS 2 - 4 S I N G L E E R A S U R E C O R R E C T I N G M E T H O D Bill (a) as s h o w n in Fig.
  • Page 18 II. FUNDAMENTALS 2 - 5 S I N G L E E R R O R C O R R E C T I O N , D O U B L E E R A S U R E S In case of (3) in 2 - 4 , c o r r e c t i o n is infeasible because the Bill (a) location of error is u n k n o w n .
  • Page 19 D P - 1 1 0 0 B II II. FUNDAMENTALS T h e principle of d o u b l e erasure c o r r e c t i o n is described E B = 1 0 0 b e l o w .
  • Page 20 DP-1100B II II. FUNDAMENTALS 2 - 6 C R O S S - I N T E R L E A V E delivered directly, b u t w o r d s f e d into N o . 2 t o N o . 4 lines Fig.
  • Page 21 P-1100B II II. FUNDAMENTALS 3 BRIEF EXPLANATIONS ON CD PLAYER (See the BLOCK DIAGRAM) 3 - 2 S I G N A L P R O C E S S I N G C I R C U I T P I C K U P F O R C D A P P L I C A T I O N A signal d e t e c t e d at a p i c k u p is delivered t o a signal process­...
  • Page 22 D P - 1 1 0 0 B II II. FUNDAMENTALS 3 - 3 - 3 C L V S e r v o Circuit The CLV servo c i r c u i t is t h e c i r c u i t t o s e r v o - c o n t r o l r e v o l u t i o n s C o n s t a n t linear v e l o c i t y (CLV) m e a n s t o keep a line s p e e d at a of the disc m o t o r t o keep c i r c u m f e r e n t i a l s p e e d of t h e disc c o n s t a n t speed of a p p r o x .
  • Page 23 D P - 1 1 0 0 B II II. FUNDAMENTALS 4 SEMICONDUCTOR LASER (LASER DIODE) 4 - 2 L A S E R D I O D E A laser d i o d e , as m e n t i o n e d 4 - 1 , is t h e s a m e as an LED in P R I N C I P L E O F L E D L U M I N E S C E N C E t e r m s of r e c o m b i n a t i o n l u m i n e s c e n c e of carriers, b u t different in t h a t t h e light e m i t t e d is a c o h e r e n t laser light, t h e phase of...
  • Page 24 •P-1100B II II. FUNDAMENTALS 5 PICK-UP (PU) AND PU SERVO The light reflected f r o m a disc passes again t h r o u g h t h e o b ­ jective lens a n d f o l l o w s t h e s a m e path as the f o r w a r d path t o the polarizing f i l m .
  • Page 25 D P - 1 1 0 0 B II II. FUNDAMENTALS 5 - 2 F O C U S E R R O R A N D T R A C K I N G E R R O R C o l l i m a t o r Lens Diffused light b e a m s are c h a n g e d t o parallel light b e a m s .
  • Page 26 Q P - 1 1 0 0 B II II. FUNDAMENTALS In Fig. 5 . 3 , t h e a n g l e of t h e critical p r i s m has been a d j u s t e d D i s c too c l o s e so t h a t t h e i n c i d e n t light angle is j u s t e q u a l t o t h e critical angle Objective lens...
  • Page 27 DP-1100B II II. FUNDAMENTALS 5 - 2 - 2 T r a c k i n g Error Detection T r a c k i n g error is a d e v i a t i o n of the r e a d i n g light s p o t f r o m the In this s y s t e m , e a c h...
  • Page 28 D P - 1 1 0 0 B II II. FUNDAMENTALS 6. GENERAL DESCRIPTION ON MICROPROCESSOR A d d r e s s D a t a (Q Signal) R - C h a n n e l ..& W - C h a n n e l .
  • Page 29 D P - 1 1 0 0 B II II. FUNDAMENTALS A d d r e s s data f o r m a t (outside lead-in area) are as f o l l o w s : S O , S 1 : 2 bits address signal sync p a t t e r n .

  • Page 30: Circuit Description

    D P - 1 1 0 0 B II 1. CIRCUIT DESCRIPTION S u b s e q u e n t t o " 1 - 2 H e a d a m p " , t h e servo PCB a n d t h e w h e n play m o d e is e n t e r e d f r o m s t o p m o d e .

