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INDEX
SECTION 1 VIDEO CIRCUIT
1.1 CIRCUIT CONFIGURATION IN GENERAL 1-1
1.1.1 Table of video types (1/4) 1-1
1.2 SIGNAL PROCESSING IN GENERAL 1-4
1.2.1 Signal processing during recording 1-4
1.2.2 Signal processing during playback 1-5
1.2.3 Signal processing during EE 1-5
1.3 THE SVHS ET FACILITY IN GENERAL 1-16
1.3.1 Hardware of the SVHS facility 1-16
1.4 CPU PIN FUNCTIONS 1-18
1.4.1 IC1001 pin functions 1-18
1.4.2 IC1 pin functions 1-20
SECTION 2 3D VIDEO CIRCUIT
2.1 3 DEMENSION VIDEO SIGNAL PROCESSOR SYSTEM 2-1
2.1.1 3 dimension video signal processor system block diagram 2-1
2.2 EXPLANATIONS OF 3 DEMENSION VIDEO SIGNAL PROCESSOR LSI 2-2
2.2.1 EE/REC mode 2-2
2.2.2 PB mode 2-4
2.3 LSI PIN FUNCTION 2-7
2.3.1 3D video signal processor LSI (IC1401) pin function 2-7
SECTION 3 SYSCON CIRCUIT
3.1 EXPLANATION OF SYSCON CIRCUIT 3-1
3.1.1 Outline of syscon system 3-1
3.1.2 Outline of doctor system 3-1
SECTION 4 SERVO CIRCUIT
4.1 EXPLANATION OF SERVO CIRCUIT 4-1
4.2 SIGNAL PROCESSING IN RECORDING 4-1
4.2.1 Processing of DRUM SERVO signal 4-2
4.2.2 Processing of CAPSTAN SERVO signal 4-2
4.3 SIGNAL PROCESSING IN PLAYBACK 4-3
4.3.1 Processing of DRUM SERVO signal 4-4
4.3.2 Processing of CAPSTAN SERVO signal 4-4
INDEX-1
SECTION 5 EXPLANATION OF TYPE 29 MECHANISM
5.1 OUTLINE 5-1
5.2 MECHANISM MODES AND FUNDAMENTAL OPERATION 5-1
5.2.1 Operation of cassette housing 5-1
5.2.2 Mechanism mode shift diagram 5-3
5.3 OPERATION OF MECHANISM PARTS 5-4
5.3.1 Component parts controlled by control cam 5-6
5.3.2 Component parts controlled by control plate 5-7
5.3.3 Cassette holder drive system 5-8
5.3.4 Cassette tape loading system 5-9
5.3.5 Cassette tape drive control system 5-12
5.3.6 Cassette tape drive system 5-16
INDEX-2
SECTION 1
VIDEO CIRCUIT
1.1 CIRCUIT CONFIGURATION IN GENERAL
Let us discuss signal processing in general taking the HR-S9500U as an example.
As can be seen from the video block diagram of the Service Manual, the video circuitry consists of the
VIDEO/ONSCREEN (MAIN board) circuit and the VIDEO, 3D/TBC (3D SVHS board) circuit.
The VIDEO, 3D/TBC (3D SVHS board) consists mainly of the IC1 which carries out normal video signal
processing. This IC has been made by combining together the video signal processor IC and the pre-
recorder IC used in the 1997 model . It therefore basically takes over the functions of those two ICs,
except for a newly introduced function for the SVHS ET system.
The VIDEO, 3D/TBC (3D SVHS board) circuit consists of a SVHS system's proper circuit made up of an
IC1001 and an IC1002 and a picture quality enhancer which consists mainly of an IC1401 (IC1201 in
some models).
In the 1998 version, while all the models are equipped with the VIDEO/ON SCREEN (MAIN board) circuit,
the VIDEO, 3D/TBC (3D SVHS board) circuit is included only in the SVHS models.
All this is summarized in Table 1-1-1.
