Philips 21PV375/01/07/39/58 User manual

Service Manual
Service
Service
Service
TV-VCR Combination
Contents
Chapter
Adjustment Procedure
Schematic Diagrams and CBA's
Exploded Views
Mechanical and Electrical Parts Lists
Sec. 1:
Safety regulations require that the set be restored to its original
condition and that parts which are identical with those specified
be used.
Published by BK 2003 Video Service Department Printed in Japan c Copyright reserved Subject to modification GB 3103 785 22240
Survey of versions:
/01 PAL-BG, EURO
/07 PAL I, UK/IRELAND
/39 PAL/SECAM-BG+PAL/SECAM-L/L',FRANCE
/58 PAL-BG/DK+SECAM-BG/DK,EAST-EURO
21PV375/01/07/39/58
For technical data reference is made to the Service Manual of
14PV374/01/07/39/58 & 14PV375/01/07/39/58 3103 785 22220.
The present Manual states only the differences.
Sec. 2: Standard Maintenance
Mechanism Alignment Procedures
Disassembly / Assembly of Mechanism
Deck Exploded Views

1-4-3 T6500IB
OPERATING CONTROLS AND FUNCTIONS
[ 21PV375/ ( 01, 07, 39, 58 ) ]

1-4-4 T6500IB

1-5-6 T6500DC
CABINET DISASSEMBLY INSTRUCTIONS
[ 21PV375/ ( 01, 07, 39, 58 ) ]
1. Disassembly Flowchart
This flowchart indicates the disassembly steps for the
cabinet parts, and the CBA in order to gain access to
item(s) to be serviced. When reassembling, follow the
steps in reverse order. Bend, route and dress the
cables as they were.
Caution !!
When removing the CRT, be sure to discharge the
Anode Lead of the CRT with the CRT Ground Wire
before removing the Anode Cap.
2. Disassembly Method
(1): Order of steps in Procedure. When reassembling,
follow the steps in reverse order.These numbers
are also used as the identification (location) No. of
parts in Figures.
(2): Parts to be removed or installed.
(3): Fig. No. showing Procedure of Part Location.
(4): Identification of part to be removed, unhooked,
unlocked, released, unplugged, unclamped, or
desoldered.
S=Screw, P=Spring, L=Locking Tab, CN=Connec-
tor, *=Unhook, Unlock, Release, Unplug, or
Desolder
2(S-2) = two Screw (S-2)
(5): Refer to the following "Reference Notes in the
Table."
Reference Notes in the Table
1. Removal of the Rear Cabinet.
Remove four screws (S-1) and two screws (S-2).
Disconnect connector CN151 and remove the Rear
Cabinet.
Caution !!
Discharge the Anode Lead of the CRT with the CRT
Ground Wire before removing the Anode Cap.
2. Removal of the Power Unit and Tray Chassis Unit.
Discharge the Anode Lead of the CRT with the
CRT Ground before removing the Anode Cap.
ID/
LOC.
No.
PART
REMOVAL
Fig.
No.
REMOVE/
*UNHOOK/
UNLOCK/RELEASE/
UNPLUG/DESOL-
DER
Note
[1] Rear
Cabinet 1,2,5 7(S-1), 2(S-2), *CN151 1
[2]
Power Unit
and Tray
Chassis
Unit
3,4,5
Anode Cap, *CN501,
*CN551, *CN601,
CRT CBA, Power
Knob
2
[3] Power Unit 3,5 *CN502, *CN552,
*CN602 3
[4]
Tray
Chassis
Unit
3 ---------- -
[1] Rear Cabinet
[4] Tray Chassis Unit
[9] Text CBA
[8] Deck Unit
[7] Bottom Plate
[6] Top Shield
[10] Main CBA
[3] Power Unit
[2] Power Unit and Tray Chassis Unit
[5] H.V./Power
Supply CBA
[11] CRT
[5]
H.V./Power
Supply
CBA
36(S-3) 4
[6] Top Shield 3 5(S-4), CL604 5
[7] Bottom
Plate 3(S-5) 6
[8] Deck Unit 3, 5
7(S-6), (S-7), (S-8),
Desolder *(CN201,
CL401, CL402,
CL403)
7
[9] Text CBA 3, 5 (S-9), *CN751,
*CN752 8
[10] Main CBA 3 4(S-10) 9
[11] CRT 4 4(S-11) 10
↓
(1)
↓
(2)
↓
(3)
↓
(4)
↓
(5)
ID/
LOC.
No.
PART
REMOVAL
Fig.
No.
REMOVE/
*UNHOOK/
UNLOCK/RELEASE/
UNPLUG/DESOL-
DER
Note