  • Page 31: Servo Circuits

    DP-11D0BI I 1. CIRCUIT DESCRIPTION 1-2 Servo circuits 1 - 2 - 3 D S V circuit ( I C 8 ( 1 / 2 ) a n d I C 1 5 D L S 1 a n d 2) Pits are m a d e o n a disc in s u c h a w a y t h a t the s u m of "...
  • Page 32 D P - 1 1 0 0 B II 1. CIRCUIT DESCRIPTION Scratch, Dust RFES • D C O N Disc D O C K F i g . 1 - 2 A...
  • Page 33 D P - 1 1 0 0 B II 1. CIRCUIT DESCRIPTION 1 - 2 - 1 0 T E noise limiter 1 - 2 - 7 T r a y motor driver 3-state o u t p u t situation in pin 9 of IC15 is used for driving t h e This noise limiter consists of I C 1 4 ( 2 / 2 ) a n d Q 2 7 t o Q 3 0 .
  • Page 34 D P - 1 1 0 0 B II 1. CIRCUIT DESCRIPTION 1-3 PROCESS CIRCUIT Only t h e data w h i c h c o u l d n o t be c o r r e c t e d even in t h e C2 c o r r e c t i o n s e c t i o n is s u b j e c t t o m e a n - v a l u e i n t e r p o l a t i o n a n d 1-3-1 E F M signal demodulation...
  • Page 35 D P - 1 1 G 0 B II 1. CIRCUIT DESCRIPTION D / A c o n v e r t e r this LPF o u t p u t s a m u s i c signal w i t h a peak a m p l i t u d e of 1/2 T h e serial m u s i c d a t a , w h i c h is o u t p u t f r o m IC6 o n t h e p r o ­...
  • Page 36 D P - 1 1 0 0 B II D P - 1 I 0 0 B II 1. CIRCUIT DESCRIPTION 1-5 MAIN CIRCUIT OPERATION 1-5-1 R E S E T O P E R A T I O N Fig.
  • Page 37 D P - 1 1 0 0 B II D P - 1 1 0 0 B II 1. CIRCUIT DESCRIPTION 1 - 5 - 2 T R A Y O P E R A T I O N Fig. 1 - 5 - 3 1 .
  • Page 38 •ilifillililiflllMflllililiHIl 1. CIRCUIT DESCRIPTION 1 - 5 - 3 L A S E R O N O P E R A T I O N Fig. 1 - 5 - 3 - 2 Timing diagram for L A S E R O N T I M E . Fig.
  • Page 39 D P - 1 1 0 0 B I] D P - 1 1 0 0 B II 1. CIRCUIT DESCRIPTION 1 - 5 - 4 F O C U S S E A R C H O P E R A T I O N Fig.
  • Page 40 D P - 1 1 0 0 B II I D P - 1 1 0 0 B II 1. CIRCUIT DESCRIPTION 1 - 5 - 5 D I S C D E T E C T I O N O P E R A T I O N & R E V E R S E - R E V O L U T I O N P R E V E N T I O N C I R C U I T F O R D I S C M O T O R Fig.
  • Page 41 D P - 1 1 0 0 B II D P - 1 1 0 0 B II 1. CIRCUIT DESCRIPTION 1-5-6 F G & D I S C M O T O R D R I V E A N D S T O P O P E R A T I O N S Fig.
  • Page 42 D P - 1 1 0 0 B II i D P H O O B II 1. CIRCUIT DESCRIPTION 1-5-7 F O C U S S E R V O O P E R A T I O N F i g .
  • Page 43 DP-1100B II DP-1100B/H 1. CIRCUIT DESCRIPTION 1-5-8 T R A C K I N G S E R V O O P E R A T I O N 1 . T h e o u t p u t s A a n d A of 4-division p h o t o d e t e c t o r 4 .
  • Page 44 • P - 1 1 0 0 B II I D P - 1 1 0 0 B II 1. CIRCUIT DESCRIPTION 1 - 5 - 9 . T R A C K I N G E R R O R G E N E R A T I O N A N D K I C K O P E R A T I O N TEG1 T E G 2 "...
  • Page 45 D P - 1 1 0 0 B II D P - I 1 0 0 B II 1. CIRCUIT DESCRIPTION 1 - 5 - 1 0 . S E A R C H A N D L O C K - I N C I R C U I T O P E R A T I O N D U R I N G K I C K M O D E Fig.
  • Page 46 DP-I I O DB/ n D P - 1 1 0 0 B II 1. CIRCUIT DESCRIPTION 1 - 5 - 1 1 . P U D R I V E O P E R A T I O N Fig.
  • Page 47 D P - 1 1 0 0 B II D P - 1 1 0 0 B II 1. CIRCUIT DESCRIPTION 1 - 5 - 1 2 . F O C U S S E R V O C O N T R O L S I G N A L O P E R A I T O N FCO- 1.
  • Page 48 D P - 1 1 0 G B II D P - 1 1 0 0 B II 1 . CIRCUIT DESCRIPTION 1 - 5 - 1 3 . C O N T R O L S I G N A L O P E R A T I O N 1 .
  • Page 49 D P - 1 1 0 0 B / II D P - 1 1 0 0 B II 1. CIRCUIT DESCRIPTION 1 - 5 - 1 4 . S E R V O C O N T R O L C I R C U I T O P E R A I T O N Fig.
  • Page 50 DP-1100B II DP-1100B II 1. CIRCUIT DESCRIPTION 1 - 5 - 1 5 . D R O P O U T P O S I T I O N D E T E C T I O N O P E R A T I O N A N D P U F F , K I C F O P E R A T I O N Detection of Dropout Position F I G .
  • Page 51 D P - 1 1 0 D B II D P - 1 1 D 0 B II 1. CIRCUIT DESCRIPTION P U F F , K I C F 1 . This is a c i r c u i t t o c o n t r o l t h e c a r r y m o t o r for the p i c k u p . 4 .
  • Page 52 D P - 1 1 0 0 B II| D P - 1 1 0 0 B II 1. CIRCUIT DESCRIPTION 1 - 5 - 1 6 . K E Y D A T A A N D T I M I N G P U L S E O P E R A T I O N Fig.
  • Page 53 D P - 1 1 0 0 B II D H 1 0 0 B II 1. CIRCUIT DESCRIPTION 1 - 5 - 1 7 . E F M I S I G N A L C I R C U I T O P E R A T I O N 1 .
  • Page 54 DP-1100B II DP-1100B II 1. CIRCUIT DESCRIPTION 1 - 5 - 1 8 . P L L C I R C U I T O P E R A T I O N Fig. 1 - 5 - 1 8 - 1 A n o u t p u t signal EFM1 f r o m the EFM data s a m p l i n g c i r c u i t is f e d t o pin 17 of IC15 ( T C 1 5 G or T 7 0 0 1 ) .
  • Page 55 D P - 1 1 D 0 B / I I 0 P - 1 1 0 0 B II 1. CIRCUIT DESCRIPTION 1 - 5 - 1 9 . M U T I N G C I R C U I T O P E R A T I O N F i g .
  • Page 56 D P - 1 1 Q 0 B II 0 P - 1 1 0 0 B II 1. CIRCUIT DESCRIPTION 1 - 5 - 2 0 . R E M O T E C I R C U I T O P E R A T I O N ( T R A N S M I T T E R H A S A S I M I L A R O P E R A T I O N A S T V O R V I D E O A N D W I L L N O T B E E X P L A I N E D ) Fig.
  • Page 57 D P - 1 1 D 0 B II D P - 1 1 D 0 B / 1 1 1. CIRCUIT DESCRIPTION 1 - 5 - 2 1 . E M P H A S I S C I R C U I T O P E R A T I O N W h e n playing a disc, t h e level in the h i g h f r e q u e n c y range c a n be l o w e r e d t o the s a m e degree as w h e n the disc has been r e c o r d e d w i t h its high f r e q u e n c y level e n h a n c e d in...
  • Page 58 DP-IIOOB/H 2. IC OPERATION OF EACH CIRCUIT AND PIN DESCRIPTION 2-1 Head amp (J25-4404-08) 2-1-1 Q 1 0 3 ( T A 7 7 3 1 P ) h e a d a m p Q 1 0 3 ( T A 7 7 3 1 P ) is t h e head a m p a n d o p e r a t i o n IC f o r t h e laser b e a m receiver d e v i c e , d e v e l o p e d f o r CD system D A D player.
  • Page 59 • P - 1 1 0 G B II 2. IC OPERATION OF EACH CIRCUIT AND PIN DESCRIPTION Pin functions Pin No. Symbol Description Remarks -L-r\ R F I Pin which outputs the sum signal (A + B) of pin IN A and IN B input signals out of 4-division H / "...
  • Page 60 DP-I I D OB/ n 2. IC OPERATION OF EACH CIRCUIT AND PIN DESCRIPTION Remarks Pin No. Symbol Description Pin which outputs the sum signal (C + D) of pin IN C and IN D input signals out of 4-division R F 2 photodetector outputs.

