Philips Mz-9 Service Manual

							Service Information
Service Service
Service
ServiceService
Product Service Group CE Audio
3139 785 30089 10 - 09 - 2002
MZ-9/22
A02 - 174
Already published Service Informations :
CHANGES DURING PRODUCTION
FRONT BOARD
* From production week 0217 onwards the following has been changed
to solve Thin/Thick Disc readability problem and to improve on the
Tape transition timings.
Change 7400 3139 110 53251 TMP87CS71F - MZ9S53251
* From production week 0225 onwards the following has been changed
due to material end of life.
Change 7402 9322 140 83682 IC M24C01-BN6
ETF7 ND/DD/FR TAPE MODULE*From production week 0218 onwards the ETF7 ND/DD/FR Tape
Module is introduced to replace the ETF5-FE ND/DD/FR Tape
Module for cost savings. For this reason new layout and circuit
drawing are enclosed (Page 9-1 to 9-14). 
						

							ETF7 TAPE MODULE
(Non-Dolby Version)
9-19-1
TABLE OF CONTENTS
Tape Module Wiring & variation table ....................... 9-1
Block diagram ............................................................ 9-2
Brief Introduction ....................................................... 9-3
Connector assignment ............................................... 9-4
Tape deck electronics & Tape adjustments ............... 9-5
ETF7 Non-Dolby board layouts ................................. 9-6
Analog Circuit diagram .............................................. 9-7
Servo Circuit diagram ................................................ 9-8
Exploded views & parts list ........................................ 9-9
Electrical parts list .................................................... 9-13
REC
FWD 
CRO2* 
REC 
REV
MODE
SW
TAPE DECK 
MOTOR
TO ETF BOARD 
CONNECTOR 1710 (ND) 5P
CONNECTOR 1720 (DB) 6PTO ETF BOARD 
CONNECTOR 1770 (ND) 14P
CONNECTOR 1740 (DB) 14PTO ETF BOARD 
CONNECTOR 1730 (3P)
Tapedeck wiring (Double deck)
+–H
L
CRO2* 
Mechanism  BMechanism  A
* Not for Ferro version
Chrome/Ferro Chrome/Ferro Ferro
2624 - - 100nF
2701 , 2702 150pF 270pF 270pF
2703 , 2704 100pF 220pF 220pF
2717 , 2718 10nF 15nF 15nF
2721 , 2722 6,8nF 6,8nF -
2727 , 2728 470pF 1nF 1nF
3616 10k 1k 1k
3618 6k8 - -
3620 10k trimmer - -
3622 - 10k trimmer 10k trimmer
3672 4k7 - -
3676 47k - -
3687 220R 220R -
3688 680R - -
3723 , 3724 15k 18k 18k
3725 , 3726 10R 10R -
3727 , 3728 5k6 6k8 6k8
3729 , 3730 3k3 4k7 4k7
3743 , 3744 1k5 2k2 2k2
3745 , 3746 3k3 5k6 5k6
3754 , 3755 1M 47R 47R
Variations table for Analog Circuit
Autoreverse Non-autoreverse
ND/DD/FR ND/DD/FFAutoreverse Non-autoreverse
ND/DD/FR ND/DD/FF
Chrome/Ferro Chrome/Ferro Ferro
3769 12k 8k2 8k2
3772 6k8 5k6 5k6
4785 - - 0R jumper
3774 15k 8k2 8k2
6614 1N4148 - -
7616 BC857B - -
7622 BC847B - - 
						

							9-29-2
BLOCK DIAGRAM
Deck B (Rec/Pb) switches, sensors & motor
4xDECK(S) SW.
STATUS TO
VOLTS CONV. 2x
   SOLENOID
SUPPLY CTRL   SOLENOID
SUPPLY CTRL
MOTOR VCC
SUPPLY CTRL
NS/HS CTRL
Deck A (Pb) switches, sensors & motor
NOM/HI SPEED
    REC EON.
IEC I        IEC II
    REC EON.
REC EON. SW.