1.1.1 Table of video types (1/4)
MAIN PWB 3D SVHS or 2D SVHS PWB TRI-R PWB
SVHS Y/C SEPA AND NR IC501
MODEL IC1 IC1001 (JCP8008) 3D (IC1401:JCP8010) or
(VIDEO PROCESS) and or IC3001
IC1002 (VC2076MP) 2D (IC1201:JCP8013) (JCP0065)
U HR-A34U HA118211BNF Not used Not used
HR-A54U HA118211BNF Not used Not used
HR-VP450U HA118211BNF Not used Not used
HR-VP453U HA118211BNF Not used Not used
HR-VP452U HA118211BNF Not used Not used
HR-VP650U HA118211BNF Not used Not used
HR-VP653U HA118211BNF Not used Not used
HR-VP652U HA118211BNF Not used Not used
HR-VP654U HA118211BNF Not used Not used
HR-VP655U HA118211BNF Not used Not used
HR-VP656U HA118211BNF Not used Not used
HR-DD750U JCP8016-NSA/NSB/NVA/NVB Not used Not used
HR-VP658U HA118211BNF Not used IC501
HR-S3500U JCP8016-NSB Used 2D Not used
HR-S4500U JCP8016-NSB Used 2D Not used
HR-S7500U JCP8016-NSB Used 3D Not used
HR-S9500U JCP8016-NSB Used 3D Not used
Table 1-1-1 Table of video types (1/4)
1-1
· Table of video types (2/4)
MAIN PWB 3D SVHS or 2D SVHS PWB TRI-R PWB
SVHS Y/C SEPA AND NR IC501
MODEL IC1 IC1001 (JCP8008) 3D (IC1401:JCP8010) or
(VIDEO PROCESS) and or IC3001
IC1002 (VC2076MP) 2D (IC1201:JCP8013) (JCP0065)
U(C) HR-A34U(C) HA118211BNF Not used Not used
HR-A54U(C) HA118211BNF Not used Not used
HR-VP453U(C) HA118211BNF Not used Not used
HR-VP650U(C) HA118211BNF Not used Not used
HR-VP653U(C) HA118211BNF Not used Not used
HR-VP654U(C) HA118211BNF Not used Not used
HR-VP656U(C) HA118211BNF Not used Not used
HR-DD750U(C) JCP8016-NSA/NSB/NVA/NVB Not used Not used
HR-VP658U(C) HA118211BNF Not used IC501
HR-S3500U(C) JCP8016-NSB Used 2D Not used
HR-S7500U(C) JCP8016-NSB Used 3D Not used
UM HR-J4005UM HA118211BNF Not used Not used
HR-J3005UM HA118211BNF Not used Not used
HR-J4405UM HA118211BNF Not used Not used
HR-J6005UM HA118211BNF Not used Not used
HR-J7005UM HA118211BNF Not used Not used
T HR-DD2000T JCP8016-NSA/NSB/NVA/NVB Not used Not used
HR-DD2100T JCP8016-NSB Used 2D Not used
E HR-J250E HA118211F/AF/BF Not used Not used
HR-J258E HA118211F/AF/BF Not used Not used
HR-J458E HA118211F/AF/BF Not used Not used
HR-J658E JCP8016-MSA/MSB Not used Not used
HR-J700E JCP8016-MSA/MSB Not used Not used
HR-J758E JCP8016-MSA/MSB Not used IC3001
HR-DD858E JCP8016-MSA/MSB Not used IC3001
HR-S7500E JCP8016-MSB Used 2D Not used
HR-S8500E JCP8016-MSB Used 3D Not used
HR-S9500E JCP8016-MSB Used 3D Not used
EK HR-J255EK HA118211AF/BF Not used Not used
HR-J256EK HA118211AF/BF Not used Not used
HR-J455EK HA118211F/AF/BF Not used Not used
HR-J655EK JCP8016-MSA/MSB Not used Not used
HR-J755EK JCP8016-MSA/MSB Not used IC3001
HR-DD855EK JCP8016-MSA/MSB Not used IC3001
HR-S7500EK JCP8016-MSB Used 2D Not used
HR-S9500EK JCP8016-MSB Used 3D Not used
Table 1-1-1 Table of video types (2/4)
1-2
· Table of video types (3/4)
MAIN PWB 3D SVHS or 2D SVHS PWB TRI-R PWB
SVHS Y/C SEPA AND NR IC501
MODEL IC1 IC1001 (JCP8008) 3D (IC1401:JCP8010) or