  • Page 61: Control Inputs

    •P-1100B 11 2. IC OPERATION OF EACH CIRCUIT AND PIN DESCRIPTION 2 - 1 - 2 Q 1 0 2 ( T C 4 0 5 1 B P ) S V C s w i t c h T C 4 0 5 1 B P , 8 - c h a n n e l c o n f i g u r a t i o n , is a...
  • Page 62 D P - 1 1 0 0 B II 2. IC OPERATION OF EACH CIRCUIT AND PIN DESCRIPTION 2-2 Servo board (X29-1520-00) 2-2-1 I C 9 ( T C 5 0 5 0 P ) dropout m e m o r y , 5 0 - s t a g e / 1 1 4 - s t a g e selection t y p e shift register Pin c o n n e c t i o n diagram Block diagram Truth table...
  • Page 63 D P - 1 1 0 0 B II 2. IC OPERATION OF EACH CIRCUIT AND PIN DESCRIPTION 2 - 2 - 2 I C 1 5 ( T C 1 5 G 0 0 8 A P ) s e m i - c u s t o m I C Pin c o n n e c t i o n Fig.
  • Page 64 D P - 1 1 0 0 B II 2. IC OPERATION OF EACH CIRCUIT AND PIN DESCRIPTION Block diagram Fig. 2 - 2 - 2 B Internal block diagram...
  • Page 65 D P - 1 1 0 0 B II 2. IC OPERATION OF EACH CIRCUIT AND PIN DESCRIPTION Pin f u n c t i o n s Pin No. Symbol Pin name IN/OUT Description Remarks Tracking error pulse con­ Outputs a "...
  • Page 66 D P - 1 1 0 0 B II 2. IC OPERATION OF EACH CIRCUIT AND PIN DESCRIPTION Pin No. Symbol Pin name IN/OUT Description Remarks Laser diode control out­ Laser diode ON = " H " output, OFF = " L " output Output which indicates the dropout position of the RF signal.
  • Page 67 • P - 1 1 G 0 B II 2. IC OPERATION OF EACH CIRCUIT AND PIN DESCRIPTION Pin No. Symbol Pin name IN/OUT Description Remarks RFES control signal out­ Output which controls the detection level of signal RFES. " L " only dur­ ing kick operation.
  • Page 68 D P - 1 1 0 0 B II 2. IC OPERATION OF EACH CIRCUIT AND PIN DESCRIPTION Pin No. Symbol Pin name IN/OUT Remarks Description Pullup resistor Input for FG signal with 20 pulse/disc rotation. FG signal input incorporated Should have a duty ratio of approx.
  • Page 69 D P - 1 1 0 0 B II 2. IC OPERATION OF EACH CIRCUIT AND PIN DESCRIPTION E a c h d a t a for m o d e 0 to 3 is p a s s e d through the latch circuit, thereby different control signals are generated in the decoder s e c t i o n .
  • Page 70 D P - 1 1 0 0 B II 2. IC OPERATION OF EACH CIRCUIT AND PIN DESCRIPTION S e a r c h c o n t r o l used in m u s i c s c a n , etc. is p e r f o r m e d by t h e kick c o n t r o l c i r c u i t .
  • Page 71 D H 1 0 0 B II 2. IC OPERATION OF EACH CIRCUIT AND PIN DESCRIPTION 2-3 Process board (X32-1010-00) 2-3-1 I C 1 5 ( T M P 4 7 4 0 N - 5 9 0 9 , 5 9 1 4 ) Main microprocessor Fig.
  • Page 72 DP-I I D OB/ n 2. IC OPERATION OF EACH CIRCUIT AND PIN DESCRIPTION Pin description of I C 1 5 ( T M P 4 7 4 0 N ) Signal IN/OUT Level Function/operation Pin No. Port name name Outputs various mode data and kick data outputs to IC15 (TC15G008AP) for interface with the servo system.
  • Page 73 P - 1 1 0 0 B II 2. IC OPERATION OF EACH CIRCUIT AND PIN DESCRIPTION Signal IN/OUT Level Function/operation Pin No. Port name name Read/write control signal to the external RAM IC14 (TC5514). ( " H " level in read mode and "...
  • Page 74 DP-I I O OB/ n 2. IC OPERATION OF EACH CIRCUIT AND PIN DESCRIPTION Signal IN/OUT Level Function/operation Pin No. Port name name Power Power supply ( + 5 V) supply Power Power supply ( + 5 V) supply T a b l e 2 - 3 - 1 A...
  • Page 75 DP- 1 100B II 2. IC OPERATION OF EACH CIRCUIT AND PIN DESCRIPTION 2 - 3 - 2 I C 9 ( T D 6 3 1 5 P ) P L L I C IC9 ( T D 6 3 1 5 P ) , t h e PLL IC d e v e l o p e d f o r CD system D A D player, consists of a digital phase c o m p a r a t o r , a c h a r g e p u m p Pin c o n n e c t i o n diagram c i r c u i t , an active LPF a n d a data separation c i r c u i t .
  • Page 76 D P - 1 1 0 0 B / D 2. IC OPERATION OF EACH CIRCUIT AND PIN DESCRIPTION Pin f u n c t i o n s Remarks Pin No. Symbol Description Positive input of built-in OP amp. INA + Forms the guard ring of INA—...
  • Page 77 D P - 1 1 G 0 B II 2. IC OPERATION OF EACH CIRCUIT AND PIN DESCRIPTION Pin No. Symbol Description Remarks Signal EFMI output. This output, synchronized with the rising edge of signal PLCK, is input DOUT C-MOS level to pin EFMI of C-MOS processor TC9178F.
  • Page 78 D P - 1 1 0 0 B II 2. IC OPERATION OF EACH CIRCUIT AND PIN DESCRIPTION 2 - 3 - 3 I C 8 ( T C 9 1 7 8 F ) E . F . M decoder Pin Description Pin c o n n e c t i o n Fig.