  HEF4952BT
RECORD AMP
  NJM4560D
OSCILLATOR
REC
CRB
Line-In
Playback
Head
Rec/Pb
Head
Erase
Head BIAS SYM
HD SW. BIAS ADJ
Erase Bias
REC
ALCEN
PRE-AMPLIFIER
     AN7318S
SOURCE SEL
 HEF4952BT
1A0 1A1 1A2
Rec current
ATTEN
ALC
   PLAYBACK
EQUALISATION PB EON. SW.
HEF4952BT
2A0  2A1  2A2
MPX
1A0
1A1
PB A ADJ
PB B ADJRec InPB In
2A2
DOLBY B NR
   CXA1101M
REC OutPB Out
REC ADJ
    SHIFT
REGISTER
HEF4094BT
3A0    3A1    3A2
(HS) (REC) (CRB)
DOLBY
NOM/HI SPEED
    REC EON.
3A0    NS
2A2
MUTE
For Dolby version only
PB Out
ATTEN
4794 #
9792 #
#
CLK
D ATA
STROBE
#  For Non-dolby version only
Only 1 channel is presented.
NOTE:
MicroProcessor Control / Communication lines
Direct / Indirect Control lines from Shift RegistersAD1    AD2
1A2
1A1
ALCEN
1A0
REC7787
7791
7780
7710
7720
7740
7730 7630
7640
1A0
2A1
2A2
REC
NS/HS  (NS)
HS
NS/HS
(NS)
3A0
2A0
CRA
7792
7622 77887610 
						

							9-39-3
General
1.
Playback Mode
Signal from the playback head Deck A or Deck B is selected and fed through by the Mode Selector IC7710 (HEF4952BT).
The signal is amplified by amplifier IC7720 (AN7323S) before feeding to the IC7740 (HEF4952BT) and out to the AF Board
via connector 1701.
2.
Recording Mode
Recording Signal is selected and fed through by the Mode Selector IC7710 (HEF4952BT) which is then amplified by the
amplifier IC7720 (AN7323S). The amplified output signal will pass through IC7730 (HEF4952BT) for record equalization and
back to IC7710 (HEF4952BT) before registered into the Rec/PB Head of Deck B.
3.
Dubbing Mode
In Dubbing mode, signal from the playback head Deck A is selected and fed through by the Mode Selector IC7710
(HEF4952BT) which is then equalised for playback mode by the amplifier IC7720 (AN7323S) so that a flat response is
obtained after the pre-amp. The equalised signal will then follow the same path as in the Recording mode.
4.
Mode Selector
The Mode Selector IC7710 (HEF4952BT) caters for 4 inputs signal, namely Playback Signal from Deck A, Playback Signal
from Deck B, Recording Signal and Dubbing Signal.
5.
Amplifier PB/REC
Amplifier IC7720 (AN7323S) is for the purpose of amplifying the Playback and Recording signal from the Mode Selector.
6.
Automatic Level Control (ALC)
ALC circuit consists of resistors (3760, 3765, 3766, 3767), capacitors (2762 , 2763) and control by transistor 7787 (BC847B).
ALC limits the amplifier output to a constant value when input signal becomes too large, thus limiting recording current to
below saturation level, to prevent recording distortion.
7.
Muting Circuit (For Non-Dolby version only)
Switch S4 of the IC7740 (HEF4952BT) is for the purpose of muting the output during Recording mode.  During Recording
mode, S4 is closed and shorted to the ground.
8.
IC7740 (HEF4952BT)
The function of the IC7740 (HEF4952BT) is to change time constant between 120us Ferro (IEC I) and 70us Chrome (IEC
II) during playback mode.  It will automatically determined whether the tape type is 120us Ferro (IEC I) or 70us Chrome (IEC
II). This IC will switch to Flat Gain during the Recording mode.
9.
IC7730 (HEF4952BT)
The function of the IC7730 (HEF4952BT) is to change gain and time constant according to tape type and recording speed
to boost recording current at higher frequency during recording to compensate for head loss.  It will automatically determined
whether the tape type is 120us Ferro (IEC I ) or 70us Chrome (IEC II).
10.
Bias Level
Bias Level making use of the Variable resistor (3773) for adjusting the optimal level of the bias current for Ferro or Chrome.
11 .
Bias Symm (For Dolby B NR version only)
Bias Symm making use of the Variable resistor (3785) to adjust the bias current for the left and the right channel to be equal.