(VIDEO PROCESS) and or IC3001
IC1002 (VC2076MP) 2D (IC1201:JCP8013) (JCP0065)
EH HR-J658EH JCP8016-MSA/MSB Not used Not used
HR-J758EH JCP8016-MSA/MSB Not used IC3001
HR-DD858EH JCP8016-MSA/MSB Not used IC3001
HR-S7500EH JCP8016-MSB Used 2D Not used
HR-S8500EH JCP8016-MSB Used 3D Not used
HR-S9500EH JCP8016-MSB Used 3D Not used
EA HR-J255EA HA118211AF/BF Not used Not used
HR-J455EA HA118211AF/BF Not used Not used
HR-J655EA JCP8016-MSA/MSB Not used Not used
HR-S5500AMEA JCP8016-MSB Used 2D Not used
EN HR-J452EN HA118211BLF Not used Not used
HR-J456EN HA118211BLF Not used Not used
HR-J656EN HA118211BLF Not used Not used
ES HR-J255ES HA118211AF/BF Not used Not used
M HR-J454M HA118211BLF Not used Not used
HR-J453M HA118211BLF Not used Not used
HR-J653M HA118211BLF Not used Not used
HR-J656M HA118211BLF Not used Not used
HR-DD750M JCP8016-LSA/LSB Not used Not used
ED HR-P23KD HA118211BF Not used Not used
HR-P331KD HA118211BF Not used Not used
EE HR-P135EE HA118211BF Not used Not used
HR-P138EE HA118211BF Not used Not used
HR-J258EE HA118211F/AF/BF Not used Not used
HR-J255EE HA118211F/AF/BF Not used Not used
HR-J259EE HA118211F/AF/BF Not used Not used
HR-J458EE HA118211AF/BF Not used Not used
HR-J459EE HA118211AF/BF Not used Not used
HR-J658EE JCP8016-MSA/MSB Not used Not used
HR-J759EE JCP8016-MSA/MSB Not used IC3001
HR-S7500EE JCP8016-MSB Used 2D Not used
EM HR-J351EM HA118211AF/BF Not used Not used
HR-J457MS HA118211AF/BF Not used Not used
Table 1-1-1 Table of video types (3/4)
1-3
· Table of video types (3/4)
MAIN PWB 3D SVHS or 2D SVHS PWB TRI-R PWB
SVHS Y/C SEPA AND NR IC501
MODEL IC1 IC1001 (JCP8008) 3D (IC1401:JCP8010) or
(VIDEO PROCESS) and or IC3001
IC1002 (VC2076MP) 2D (IC1201:JCP8013) (JCP0065)
A HR-J251MS HA118211AF/BF Not used Not used
HR-J457MS/A HA118211AF/BF Not used Not used
HR-J657MS JCP8016-MSA/MSB Not used Not used
HR-J657MS/S JCP8016-MSA/MSB Not used Not used
HR-DD857MS JCP8016-MSA/MSB Not used IC3001
HR-S5500AM JCP8016-MSB Used 2D Not used
HR-JP12A HA118211BF Not used Not used
HR-P42A HA118211BF Not used Not used
HR-P52A HA118211BF Not used Not used
HR-P72K HA118211BF Not used Not used
HR-JP32K HA118211BF Not used Not used
HR-P92K HA118211AF/BF Not used Not used
HR-P92K/S HA118211AF/BF Not used Not used
MS HR-J256MS HA118211F/BF Not used Not used
HR-J456MS HA118211F/BF Not used Not used
HR-J656MS JCP8016-MSA/MSB Not used Not used
HR-J656MS(C) JCP8016-MSA/MSB Not used Not used
HR-DD659MS JCP8016-MSA/MSB Not used Not used
HR-J756MS JCP8016-MSA/MSB Not used Not used
HR-DD859MS JCP8016-MSA/MSB Not used Not used
HR-S7500MS JCP8016-MSB Used 2D Not used
HR-S8500MS JCP8016-MSB Used 3D Not used
HR-S9500MS JCP8016-MSB Used 3D Not used
SA HR-J255SA HA118211AF/BF Not used Not used
Table 1-1-1 Table of video types (3/4)
1.2 SIGNAL PROCESSING IN GENERAL
Let us discuss signal processing in general taking the HR-S9500U as an example.