1-5-7 T6500DC
Disconnect the following: Anode Cap, CN501,
CN551, CN601, CRT CBA, and Power Knob. Then
pull the Power Unit and Tray Chassis Unit out
backward.
3. Removal of the Power Unit.
Disconnect connectors CN502, CN552, and
CN602. Then slide the Power Unit out.
4. Removal of the H.V./Power Supply CBA.
Remove six screws (S-3) and pull up the H.V./
Power Supply CBA.
5. Removal of the Top Shield.
Remove five screws (S-4) and CL604, and remove
the Top Shield.
6. Removal of the Bottom Plate.
Remove a screw (S-5). Then slide the Bottom Plate
out front.
7. Removal of the Deck Unit.
Remove seven screws (S-6), screw (S-7) and
screw (S-8). Then, desolder connectors (CN201,
CL401, CL402, CL403) and lift up the Deck Unit.
8. Removal of the Text CBA.
Remove screw (S-9), and disconnect connectors
CN751 and CN752. Then, lift the Text CBA up.
9. Removal of the Main CBA.
Remove four screws (S-10) and pull up the Main
CBA.
10.Removal of the CRT.
Remove four screws (S-11) and pull the CRT back-
ward.
Fig. 1
S-1
S-1
S-1 S-1
S-2 S-2
[1] REAR CABINET
[1] REAR CABINET
S-1
S-1
S-1
S-2
S-1
S-1
Fig. 2

1-5-8 T6500DC
Fig. 3
[5] H.V./Power Supply CBA
Power Knob S-3 S-3
S-3
S-3
[3] Power Unit
S-4
S-4
S-4
S-4
S-7
S-8
S-6
S-6
S-6
S-6
[4] Tray Chassis Unit
[9] TEXT CBA
[8] DECK UNIT
[10] MAIN CBA
[6] Top Shield
S-10
S-10
S-10 S-9
S-10
S-5
Text
Holder
[7] Bottom Plate
[2] Power Unit and Tray Chassis Unit
CL604

1-5-9 T6500DC
Fig. 4
S-11
S-11
S-11
S-11
Anode Cap
[11] CRT
CRT CBA

1-5-10 T6500DC
Fig. 5
CN501
SCREEN FOCUS
CN502
CN501B
CN752
CN751
CN201
CL402
CL401
CL403
CN151
CL302A
CL603A
CL301A
CL501A
CN601
CN552
CN551
CN602
CN901 CN902
CRT
ANODE
GND
MAIN CBA
H.V./POWER SUPPLY CBA
TEXT CBA
TO SPEAKER
FE HEAD
CYLINDER
ASSEMBLY
AC HEAD
ASSEMBLY
CAPSTAN
MOTOR
DECK UNIT
TO DEGAUSS
COIL
CRT CBA

1-6-10 T6500EA
ELECTRICAL ADJUSTMENT INSTRUCTIONS
[ 21PV375/(01, 07, 58, 39) ]
General Note:
"CBA" is abbreviation for "Circuit Board
Assembly."
NOTE:
Electrical adjustments are required after replacing
circuit components and certain mechanical parts.
It is important to perform these adjustments only
after all repairs and replacements have been com-
pleted.
Also, do not attempt these adjustments unless the
proper equipment is available.
Test Equipment Required
1. PAL Pattern Generator (Color Bar, Monoscope,
Black Raster, White Raster, Sympte)
2. SECAM Pattern Generator (Gray Scale)
3. AC Milli Voltmeter (RMS)
4. Alignment Tape (FL6A), Blank Tape (E180)
5. DC Voltmeter
6. Oscilloscope: Dual-trace with 10:1 probe,
V-Range: 0.001~50V/Div,
F-Range: DC~AC-60MHz
7. Frequency Counter
8. Plastic Tip Driver
9. RF input (at each broadcasting system)
Receiving Channel : VHF Low
Input level : 80dBµV
10.Ext.input
FRONT VIDEO-IN JACK or REAR SCART JACK
How to Set up the Service mode:
NOTE:
After replacing the IC202 (Memory) or Main CBA,
the set value in IC202 (Memory) will be lost. So it
is necessary to set up or adjust in the Service
mode after its replacement.
Service Mode:
1. Turn the power on. (Use main power on the TV
unit.)
2. Press [STANDBY/ON], [2], [7], [1], and [MUTE] but-
tons on the remote control unit in that order within 5
seconds.
- To cancel the service mode, press [STANDBY/ON]
button on the remote control.
How to set up the option code
1. Enter the Service mode.
2. Press the [STATUS/EXIT] button on the remote
control unit. The option code appears on the dis-
play.
3. If needed, input the option code as shown below
using number buttons on the remote control unit.
4. To reset the software, press [PAUSE] and [5] but-
tons on the remote control unit.
The option code is changed.
Model Option Code
21PV375/07 2992
21PV375/01 2994
3058 (Greek)
21PV375/58 2995
21PV375/39 2961