12.
PB Switch
Playback Switch which consists of the FETs 7785 (For Dolby B NR version only) & 7786 (J111) is for the purpose of providing
a virtual ground for the Rec/PB Head (Deck B) during Playback mode.  During the Playback mode, the FETs are turn on and
shorted pin 2 and 4 of connector 1720 to the ground. During Recording mode, the FETs are turn off to allow the oscillator
signal to be superposition onto the Recording signal for recording.13.
Motor Speed (For FR versions only)
During High speed dubbing, a feedback signal from the uP through pin 03 of the IC7610 (HEF4094BT) will trigger the
transistors 7622 (BC847B) and 7616 (BC857B) to cause a change in the voltage level between High and Low,  thus changing
the speed of the motor.
14.
IC7610 (HEF4094BT)
IC7610 (HEF4094BT) is a Shift Register use for issues the logic for cmos switch ICs (HEF4952BT) via 1A0, 2A1 and 2A2.
It also issues logic to On/Off SOL_A, SOL_B and MOT.  Recording speed is controlled via NS/HS.
Dolby Circuit (For sets with Dolby B NR version only)
15.
IC7630 (CXA1551M)
IC7630 (CXA1551M) in the Dolby circuit is a Dolby Noise Reduction Type B IC for the Playback and Recording signal. Noise
Reduction ON/OFF are controlled by DOLBY, which is from CLK, direct from uP. After clocking in DATA, CLK is set to HIGH/
LOW for NR OFF/ON.
16.
19kHz Filter
The 19kHz filters 5631 & 5632 (LXD-210) in the Dolby circuit is for the purpose of filtering the 19kHz Pilot Tone (for Tuner
signal only) of the Recording signal.
17.
Level Adjust
The Variable resistor 3635, 3636,3641 and 3642 in the Dolby circuit is for adjusting the playback level of the Dolby reference
(400Hz , 200nWb/m). Transistor 7631, 7632 are ON to enable adjustment of 3641, 3642 during Playback Deck A. Transistor
7633, 7634 and 3635, 3636 are active for Playback Deck B.
18.
Amplifier IC7640 (NJM4560M)
The Amplifiers 7640A & 7640B (NJM4560M) in the Dolby circuit is for the purpose of amplified the Recording signal.
19.
Muting Circuit
The muting circuit which consists of transistors 7788, 7789 and 7790 (BC847B) is for the purpose of muting the output during
Recording mode.
Brief introduction
NOTATIONS & ABBREVIATIONS USED IN THIS
DOCUMENT
CR Chrome (IEC type II)
DB Dolby NR type B
DD Double Deck
DM Double Motor
FE Ferro (IEC type I)
FF Non-Autoreverse
FR Autoreverse Deck B
Gnd x Ground x
HSD High speed dubbing
ND Non Dolby
NR Noise Reduction
NSD Normal speed dubbing
PB Playback
REC Record
S/A Sub-assy
SD Single Deck
SM Single Motor 
						

							CONNECTOR 1740DECK A & B CONTROL INTERFACE (For Dolby B NR version only)
1 REC REW Record tab protection status switch (reverse) [open=on: close=off]
2 CrO2 BChrome tape detection switch deck B [open=Cr: close=Fe]
3 REC FWD Record tab protection status switch (forward) [open=on: close=off]
4 PHOTO B Photo sensor output (tape movement indication)
5 SOL B Solenoid supply for deck B
6 Vcc Deck / Motor supply
7 MODE B Mode switch (head engagement) [open=off: close=engaged]
8 GND M Deck / Motor ground
9 SOL A Solenoid supply for deck A
10 PHOTO A Photo sensor output (tape movement indication)
11 MODE A Mode switch (head engagement) [open=off: close=engaged]
12 L L pin for motor
13 CrO2 A Chrome tape detection switch deck A [open=Cr: close=Fe]