1.2.1 Signal processing during recording
Fig. 1-2-1 shows a video signal flow chart during recording.
1) Y-signal processing
The composite input signals from the front and rear tuners are fed to pins 50, 18 and 52 of IC1001.
Those input signals are selected by SW24. The composite input signals then undergo AGC and FBC
processing and are separated between Y and C components at IC1401. The Y signal is then delivered
to IC1001.
On the other hand, the S input Y signals from the front and rear tuners are selected at IC1003 and fed to
pin 46 of IC1001 in order to undergo AGC and other processing.
Selection between the composite input mode and the S input mode is accomplished by SW1 and SW6.
The Y signal, after passing through the N/S-LPS, undergoes non-linear emphasis processing at IC1002
1-4
in the SVHS mode, and is then delivered to IC1 as it is in the VHS mode.
The signal is subjected to normal FM modulation processing at IC1.
2) C-signal processing
The C component of the composite input signal is likewise separated from the Y component at IC1401
and is delivered to IC1001.
Selection of the S input C signal between the front and rear tuners is accomplished by IC1003.
The C signal is then delivered to IC1 via IC2 (REC/PB selector) and undergoes normal low-frequency
range conversion processing.
1.2.2 Signal processing during playback
Fig. 1-2-2 shows a video signal flow chart during playback.
1) Y signal processing
The FM signal from the video head is fed to the pre-amp section of IC1 and is then delivered from pin 79.
Upon switching IC2, the signal passes through the equalizer in the SVHS mode, while going to IC1 as it
is, for normal FM demodulation processing in the VHS mode.
The Y signal after FM demodulation is sent to IC1001 and is subjected to non-linear de-emphasis
processing at IC1002 in the SVHS mode, while going directly to IC1001 in the VHS mode.
The Y signal is then sent to IC1 again and undergoes YNR, DE, APT and ALC processing to go out of
IC1.
It is finally subjected to NR processing (see Sec. 2 for details) at IC1401 and is again delivered to
IC1001. Thereafter, the S output signal goes through pin 26 to be delivered from the S output connector
of the rear tuner.
The composite output is sent to the adder section to be added to the C signal.
After addition, the composite signal going through pin 23 is subjected to onscreen processing at IC201
and is then sent to the composite output terminal and the RF converter of the rear tuner.
Note that for the S output of the onscreen menu, the composite signal delivered from IC201 is fed to pin
25 of IC1001 and is then internally separated between Y and C to be output like a normal Y signal.
2) C signal processing
The FM signal from the video head is delivered to the pre-amp section of IC1. The C component is then
taken out of it at 2MLPF and CLPF and is subjected to normal C signal demodulation processing.
Note that this IC demodulator employs the double main converter system introduced with the 1996
models. See the Technical Guide (VTG82081) of the HR-VF830U/E939EG/J936MS for details.
The demodulated C signal undergoes B.D and other processing to be delivered from IC1.
The C signal is then subjected to NR processing (see Sec. 2 for details) at IC1401 and is fed to IC1001.
The S output signal goes through pin 21 and is delivered from the S output terminal of the rear tuner.
The composite output is sent to the adder with the Y signal to be processed as described for the Y
signal.
The S output signal for the onscreen menu is processed as described for the Y signal.