1-6-11 T6500EA
1. DC114V (+B) Adjustment
Purpose: To obtain correct operation.
Symptom of Misadjustment: The picture is dark and
unit does not operate correctly.
Note: TP503(+B), TP504(GND), VR601 --- H.V./
Power Supply CBA
1. Connect the unit to AC Power Outlet. (exact
AC230V)
2. Input a color bar signal from RF (or Ext.) input and
leave it for at least 20 minutes.
3. Connect DC Volt Meter to TP503(+B) and
TP504(GND).
4. Adjust VR601 so that the voltage of TP503(+B)
becomes +114±0.5V DC.
2. H Adjustment
Purpose: To get correct horizontal position and size of
screen image.
Symptom of Misadjustment: Horizontal position and
size of screen image may not be properly displayed.
Note: R590 --- H.V./Power Supply CBA
1. Connect Frequency Counter to R590.
2. Set the unit to the Ext. mode and no input is neces-
sary. Enter the Service mode.
(See page 1-6-10.)
3. Operate the unit for at least 20 minutes.
4. Press [2] button on the remote control unit and
select H-Adj Mode.
5. Press [P+/P-] buttons on the remote control unit so
that the display will change [0] to [7.]
At this moment, choose display [0] to [7] when the
Frequency counter display is closest to
15.625kHz±75Hz.
6. Turn the power off and on again.
Test point Adj. Point Mode Input
TP503
(+B),
TP504
(GND)
VR601 RF
(or Ext.)
Color
Bar
Ta p e M . EQ . S p e c.
--- DC Voltmeter,
Plastic Tip Driver +114±0.5V DC
Test point Adj. Point Mode Input
R590 P+/P-
buttons Ext. ---
Tape M. EQ. Spec.
--- Frequency Counter 15.625kHz±75Hz

1-6-12 T6500EA
3. C-Trap Adjustment
Purpose: To get minimum leakage of the color signal
carrier.
Symptom of Misadjustment: If C-Trap Adjustment is
incorrect, stripes will appear on the screen.
Note: J349F3 (B-Out)--- Main CBA
1. Connect Oscilloscope to J349F3.
2. Input a color bar signal from RF (or Ext.) input.
Enter the Service mode. (See page 1-6-10.)
3. Press [0] button on the remote control unit and
select C-TRAP Mode.
4. Press [P+/P-] buttons on the remote control unit so
that the carrier leakage B-Out (4.43MHz) value
becomes minimum on the oscilloscope.
5. Turn the power off and on again.
4. How to measure the standard
V-ENV value of Digital Studio
Picture Control
Purpose: To set the recording condition appropriate
for the recording tape.
Symptom of Misadjustment: Recording or playing
back picture quality may fall. The picture will be tinted.
1. Insert a new tape (type: E180) for the DSPC align-
ment into the TV/VCR.
2. Input the black raster signal from the video input
jack (VIDEO-IN).
3. Enter the Service Mode. (See page 1-6-10.)
4. To enter the DSPC mode, press [1] button on the
remote control unit. Recording starts automatically
and “DSPC” appears on the display.
5. Recording continues for 10 seconds in SP mode.
Note: Since the reference value of LP V-ENV is
computed from the reference value of SP V-ENV,
there is no need to survey it.
6. The tape is rewinded to the recording start point.
7. The unit enters the play mode automatically and
the V-ENV levels of each the reference value of SP
mode and the computing value of LP mode are
memorized into the EEPROM.
8. "OK" or "NG" appears on upper left corner of the
screen with blueback.
In case of "OK": "OK" (green) is indicated without
ejecting tape.
In case of "NG": "NG" (red) is indicated with eject-
ing tape.
l
Test point Adj. Point Mode Input
J349F3
(B-OUT)
P+/P-
buttons
RF
(or Ext.) Color Bar
Ta p e M . E Q . S p e c .
--- Oscilloscope,
Pattern Generator 200mVp-p Max.
Figure
minimum
Fig. 1
DSPC
VIDEO INPUT JACK (Ext. input)
TVCR
Fig. 2
NG
Abnormal
OK
Normal
TVCR TVCR
Fig. 3