14 H H pin for motor
CONNECTOR 1770DECK A & B CONTROL INTERFACE (For Non-Dolby version only)
1 REC REW Record tab protection status switch (reverse) [open=on: close=off]
2 CrO2 BChrome tape detection switch deck B [open=Cr: close=Fe]
3 REC FWD Record tab protection status switch (forward) [open=on: close=off]
4 PHOTO B Photo sensor output (tape movement indication)
5 SOL B Solenoid supply for deck B
6 Vcc Deck / Motor supply
7 MODE B Mode switch (head engagement) [open=off: close=engaged]
8 GND M Deck / Motor ground
9 SOL A Solenoid supply for deck A
10 PHOTO A Photo sensor output (tape movement indication)
11 MODE A Mode switch (head engagement) [open=off: close=engaged]
12 L L pin for motor
13 CrO2 A Chrome tape detection switch deck A [open=Cr: close=Fe]
14 H H pin for motor
CONNECTORS ASSIGNMENTS:
CONNECTOR 1701INTERCONNECTION TO AF BOARD
1 REC-L Record input left
2 REC-R Record input right
3 GND A AF  Ground
4 TAPE-L Playback output left
5 +12V D.C. supply (+12V) for AF electronics
6 TAPE-R Playback output right
7 -CMOS Negative d.c. supply (-9V) for CMOS ICs
CONNECTOR 1703INTERCONNECTION TO AF BOARD
1 GND M Motor Ground
2 +MOTOR D.C. supply (+12V) for tape deck motor & solenoid
CONNECTOR 1706INTERCONNECTION TO FRONT BOARD
1 AD2 Deck sensing switches output voltage / Deck A EOT
2 AD1 Deck sensing switches output voltage / Deck B EOT
3 +5V DC supply +5V for ADC network
4 GND P Control & Oscillator Ground
5 CLK HEF4094BT shift register Clock line
6 DATA HEF4094BT shift register Data line
7 STROBE HEF4094BT shift register Strobe line
CONNECTOR 1710DECK B HEADS CONNECTON (For Non-Dolby version only)
1 B  R/P HD L+ R/P Head left channel positive
2 GND A R/P Head return ground
3 B  R/P HD R+ R/P Head right channel positive
4 ERASE HEAD Erase Head
5 GND A Erase Head ground
CONNECTOR 1720DECK B HEADS CONNECTON (For Dolby B NR version only)
1 B  R/P HD L+ R/P Head left channel positive
2 B  R/P HD L- R/P Head left channel negative
3 B  R/P HD R+ R/P Head right channel positive
4 B  R/P HD R- R/P Head right channel negative
5 ERASE HEAD Erase Head
6 GND AErase Head ground
CONNECTOR 1730DECK A HEAD CONNECTIONS (For Double Deck versions only)
1 A  PB HD L+ Pb Head left channel positive
2 GND APb Head return ground shield
3 A  PB HD R+ Pb Head right channel positive 9-4
9-4 
						

							9-59-5
# For Auto-reverse version only
* If high frequencies are not within limits, decrease bias and re-measure.
If distortion is too high, increase bias and re-meaure
^ Not applicable for Ferro version PLAYmV-meter
check
limits see fig.1
CHECK PLAYBACK FREQUENCY RESPONSE
TAPE ADJUSTMENT & CHECK TABLE
TEST
CASSETTERECORDER
MODEMEASURE
ONREAD ONADJUST
with
ADJUST MOTOR SPEED
SBC420
3150HzPLAY B
PLAY Afrequency
 counter3620
check
NORMAL SPEED
PLAY
PLAY FWD
PLAY REV #W&F-meter
mV-meterleft hand screw
right hand screwmax. output level
    & left=right
CHECK WOW & FLUTTER
DECK A & B ADJUST AZIMUTH 3150Hz +/- 0.5%
3150Hz -0.8/+1.8%
 
						

							9-69-6
COMPONENT LAYOUT
CHIP LAYOUT
3139 113 3409 pt2  dd wk0042
3
42
1
653139 113 3409 pt2  dd wk0042
Some location on this board is prepared for both 0603 & 0805 SMDs footpr\
int,
in such locations 0603 SMDs may be substituted.