  • Page 79 D P - 1 1 0 0 B II 2. IC OPERATION OF EACH CIRCUIT AND PIN DESCRIPTION T C 9 1 7 8 F Block diagram Fig. 2 - 3 - 3 B...
  • Page 80 D P - 1 1 0 0 B II 2. IC OPERATION OF EACH CIRCUIT AND PIN DESCRIPTION Pin f u n c t i o n s Pin No. Symbol Waveform Description Remarks Not connected PCSA PCSA PCSA PCSA PCSA PCSA PCSA...
  • Page 81 D P - 1 1 0 0 B II 2. IC OPERATION OF EACH CIRCUIT AND PIN DESCRIPTION Pin No. Symbol Waveform Description Remarks Output for CH 2/CH 4 selection judgement represented by control bit 2/4S of sub-code signal Q. "...
  • Page 82 D P - 1 1 0 0 B II 2. IC OPERATION OF EACH CIRCUIT AND PIN DESCRIPTION Pin No. Symbol Waveform Description Remarks APC signal output for CLV servo control. The output is a PWM (Pulse Width Modulation) wave with resolution APCO = 8 bits, carrier frequency = 8.27 kHz and linear output range = 8 XJ—...
  • Page 83 D P - 1 1 0 0 B II 2. IC OPERATION OF EACH CIRCUIT AND PIN DESCRIPTION Pin No. Symbol Description Remarks Waveform Input sub-code sync pattern detection mode selection, QDSS " H " demodulating sub-code signal Q. Input used in reading the sub-code signal Q data inside internal QDRD memory in units of 4 bits via outputs QDA-a to QDA-d.
  • Page 84 D P - 1 1 0 0 B II 2. IC OPERATION OF EACH CIRCUIT AND PIN DESCRIPTION Remarks Description Pin No. Symbol Waveform Window selection of gate signal which, when the frame sync pattern of EFM signal is detected, determines whether or not this pattern is given as the sync signal for the internal system.
  • Page 85 DP-1100B II 2. IC OPERATION OF EACH CIRCUIT AND PIN DESCRIPTION Pin No. Symbol Waveform Description Remarks The frequency data obtained from Tmax detection of EFM signal which is input from EFM2 is output in one of 3 states as the result of comparison between signal PLCK and Tmax.
  • Page 86 •P-1100B II 2. IC OPERATION OF EACH CIRCUIT AND PIN DESCRIPTION Pin No. Symbol Waveform Description Remarks When each system is in synchronization by the frame sync pattern, and when that input pattern is completely synchronized with the FSLO frame sync pattern in internal frame counter (the frame synchroniza­ Not connected tion necessarily has 588 pulses PLCK), "...
  • Page 87 D P - 1 1 0 0 B II 2. IC OPERATION OF EACH CIRCUIT AND PIN DESCRIPTION 2 - 3 - 4 I C 6 ( T C 9 1 7 9 F ) Error correction Pin c o n n e c t i o n Fig.
  • Page 88 D P - 1 1 0 0 B II 2. IC OPERATION OF EACH CIRCUIT AND PIN DESCRIPTION Block diagram Fig. 2 - 3 - 4 B T C 9 1 7 9 F Block diagram...
  • Page 89 D P - 1 1 0 0 B II 2. IC OPERATION OF EACH CIRCUIT AND PIN DESCRIPTION Pin functions Pin No. Symbol Waveform Description Remarks 27, 61 Voltage supply pin 28, 62, GND pin Connected PBFS Frame sync input. The symbol data period signal of each frame sent PBFS (pin 56) of TC9178F —...
  • Page 90 D P - 1 1 0 0 B II 2. IC OPERATION OF EACH CIRCUIT AND PIN DESCRIPTION Pin No. Symbol Waveform Description Remarks Connect system Process selection input of C2 correction section. Selects the process ALGC GND. algorithm for the frame in which detection of error symbol is not (Normal position) possible in C2 correction section.
  • Page 91 D P - 1 1 0 0 B II 2. IC OPERATION OF EACH CIRCUIT AND PIN DESCRIPTION Pin No. Symbol Waveform Description Remarks 4 1 , 4 2 Not connected. P/S SE = " L " P/S S E = " H " Outputs the fourth bit from LSB Outputs a "...
  • Page 92 D P - 1 1 0 0 B II 2. IC OPERATION OF EACH CIRCUIT AND PIN DESCRIPTION Pin No. Symbol Waveform Description Remarks MSB/LSB clock pulse output. Outputs the clock signal (176.4 kHz) MLCK obtained from 8-division of signal BCK, which is used as a set clock pulse when 8-bit parallel data is output.
  • Page 93 D P - 1 1 0 0 B II 2. IC OPERATION OF EACH CIRCUIT AND PIN DESCRIPTION Pin No. Remarks Symbol Waveform Description / 1 3 8 ^ S \ DSLP Data status signal output. (Error information signal output) 50 nS —-y DAST...
  • Page 94 DP-1100B II 2. IC OPERATION OF EACH CIRCUIT AND PIN DESCRIPTION 2 - 3 - 5 I C 1 2 ( M B 8 8 2 0 1 - 1 1 5 K ) S V C mircoprocessor Pin c o n n e c t i o n diagram Fig.