1-6-13 T6500EA
5. SECAM Black Level Adjustment
Purpose: To set Black Level of the SECAM signal R-
Y/B-Y to Ref. level.
Symptom of Misadjustment: If Black Level of the
SECAM signal R-Y/B-Y is incorrect, the picture is blu-
ish or reddish in grayscale compared with PAL signal.
1. Degauss the CRT and allow CRT to operate for 20
minutes before starting the alignment.
2. Input the SECAM Gray Scale signal from Ext.
input.
3. Enter the Service Mode. (See page 1-6-10.)
4. To enter the C/D/S mode, press [ -] on the
remote control unit.
5. To select SBR (SECAM Black Level R-Y), press [6]
button on the remote control unit.
6. Press [P+/P-] buttons to adjust Y signal to the black
ref. level.
7. To select SBB (SECAM Black Level B-Y), press [7]
button on the remote control unit.
8. Press [P+/P-] buttons to adjust Y signal to the black
ref. level.
6. V. Size Adjustment
Purpose: To obtain correct vertical height of screen
image.
Symptom of Misadjustment: If V. Size is incorrect,
vertical height of image on the screen may not be
properly displayed.
1. Enter the Service mode. (See page 1-6-10.)
Press [9] button on the remote control unit and
select V-S Mode. (Press [9] button then display will
change to V-P and V-S).
2. Input monoscope pattern and leave it for at least 20
minutes.
3. Press [P+/P-] buttons on the remote control unit so
that the monoscope pattern is 90±5% of display
size and the circle is round.
7. V. Shift Adjustment
Purpose: To obtain correct vertical position of screen
image.
Symptom of Misadjustment: If V. position is incor-
rect, vertical position of image on the screen may not
be properly displayed.
1. Enter the Service mode. (See page 1-6-10.)
Press [9] button on the remote control unit and
select V-P Mode. (Press [9] button then display will
change to V-P and V-S).
2. Input monoscope pattern and leave it for at least 20
minutes.
3. Press [P+/P-] buttons on the remote control unit so
that the top and bottom of the monoscope pattern
are equal to each other.
Te s t
point Adj. Point Mode Input
J361G4 P+/P-
buttons Ext.
SECAM
Gray
Scale
Tape M. EQ. Spec.
---
Pattern Generator,
Analog Oscilloscope (unus-
able Digital Oscilloscope)
---
5mV/Div (10:1 Prove)
Y Signal
1H
1H
1H
Black REF. Level
Fig. 4
Test point Adj. Point Mode Input
Screen P+/P-
buttons
RF
(or Ext.) Monoscope
Tape M. EQ. Spec.
--- Pattern Generator 90±5%
Test point Adj. Point Mode Input
Screen P+/P-
buttons
RF
(or Ext.) Monoscope
Tape M. EQ. Spec.
--- Pattern Generator 90±5%

1-6-14 T6500EA
8. H. Shift Adjustment
Purpose: To obtain correct horizontal position and
size of screen image.
Symptom of Misadjustment: Horizontal position and
size of screen image may not be properly displayed.
1. Enter the Service mode. (See page 1-6-10.)
Press [8] button on the remote control unit and
select H-P Mode.
2. Input monoscope pattern and leave it for at least 20
minutes.
3. Press [P+/P-] buttons on the remote control unit so
that the left and right side of the monoscope pattern
are equal to each other.
4. Turn the power off and on again.
9. Cut-off Adjustment
Purpose: To adjust the beam current of R, G, B, and
screen voltage.
Symptom of Misadjustment: White color may be
reddish, greenish or bluish.
Notes:
Screen Control (FBT) --- H.V./Power Supply CBA
FBT= Fly Back Transformer
Use the Remote Control Unit
1. Degauss the CRT and allow CRT to operate for 20
minutes before starting the alignment.
2. Set the screen control to minimum position. Input
the Black raster signal from RF (or Ext.) input.
3. Enter the Service Mode. (See page 1-6-10.)
Dimmed horizontal line appears on the CRT.
4. To enter the C/D/S mode, press the [ -] button
on the remote control unit.
5. To enter the CUT OFF (R) mode, press [1] button
on the remote control unit.
6. Turn the screen control up until dimmed horizontal
line appears.
7. Press the [P+/P-] buttons until the horizontal line
becomes white.
8. To enter the CUT OFF (G) mode, press [2] button
on the remote control unit.
9. Press the [P+/P-] buttons until the horizontal line
becomes white.
10.To enter the CUT OFF (B) mode, press [3] button
on the remote control unit.
11.Press the [P+/P-] buttons until the horizontal line
becomes white.
12.Turn the screen control so that the horizontal line
adjusted white looks lightly.
13.Turn the power off and on again.
Test point Adj. Point Mode Input
Screen P+/P-
buttons
RF
(or Ext.) Monoscope
Tape M. EQ. Spec.
--- Pattern Generator 90±5%
Test point Adj. Point Mode Input
Screen Screen-Control,
P+/P-buttons
RF
(or Ext.)
Black
Raster
Tape M. EQ. Spec.
--- Pattern Generator See Reference
Notes below