3
42
1
65 
						

							9-79-7
ANALOG CIRCUIT
21
34
3
4
6
5
01
11 1
1
1
CHANNEL
S2 S1
11
S3
0
0
S3
REC MUTE
#    For Provision Only
#
# #
1701 F9
1710 C1
1730 A1
2701 B2
2702 B2
2703 A2
2704 B22705 A2
2706 A2
PB/REC
Pb deck B
S1
S3 S0
0S4
1
LEFT CHANNEL
11
1
01
123456789
12345
1
1
1
0 STOP
S1
0
--
1
1 01
*
*
1
--1 S1
0
6789 A
B
C
1
1
RIGHT
A0
0
10
S2
S3
S0
S1
S0
1
1
S4
S2
1
MODE
D
E
FA
B
C
D
E
F
S4
EQUALISATION
01
HS ChromeA0 S0
1
0
1
S2
1
SELECTOR
----
HS Ferro
2707 A4
2708 B4
2709 A5
2710 B5
2711 A62712 B6
2713 A6
2714 B6
2715 A4
S2
REC-L 11
0
0DECK B
1
11
DECK A
S0
1S2
1
11
0
2716 C4
2717 C6
2718 D62719 C5
2720 D5
2721 C5
2722 D5
2723 C5
2724 D5
2725 D42726 D4
2727 A3
0
0
-CMOS REC MUTE
1
A1 A2
AMPLIFIER
1 RECA2
NS Ferro
+12V
0
1
2728 E5
2729 A8
2730 B8
2733 A5
2734 C42735 B3
2737 A6
2738 B6
2741 D6
2742 C3
2743 F1
2744 A42745 F5
A0Pb deck A
1
1 1
11
1
CONTROL LOGIC
0
1
00
2746 F8
2747 E8
2760 E3
2761 B5
2762 B6
2763 B62765 B4
2769 F7
2770 F8
2780 F3
2781 F2
2782 F2
2784 F12785 F1
2786 D1
2787 D3
3701 B1
3702 C2
3703 A2
0HS Chrome
A1
S0
1
00
GND_A TAPE-R
S4 S3 S0
1
1
0
S2
3704 B13705 A4
3706 B4
3707 A5
3708 B4
3709 A4
3710 C4
3711 A53712 B4
3713 A7
3714 B7
3715 A6
3716 B6
3717 C6
1Pb Ferro
1
*
* *
*
*
* *
*
*
* *
*
*
3718 E63719 C6
3720 E6
3721 C6
3722 D6
3723 A3
3724 D5
3725 C53726 D5
3727 A7
3728 B7
3729 A7
3730 B7
3731 A7
3732 B73733 A2
TO/FROM  AFERASE
1
S3
1
S0
S3
1
1
10
S1
L
TAPE-L S1
1
3734 B2
3735 A2
3736 B1
3741 A6
3742 C7
3743 F83744 F8
3745 F8
3746 E8
3748 C8
3749 C7
3751 E5
1
1
Not For ND/DD/FR
1
Pb Chrome
STOP
--
3752 F43753 F5
3754 E8
3755 E7
3756 D8
3757 D8
3758 D8
3759 D73760 A7
3761 E3
3762 E2
3763 A5
3764 A5
3765 B6
3766 B73767 A7
3768 E8
3769 E4
3770 F2
3771 F2
3772 F3
REC in
S30
1
--
1
1
S4
1
01
A2
NS Chrome
3773 E33774 E3
3775 F3
3776 F2
3777 F2
3778 E1
3779 D3
3780 D23781 D2
3784 D1
3786 F4
3787 C3
3788 C3
3789 F4
4790 C34794 C6
5701 D2
*
REC/PB
*  See Variant Table for details
* *
A11
1
*
1
1
*
5703 F1
6770 E2
6771 E2
6772 D1
6773 D16774 D3
6775 C3
6776 F3
6777 E2
6778 E4
6782 C7
6785 A76786 B7
7710 A3
7720 A5
7730 D6
7740 A8
Dubbing
S4
0
*
REC MUTE
*
--
*
7780 F4
7781 F37782 E1
7783 E2
7784 D2
7786 C2
7787 C8
7791 F5
7792 D89791 A8
9792 B8
9793 A6
LEVEL
S4
OSCILLATOR
1
1
00
S2
PLAY BACK
1
0
S4
1
S0
REC EQUALISATION
11
REC-R
S4
PLAYBACK
0