1.2.3 Signal processing during EE
The video signal flow for the EE system is shown in Fig. 1-2-3 for reference.
1-5
· Signal processing during recording (1/4)
REC mode 0 5 3D SV H S (V I D E O ,3 D / T B C)
Luminance signal path
Color signal path
Composite signal path
IC1005
F-1 C IN 15
13
L-1 C IN 12
3 6 JACK
IC1003
J7194 1 L-1 Y IN
CN7192 CN1004
FRONT C
FRONT C 2 3 7
S IN FRONT Y 5
Y 4 1
F-1 Y IN
R 1 0 1 0, R 1 0 1 2
IC1002
C 1 0 4 1, C 1 0 4 3
10
EQ EP
REC
11 SP 6
EQ
PB
R 1 0 1 1, R 1 0 1 3, R 1 0 1 4
C 1 0 4 2, C 1 0 4 4
REC 1
NL
PROCESS PB
Fig. 1-2-1 Signal processing during recording (1/4)
1-6
· Signal processing during recording (2/4)
Q 1 4 0 6, L1404,
L1405, L1207
C1414 - C1418 Q1405
IC1401 C O U T 75
BPF BUF REC mode
Q 1 4 0 8, L 1 4 0 6 Luminance signal path
C1421 - C1423
YOUT 73
LPF Color signal path
VYIN Composite signal path
82
Q1407
Q1404 BUF BUF
Q1021
BUF
IC1001
39 37 36 33
CLAMP
3D
ON/OFF
3DEE
43 LPF2
CLAMP
+
PB AGC PS C O N V
44 SW2 EE. SEP
EE 28
SW21 SW7
SW1 3DEE
46 SEP.
ATT PS CONV
COM.
48
ATT
FBC
L-1 VIN
50 LPF1
ATT
F-1 V IN SW24
TU
SW22
52
ATT EE. SEP
CN1001
L-1 Y IN
3D NOTCH SW6 24 a
L-1 C IN
26 b
L-1 V IN
30 c
PB PS CONV
SW4 EE
SW14
SW10
N/S-LPF
SW3 VHS PS CONV
56 REC
CN1002
REC C OUT
EQ 26 d
SVHS
CLAMP
1 3
Y T O AV1
11 e
T U V IN
7 f
F-1 V IN
5 g
Fig. 1-2-1 Signal processing during recording (2/4)
1-7
· Signal processing during recording (3/4)
0 3 M A I N (V I D E O / O N S C R E E N)
REC mode
Luminance signal path
Color signal path
Composite signal path
TO TUNER T U VIDEO
J5
C
L-1 S-IN
Y
REAR1 J1
IN
VIDEO
CN101
L-1 Y IN
a 24
L-1 C IN
b 26
L-1 V IN
c 30
REC C OUT CN102
d 26
Y T O AV1
e 11
T U V IN
f 7
F-1 V IN
g 5
3 6 JACK
J7191 CN7191 CN2
F R O N T IN 3 5
VIDEO
Fig. 1-2-1 Signal processing during recording (3/4)
1-8
· Signal processing during recording (4/4)
REC mode
Luminance signal path
Color signal path
Composite signal path
IC2
5
7
78
CLPF 86
R P
+
87
SP2
- U. DRUM
MAIN VIDEO
88
CONV1 CN1 HEAD
8 8 8
R P S P CH2
- 7 7 7
89
SP1 6 6 6
P + S P CH1
BPF P 5 5 5
ACC +
R R 4 4 4
B.E E P CH2
EP2 91 3 3 3
SEP.
HPF - 2 2 2
C.K TRAP E P CH1
REC TRAP R COMP 1 1 1
92
LPF
MIX OFF YCA -
LEVEL REC 93
+ EP1
ADJ MUTE
+
629
TRAP R 94
1M HPF
42
R
D.E. N.L. 7M HPF
FBC/ALC
N.C EMPH.