  • Page 95 D P - 1 1 0 0 B II 2. IC OPERATION OF EACH CIRCUIT AND PIN DESCRIPTION Pin f u n c t i o n s Signal Pin No. Port name Initial value Description name SVC (A) Output for focus offset amount control data to Q102 (SVC circuit) bit 0 SVC (B) Output for focus offset amount control data to Q102 (SVC circuit)
  • Page 96 0 P - 1 1 0 0 B II 2. IC OPERATION OF EACH CIRCUIT AND PIN DESCRIPTION Operation of I C 1 2 ( M B 8 8 2 0 1 ) Focus offset a m o u n t is c o n t r o l l e d by c o n t r o l of bilateral s w i t c h IC12 ( M B 8 8 2 0 1 ) is t h e CPU t o c o n t r o l f o c u s offset a m o u n t Q 1 0 2 ( T C 4 0 5 1 B P ) t h r o u g h SVC ( A ) = S V C (C) a n d against t e m p e r a t u r e c h a n g e , etc.
  • Page 97 D P - 1 1 0 0 B II 2. IC OPERATION OF EACH CIRCUIT AND PIN DESCRIPTION 2 - 3 - 6 I C 1 4 ( T C 5 5 1 4 P ) T . O . C . M e m o r y Pin connection diagram Fig.
  • Page 98 D P - 1 1 0 0 B II 2. IC OPERATION OF EACH CIRCUIT AND PIN DESCRIPTION Pin f u n c t i o n s of external R A M I C 1 4 ( T C 5 5 1 4 P ) Port pin Signal Initial...
  • Page 99 • P - 1 1 G 0 B II 2. IC OPERATION OF EACH CIRCUIT AND PIN DESCRIPTION External R A M I C 1 4 ( T C 5 5 1 4 P ) m a p RAM capacity, 1 0 2 3 words Capacity used, 626 words ] ^ 4 b i t Column address...
  • Page 100 D P - 1 1 0 0 B II 2. IC OPERATION OF EACH CIRCUIT AND PIN DESCRIPTION T h e operation timing w h e n play start time data of 5 3 min 4 1 s e c is written on the point data of tune 2 0 w h i c h is read out in reading the read-in d a t a .
  • Page 101 D P - 1 1 0 0 B II 2. IC OPERATION OF EACH CIRCUIT AND PIN DESCRIPTION Operation timing w h e n c h a n n e l - 1 6 total play time data of 9 5 min 3 4 s e c is w r i t t e n Fig.
  • Page 102 D P - 1 1 0 0 I I 2. IC OPERATION OF EACH CIRCUIT AND PIN DESCRIPTION 2-3-7 IC26 (^PD4053BC) Pin c o n n e c t i o n F i g . 2 - 3 - 7 A Block diagram Fig.
  • Page 103 D P - 1 1 0 0 I I 2. IC OPERATION OF EACH CIRCUIT AND PIN DESCRIPTION T u r n table Control inputs " O N ' ' Channel " O N ' ' Channel INHIBIT An emphasized — (Q6 is turned off) - Yi, X , Yi, Xj...
  • Page 104 D P - 1 1 0 0 B II 2. IC OPERATION OF EACH CIRCUIT AND PIN DESCRIPTION 2-4 Display PC board (X25-2020-00) 2-4-1 IC1 ( T M P 4 7 C 4 1 N ) display microprocessor Pin c o n n e c t i o n diagram Fig.
  • Page 105 D P - 1 1 0 0 B II 2. IC OPERATION OF EACH CIRCUIT AND PIN DESCRIPTION Pin functions Signal Port name Initial value Description name (Anode) Anode A (Anode) Anode B (Anode) Anode C (Anode) Anode D FL display tube data (Anode) Anode I FL display tube data (Anode) Anode J...
  • Page 106 D P - 1 1 0 0 B II 2. IC OPERATION OF EACH CIRCUIT AND PIN DESCRIPTION Signal Port name Initial value Description name FL display tube data (Anode) Anode G FL display tube data (Anode) Anode H Key matrix input data BitO Key matrix input data Bit 1...
  • Page 107 D P - 1 1 0 0 B II 2. IC OPERATION OF EACH CIRCUIT AND PIN DESCRIPTION Signal Port name Initial value Description name Power v „ Power supply (0 V) supply TEST Not used (Connected to \Z OSC connection pin OSC connection pin Xot/r RESET...
  • Page 108 2. IC OPERATION OF EACH CIRCUIT AND PIN DESCRIPTION Fig. 2 - 4 - 1 B Display matrix in F L tube display s e c t i o n o . 9 6 8 m s e c Fig. 2 - 4 - 1 B Timing diagram for e a c h s e g m e n t and digit...
  • Page 109 D P - 1 1 0 0 B II 2. IC OPERATION OF EACH CIRCUIT AND PIN DESCRIPTION Lamp name Main function 8-digit number display division. Normally, displays the address data during play. The respective pairs of 2 digits from the left show TNO, X, MIN, and SEC in order.
  • Page 110 D P - 1 1 0 0 B II 2. IC OPERATION OF EACH CIRCUIT AND PIN DESCRIPTION Digit FD 4 (R62) FD 5 (R63) FD 6 (R70) Signal Port name Pin No. name KS 0 KS 1 KS 2 K 0 3 KS 3 OPEN...
  • Page 111 DHI O OB/ n 2. IC OPERATION OF EACH CIRCUIT AND PIN DESCRIPTION R e m o t e control reception data processing In this s y s t e m , t h e falling e d g e of t h e r e c e p t i o n signal is T h e r e m o t e c o n t r o l t r a n s m i t t e r in this s y s t e m , in w h i c h t h e d e t e c t e d by i n t e r r u p t f u n c t i o n (INT1) of IC1 ( T M P 4 7 C 4 1 N ) key matrix s h o w n in Fig.