1
S1
ANALOG CCTRY
1 1
0
S2 S1
S3
AN7323S
01
1
BIAS
4n7 27267784
BC857B
1M 3787
100n 2746
A07A19A210
VDD
HEF4952B7730
7782220R3701
+C
B4
A
3789
47K
A A
2784
15n
1N414867787792
BC847B
P
2706
220p
2A0
33n 2719 3736
22K3760
120R
A A
1N41486776P3K3
7786
J111470p2727
3K9 3722
27421K2
1M 3780
47u 2763
100p 2711
100n2741 15K 3723
3703
220R
6K8 37693730
3770
1K5100R
3720
12K
+12
A3708
A
2735
100n
4n7 2782
P3712
150K
3779
330KM
2738 A
100n
A
330p2709
1 2 3 4 5 6 7
2720
33nP
1701
B3HS
220R3704
470p 2728
P3728
5K6
+5
2722
6n85K6 3727
1
2
3
BC847B 7781BC847B 7787 1730
BZX79-F8V26777
3751
10K
A 3771
1K23746
470p2707
3764
3K3 A
220R
P A
6785
1N4148
3745
3K3
3A0
1
2
3
4
5
2u2 5701
1710
RECB1
4u7 2762
3754
1M
+C
10R 3714
22u 2780
13
VEE4VSS8 16
1 14
3 12
5 11
6 15
2CRB
3748
2K2
B2
A
A
CRB
3774
15K
3A0
1M 3755 1N41486771
100n 2737
470p 2770
A19A210
VDD13
VEE4VSS8 16
1 14
3 12
5 11
6 15
2HEF4952B7740
7
A0
220u 2761
6786 1N41488K2 3732
A
-C
150p 2702
1N4148
1A14K73773
3753
100K
6774
A A
A22n 2743
3759
10K
1A0
470p 2733
REC_R
3788 2760
100n
1K8 3716
A
1M
12K 3719
37523724
15K A
M
100K
22n
3762
820R A
B4
6775
1N4148
P
A P
LH
271410u
10K 3758
2A1
+12-C
A3749
47K 470p 2734
PA
2708
470p
3713
100p2704
2745
100n
10R
AP10n 2717
CRA
3765
39K A100n2744
3742
2K2
REC_L+C
2747
100n
A
ALCEN
REC
A
37663733
1K2
2769
470p4M7
HS
8K2 3731
7
MT18MT2
1 23
4 5 6A
B2
A
CLNS-2A833 YEZ
5703
B1REC
A
3777
150R
+122A2
4790
1A0 LH
2781
10n
220R3702
4M7 3781
3710
10R
9791
2725
4n7
2713
10u
3705
220R
1N4148
B3
6772
220p2705
3768
10K A
47943709
10R3725
10R
A
REC
2K2 3718
3786
22K
1A1
-C
3772
6K8
1A0
AAAA
1 14
3 12
5 11
6 15
2
3744
1K5
HEF4952B7710
7
A0
A19A210
13
VDDVEE
4VSS8 16
1K82A0
A+12
3715
REC_R
3784
1K
7783
BC847B2721
6n82K2 3741
A
4M7 3767 330p 2710
3735
22K
2786
100p
2703
100p
+5
P
3734
P 3776
6K83757
BC847B 7791220K
15n 2724
7780
BC847B
3743
1K5
ALCEN
10R 3726 A
A P
100p2712
9793
22n 273022n 2729
3707
100R
REC_L
47u 2765 3775
4R7
9792
150p2701
220R3706
220K3756
-C
3721
3K96782
1N4148 150K
P 2718
10n 15n 27233763
+C
A
BC557B1N41486773
P
NC19NC2
6NF1
11NF2
4OUT1
13OUT2
5
PC112PC2
15RF Vcc
16
3729
3K3
7720
3
AIN1 ALCC
2 14
AN2
1GND
IN1
7 10
IN2
8
3761
10K
2716
470u 6R8 3778
1u 2785
2715
470u150K3711
A
6770
1N4148
2K2
-C
2787
33n
3717
P
Note  :  Some values may varies, see respective parts list for correct value.