1-6-15 T6500EA
10. White Balance Adjustment
Purpose: To mix red, green and blue beams correctly
for pure white.
Symptom of Misadjustment: White becomes bluish
or reddish.
Note: Use remote control unit
1. Operate the unit more than 20 minutes.
2. Face the unit to east. Degauss the CRT using De-
gaussing Coil.
3. Input the White Raster (APL 100%).
4. Set the color analyzer to the CHROMA mode and
after zero point calibration, bring the optical recep-
tor to the center on the tube surface (CRT).
5. Enter the Service mode. Press [ -] button on the
remote control.
6. Press [4] button on the remote control unit for Red
adjustment. Press [5] button on the remote control
unit for Blue adjustment.
7. In each color mode, Press [P+/P-] buttons to adjust
the values of color.
8. Adjusting Red and Blue color so that the tempera-
ture becomes 8500K (x : 290 / y : 300) ±3%.
9. At this time, Re-check that Horizontal line is white.
If not, Re-adjust Cut-off Adjustment until the Hori-
zontal Line becomes pure white.
10. Turn off and on again to return to normal mode. Re-
ceive APL 100% white signal and Check Chroma
temperatures become 8500K (x : 290 / y : 300) ±3%.
Note: Confirm that Cut Off Adj. is correct after this
adjustment, and attempt Cut Off Adj. if needed.
11. Sub-Brightness Adjustment
Purpose: To get proper brightness.
Symptom of Misadjustment: If Sub-Brightness is
incorrect, proper brightness cannot be obtained by
adjusting the Brightness Control.
Note: Bar (A) in Fig. 7 --- 0 IRE
1. Enter the Service Mode. (See page 1-6-10.)
Then input SYMPTE signal from RF (or Ext.) input
and leave it for at least 20 minutes.
2. Press MENU button. (Each time MENU button is
pressed, display will change BRT, CNT, COL, TNT,
and SHP in that order.) Select BRT and press [P+/
P-] buttons so that the bar (A) in Fig. 6 is just visi-
ble.
3. Turn the power off and on again.
Test point Adj. Point Mode Input
Screen Screen-Control,
P+/P-buttons
RF
(or Ext.)
White
Raster
(APL 100%)
Ta p e M . EQ . S p ec .
--- Pattern Generator,
Color analyzer See below
Figure
Color Ajalyzer Fig. 5
Test point Adj. Point Mode Input
Screen P+/P-
buttons
RF
(or Ext.) SYMPTE
Tape M. EQ. Spec.
--- Pattern
Generator See below
Figure
Black
White
This bar
(A) just
visible
ABC
Fig. 6

1-6-16 T6500EA
12. Setting for CONTRAST,
COLOR, TINT and SHARP
Data Values
General
1. Enter the Service mode. (See page 1-6-10)
2. Press MENU button. (Each time MENU button is
pressed, display will change BRT, CNT, COL, TNT,
and SHP in that order.)
CONTRAST (CNT)
1. Press "MENU" button on the remote control unit.
Then select CNT display.
2. Press [P+/P-] buttons on the remote control unit so
that the value of "CONTRAST" (CNT) becomes 83.
COLOR (COL)
1. Press "MENU" button on the remote control unit.
Then select "COLOR" (COL) display.
2. Press [P+/P-] buttons on the remote control unit so
that the value of "COLOR" (COL) becomes 65.
TINT (TNT)
1. Press "MENU" button on the remote control unit.
Then select "TINT" (TNT) display.
2. Press [P+/P-] buttons on the remote control unit so
that the value of "TINT" (TNT) becomes 68.
SHARP (SHP)
1. Press "MENU" button on the remote control unit.
Then select "SHARP" (SHP) display.
2. Press [P+/P-] buttons on the remote control unit
and select "0."
13. Focus Adjustment
Purpose: Set the optimum Focus.
Symptom of Misadjustment: If Focus Adjustment is
incorrect, blurred images are shown on the display.
Note: Focus VR (FBT) --- H.V./Power Supply CBA
FBT= Fly Back Transformer
1. Operate the unit more than 30 minutes.
2. Face the unit to the East and degauss the CRT
using a Degaussing Coil.
3. Input the monoscope pattern.
4. Adjust the Focus Control on the FBT to obtain clear
picture.
Test point Adj. Point Mode Input
Screen Focus Control RF
(or Ext.) Monoscope
Ta p e M . E Q . Sp e c.
--- Pattern Generator See below.