Y-CCD
P
LAGLEAD
LPF
39
FM MOD
MAIN EMPH
YNR CARRIER
OFFSET f0/DEV ADJ
DO
W.C/D.C
LPF CLAMP CLAMP
26 24 23 21 19
IC1
Fig. 1-2-1 Signal processing during recording (4/4)
1-9
· Signal processing during playback (1/4)
0 5 3D SV H S (V I D E O,3 D / T B C)
IC1401
Q1406, L1404
L1405, L1207
C1414 - C1418 Q1405
COUT 75
BPF BUF
Q1408, L1406
C1421 -C1418 Q1407
YOUT 73
LPF BUF
VYIN
CIN
Q1021
87 82 Q1404
BUF BUF
Q 1 4 0 3, L 1 4 0 1
C1405 - C1407 Q1402
BPF BUF
IC1002
REC
6
PB
NL
PROCESS
R 1 0 1 7, R 1 0 1 8, R 1 0 2 0 REC
C 1 0 4 8, C 1 0 4 9 EP
17 PB
EQ
SP
18
EQ
R 1 0 1 6, R 1 0 1 9, R 1 0 2 1
C 1 0 4 7, C 1 0 5 0
16 1
PB mode
Luminance signal path
Color signal path
Composite signal path
Fig. 1-2-2 Signal processing during playback (1/4)
1-10
· Signal processing during playback (2/4)
IC1001
39 37 33
CLAMP
3DPB
3DEE
3D
ON/OFF
43
CLAMP LPF1 FBC SW23 PS CONV
EE.SEP
LPF2 SWB
+ PB3D SW21
SW2
PB PS CONV
44 EE. SEP
3D
EE
SW22
BB Q1013
26
MUTE 6dB BUF
BB
NOTCH NOTCH SW11
SW6 25
ATT CLAMP
SW9
23
FBC MUTE 6dB
PS CONV PS CONV
CN1001
N.C PB COLOR
Q1011 22 a
BF BB SW13
21
FBC MUTE 6dB BUF
BB
54
CLAMP ATT
SW14 PB CN1002
C OUT
SW4 EE 30 b
N/S-LPF PB Y OUT
SW3 VHS c
56 REC 28
EQ
SVHS CLAMP
V FROM OSD
CLAMP 23 d
V TO OSD
21 e
1 3 5
Y F R O M AV1
15 f
Y T O AV1
11 g
PB Y
9 h
PB mode
Luminance signal path
Color signal path
Composite signal path
Fig. 1-2-2 Signal processing during playback (2/4)
1-11
· Signal processing during playback (3/4)
0 3 M A I N (V I D E O / O N S C R E E N)
PB mode
Luminance signal path
Color signal path
Composite signal path
T O T U N E R R F VIDEO
J6
REAR2 C
S-OUT Y
J2
REAR OUT
VIDEO
Q9
BUF
PB COLOR CN101
a 22 IC201
13
CV OUT
C OUT CN102 15
b 30 CV IN
Y OUT
c 28
Q208
V FROM OSD
d 23 BUF
V TO OSD
e 21
Y F R O M AV1
f 15
Y T O AV1
g 11
h PB Y 9
Fig. 1-2-2 Signal processing during playback (3/4)
1-12
· Signal processing during playback (4/4)
PB mode
Luminance signal path
Color signal path
Composite signal path
IC2
1
7 L13
Q15 C 7 9, C80 Q 1 3, Q14
3
BUF EQ BUF
Q6 Q152
BUF
BUF
52 55 58 60 78 79
6dB AMP VCA
CCD
LPF R P R
R P
CLPF
CLEAR C.K
SYNC DL 629
DELAY TRAP
R P
N P
SOUELH TRAP FM AGC
86
Feed Back B.D P SP2
R P
Clamp EQ
Video ALC CTLTRAP 87
fHHPF U. DRUM
VIDEO
88
CH2 CN1 HEAD
ACC SP1 8 8 8
SP CH2
CH1 89 7 7 7
R P R P
R 6 6 6
P SP SP CH1
35 5 5 5
MAIN MAIN
CONV2 CONV1 2MLPF 4 4 4
EP EP CH2
91 3 3 3