*
**
* 
						

							9-89-8
SERVO CONTROL CIRCUIT
L
Gnd
*
B
CD
E
1702 A71703 B1
1706 E1 1760 B8
1770 B7
2621 D2 2622 D2
#  For Provision Only
GND_P
*AD1
DATA
TO/FROM  FRONT
123456789
1234
sol_B
STROBE
*
DECK AB
56789
A
BCD
E A
2623 D2
2624 E2 2625 E4
2626 B1
2627 A7 3601 B2
3602 C2
3603 B2 3604 C2
3605 B3
3606 C3 3607 C6
3608 D6
* 
* 
*  * 
* 
* * 
CCTRY
Rec_RVS
* 
#
#
##
* 
3609 C63610 D6
3611 C6
3612 D6 3613 B2
3614 C6
3616 A5 3618 A4
photo_B
*  See Variant Table for details
+5 Rec_RVS
H
3619 A4
3620 A4 3622 A4
3623 B3
3624 B6 3625 B3
3626 B6
3628 A5 3630 A6
3672 B4
Rec_FWD
*AD2
Rec_RVS
L Not For ND/DD/FR
3674 B5 3676 C5
3678 B5
3679 B3 3680 C5
3685 D2
3686 E6 3687 D2
3688 A5
3689 E3 4785 D2
4795 E3
6611 A2 6612 B6
6614 B4
7610 D4
mode_A
SERVO CONTROL
7612 A67613 A3
7614 A6 7616 A4
7618 B6
7619 B4 7620 B6
7622 B5
7623 D2 7624 D6
9705 A7
10K
--
mode_B
Vcc
CrO2_B
10K
47K
3676
7618
BC847B
100n 2626M
+5
1A0
1703
1
1N40036611
100n 2624
100K
3628
3679
47K
120K 3610PMBT2907
7613
CRB
100K3685
P7610
HEF4094BT
M
100K
36862A1
3601
2K2
680R3688
3608
+MOTOR M
L
CLK
L
1
VDD
16 8
VSS
CP
3 D
2
E015 4
O0
5
O1
O2 67
O3
14
O4 13
O5
12
O6 11
O7
Os
9 Os’
10
STR
+MOTOR
56K
3612
7619
BC847B
+5
6K8
36181702
3604
56K
+5
3623
100K
CRA
3613 27K
3622
BC857B 7616
100n 2627
+MOTOR
+5 9705
+5
4K7
3689
2K2
3607
6 7 8
1n
2621
7 8
9
17601 2 3 4 5
1770
1
10 11 12
13 14
2
3 4 5 6
REC
4795
1N4003 6612
47K
3680
M
3678
47K
36744K7
100K
+MOTOR
P
2
360227K
3624
4785 M
PMBT2907
7614
M
M
BC847B 7623
2625
100n
6 7
M
2A2
1706
1
2 3 4 5
6614
1N4148
M
3606
120K
7622
BC847B
10K
3616
3626
1K
BC847B 7620
3611 2K2
P 1K
3625 PMBT2907
7612
2K2
3603
2K2
3605
27K
3614
+5 7624
BC847B
27K
P
3609
2K2
3687
220R
680R 3619
P
M 3672
4K7
2622
470p
3620
HS
470p2623
PHOTO_A
CR02_A PHOTO_A
SOL_A
CR02_A
3630
470RSOL_A
Note  :  Some values may varies, see respective parts list for correct value.
* 
* 
*  
						

							9-9
9-9
TAPE MECHANISM - MOTOR EXPLODED VIEW
31 4822 361 11055 Motor Assembly
91 - Screw M2,6 x 5
92 - Screw M2 x 5
Note: Only the parts mentioned in this list are normal
service spare parts.
TAPE MODULE EXPLODED VIEW
1 3139 118 77130 Autoreverse Mech. CWE44FR01
1 3139  118  77140 Non-Autoreverse Mech.  CWE44FF02  Chrome/Ferro
1 3139 118 77950 Non-Autoreverse Mech. CWE44FF05  Ferro
3 - Screw D3 x 10
6 - Screw M2 x 16
7 3139 110 34080 Flex Cable 14 pin 7,5 cm
Note: Only the parts mentioned in this list are normal service spare parts.