1-6-17 T6500EA
14. Head Switching Position Adjustment
Purpose: Determine the Head Switching Point during
Playback.
Symptom of Misadjustment: May cause Head
Switching Noise or Vertical Jitter in the picture.
Note: Unit reads Head Switching Position automati-
cally and displays it on the screen (Upper Left Corner).
Manual Adjustment
1. Enter the Service Mode. (See page 1-6-10.)
2. Playback the test tape (FL6A).
3. Press the number [5] button on the remote control
unit.
4. The Head Switching position will display on the
screen; if adjustment is necessary follow step 4.
7.0H (448µs) is preferable.
5. Press [P+/P-] buttons on the remote control unit if
necessary. The value will be changed in 0.5H steps
up or down. Adjustable range is up to 9.5H. If the
value is beyond adjustable range, the display will
change as:
Lower out of range: 0.0H
Upper out of range: -.-H
6. Turn the power off and on again.
Auto Adjustment
1. Load the test tape (FL6A) that have been recorded
the Head Switching Position Value.
2. Enter the service mode.
3. Press [3] button on the remote control unit in the
tape stop mode. The unit playback and adjust the
Head Switching Position automatically.
4. The adjusting report appears on upper left corner
of the screen with blueback.
In case of adjusting correctly: the Head Switching
Position Value recorded in the test tape (FL6A) is
indicated with green.
In case of adjusting incorrectly: "NG" (red) is indi-
cated with ejecting tape.
l
NG
Incorrect
7.0H
Correct
TVCR TVCR
Fig. 7

1-6-18 T6500EA
Main CBA Top View
H.V./Power Supply CBA Top View
TEST POINT INFORMATION
: Indicates a test point with a jumper wire across a hole in the PCB.
Test Point
TP001
TP002
TP008
TP503
TP504
Used in: Page No.
Mechanical Alignment Procedures
Mechanical Alignment Procedures
Mechanical Alignment Procedures
Electrical Adjustment Instructions
Electrical Adjustment Instructions
2-3-3
2-3-3, 2-3-4
2-3-3, 2-3-4
1-6-10
1-6-10
TEST POINTS NOT USED IN ELECTRICAL ADJUSTMENTS
TP002
RF-SW
TP007
N-A-PB
TP008
C-PB J349F3
B-OUT
TP003
V-OUT
TP001
CTL
IC202
J361G4
(SECAM
Black Level
Adjustment)
TP504
GND
TP503
+B
VR601
+B ADJ
R590
(H Adjustment)
Focus-control (Upper side) Screen-control (Lower side)
Adjustment Points and Test Points