  • Page 112: Pin Description

    D P - 1 1 0 0 B II 2. IC OPERATION OF EACH CIRCUIT AND PIN DESCRIPTION Fig. 2 - 4 - 1 G...
  • Page 113 3. OPERATION OF MAIN MICROPROCESSOR 3-1 OPERATION OF CPU 1 (IC15) CPU 1 ( m a i n m i c r o p r o c e s s o r ) has m a n y roles. The f o l l o w i n g describes t h e m a i n o n e s .
  • Page 114 DP-1100B II 3. OPERATION OF MAIN MICROPROCESSOR 3 - 1 - 2 D i s c p r e s e n c e / a b s e n c e detection 3 - 1 - 3 D i s c surf a c e / r e a r judgement W i t h a disc o n t h e tray, w h e n t h e laser b e a m is just f o c u s e d , Fig.
  • Page 115 DP-1100B II 3. OPERATION OF MAIN MICROPROCESSOR 3 - 1 - 4 Lead-in data reading s e c t i o n W h e n r e a d i n g c a n n o t be c o m p l e t e d even after a p p r o x . 2 0 Before lead-in data reading o p e r a t i o n , t h e p i c k u p is l o c a t e d at sec, r e a d i n g is s t o p p e d a n d o p e r a t i o n shifts t o search o p e r a ­...
  • Page 116 DP- 1 100B II 3. OPERATION OF MAIN MICROPROCESSOR 3-1-5 A d d r e s s d a t a (data Q , time data) reading In c o n f o r m i t y w i t h t h e s t a n d a r d f o r CD s y s t e m , t i m e data is r e c o r d e d as c h a n n e l Q data by use of 1 bit o u t of t h e 8 bits w h i c h c o m e after t h e sync signal of f r a m e data.
  • Page 117 DP-1100B II I. OPERATION OF MAIN MICROPROCESSOR Fig. 3 - 1 D Q - d a t a reading f l o w chart.
  • Page 118 • P - 1 1 G 0 B II 3. OPERATION OF MAIN MICROPROCESSOR 3 - 1 - 6 F F / R E V m o d e W h e n t h e FF key is p r e s s e d , fast f o r w a r d p i c k u p carry o p e r a ­ T h a t is, the disc is separated into divisions of 10 m i n u t e s by the absolute t i m e , a n d the data of the average n u m b e r of t i o n is m a d e , w h i l e w h e n the...
  • Page 119 D P - 1 1 0 0 B II 3. OPERATION OF MAIN MICROPROCESSOR 3 - 1 - 7 S e a r c h operation D P - 1 1 0 0 / B has a c o n v e r s i o n table in w h i c h the n u m b e r of T h e s e a r c h s y s t e m w h o s e a i m is t o assure a c c u r a t e m u s i c scan in a s h o r t required t i m e is a c o m b i n a t i o n of t w o s y s t e m s : tracks against t h e absolute t i m e in units of 10 m i n u t e s a n d...
  • Page 120 D P - H O O D II 3. OPERATION OF MAIN MICROPROCESSOR [ 1 ] T h e play start a b s o l u t e t i m e A 1 ( m i n , sec) of the sear­ [ 7 .
  • Page 121 D P - 1 1 0 Q B II OPERATION OF MAIN MICROPROCESSOR Fig. 3 - 1 E Operation f l o w chart of d y n a m i c s e a r c h s y s t e m...
  • Page 122 D P - 1 1 0 0 B II 3. OPERATION OF MAIN MICROPROCESSOR Next, the kick s e a r c h s y s t e m is d e s c r i b e d . W h e n A T is m o r e t h a n 5 1 2 t r a c k s , c o n s i d e r i n g the effect of In this s y s t e m , search o p e r a t i o n is p e r f o r m e d based o n only disc e c c e n t r i c i t y a n d brake o p e r a t i o n , A T + 2 ( 1 2 8 t r a c k s are...

  • Page 123: Time Difference

    •P-1100B II 3. OPERATION OF MAIN MICROPROCESSOR Fig. 3 - 1 G Fig. 3-11 Operation model of kick s e a r c h s y s t e m Fig. 3 - 1 H s h o w s t h e o p e r a t i o n f l o w c h a r t of the kick search [ 2 ] W h e n t h e s e a r c h i n g position is outside t h e p r e s e n t posi­...
  • Page 124 D P - 1 1 0 0 B II 3. OPERATION OF MAIN MICROPROCESSOR In a d d i t i o n , c o n c e r n i n g t h e set n u m b e r of t r a c k s , as t h e stage [ 6 ] T h e stage N o .