CONTROL
HEAD
CL402
AC HEAD ASSEMBLY
MAIN CBA
KEY-2
RF-SW
ST-SENS.
T-REEL
KEY-1
DV-SYNC
C-SYNC C-SYNC
V-ENV
REMOTE
CTL(+)
RESET
C-ROTA
1ST-SND-H 1ST-SND-H
REC-SAFETY
A-MUTE-H
SCL
SDA
A-MUTE-H
CTL(-)
RF-SW
DV-SYNC
V-ENV
C-ROTA
END-SENS.
IC201
(SERVO/SYSTEM CONTROL)
14
94
95
10
4
80
34
18
15
6
13
74
31
21
20
72
8
7
RS201
REMOTE
SENSOR
CTL AMP-OUT
97
AL+5V
D201
S-LED
CTL
TP001
(DECK ASSEMBLY)
Servo/System Control Block Diagram
BLOCK DIAGRAMS
END-SENS. T-REEL
ST-SENS.
Q202 Q205Q201
Q204
RESET
TIMER+5V
83
32
33
47
EXT-L
SP-MUTE SP-MUTE 44
SW211
REC
SAFETY
FROM/TO VIDEO
BLOCK
FROM/TO AUDIO
BLOCK
KEY SWITCH
KEY SWITCH
SW201 SW205
1-7-15 1-7-16 T6500BLS
SCL
(MEMORY)
SDA
6
5
REC LED 24
REC LED 23
P-DOWN-L 85
P-ON-H P-DOWN-L
P-ON-H
67
D202 REC
AL+5V
LD-SW9
I2C-OPEN 45
71
AL+5V
SW212
LD-SW
CS
7
FROM/TO POWER
SUPPLY BLOCK
SW206 SW210
SDA
SCL
FROM/TO CHROMA
BLOCK
SDA
SCL
IC202
WF3
I2C-OPEN
M
M
LOADING
MOTOR
CYLINDER ASSEMBLY CAPSTAN MOTOR
SENSOR CBA
(ST-SENSOR)
SENSOR CBA
(END-SENSOR)
DRUM
MOTOR
PG
SENSOR
4C-F/R
1CM+12V/20.5V
11AL+12V(1)
2P-ON+5V(3)
6FG-GND
3C-FG
5
C-CONT
10M-GND
7LD-CONT
8D-CONT
9
D-PFG
12VG
CN201
C-FG
C-CONT
D-PFG
C-F/R
90
76
87
78
LD-CONT
81
D-CONT
77
CM+12V/20.5V
AL+12V(1)
P-ON+5V(3)
M
CAPSTAN
MOTOR
NOTE FOR WIRE CONNECTORS:
1. PREFIX SYMBOL "CN" MEANS CONNECTOR.
(CAN DISCONNECT AND RECONNECT.)
2. PREFIX SYMBOL "CL" MEANS WIRE-SOLDER
HOLES OF THE PCB.
(WIRE IS SOLDERED DIRECTLY.)
TEST POINT INFORMATION
:INDICATES A TEST POINT WITH A JUMPER WIRE ACROSS A HOLE IN THE PCB.
:USED TO INDICATE A TEST POINT WITH A COMPONENT LEAD ON FOIL SIDE.
:USED TO INDICATE A TEST POINT WITH NO TEST PIN.
:USED TO INDICATE A TEST POINT WITH A TEST PIN.
D-REC-H
TRICK-H
SECAM-H
DAVN-L DAVN-L
SECAM-H
TRICK-H
D-REC-H
SDA
SCL
42
48
29
EXT-L
SCART-H
SCART-MUTE
SCART-H
SCART-MUTE
C-POWER-SW C-POWER-SW
66
S-REEL
PI201
79
D204 STANDBY
S-REEL
2CTL(+)
1CTL(-)
L
I, J, K
Comparison Chart of
Models & Marks
Model Mark
21PV375/07
21PV375/01
21PV375/58
21PV375/39
I
J
K
L
+33V
[ 21PV375/ ( 01, 07, 39, 58 ) ]

CYLINDER ASSEMBLY
V(R)
V-COM
V(L)
CL401
1
2
3
Video Block Diagram
1-7-17 1-7-18 T6500BLV
(DECK ASSEMBLY)
VIDEO (R)
HEAD
SP
HEAD
AMP
REC FM
AGC
FROM/TO SERVO/SYSTEM
CONTROL BLOCK
FROM /TO
SERVO/SYSTEM
CONTROL BLOCK
C-SYNC
TRICK-H
RF-SW
D-REC-H
C-ROTA
D-V-SYNC
V-ENV
SECAM-H
LUMINANCE
SIGNAL
PROCESS
CHROMINANCE
SIGNAL
PROCESS
PB-H OUT
C-SYNC
V-ENV
D-V-SYNC
RF-SW/C-ROTA
VIDEO (L)
HEAD
IC401
(VIDEO/AUDIO SIGNAL PROCESS)
REC-VIDEO SIGNAL PB-VIDEO SIGNAL MODE: SP/REC
SERIAL
DECORDER
IC471 (PAL/SECAM DECTECOTR)
PAL/SECAM
DETECTOR
48
50
52
54
56
61
63
96
95
93
94
CHARA.
INS.
CCD 1H DELAY
BYPASS
MUTE
PB/EE
TUNER2
TUNER1
TUNER2
TUNER1
MUTE
PB/EE
LINE
SCART
LINE
SCART
AGC
PR
R
Y
C
P
R P R P
Y. DELAY
Y/C
MIX
+
21
7978
AGC VXO
FBC
1/2
58 59
65
2928 44
17
12
2
16
29
1
28
IC101 (VPS)
VPS-V
SDA
DAVN-L
SCL
SDA
SCL 6
14
7
16
DAVN-L
69684643
" " = SMD
NOTE FOR WIRE CONNECTORS:
1. PREFIX SYMBOL "CN" MEANS CONNECTOR.
(CAN DISCONNECT AND RECONNECT.)
2. PREFIX SYMBOL "CL" MEANS WIRE-SOLDER
HOLES OF THE PCB.
(WIRE IS SOLDERED DIRECTLY.)
TEST POINT INFORMATION
:INDICATES A TEST POINT WITH A JUMPER WIRE ACROSS A HOLE IN THE PCB.
:USED TO INDICATE A TEST POINT WITH A COMPONENT LEAD ON FOIL SIDE.
:USED TO INDICATE A TEST POINT WITH NO TEST PIN.
:USED TO INDICATE A TEST POINT WITH A TEST PIN.
67
84
62
70
D-REC-H 80
TP003
V-OUT
WF5
TP008
C-PB
WF6
MAIN CBA
TP002
RF-SW
WF1
14
X401
4.43MHz
24
24
Q703
Q705
JK701
V-IN
VIDEO OUT
VIDEO OUT
TU001
TU002
BUFFER
20
BUFFER
BUFFER
Q401
TP010
GND
TO CHROMA
BLOCK VIDEO
TU1-VIDEO
TO CHROMA BLOCK C-VIDEO
JK703
V-IN
V-OUT 19
WF4
WF2
I, J, K
L
Comparison Chart of
Models & Marks
Model Mark
21PV375/07
21PV375/01
21PV375/58
21PV375/39
I
J
K
L

Audio Block Diagram
REC
AMP
100 3
AUTO
BIAS
2
1
+5V
+5V
Q854
Q856
BIAS
OSC
Q855
Q853(PB=ON)
Q852(PB=ON)
Q851
SWITCHING
D-REC-OFF
5EQ
AMP 98
7
LINE
AMP
REC-ON
TP007
AUDIO HD-SW
CONTROL
MUTE 11
6
PB-ON
SW CTL
SP/LP-ON
P
R
ALC
DET
ALC
IC401
(AUDIO SIGNAL PROCESS)
IC701 (SW)
15
13
17
3 A-PB/REC
CL402
4 A-COM
6 AE-H
5 FE-H
AUDIO
HEAD
AUDIO
ERASE
HEAD
ACE HEAD ASSEMBLY
FE HEAD
1 FE-H
2 FE-H-GND
CL403
1-7-19 1-7-20 T6500BLA
MAIN CBA
PB-AUDIO SIGNAL REC-AUDIO SIGNAL Mode : SP/REC
71
A-MUTE-H
SCL
SDA FROM/TO
SERVO/SYSTEM
CONTROL BLOCK
FROM SERVO
/SYSTEM
CONTROL
BLOCK
FULL
ERASE
HEAD
68 69
SERIAL
DECODER
(DECK ASSEMBLY)
" " = SMD
NOTE FOR WIRE CONNECTORS:
1. PREFIX SYMBOL "CN" MEANS CONNECTOR.
(CAN DISCONNECT AND RECONNECT.)
2. PREFIX SYMBOL "CL" MEANS WIRE-SOLDER
HOLES OF THE PCB.
(WIRE IS SOLDERED DIRECTLY.)
TEST POINT INFORMATION
:INDICATES A TEST POINT WITH A JUMPER WIRE ACROSS A HOLE IN THE PCB.
:USED TO INDICATE A TEST POINT WITH A COMPONENT LEAD ON FOIL SIDE.
:USED TO INDICATE A TEST POINT WITH NO TEST PIN.
:USED TO INDICATE A TEST POINT WITH A TEST PIN.
12
16
INV
ATT
IC301
71
IC151 (AMP)
(VIDEO/AUDIO/CHROMA/DEFLECTION/IF)
SP 1
SP-GND 2
JK151
HEADPHONE JACK
SP151
SPEAKER
CN151 CL801
SP-MUTE
(FROM PIN 44 OF IC201)
OUTPUT
AMP
50
52
53
54
MUTE
5
1
215
5
34
13
12 14
SW CTL
13
12
14
21
21
2
1
AUDIO OUT
AUDIO OUT
TU001
TU002
JK702
A-IN
IC702 (SW)
TU1
TU2
11
JK703
A-IN
A-OUT
Q701
1011 9
SCART-H
EXT-L
1ST-SND-H
SCART-MUTE
TUNER1
TUNER1
TUNER2
LINE
LINE
A-OUT
ATT
AUDIO
MUTE
WF7
WF9
WF8