  • Page 125: P A U S E Operation

    D P - 1 1 0 0 B II 3. OPERATION OF MAIN MICROPROCESSOR 3-1-8 P a u s e operation T h e pause o p e r a t i o n is p e r f o r m e d by a p p l i c a t i o n of the search Even w h e n s e a r c h is c o n v e r t e d , kick in t h e d i r e c t i o n of s y s t e m d e s c r i b e d in s e c t i o n 3 - 1 - 7 "...
  • Page 126 D P - 1 1 0 0 B II 3. OPERATION OF MAIN MICROPROCESSOR 3-2 DATA TRANSMISSION RECEPTION BETWEEN IC15 (TMP4740N : MAIN CPU) AND IC1 (TMP47C41N : DISPLAY MICROPROCESSOR) a . Data t r a n s m i s s i o n from I C 1 5 ( T M P 4 7 4 0 N )

  • Page 127: Troubleshooting

    D P - 1 1 0 0 B II 4. TROUBLESHOOTING 4-1 Checking flow chart of the start operation from the moment power is switched on until operation is enabled. * Actual action taken by DP-1100B/II Circuits a n d signal line w r i t t e n in parenthesis in the left c o l u m n is the place to be c h e c k e d . P O W E R oi\P) Rising edge of 5 V power...
  • Page 128 • P - 1 1 0 0 B II 4. TROUBLESHOOTING ® Microprocessor for error setting The EFM waveform is distorted, then resumes normally. operates. (A, B, C , INH) (IC12) (CLV bit sync) • The waveform distorts, then The fluorescent display pDATA-j flashes (SVC setting is complete). resumes.
  • Page 129 4. TROUBLESHOOTING Press the 1 to 9 keys and the memory key, Is it possible to memorize? (Display circuit, main microprocessor) (_ Press F F , BWD, | « , » | . Is the above operation normal? (Kick circuit, display circuit) Press the STOP button.
  • Page 130 D P - 1 1 0 0 B II 4. TROUBLESHOOTING 4-1-1 F u n c t i o n s of r e s p e c t i v e display divisions Indicator Main functions DATA When TOC data is all read out normally, lights after completion of search for first program. In addition, it blinks while TOC data is read out.
  • Page 131 D P - 1 1 0 0 B II D P - 1 1 0 0 B II 4. TROUBLESHOOTING 4-2 FOCUS SERVO ( C N 2 ( D ) F S R C H ( C N 2 © ) T h e p i c k u p lens...
  • Page 132 D P - 1 1 0 0 B II D P - 1 1 0 G B II 4. TROUBLESHOOTING 4.3 TRACKING SERVO When the disc has scratches Normal waveform T . E r r o r s i g n a l I C 2 (2/2) O U T P U T W A V E F O R M The output varies depending on the degree of eccentricity of the motor...
  • Page 133 4. TROUBLESHOOTING The time during w h i c h the DCON is effective -5. DROPOUT CONTROL (DCON) varies depending on the state of scratches on the disc. Note: When checking, use a disc with scratches. DCON is not effec­ tive.
  • Page 134 • P - 1 1 0 0 B II D P H O O B II 4. TROUBLESHOOTING E F M (When disc scrat­ ches) G A T E V O L T A G E 4-8. A G C 4-7.
  • Page 135 0 P - 1 1 0 0 B II D P - 1 1 0 0 B II 4. TROUBLESHOOTING PLAY STOP 4-10. CLV When it has started. When it has overrun. (CN8 pin 2) A F C A F C (constant linear verocity) Check the disc motor drive circuit.

  • Page 136: Bit Synchronization

    D P - 1 1 0 0 B II D P - 1 1 0 0 B II 4. TROUBLESHOOTING V C O 17MHz E F M I When the microprocessor is malfunction­ 4-11. BIT SYNCHRONIZATION ing, the symptom does not appear clear­ Stop the disc or shut off E F M .
  • Page 137 D P - 1 1 D 0 B II i D P - 1 1 0 0 B II 4. TROUBLESHOOTING State where muting is not Note: 1. The level at the signal processing digital line is either 0 V or 5 V. effective.

  • Page 138: Display Pcb

    • P - 1 1 0 D B II ! D P - 1 1 D 0 B II 4. TROUBLESHOOTING f he fluorescent display indicates D A T A 2 1 p o w e r o n . 4-14.

  • Page 139: Mechanism Operation

    D P - 1 1 0 0 B II 5. MECHANISM OPERATION 5-1 BRIEF DESCRIPTION MECHANISM SECTION (Details described later in each chapter) 5-1-1 Pickup slide m e c h a n i s m 5 - 1 - 3 T r a y s e c t i o n m e c h a n i s m Operation T r a y operation T w o w o r m gears a n d one w h e e l gear are rotated by the...
  • Page 140 D P - 1 1 0 0 B II 5. MECHANISM OPERATION 5-2 MECHANISMS AND THEIR OPERATIONS 5-2-1 Pickup slide m e c h a n i s m Operation ( S e e Fig. M 1 . ) Hexagon socket setscrew B 2 . 6 x 8 (62) Pickup adjustment mount (817) , Special screw 3 x 1 0 (64) Hexagon socket setscrew A 2 .

  • Page 141: Operation At P O W E R O N

    D P - 1 1 0 0 B II 5. MECHANISM OPERATION 5 - 2 - 2 Eject and loading m e c h a n i s m Operation at p o w e r O N Explanation is given o n l y for loading o p e r a t i o n f r o m t h e a) W h e n OPEN/CLOSE s w i t c h S 0 0 4 is pressed w i t h t h e tray o p e n p o s i t i o n .
  • Page 142 D P - 1 1 0 0 B II 5. MECHANISM OPERATION b) T r a y drive rack (80) is driven by gear C ( 6 7 ) of the l o a d i n g gear g r o u p so t h a t t h e tray (ass'y) is retracted into t h e unit.
  • Page 143 DP-1100B II 5. MECHANISM OPERATION d) T h e tray driven by gear C (67) a n d drive rack ( 8 0 ) is pleted by relay of f o r c e f r o m drive rack ( 8 0 ) t o c l a m p c o m p l e t e d .
  • Page 144 D P - 1 1 0 0 B II 5. MECHANISM OPERATION f) T h e c l a m p e r s e c t i o n (parts ( 3 2 ) , ( 3 5 ) , (36) a n d (37)) e) Lock lever ( 8 1 3 ) is m o v e d by the c a m section of c l a m p e r m o u n t e d o n t h e t o p of c l a m p e r lever ( 8 0 6 ) also l o w e r s t o...
  • Page 145 D P - 1 1 0 0 B II 5. MECHANISM OPERATION 5 - 2 - 3 T r a y section m e c h a n i s m T r a y operation C o n s t r u c t i o n The tray o p e r a t e s as f o l l o w s w h e n the disc is l o a d e d .
  • Page 146 DP-1100B II 5. MECHANISM OPERATION T r a y grounding route T h e electrostatic c h a r g e in the h u m a n b o d y m a y reach a i) C h a r g e d finger f e w kV t o t e n s of kV.
  • Page 147 D P - 1 1 0 0 B II 5. MECHANISM OPERATION 5 - 2 - 4 F G m e c h a n i s m Operation C o n s t r u c t i o n W h e n t h e disc m o t o r rotates, an A C e l e c t r o m o t i v e f o r c e a) 2 0 pairs of N a n d S pole m a g n e t s are radially installed u n d e r the disc t u r n t a b l e (Fig.
  • Page 148 D P - 1 1 0 0 B II 5. MECHANISM OPERATION 5 - 2 - 5 Grounding of e a c h positional detection leaf s w i t c h (1) Start limit d e t e c t i o n leaf s w i t c h T h e respective g r o u n d i n g routes of (1) start limit, (2) c l o s e d tray (loading) a n d (3) o p e n e d tray (eject) d e t e c t i o n leaf s w i t ­...
  • Page 149 DP-IIOOB ri 5. MECHANISM OPERATION 5-3 REPLACEMENT AND REMOVAL OF MAIN COMPONENTS 5-3-1 R e p l a c e m e n t of pickup (Figs. M 2 0 , M21 and M 2 2 ) R e m o v e t w o s c r e w s ( 5 5 ) ( M 3 x 4 ) m o u n t i n g laser p i c k u p ( 3 8 ) , a n d the p i c k u p will be d e t a c h e d .
  • Page 150 D P - 1 1 0 0 B II 5. MECHANISM OPERATION 5 - 3 - 2 R e p l a c e m e n t of disc motor on F G P C B R e m o v e t w o s c r e w s (3) ( M 2 . 6 x 6 ) m o u n t i n g the c l a m p e r lever m o u n t so t h a t t h e overall c l a m p e r lever m o u n t a s s ' y c a n m o v e freely w i t h t h e lead w i r e s k e p t c o n n e c t e d .
  • Page 151 • P - 1 1 0 0 B II 5. MECHANISM OPERATION 5 - 3 - 3 Replacement of pickup carry motor in pickup slide m e c h a n i s m s e c t i o n Remove s c r e w (3) ( M 2 .
  • Page 152 D P - 1 1 0 0 B II 5. MECHANISM OPERATION 5 - 3 - 4 R e p l a c e m e n t of loading motor on loading gear group R e m o v e s c r e w (3) ( M 2 . 6 x 6 ) m o u n t i n g the c l a m p e r lever Gear support washer (65) m o u n t so t h a t overall c l a m p e r lever m o u n t a s s ' y ( 8 1 4 ) c a n...
  • Page 153 5. MECHANISM OPERATION 5 - 3 - 5 R e p l a c e m e n t of tray R e m o v e the f o u r t a p p i n g s c r e w s of the panel r e i n f o r c e m e n t plate a n d f o u r...
  • Page 154 D P - 1 1 0 0 B II 5. MECHANISM OPERATION 5 - 3 - 8 R e p l a c e m e n t of clamper lever mount 5 - 3 - 6 R e p l a c e m e n t of m e c h a n i s m c h a s s i s rubber c u s h i o n R e m o v e s c r e w (3) ( M 2 .
  • Page 155 0 P - 1 1 0 0 B II 5. MECHANISM OPERATION 5-4 LUBRICANT APPLICATION POINTS W h e n r e p l a c i n g a c o m p o n e n t , w h e n the o p e r a t i o n of e a c h (5) Sliding s e c t i o n b e t w e e n p i c k u p roller a n d m e c h a n i s m section g o e s o u t of order, c h e c k t h a t l u b r i c a n t ( 3 0 0 , 0 0 0 unit...
  • Page 156 5. MECHANISM OPERATION 5-5 CLAMPER LEVER HEIGHT ADJUSTMENT W h e n the c l e a r a n c e is smaller at right a n d left, c o r r e c t it by W h e n the disc m o t o r d o e s n o t rotate even if a disc is l o a d e d , p u s h i n g the c l a m p e r lever m a n u a l l y .
  • Page 157 D P - 1 1 0 0 B II 5. MECHANISM OPERATION 5-6 WIRE CONNECTION AND BUNDLING Disc motor (10) PCB (804) 1 . W i r e c o n n e c t i o n for m o t o r s a n d leaf s w i t c h e s is as s h o w n in Fig.
  • Page 158 D P - 1 1 0 0 B II 5. MECHANISM OPERATION Head amplifier PCB (812) Yellow Black 5P socket 4P socket | Do not contact. | F i g . M 4 6 Wiring of h e a d amplifier P C B a s s ' y Servo PCB (X29-1520-00) Pickup motor (26) •...

  • Page 159: Specifications

    D P - 1 1 0 0 B II 14. SPECIFICATIONS DP-1100B DP-1100II Compact disc player Compact disc player D i s c loading s y s t e m Linear skate disc loading D i s c loading s y s t e m Linear skate disc loading m e c h a n i s m m e c h a n i s m...

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